Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and...
Transcript of Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and...
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AI-TEK INSTRUMENTS IS AN AS9100 ISO 9001 COMPANY
Table of Contents
SENSORS
Introduction 3
Passive Sensor Selection Guide 4
Magnetic Sensor Selection 6
Calculation of Output Voltage 7
Passive Speed Sensors 8
Listed Passive Speed Sensors ULCSAATEXIECEX
Side Look Sensor 21
Hall Effect Sensors 23
RH amp DH Series Active Sensor Selection Guide 24
RH Series Zero Velocity Magnetic 26
DH Series Zero Velocity Magnetic 32
BH Series Bi-Directional Dual Channel 37
38
BH Series Continued 39
Digital Signal Distance Amplifier (DSDA) 42
Connectors and Cable Assemblies 44
46
Tachometer Transducers 48
Sensor Mounting Brackets 50
Principles of Operation 51
Part Number Index 52
1
18
BH Series Active Sensor Selection Guide
Split Gears Solid Gear
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Speed Sensors
Al-Tek Instruments manufactures hundreds of different designs of speed sensors This catalog
lists the standard units we developed based on years of design experience and knowledge to
provide you readily available products to solve your sensor solution to your speed control or
indication needs Many of the hundreds of Al-Tek speed sensors we produce are designed for
special applications which allows us to offer a highly versatile and flexible product line
Designed to meet severe industrial automotive and aerospace environments Al-Tek speed
sensors will provide reliable around-the-clock operation for many years under adverse conditions
Our design engineers have paid particular attention to trouble areas such as vibration shock
extreme temperatures wet oily and corrosive atmospheres Many of our speed sensors are
specifically designed for high temperature high or low speeds various targets or for precise
accuracy and timing applications Al-Tek uses primarily the two technologies of variable reluctance
and Hall effect to convert motion into an electronic signal By selecting the best technology for a
specific application we can assure years of reliable performance
This catalog offers a variety of options readily available through our distributors If you cannot
find a catalog item to meet your specific requirements please contact your area distributor with your
specifics there is probably an existing design which comes close to your requirements As a world
leader in producing quality speed sensors Al-Tek Instruments will provide a superb priceperfor-
mance ratio
Passive Magnetic Sensors
Control and protection circuits have relied on variable reluctance technology for years With few
components and no moving parts the passive magnetic speed sensors can provide a signal from
the inside of an aircraft engine at temperatures approaching 425degC or from the hub of an automobile
wheel at high shock and vibration The advantages of these sensors are
bull High reliability
bull Simple installation
bull Long life due to no moving parts or contacts
bull Self powered operation
bull Wide variety of shapes and sizes
bull Easy alignment
bull Can be designed for almost any environment
Due to their flexibility you will find Al-Tek variable reluctance sensors in everything from low-cost
consumer products to highly-accurate automotive engine ignition systems to flight-worthy aircraft
engine controls
It is the customerrsquos responsibility to determine whether the product is proper for customerrsquos use and application
The information contained herein is subject to change without notice Refer to the factory for verification of any details
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Passive Sensor Selection Guide
Thread SizePart
Number
Output Guarentee
Voltage(P-P)
TerminationThreadLength
(in)
SensorLength
(in)Agency
ApprovalTemp Rating
(deg C) Page34-20 70085-1010-405 94 Cable 275 4 X -55 to 22034-20 70085-1010-413 134 Wires 15 275 X -65 to 9534-20 70085-1010-005 134 Wires 1875 3125 X -65 to 9534-20 70085-1010-541 134 Cable 188 313 X -20 to 22034-20 70085-1010-542 134 Cable 275 4 X -20 to 22034-20 70085-1010-327 134 Wires 275 4 X -65 to 9534-20 70085-1010-540 134 Cable 4 525 X -20 to 22034-20 70085-1010-328 134 Wires 4 525 X -65 to 9534-20 70085-1010-543 134 Cable 6 725 X -20 to 22034-20 70085-1010-414 134 Wires 6 725 X -65 to 9534-20 70085-3030-222 134 Cable 275 4 X -65 to 95
M16 x 15 70085-1010-425 49 Connector 3 4125 -55 to 107M16 x 15 70085-3030-235 134 Cable 15 275 X -65 to 95M16 x 15 70085-3030-237 134 Cable 15 275 X -65 to 95
58-18 70084-1713-111 134 Connector 1125 25 -40 to 15058-18 70085-1010-001 34 Connector 1125 225 -55 to 10758-18 70085-1010-003 34 Connector 2625 375 -55 to 10758-18 70085-1010-018 34 Connector 3625 475 -55 to 10758-18 70085-1010-118 34 Connector 5 6125 -55 to 10758-18 70085-1010-002 129 Connector 1125 225 -55 to 10758-18 70085-1010-175 129 Connector 2625 375 -55 to 10758-18 70085-1010-026 129 Connector 3625 475 -55 to 10758-18 70085-1010-408 129 Connector 5 6125 -55 to 10758-18 70085-1010-028 215 Connector 1437 253 -70 to 10758-18 70085-1010-004 43 Wires 1125 2125 -70 to 10758-18 70085-1010-469 43 Wires 2750 375 -70 to 10758-18 70085-1010-131 151 Cable 1687 1687 -55 to 10758-18 70085-1010-214 151 Cable 2937 2937 -55 to 10758-18 70085-1010-078 34 Wires 1812 1812 -55 to 10758-18 70085-1010-137 34 Wires 2937 2937 -55 to 10758-18 70085-1010-220 128 Wires 2937 2937 -55 to 10758-18 70085-1010-421 49 Connector 2475 36 -55 to 10758-18 70085-1010-424 49 Connector 4493 5618 -55 to 10758-18 70085-1010-081 134 Wires 15 275 X -65 to 9558-18 70085-1010-544 134 Cable 188 313 X -20 to 22058-18 70085-1010-411 134 Wires 1875 3125 X -65 to 9558-18 70085-1010-329 134 Wires 275 4 X -65 to 9558-18 70085-1010-330 134 Wires 4 525 X -65 to 9558-18 70085-1010-412 134 Wires 6 725 X -65 to 9558-18 70085-1010-404 134 Cable 15 275 X -20 to 22058-18 70085-1010-406 134 Cable 275 4 X -20 to 22058-18 70085-1010-417 134 Cable 4 525 X -20 to 22058-18 70085-1010-420 134 Cable 6 725 X -20 to 22058-18 70085-1010-403 94 Cable 15 275 X -55 to 22058-18 70085-1010-415 94 Cable 4 525 X -55 to 22058-18 70085-1010-416 94 Cable 6 725 X -55 to 22058-18 70085-3030-111 134 Cable 15 275 X -65 to 9558-18 70085-3030-112 134 Cable 275 4 X -65 to 9558-18 70085-3030-113 134 Cable 4 525 X -65 to 9558-18 70085-3030-114 134 Cable 6 725 X -65 to 9558-18 70085-3030-211 94 Cable 15 275 X -65 to 9558-18 70085-3030-212 134 Cable 275 4 X -65 to 9558-18 70085-3030-213 94 Cable 4 525 X -65 to 9558-18 70085-3030-214 94 Cable 6 725 X -65 to 95
4
58-18 70085-8080-003 128 Wires 1812 1812 -55 to 107
Output is based on 030 air gap at 500 IPS
19181819191819181918201220201188888888999
1010101011
1212
18191818181819191919191919202020202020202011
Passive Sensor Selection Guide
Thread Size
Part
Number
Output
Guarentee
Voltage
(P-P)
Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval
Temp Rating
(deg C) Page
38-24 70085-1010-007 16 Wires 0812 1252 -55 to 107
38-24 70085-1010-056 16 Wires 3625 4065 -55 to 107
38-24 70085-1010-086 36 Wires 0812 1252 -55 to 107
38-24 70085-1010-355 36 Wires 0812 1252 -55 to 107
38-24 70085-1010-041 2 Wires 0812 1252 -73 to 232
38-24 70085-1010-428 2 Wires 15 194 -73 to 232
38-24 70085-1010-458 2 Wires 3625 4065 -73 to 232
38-24 70085-1010-174 36 Wires 0812 1252 -65 to220
38-24 70085-8080-001 42 Wires 15 15 -55 to 107
375 no thd 70085-1010-314 42 Cable 1375 1375 -30 to 85
375 no thd 70085-8080-004 42 Cable 25 25 -30 to 85
14-40 70085-1010-024 04 Wires 0687 1 -73 to 232
14-40 70085-1010-472 04 Wires 0687 1187 -73 to 232
14-40 70085-1010-227 04 Wires 1687 2 -73 to 232
10-32 70085-1010-037 06 Wires 05 05 -55 to 107
10-32 70085-1010-299 06 Wires 125 125 -55 to 107
10-32 70085-1010-182 03 Wires 05 05 -73 to 232
1032 70085-1010-289 03 Wires 125 125 -73 to 232
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131313131414141415151516161617171717
Output is based on 030 air gap at 500 IPS
Magnetic Sensor Selection
The following information is supplied for assistance in selecting the proper sensors for your
particular applications One of the fundamental questions to be answered is ldquoWill there be enough
sensor output voltage at the lowest operating speedrdquo
The sensor output voltage depends on
bull Surface Speed - speed target passes pole piece
bull Gap - distance between target and pole piece
bull Target Size - geometric relationship of pole piece and target
bull Load Impedance - connected to sensor
The surface speed of a gear depends upon its diameter and RPM Surface speed is expressed in
terms of inches per second (IPS)
Surface Speed (IPS) = RPM x Outside Dia (in) x π60
There is an optimum pitch (or tooth size) to
obtain the highest possible output from a sensor
but this is seldom necessary Figure 4 illustrates
the relationship of tooth size and spacing for
optimum magnetic sensor output Using a fine
tooth gear relative to a large pole piece diameter
sensor results in a lower generated voltage
because the flux also passes into adjacent teeth
resulting in a lower total flux variation
The relationship between pole piece diameter and
gear pitch and its effect on the output of a sensor
is described in Table A
Table A Relative Output Vs Gear Pitch
The load impedance with relation to the internal impedance of the sensor dictates the amount
of sensor output voltage that will be seen by that load Magnetic sensors are designed with the
lowest practical impedance consistent with providing maximum output The load impedance should
be high in relation to the impedance of the sensor to minimize the voltage drop across the coil and
to deliver the maximum output to the load
Most of the output voltages listed in this catalog are based on a load impedance of 100k ohms
To use a generality the load impedance should be 10 times that of the sensor
In order to assist you in selecting your sensor Al-Tek Instruments has developed an output vs
speed curve for each sensor family By looking at the application extremes of highest speedlowest
gap and lowest speedhighest gap the full variation of sensor output can easily be determined We
also specify each family in two ways Standard - minimum output voltage at 1000 IPS 0005 in
gap Guarantee Point - minimum output voltage at 500 IPS 0030 in gap Sensors with 187rdquo dia
pole piece are tested with an 8 DP gear 100k ohms load 106rdquo dia amp smaller pole piece sensors
are tested with a 20 DP gear 100k ohms load Sensors with connectors also use a 250 pf capaci-
tor shunted across the load
Figure 4 Sensor output as a functionof gear tooth size
Pole Piece Gear PitchDia (in) 8 12 16 20 24 32 48
187 100 083 033 016 mdash mdash mdash
106 141 141 127 100 070 028 007
093 125 125 125 100 075 037 012
062 095 107 100 100 092 090 036
040 100 100 100 100 100 090 060
1 Dimension of tooth 4 Pole piece diametertop surface
2 Tooth height 5 Air gap
3 Space between teeth 6 Gear face width
For maximum control and approximately sinusoidalwaveform the following conditions should be obtained
(1) equal to or slightly less than (4)
(2) equal to or more than (3)
(3) approximately 15 to 3 times (4)
(5) as small as possible 005rdquo minimum
(6) equal to or more than (4)
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Calculation of Output Voltage
Selection of the proper Al-Tek magnetic sensor may require the calculation of sensor output volt-age to assure proper operation in your specific application To assist in this area let us consider thefollowing typical application Requirement is speed display with overspeed and underspeed control aswell as 4-20 mA signal to a PLC Speed range is 0-3600 RPM with low speed set point at 300 RPMavailable shaft diameter for mounting a gear is 2000 in and a 030 in air gap is ideal
You have selected a Tachtrol 30 PN T77630-10 with a 60T steel split gear PN G79870-202-1901 andyou are considering to use sensor PN 70085-1010-001 The question is if the sensor has enoughoutput voltage at 300 RPM
We can list the following parameters
a Tachtrol 30 Load impedance - 12k-ohmsSensitivity - 200 mV peak
b Split gear Outside dia - 5166 in DP - 12No of Teeth - 60
c SensorStandard output voltage - 40V (P-P) minGuarantee Point - 34V P-P minDC Resistance - 130 ohms maxTypical inductance - 33 mH ref
Step 1 Calculate surface speed of gearSS = RPM x Outside Dia x π = 300 x 5166 x 314 SS = 81 IPS
60 60
Step 2 Determine Peak-to-Peak output voltageReferring to the performance curves of sensor PN 70085-1010-001 the min output voltageis approx03 V (P-P) at 81 IPS and 0030 in gap It is a fact that output voltage vs surfacespeed is a near linear function therefore another method of determining output voltage isto set up a ratio using the guarantee point
34V (P-P) = E E = 55V (P-P)500 IPS 81
Step 3 Correction for pitchFor a 0106 in pole piece dia and a 12 DP gear the correction factor from Table A is 1 41(See pg 5)
Ec= 55 x 141 = 78 V (P-P)
Step 4 Converting to peak voltage Simply divide by 2 Ec = 78 divide 2 = 39V peak
Step 5 Correction for loadThe 39V or 390mV sensor output voltage will be divided across the impedance of the loadand sensor The load impedance is 12000 ohms resistive The impedance of the sensor hasa resistive and inductive element At low frequencies the inductive element is very small andcan therefore be disregarded leaving the max DC resistance of 130 ohms for consideration
The load correction factor (fL) can be expressed as(fL) = Z (load) = 12000 = 99
Z (load) + Z (sensor) 12130
Ec = 99 x 390 = 386 mV peak
The final adjusted value is 386 mV peak
As stated earlier the sensitivity or threshold of the Tachtrol 30 is 200mV peak at the stated conditions the selection of PN 70085-1010-001 is acceptable
By setting up ratios you can determine that the minimum sensed speed is 155 RPM
If the final value of Ec had been slightly less than 200 mV a reduction of the air gap (from 030rdquo
to 025rdquo) would boost the output above 200 mV
If it should be determined that the required sensor cannot be selected from the catalog modelsthe best procedure is to compile a list of all your requirements and contact your area distributor toassist you in the selection of the correct sensor
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-001 1125 (2857)70085-1010-003 2625 (6667)70085-1010-018 3625 (9207)70085-1010-118 5000 (12700)(Select cable from group ldquoArdquo see index)
SpecificationsOutput Voltage (Standard) 40 V (P-P)Output Voltage (Guarantee Point) 34 V (P-P)DC Resistance 130 ohms maxTypical Inductance 33 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -55 to +107degCNet Weight 5 oz max
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-002 1125 (2857)70085-1010-175 2625 (6667)70085-1010-026 3625 (9207)70085-1010-408 5000 (12700)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 150 V (P-P)Output Voltage (Guarantee Point)129 V (P-P)DC Resistance 1500 ohms maxTypical Inductance 360 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -55 to +107degCNet Weight 5 oz max
Performance Curves
General Purpose
High Sensitivity
Based on 20 DP Gear
Based on 20 DP Gear
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Passive Speed Sensors
Dimensions in inches and (mm)
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-004 1125 (2857)70085-1010-469 2750 (6985)
Performance Curves
SpecificationsOutput Voltage (Standard) 43 V (P-P)Output Voltage (Guarantee Point) 43 V (P-P)DC Resistance 130 ohms maxTypical Inductance 32-46 mH refOutput Polarity Red lead positiveOperating Temperature -73 to +107degCLead length 10 ft (305 m)Net Weight 16 oz max
Ordering Part Thread Length (A)70085-1010-028 1437 (3650)(Select cable from group ldquoArdquo see index)
Power Output
Performance Curves
SpecificationsOutput Voltage (Standard) 75 V (P-P)Output Voltage (Guarantee Point) 215 V (P-P)DC Resistance 210 ohms maxTypical Inductance 50 to 95 mH refOutput Polarity Pin B positiveOperating Temperature -73 to +107deg CNet Weight 22 oz max
Conduit Fitting ndash General Purpose
Based on 8 DP Gear
Based on 20 DP Gear
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-07870085-1010-137
Performance Curves
SpecificationsOutput Voltage (Standard) 40 V (P-P)Output Voltage (Guarantee Point) 34 V (P-P)DC Resistance 130 ohms maxTypical Inductance 33 mH refOutput Polarity white lead positiveOperating Temperature -55 to +107degCLead Length -078 12 in (305 cm)
-137 24 in (609 cm)Net Weight 3 oz max
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-13170085-1010-214
SpecificationsOutput Voltage (Standard) 120 V (P-P)Output Voltage (Guarantee Point)151 V (P-P)
Typical Inductance 40-60 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107deg CCable Length 10 ft (305 m)Net Weight 5 oz max
Full Thread ndash Power Output
Performance Curves
Full Thread ndash General Purpose
Based on 8 DP Gear
Based on 20 DP Gear
180 (4572)(7772)
DC Resistance 250 ohms max
180306
(4572)(7772)
306
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Passive Speed Sensors
Dimensions in inches and (mm)
Full Thread ndash High Sensitivity
Ordering Part Thread Length (A)70085-8080-00370085-1010-220
Performance Curves
Molded ndash High Sensitivity
Ordering Part Thread Length (A)70084-1713-111 1125 (2857)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 190 V (P-P)Output Voltage (Guarantee Point) 139 V (P-P)DC Resistance 1200 ohms maxTypical Inductance 400 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -40 to +150deg CNet Weight 2 oz max
SpecificationsOutput Voltage (Standard) 150 V (P-P)Output Voltage (Guarantee Point) 128 V (P-P)
Typical Inductance 500 mH refOutput Polarity White lead positiveOperating Temperature -55 to + 107degCLead Length -003 12 in (305 cm)
-220 36 in (914 cm)Net Weight 3 oz max
6251588
58 ndash 18 FAMILY
Based on 20 DP Gear
Based on 20 DP Gear
180306
(4572)(7772)
DC Resistance 1430 ohms max
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Passive Speed Sensors
Molded
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-421 2475 (6287)70085-1010-425 3000 (7620)70085-1010-424 4493 (11412)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 63 V (P-P)Output Voltage (Guarantee Point) 49V (P-P)DC Resistance 250 ohms maxTypical Inductance 63 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -55 to +107deg CNet Weight 5 oz max
M16 x 15 Thd
Dimensions in inches and (mm)
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Passive Speed Sensors
Dimensions in inches and (mm)
General Purpose
Ordering Part Thread Length (A)70085-1010-007 812 (2062)70085-1010-056
Ordering Part Thread Length (A)70085-1010-086 812 (2062)70085-1010-355 812 (2062)
Performance Curves
High Sensitivity
38 ndash 24 FAMILY
SpecificationsOutput Voltage (Standard) 21 V (P-P)Output Voltage (Guarantee Point) 16 V (P-P)
Typical Inductance 22 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 6 in (152 cm)Net Weight 2 oz max
SpecificationsOutput Voltage (Standard) 55 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length -086 18 in (457 cm)Cable Length -355 40 in (1016 cm)Net Weight 2 oz max
Performance Curves
Based on 20 DP Gear
Based on 20 DP Gear
3625 (9208)
DC Resistance 125 ohms max
DC Resistance 960 ohms maxOutput Voltage (Guarantee Point) 42V (P-P)
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Passive Speed Sensors
Dimensions in inches and (mm)
38 ndash 24 FAMILY
General Purpose ndash High Temperature
Ordering Part Thread Length (A)70085-1010-041 812 (2062)70085-1010-428 1500 (3810)70085-1010-458
Performance Curves
SpecificationsOutput Voltage (Standard) 24 V (P-P)Output Voltage (Guarantee Point) 20 V (P-P)
Typical Inductance 21 mH refOutput Polarity White lead positiveOperating Temperature -73 to +232degCLead Length 40 in (1 m)Net Weight 2 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Ordering Part Thread Length (A)70085-1010-174 812 (2062)
Performance Curves
High Sensitivity - High Temperature
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 36V (P-P)
Output Polarity White lead positiveOperating Temperature -65 to +220degCCable Length 60 in (15 m)Net Weight 2 oz max
3625 (9208)
DC Resistance 125 ohms max
DC Resistance 705 ohms maxTypical Inductance 150 mH ref
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)
70085-8080-001 1500 (3810)
Full Thread ndash High Sensitivity
Smooth Body ndash High Sensitivity
Ordering Part 70085-1010-314 1375 (3493)70085-8080-004 2500 (6350)
Performance Curves
Performance Curves
38 ndash 24 FAMILY
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -55 to + 107degCLead Length 6 in (152cm)Net Weight 1 oz max
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -30 to +85degCLead Length -004 6 in (152cm)Cable Length -314 10ft (305m)Net Weight 3 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Length (A)
70085-1010-120 1250 (3175)
DC Resistance 960 ohms max
DC Resistance 960 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)
Performance Curves
Ordering Part Thread Length (A) (B)70085-1010-024 687 (1745) 313 (795)70085-1010-472 687 (1745) 500 (1270)70085-1010-227 1687 (4285) 313 (795)
SpecificationsOutput Voltage (Standard) 47 V (P-P)Output Voltage (Guarantee Point) 04 V (P-P)DC Resistance 125 ohms maxTypical Inductance 5-12 mH refOutput Polarity White lead positiveOperating Temperature -73 to 232degCLead Length 8 in (203 cm)Cable Length -472 60 in (15 m)Net Weight 2 oz max
B as ed on 20 DP G ear
and cable for extra protection Extra locknut provided
General Purpose - High Temperature
14 - 40 FAMILY
Egress is a 2-conductor AWG 26 shielded Teflon cable with 3 long shrink tubing over housing
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-037 500 (1270)70085-1010-299 1250 (3175)
Performance Curves
General Purpose ndash High Temperature
SpecificationsOutput Voltage (Standard) 13 V (P-P)Output Voltage (Guarantee Point) 6 V (P-P)DC Resistance 190 ohms maxTypical Inductance 10 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 18 in (457 cm)Net Weight 1 oz max
10 - 32 FAMILY
High Sensitivity
Ordering Part Thread Length (A)70085-1010-182 500 (1270)70085-1010-289 1250 (3175)
Performance Curves
SpecificationsOutput Voltage (Standard) 6 V (P-P)Output Voltage (Guarantee Point) 3 V (P-P)
Typical Inductance 2 mH refOutput Polarity White lead positiveOperating Temperature -73 to +150degCLead Length 18 in (457 cm)Net Weight 1 oz max
Based on 20 DP Gear
Based on 20 DP Gear
DC Resistance 50 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)Based on 8 DP Gear
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-413 1500 (3810)70085-1010-005 1875 (4763)70085-1010-327 2750 (6985)70085-1010-328 4000 (10160)70085-1010-414 6000 (15240)
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positiveOperating Temperature -65 to +95degCLead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1Groups E F G Temp Code T3C
Ordering Part Thread Length (A)70085-1010-081 1500 (3810)70085-1010-411 1875 (4763)70085-1010-329 2750 (6985)70085-1010-330 4000 (10160)70085-1010-412 6000 (15240)
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Lead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Based on 8 DP Gear
Groups E F G Temp Code T3C
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ULATEXCSA Sensors The products on pgs 18-20 are capable of up to a SIL 3 rating
ULATEXCSA Sensors
ATEX Group II Category 3G Zone 2
ATEX Group II Category 3G Zone 2
18
Operating Temperature -65 to 95degC
Passive Speed Sensors
Dimensions in inches and (mm)
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-403 1500 (3810)
70085-1010-405 2750
70085-1010-415 4000 (10160)70085-1010-416 6000 (15240)
Performance Curves
SpecificationsOutput Voltage (Standard) 90 V (P-P)Output Voltage (Guarantee Point) 94 V (P-P)DC Resistance 660 ohms maxTypical Inductance 210 mH maxOutput Polarity White lead positiveOperating Temperature -55 to +220deg CMounting Thread -0405 34 - 20 UNEF-2ACable Length 15 ft (457 m)Net Weight 16 oz max
Ordering Part Thread Length (A)70085-1010-404 1500 (3810)
70085-1010-406 2750 (6985)70085-1010-417 4000 (10160)70085-1010-420 6000 (15240)
SpecificationsOutput Voltage (Standard) 60V (P-P)Output Voltage (Guarantee Point) 134V (P-P)DC Resistance 210 ohms maxTypical Inductance 75 mH maxOutput Polarity White lead positiveOperating Temperature -20 to +220degCCable Length 15 ft (457m)Net Weight 16 oz max
Performance Curves
Based on 20 DP Gear
Based on 8 DP Gear
THREAD SIZE
FM ATEX Sensors
THREAD SIZE(6985)
58-18 UNF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
2750 (6985) 4000 (10160) 6000 (15240)
58-18 UNF-2A70085-1010-544 1875 (4763)
70085-1010-541 1875 (4763) 34-20 UNEF-2A70085-1010-542 34-20 UNEF-2A70085-1010-540 34-20 UNEF-2A70085-1010-543 34-20 UNEF-2A
34-20 UNEF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
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Thread Size (B)
Thread Size (B)
19
FM ATEX Sensors
Passive Speed Sensors LISTED PRODUCT
Performance Curves
Based on 8 DP Gear
IEC EX Sensors
Rating ATEX and IEC Ex Equip Group II Category 2G Gas Group IIC Zone 1Sensor must be used with MTL 7764ac intrinsic barrierUser must install sensor in such a manner as to limit the output voltage to lessthan 12V Pk-Pk and a total energy of less than 26 microjoules
Available in a range of inch and metric thread lengths and sizes and cable lengths of 3 or 10 meters Consult factory for additional details
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Ordering Part Thread Length (A) Thread Size (B) Cable Length (C) Conduit Thread
70085-3030-111 1500 (3810) 58-18 UNF-2A 3 m 12 NPT70085-3030-112 2750 (6885) 58-18 UNF-2A 3 m 12 NPT70085-3030-113 4000 (1016) 58-18 UNF-2A 3 m 12 NPT70085-3030-114 6000 (1524) 58-18 UNF-2A 3 m 12 NPT70085-3030-211 1500 (3810) 58-18 UNF-2A 12 NPT70085-3030-212 2750 (6885) 58-18 UNF-2A 12 NPT70085-3030-213 4000 (1016) 58-18 UNF-2A 12 NPT70085-3030-214 6000 (1524) 58-18 UNF-2A 12 NPT70085-3030-222 2750 (6885) 12 NPT70085-3030-235 1575 (4000) M16 x 15 6g 10 m G 1270085-3030-237 3937 (1000) M16 x 15 6g 10 m G 12
THREAD SIZE
20
10 m10 m10 m10 m10 m34-20 UNEF-2A
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Net Weight 14 oz maxOperating Temperature -65 to 95degC
The defined SIL capability is based on the end users safety system architecture and defined diagnostics as outlined in IEC 61508 and IEC 61511 for sensors Single channel devise is insufficient to determine zero speed as part ofthe safety function Consult the factory for additional details (Pages 18-20)
KEY FEATURESCapable of up to a SIL 3 Rating PFH 610 E-09 1h
PFD AVG (T1=20 Years) 535 E-04 DC 90 SFF 91
ApplicationUsed for Speed Take Off
The Side Look Sensor (SLS) has been developed byAI-Tek Instruments for Allison automatic transmis-sions for trucks ranging from light duty vans to over-the-road tractors It is available for Allison AT MTand HT transmissions The new SLS improves onearlier designs developed for Allison to replace amechanical speed system
The SLS is a variable reluctance device that pro-vides electronic transmission speed inputs toengine control systems andor electronic dash-boards It mounts directly on the transmission andemploys a unique magnet configuration thatinduces a magnetic field on the side of the sensorin the path of the rotating transmission gear Thissystem with its fewer mounting parts improvesreliability reduces weight and conserves spaceover the earlier designs
AI-Tek Instruments LLCSide Look Sensor
The new SLS uses a molded glass filled nylon bodyto protect the sensor in harsh truck-operatingenvironments It replaces the old fly-lead designwith an integral standard Packard connectorwhich eliminates the added extra connector cost ofthe old design It is available in single and dualoutput versions
The SLS is manufactured in the United StatesAI-Tek Instruments Distributors stock the SLS foroff-the-shelf maintenance repair and overhaul(MRO) requirements
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188
CONNECTOR MATES WITHPACKARD 12162188
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Specifications
PN 70082-1000-021 AT MT
PN 70082-1000-022 AT MT
PN 70082-1000-023 HT
PN 70082-1000-024 HT
Applications
22
Hall Effect Sensors
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for engine timing applications and has developed a line of durable products for
industrial use
With multiple standard variations we offer the widest range of standard catalog
sensors to meet your various design needs The design is flexible to easily meet all
of your application requirements
The Hall Effect sensor can sense each change in target movement regardless of speed
from near zero to 15 kHz frequency range generating a steady pulse train of frequency
proportional to target speed Typically each time a gear tooth (or any ferrous discontinuity)
passes in front of the sensor the output changes state This type of sensor is known as a P
type because it uses N-P-N transistor logic (as opposed to N type which uses P-N-P
transistor logic)
Key features to note are
bull Reverse voltage protection to prevent damage if miswired
bull Extended temperature range
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
AI-Tek has (3) Series of Hall Effect Sensors RH Series DH Series and BH Series
Below is a quick reference chart of the features of each of the series
It is the customers responsibility to determine whether the product is proper for customers use and application
PERFORMANCE RH SERIES DH SERIES BH SERIES1 Output Channel 1 Output Channel 2 Output Channels
+ Direction
Zero speed to 15kHz operation X X X
Standard gear tooth sensing X X X
Fine 32 DP Capability X X
Single tooth valley target X X
No installation alignment X
Extended airgap
(0100rdquo+ for 12DP and coarser targets) X X
General noise immunity X X X
EMI Hardened X X
High tolerance to target run-out X X
Self-calibrating X X
Direction Sensing X
Lowest cost X
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Distance Amplifier)For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
34-20 DH1612-113 TTL Cable 15 3375
34-20 DH1622-113 ST Cable 15 3375
34-20 RH1612-013 TTL Cable 15 3375
34-20 RH1622-013 ST Cable 15 3375
34-20 DH1612-114 TTL Cable 275 4625
34-20 DH1622-114 ST Cable 275 462534-20 RH1612-014 TTL Cable 275 4625
34-20 RH1622-014 ST Cable 275 462534-20 DH1612-105 TTL Connector 15 3375
34-20 DH1622-105 ST Connector 15 3375
34-20 RH1612-005 TTL Connector 15 3375
34-20 RH1622-005 ST Connector 15 3375
34-20 DH1612-106 TTL Connector 275 4625
34-20 DH1622-106 ST Connector 275 4625
34-20 RH1612-006 TTL Connector 275 4625
34-20 RH1622-006 ST Connector 275 4625
34-20 DH1612-107 TTL Connector 4 6512
34-20 DH1622-107 ST Connector 4 6512
34-20 RH1612-007 TTL Connector 4 6512
34-20 RH1622-007 ST Connector 4 6512
34-20 DH1612-109 TTL Wires 15 3375
34-20 DH1622-109 ST Wires 15 3375
34-20 RH1612-009 TTL Wires 15 3375
34-20 RH1622-009 ST Wires 15 3375
34-20 DH1612-110 TTL Wires 275 4625
34-20 DH1622-110 ST Wires 275 4625
34-20 RH1612-010 TTL Wires 275 4625
34-20 RH1622-010 ST Wires 275 4625
34-20 RH1612-025 TTL Cable 1375 475 X
34-20 RH1612-026 TTL Cable 15 3375 X
34-20 RH1622-026 ST Cable 15 3375 X
34-20 RH1612-027 TTL Cable 275 4625 X
34-20 RH1622-027 ST Cable 275 4625 X
Active Sensor Selection Guide
RH amp DH Series
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Active Sensor Selection Guide
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
58-18 DH1512-113 TTL Cable 15 3375
58-18 DH1522-113 ST Cable 15 3375
58-18 RH1512-013 TTL Cable 15 3375
58-18 RH1522-013 ST Cable 15 3375
58-18 DH1512-114 TTL Cable 275 4625
58-18 DH1522-114 ST Cable 275 4625
58-18 RH1512-014 TTL Cable 275 4625
58-18 RH1522-014 ST Cable 275 4625
58-18 DH1512-105 TTL Connector 15 3375
58-18 DH1522-105 ST Connector 15 3375
58-18 RH1512-005 TTL Connector 15 3375
58-18 RH1522-005 ST Connector 15 3375
58-18 DH1512-106 TTL Connector 275 4625
58-18 DH1522-106 ST Connector 275 4625
58-18 RH1512-006 TTL Connector 275 4625
58-18 RH1522-006 ST Connector 275 4625
58-18 DH1512-107 TTL Connector 4 6512
58-18 DH1522-107 ST Connector 4 6512
58-18 RH1512-007 TTL Connector 4 6512
58-18 RH1522-007 ST Connector 4 6512
58-18 DH1512-109 TTL Cable 15 3375
58-18 DH1522-109 ST Cable 15 3375
58-18 RH1512-009 TTL Cable 15 3375
58-18 RH1522-009 ST Cable 15 3375
58-18 DH1512-110 TTL Cable 275 4625
58-18 DH1522-110 ST Cable 275 4625
58-18 RH1512-010 TTL Cable 275 4625
58-18 RH1522-010 ST Cable 275 4625
58-18 RH1512-026 TTL Cable 15 3375 X
58-18 RH1522-026 ST Cable 15 3375 X
58-18 RH1512-027 TTL Cable 275 4625 X
58-18 RH1522-027 ST Cable 275 4625 X
58-18 DH1512-210 ST Cable 275 275
58-18 DH1522-210 ST Cable 275 275
38-32 RH1320-001 ST Wires 163 163
38-32 RH1320-003 ST Cable 163 163
38-24 RH1320-009 ST Wires 163 163
38-24 RH1320-010 ST Cable 163 163
38-24 RH1320-012 ST Cable 3 3
38 Dia RH1320-005 ST Wires
38 Dia RH1320-006 ST Cable
NOTE RTD Temperature Sensing Feature
_ _
_ _
RH amp DH Series
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Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +46 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage
-30 Vdc
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap005 to 020 with a 24 diametral pitch gear005 to 030 with a 20 diametral pitch gear005 to 050 with a 12 diametral pitch gear005 to 075 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B 5NaCl for 48 hrs No visible corrosion
Humidity92 RH 40degC for 90 hrsNo visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 20 Irradiated cross-linked polyolefin
125degC
Rotational alignment of sensing face is notrequired for optimum output signal
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Note Either output will work with any AI-Tek Tachometer
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RH Series
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INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
RH1512-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-014 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-014 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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RH Series
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
RH1512-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1522-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1512-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
RH1522-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1512-007 625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1522-007 625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
RH1612-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1622-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1612-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
RH1622-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1612-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1622-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) Supply Tracking
Net Weight 7 oz max
Fully Threaded with Leads
Part Num Thread A Dimension Lead Length Output
RH1512-009 625-18 UNF-2A 1500 (38100) 12(304) TTL Compatible
RH1522-009 625-18 UNF-2A 1500 (38100) 12(304) Supply Tracking
RH1512-010 625-18 UNF-2A 2750 (69850) 12(304) TTL Compatible
RH1522-010 625-18 UNF-2A 2750 (69850) 12(304) Supply Tracking
RH1612-009 750-20 UNEF-2A 1500 (38100) 12(304) TTL Compatible
RH1622-009 750-20 UNEF-2A 1500 (38100) 12(304) Supply Tracking
RH1612-010 750-20 UNEF-2A 2750 (69850) 12(304) TTL Compatible
RH1622-010 750-20 UNEF-2A 2750 (69850) 12(304) Supply Tracking
Net Weight 3 oz max Dimensions in inches and (mm)
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
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Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
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DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
38
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
40
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
44
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
46
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
50
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 2: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/2.jpg)
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Speed Sensors
Al-Tek Instruments manufactures hundreds of different designs of speed sensors This catalog
lists the standard units we developed based on years of design experience and knowledge to
provide you readily available products to solve your sensor solution to your speed control or
indication needs Many of the hundreds of Al-Tek speed sensors we produce are designed for
special applications which allows us to offer a highly versatile and flexible product line
Designed to meet severe industrial automotive and aerospace environments Al-Tek speed
sensors will provide reliable around-the-clock operation for many years under adverse conditions
Our design engineers have paid particular attention to trouble areas such as vibration shock
extreme temperatures wet oily and corrosive atmospheres Many of our speed sensors are
specifically designed for high temperature high or low speeds various targets or for precise
accuracy and timing applications Al-Tek uses primarily the two technologies of variable reluctance
and Hall effect to convert motion into an electronic signal By selecting the best technology for a
specific application we can assure years of reliable performance
This catalog offers a variety of options readily available through our distributors If you cannot
find a catalog item to meet your specific requirements please contact your area distributor with your
specifics there is probably an existing design which comes close to your requirements As a world
leader in producing quality speed sensors Al-Tek Instruments will provide a superb priceperfor-
mance ratio
Passive Magnetic Sensors
Control and protection circuits have relied on variable reluctance technology for years With few
components and no moving parts the passive magnetic speed sensors can provide a signal from
the inside of an aircraft engine at temperatures approaching 425degC or from the hub of an automobile
wheel at high shock and vibration The advantages of these sensors are
bull High reliability
bull Simple installation
bull Long life due to no moving parts or contacts
bull Self powered operation
bull Wide variety of shapes and sizes
bull Easy alignment
bull Can be designed for almost any environment
Due to their flexibility you will find Al-Tek variable reluctance sensors in everything from low-cost
consumer products to highly-accurate automotive engine ignition systems to flight-worthy aircraft
engine controls
It is the customerrsquos responsibility to determine whether the product is proper for customerrsquos use and application
The information contained herein is subject to change without notice Refer to the factory for verification of any details
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Passive Sensor Selection Guide
Thread SizePart
Number
Output Guarentee
Voltage(P-P)
TerminationThreadLength
(in)
SensorLength
(in)Agency
ApprovalTemp Rating
(deg C) Page34-20 70085-1010-405 94 Cable 275 4 X -55 to 22034-20 70085-1010-413 134 Wires 15 275 X -65 to 9534-20 70085-1010-005 134 Wires 1875 3125 X -65 to 9534-20 70085-1010-541 134 Cable 188 313 X -20 to 22034-20 70085-1010-542 134 Cable 275 4 X -20 to 22034-20 70085-1010-327 134 Wires 275 4 X -65 to 9534-20 70085-1010-540 134 Cable 4 525 X -20 to 22034-20 70085-1010-328 134 Wires 4 525 X -65 to 9534-20 70085-1010-543 134 Cable 6 725 X -20 to 22034-20 70085-1010-414 134 Wires 6 725 X -65 to 9534-20 70085-3030-222 134 Cable 275 4 X -65 to 95
M16 x 15 70085-1010-425 49 Connector 3 4125 -55 to 107M16 x 15 70085-3030-235 134 Cable 15 275 X -65 to 95M16 x 15 70085-3030-237 134 Cable 15 275 X -65 to 95
58-18 70084-1713-111 134 Connector 1125 25 -40 to 15058-18 70085-1010-001 34 Connector 1125 225 -55 to 10758-18 70085-1010-003 34 Connector 2625 375 -55 to 10758-18 70085-1010-018 34 Connector 3625 475 -55 to 10758-18 70085-1010-118 34 Connector 5 6125 -55 to 10758-18 70085-1010-002 129 Connector 1125 225 -55 to 10758-18 70085-1010-175 129 Connector 2625 375 -55 to 10758-18 70085-1010-026 129 Connector 3625 475 -55 to 10758-18 70085-1010-408 129 Connector 5 6125 -55 to 10758-18 70085-1010-028 215 Connector 1437 253 -70 to 10758-18 70085-1010-004 43 Wires 1125 2125 -70 to 10758-18 70085-1010-469 43 Wires 2750 375 -70 to 10758-18 70085-1010-131 151 Cable 1687 1687 -55 to 10758-18 70085-1010-214 151 Cable 2937 2937 -55 to 10758-18 70085-1010-078 34 Wires 1812 1812 -55 to 10758-18 70085-1010-137 34 Wires 2937 2937 -55 to 10758-18 70085-1010-220 128 Wires 2937 2937 -55 to 10758-18 70085-1010-421 49 Connector 2475 36 -55 to 10758-18 70085-1010-424 49 Connector 4493 5618 -55 to 10758-18 70085-1010-081 134 Wires 15 275 X -65 to 9558-18 70085-1010-544 134 Cable 188 313 X -20 to 22058-18 70085-1010-411 134 Wires 1875 3125 X -65 to 9558-18 70085-1010-329 134 Wires 275 4 X -65 to 9558-18 70085-1010-330 134 Wires 4 525 X -65 to 9558-18 70085-1010-412 134 Wires 6 725 X -65 to 9558-18 70085-1010-404 134 Cable 15 275 X -20 to 22058-18 70085-1010-406 134 Cable 275 4 X -20 to 22058-18 70085-1010-417 134 Cable 4 525 X -20 to 22058-18 70085-1010-420 134 Cable 6 725 X -20 to 22058-18 70085-1010-403 94 Cable 15 275 X -55 to 22058-18 70085-1010-415 94 Cable 4 525 X -55 to 22058-18 70085-1010-416 94 Cable 6 725 X -55 to 22058-18 70085-3030-111 134 Cable 15 275 X -65 to 9558-18 70085-3030-112 134 Cable 275 4 X -65 to 9558-18 70085-3030-113 134 Cable 4 525 X -65 to 9558-18 70085-3030-114 134 Cable 6 725 X -65 to 9558-18 70085-3030-211 94 Cable 15 275 X -65 to 9558-18 70085-3030-212 134 Cable 275 4 X -65 to 9558-18 70085-3030-213 94 Cable 4 525 X -65 to 9558-18 70085-3030-214 94 Cable 6 725 X -65 to 95
4
58-18 70085-8080-003 128 Wires 1812 1812 -55 to 107
Output is based on 030 air gap at 500 IPS
19181819191819181918201220201188888888999
1010101011
1212
18191818181819191919191919202020202020202011
Passive Sensor Selection Guide
Thread Size
Part
Number
Output
Guarentee
Voltage
(P-P)
Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval
Temp Rating
(deg C) Page
38-24 70085-1010-007 16 Wires 0812 1252 -55 to 107
38-24 70085-1010-056 16 Wires 3625 4065 -55 to 107
38-24 70085-1010-086 36 Wires 0812 1252 -55 to 107
38-24 70085-1010-355 36 Wires 0812 1252 -55 to 107
38-24 70085-1010-041 2 Wires 0812 1252 -73 to 232
38-24 70085-1010-428 2 Wires 15 194 -73 to 232
38-24 70085-1010-458 2 Wires 3625 4065 -73 to 232
38-24 70085-1010-174 36 Wires 0812 1252 -65 to220
38-24 70085-8080-001 42 Wires 15 15 -55 to 107
375 no thd 70085-1010-314 42 Cable 1375 1375 -30 to 85
375 no thd 70085-8080-004 42 Cable 25 25 -30 to 85
14-40 70085-1010-024 04 Wires 0687 1 -73 to 232
14-40 70085-1010-472 04 Wires 0687 1187 -73 to 232
14-40 70085-1010-227 04 Wires 1687 2 -73 to 232
10-32 70085-1010-037 06 Wires 05 05 -55 to 107
10-32 70085-1010-299 06 Wires 125 125 -55 to 107
10-32 70085-1010-182 03 Wires 05 05 -73 to 232
1032 70085-1010-289 03 Wires 125 125 -73 to 232
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131313131414141415151516161617171717
Output is based on 030 air gap at 500 IPS
Magnetic Sensor Selection
The following information is supplied for assistance in selecting the proper sensors for your
particular applications One of the fundamental questions to be answered is ldquoWill there be enough
sensor output voltage at the lowest operating speedrdquo
The sensor output voltage depends on
bull Surface Speed - speed target passes pole piece
bull Gap - distance between target and pole piece
bull Target Size - geometric relationship of pole piece and target
bull Load Impedance - connected to sensor
The surface speed of a gear depends upon its diameter and RPM Surface speed is expressed in
terms of inches per second (IPS)
Surface Speed (IPS) = RPM x Outside Dia (in) x π60
There is an optimum pitch (or tooth size) to
obtain the highest possible output from a sensor
but this is seldom necessary Figure 4 illustrates
the relationship of tooth size and spacing for
optimum magnetic sensor output Using a fine
tooth gear relative to a large pole piece diameter
sensor results in a lower generated voltage
because the flux also passes into adjacent teeth
resulting in a lower total flux variation
The relationship between pole piece diameter and
gear pitch and its effect on the output of a sensor
is described in Table A
Table A Relative Output Vs Gear Pitch
The load impedance with relation to the internal impedance of the sensor dictates the amount
of sensor output voltage that will be seen by that load Magnetic sensors are designed with the
lowest practical impedance consistent with providing maximum output The load impedance should
be high in relation to the impedance of the sensor to minimize the voltage drop across the coil and
to deliver the maximum output to the load
Most of the output voltages listed in this catalog are based on a load impedance of 100k ohms
To use a generality the load impedance should be 10 times that of the sensor
In order to assist you in selecting your sensor Al-Tek Instruments has developed an output vs
speed curve for each sensor family By looking at the application extremes of highest speedlowest
gap and lowest speedhighest gap the full variation of sensor output can easily be determined We
also specify each family in two ways Standard - minimum output voltage at 1000 IPS 0005 in
gap Guarantee Point - minimum output voltage at 500 IPS 0030 in gap Sensors with 187rdquo dia
pole piece are tested with an 8 DP gear 100k ohms load 106rdquo dia amp smaller pole piece sensors
are tested with a 20 DP gear 100k ohms load Sensors with connectors also use a 250 pf capaci-
tor shunted across the load
Figure 4 Sensor output as a functionof gear tooth size
Pole Piece Gear PitchDia (in) 8 12 16 20 24 32 48
187 100 083 033 016 mdash mdash mdash
106 141 141 127 100 070 028 007
093 125 125 125 100 075 037 012
062 095 107 100 100 092 090 036
040 100 100 100 100 100 090 060
1 Dimension of tooth 4 Pole piece diametertop surface
2 Tooth height 5 Air gap
3 Space between teeth 6 Gear face width
For maximum control and approximately sinusoidalwaveform the following conditions should be obtained
(1) equal to or slightly less than (4)
(2) equal to or more than (3)
(3) approximately 15 to 3 times (4)
(5) as small as possible 005rdquo minimum
(6) equal to or more than (4)
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Calculation of Output Voltage
Selection of the proper Al-Tek magnetic sensor may require the calculation of sensor output volt-age to assure proper operation in your specific application To assist in this area let us consider thefollowing typical application Requirement is speed display with overspeed and underspeed control aswell as 4-20 mA signal to a PLC Speed range is 0-3600 RPM with low speed set point at 300 RPMavailable shaft diameter for mounting a gear is 2000 in and a 030 in air gap is ideal
You have selected a Tachtrol 30 PN T77630-10 with a 60T steel split gear PN G79870-202-1901 andyou are considering to use sensor PN 70085-1010-001 The question is if the sensor has enoughoutput voltage at 300 RPM
We can list the following parameters
a Tachtrol 30 Load impedance - 12k-ohmsSensitivity - 200 mV peak
b Split gear Outside dia - 5166 in DP - 12No of Teeth - 60
c SensorStandard output voltage - 40V (P-P) minGuarantee Point - 34V P-P minDC Resistance - 130 ohms maxTypical inductance - 33 mH ref
Step 1 Calculate surface speed of gearSS = RPM x Outside Dia x π = 300 x 5166 x 314 SS = 81 IPS
60 60
Step 2 Determine Peak-to-Peak output voltageReferring to the performance curves of sensor PN 70085-1010-001 the min output voltageis approx03 V (P-P) at 81 IPS and 0030 in gap It is a fact that output voltage vs surfacespeed is a near linear function therefore another method of determining output voltage isto set up a ratio using the guarantee point
34V (P-P) = E E = 55V (P-P)500 IPS 81
Step 3 Correction for pitchFor a 0106 in pole piece dia and a 12 DP gear the correction factor from Table A is 1 41(See pg 5)
Ec= 55 x 141 = 78 V (P-P)
Step 4 Converting to peak voltage Simply divide by 2 Ec = 78 divide 2 = 39V peak
Step 5 Correction for loadThe 39V or 390mV sensor output voltage will be divided across the impedance of the loadand sensor The load impedance is 12000 ohms resistive The impedance of the sensor hasa resistive and inductive element At low frequencies the inductive element is very small andcan therefore be disregarded leaving the max DC resistance of 130 ohms for consideration
The load correction factor (fL) can be expressed as(fL) = Z (load) = 12000 = 99
Z (load) + Z (sensor) 12130
Ec = 99 x 390 = 386 mV peak
The final adjusted value is 386 mV peak
As stated earlier the sensitivity or threshold of the Tachtrol 30 is 200mV peak at the stated conditions the selection of PN 70085-1010-001 is acceptable
By setting up ratios you can determine that the minimum sensed speed is 155 RPM
If the final value of Ec had been slightly less than 200 mV a reduction of the air gap (from 030rdquo
to 025rdquo) would boost the output above 200 mV
If it should be determined that the required sensor cannot be selected from the catalog modelsthe best procedure is to compile a list of all your requirements and contact your area distributor toassist you in the selection of the correct sensor
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-001 1125 (2857)70085-1010-003 2625 (6667)70085-1010-018 3625 (9207)70085-1010-118 5000 (12700)(Select cable from group ldquoArdquo see index)
SpecificationsOutput Voltage (Standard) 40 V (P-P)Output Voltage (Guarantee Point) 34 V (P-P)DC Resistance 130 ohms maxTypical Inductance 33 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -55 to +107degCNet Weight 5 oz max
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-002 1125 (2857)70085-1010-175 2625 (6667)70085-1010-026 3625 (9207)70085-1010-408 5000 (12700)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 150 V (P-P)Output Voltage (Guarantee Point)129 V (P-P)DC Resistance 1500 ohms maxTypical Inductance 360 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -55 to +107degCNet Weight 5 oz max
Performance Curves
General Purpose
High Sensitivity
Based on 20 DP Gear
Based on 20 DP Gear
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Passive Speed Sensors
Dimensions in inches and (mm)
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-004 1125 (2857)70085-1010-469 2750 (6985)
Performance Curves
SpecificationsOutput Voltage (Standard) 43 V (P-P)Output Voltage (Guarantee Point) 43 V (P-P)DC Resistance 130 ohms maxTypical Inductance 32-46 mH refOutput Polarity Red lead positiveOperating Temperature -73 to +107degCLead length 10 ft (305 m)Net Weight 16 oz max
Ordering Part Thread Length (A)70085-1010-028 1437 (3650)(Select cable from group ldquoArdquo see index)
Power Output
Performance Curves
SpecificationsOutput Voltage (Standard) 75 V (P-P)Output Voltage (Guarantee Point) 215 V (P-P)DC Resistance 210 ohms maxTypical Inductance 50 to 95 mH refOutput Polarity Pin B positiveOperating Temperature -73 to +107deg CNet Weight 22 oz max
Conduit Fitting ndash General Purpose
Based on 8 DP Gear
Based on 20 DP Gear
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-07870085-1010-137
Performance Curves
SpecificationsOutput Voltage (Standard) 40 V (P-P)Output Voltage (Guarantee Point) 34 V (P-P)DC Resistance 130 ohms maxTypical Inductance 33 mH refOutput Polarity white lead positiveOperating Temperature -55 to +107degCLead Length -078 12 in (305 cm)
-137 24 in (609 cm)Net Weight 3 oz max
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-13170085-1010-214
SpecificationsOutput Voltage (Standard) 120 V (P-P)Output Voltage (Guarantee Point)151 V (P-P)
Typical Inductance 40-60 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107deg CCable Length 10 ft (305 m)Net Weight 5 oz max
Full Thread ndash Power Output
Performance Curves
Full Thread ndash General Purpose
Based on 8 DP Gear
Based on 20 DP Gear
180 (4572)(7772)
DC Resistance 250 ohms max
180306
(4572)(7772)
306
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Passive Speed Sensors
Dimensions in inches and (mm)
Full Thread ndash High Sensitivity
Ordering Part Thread Length (A)70085-8080-00370085-1010-220
Performance Curves
Molded ndash High Sensitivity
Ordering Part Thread Length (A)70084-1713-111 1125 (2857)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 190 V (P-P)Output Voltage (Guarantee Point) 139 V (P-P)DC Resistance 1200 ohms maxTypical Inductance 400 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -40 to +150deg CNet Weight 2 oz max
SpecificationsOutput Voltage (Standard) 150 V (P-P)Output Voltage (Guarantee Point) 128 V (P-P)
Typical Inductance 500 mH refOutput Polarity White lead positiveOperating Temperature -55 to + 107degCLead Length -003 12 in (305 cm)
-220 36 in (914 cm)Net Weight 3 oz max
6251588
58 ndash 18 FAMILY
Based on 20 DP Gear
Based on 20 DP Gear
180306
(4572)(7772)
DC Resistance 1430 ohms max
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Passive Speed Sensors
Molded
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-421 2475 (6287)70085-1010-425 3000 (7620)70085-1010-424 4493 (11412)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 63 V (P-P)Output Voltage (Guarantee Point) 49V (P-P)DC Resistance 250 ohms maxTypical Inductance 63 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -55 to +107deg CNet Weight 5 oz max
M16 x 15 Thd
Dimensions in inches and (mm)
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Passive Speed Sensors
Dimensions in inches and (mm)
General Purpose
Ordering Part Thread Length (A)70085-1010-007 812 (2062)70085-1010-056
Ordering Part Thread Length (A)70085-1010-086 812 (2062)70085-1010-355 812 (2062)
Performance Curves
High Sensitivity
38 ndash 24 FAMILY
SpecificationsOutput Voltage (Standard) 21 V (P-P)Output Voltage (Guarantee Point) 16 V (P-P)
Typical Inductance 22 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 6 in (152 cm)Net Weight 2 oz max
SpecificationsOutput Voltage (Standard) 55 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length -086 18 in (457 cm)Cable Length -355 40 in (1016 cm)Net Weight 2 oz max
Performance Curves
Based on 20 DP Gear
Based on 20 DP Gear
3625 (9208)
DC Resistance 125 ohms max
DC Resistance 960 ohms maxOutput Voltage (Guarantee Point) 42V (P-P)
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Passive Speed Sensors
Dimensions in inches and (mm)
38 ndash 24 FAMILY
General Purpose ndash High Temperature
Ordering Part Thread Length (A)70085-1010-041 812 (2062)70085-1010-428 1500 (3810)70085-1010-458
Performance Curves
SpecificationsOutput Voltage (Standard) 24 V (P-P)Output Voltage (Guarantee Point) 20 V (P-P)
Typical Inductance 21 mH refOutput Polarity White lead positiveOperating Temperature -73 to +232degCLead Length 40 in (1 m)Net Weight 2 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Ordering Part Thread Length (A)70085-1010-174 812 (2062)
Performance Curves
High Sensitivity - High Temperature
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 36V (P-P)
Output Polarity White lead positiveOperating Temperature -65 to +220degCCable Length 60 in (15 m)Net Weight 2 oz max
3625 (9208)
DC Resistance 125 ohms max
DC Resistance 705 ohms maxTypical Inductance 150 mH ref
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)
70085-8080-001 1500 (3810)
Full Thread ndash High Sensitivity
Smooth Body ndash High Sensitivity
Ordering Part 70085-1010-314 1375 (3493)70085-8080-004 2500 (6350)
Performance Curves
Performance Curves
38 ndash 24 FAMILY
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -55 to + 107degCLead Length 6 in (152cm)Net Weight 1 oz max
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -30 to +85degCLead Length -004 6 in (152cm)Cable Length -314 10ft (305m)Net Weight 3 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Length (A)
70085-1010-120 1250 (3175)
DC Resistance 960 ohms max
DC Resistance 960 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)
Performance Curves
Ordering Part Thread Length (A) (B)70085-1010-024 687 (1745) 313 (795)70085-1010-472 687 (1745) 500 (1270)70085-1010-227 1687 (4285) 313 (795)
SpecificationsOutput Voltage (Standard) 47 V (P-P)Output Voltage (Guarantee Point) 04 V (P-P)DC Resistance 125 ohms maxTypical Inductance 5-12 mH refOutput Polarity White lead positiveOperating Temperature -73 to 232degCLead Length 8 in (203 cm)Cable Length -472 60 in (15 m)Net Weight 2 oz max
B as ed on 20 DP G ear
and cable for extra protection Extra locknut provided
General Purpose - High Temperature
14 - 40 FAMILY
Egress is a 2-conductor AWG 26 shielded Teflon cable with 3 long shrink tubing over housing
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-037 500 (1270)70085-1010-299 1250 (3175)
Performance Curves
General Purpose ndash High Temperature
SpecificationsOutput Voltage (Standard) 13 V (P-P)Output Voltage (Guarantee Point) 6 V (P-P)DC Resistance 190 ohms maxTypical Inductance 10 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 18 in (457 cm)Net Weight 1 oz max
10 - 32 FAMILY
High Sensitivity
Ordering Part Thread Length (A)70085-1010-182 500 (1270)70085-1010-289 1250 (3175)
Performance Curves
SpecificationsOutput Voltage (Standard) 6 V (P-P)Output Voltage (Guarantee Point) 3 V (P-P)
Typical Inductance 2 mH refOutput Polarity White lead positiveOperating Temperature -73 to +150degCLead Length 18 in (457 cm)Net Weight 1 oz max
Based on 20 DP Gear
Based on 20 DP Gear
DC Resistance 50 ohms max
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17
Passive Speed Sensors
Dimensions in inches and (mm)Based on 8 DP Gear
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-413 1500 (3810)70085-1010-005 1875 (4763)70085-1010-327 2750 (6985)70085-1010-328 4000 (10160)70085-1010-414 6000 (15240)
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positiveOperating Temperature -65 to +95degCLead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1Groups E F G Temp Code T3C
Ordering Part Thread Length (A)70085-1010-081 1500 (3810)70085-1010-411 1875 (4763)70085-1010-329 2750 (6985)70085-1010-330 4000 (10160)70085-1010-412 6000 (15240)
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Lead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Based on 8 DP Gear
Groups E F G Temp Code T3C
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ULATEXCSA Sensors The products on pgs 18-20 are capable of up to a SIL 3 rating
ULATEXCSA Sensors
ATEX Group II Category 3G Zone 2
ATEX Group II Category 3G Zone 2
18
Operating Temperature -65 to 95degC
Passive Speed Sensors
Dimensions in inches and (mm)
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-403 1500 (3810)
70085-1010-405 2750
70085-1010-415 4000 (10160)70085-1010-416 6000 (15240)
Performance Curves
SpecificationsOutput Voltage (Standard) 90 V (P-P)Output Voltage (Guarantee Point) 94 V (P-P)DC Resistance 660 ohms maxTypical Inductance 210 mH maxOutput Polarity White lead positiveOperating Temperature -55 to +220deg CMounting Thread -0405 34 - 20 UNEF-2ACable Length 15 ft (457 m)Net Weight 16 oz max
Ordering Part Thread Length (A)70085-1010-404 1500 (3810)
70085-1010-406 2750 (6985)70085-1010-417 4000 (10160)70085-1010-420 6000 (15240)
SpecificationsOutput Voltage (Standard) 60V (P-P)Output Voltage (Guarantee Point) 134V (P-P)DC Resistance 210 ohms maxTypical Inductance 75 mH maxOutput Polarity White lead positiveOperating Temperature -20 to +220degCCable Length 15 ft (457m)Net Weight 16 oz max
Performance Curves
Based on 20 DP Gear
Based on 8 DP Gear
THREAD SIZE
FM ATEX Sensors
THREAD SIZE(6985)
58-18 UNF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
2750 (6985) 4000 (10160) 6000 (15240)
58-18 UNF-2A70085-1010-544 1875 (4763)
70085-1010-541 1875 (4763) 34-20 UNEF-2A70085-1010-542 34-20 UNEF-2A70085-1010-540 34-20 UNEF-2A70085-1010-543 34-20 UNEF-2A
34-20 UNEF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
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Thread Size (B)
Thread Size (B)
19
FM ATEX Sensors
Passive Speed Sensors LISTED PRODUCT
Performance Curves
Based on 8 DP Gear
IEC EX Sensors
Rating ATEX and IEC Ex Equip Group II Category 2G Gas Group IIC Zone 1Sensor must be used with MTL 7764ac intrinsic barrierUser must install sensor in such a manner as to limit the output voltage to lessthan 12V Pk-Pk and a total energy of less than 26 microjoules
Available in a range of inch and metric thread lengths and sizes and cable lengths of 3 or 10 meters Consult factory for additional details
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Ordering Part Thread Length (A) Thread Size (B) Cable Length (C) Conduit Thread
70085-3030-111 1500 (3810) 58-18 UNF-2A 3 m 12 NPT70085-3030-112 2750 (6885) 58-18 UNF-2A 3 m 12 NPT70085-3030-113 4000 (1016) 58-18 UNF-2A 3 m 12 NPT70085-3030-114 6000 (1524) 58-18 UNF-2A 3 m 12 NPT70085-3030-211 1500 (3810) 58-18 UNF-2A 12 NPT70085-3030-212 2750 (6885) 58-18 UNF-2A 12 NPT70085-3030-213 4000 (1016) 58-18 UNF-2A 12 NPT70085-3030-214 6000 (1524) 58-18 UNF-2A 12 NPT70085-3030-222 2750 (6885) 12 NPT70085-3030-235 1575 (4000) M16 x 15 6g 10 m G 1270085-3030-237 3937 (1000) M16 x 15 6g 10 m G 12
THREAD SIZE
20
10 m10 m10 m10 m10 m34-20 UNEF-2A
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Net Weight 14 oz maxOperating Temperature -65 to 95degC
The defined SIL capability is based on the end users safety system architecture and defined diagnostics as outlined in IEC 61508 and IEC 61511 for sensors Single channel devise is insufficient to determine zero speed as part ofthe safety function Consult the factory for additional details (Pages 18-20)
KEY FEATURESCapable of up to a SIL 3 Rating PFH 610 E-09 1h
PFD AVG (T1=20 Years) 535 E-04 DC 90 SFF 91
ApplicationUsed for Speed Take Off
The Side Look Sensor (SLS) has been developed byAI-Tek Instruments for Allison automatic transmis-sions for trucks ranging from light duty vans to over-the-road tractors It is available for Allison AT MTand HT transmissions The new SLS improves onearlier designs developed for Allison to replace amechanical speed system
The SLS is a variable reluctance device that pro-vides electronic transmission speed inputs toengine control systems andor electronic dash-boards It mounts directly on the transmission andemploys a unique magnet configuration thatinduces a magnetic field on the side of the sensorin the path of the rotating transmission gear Thissystem with its fewer mounting parts improvesreliability reduces weight and conserves spaceover the earlier designs
AI-Tek Instruments LLCSide Look Sensor
The new SLS uses a molded glass filled nylon bodyto protect the sensor in harsh truck-operatingenvironments It replaces the old fly-lead designwith an integral standard Packard connectorwhich eliminates the added extra connector cost ofthe old design It is available in single and dualoutput versions
The SLS is manufactured in the United StatesAI-Tek Instruments Distributors stock the SLS foroff-the-shelf maintenance repair and overhaul(MRO) requirements
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188
CONNECTOR MATES WITHPACKARD 12162188
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Specifications
PN 70082-1000-021 AT MT
PN 70082-1000-022 AT MT
PN 70082-1000-023 HT
PN 70082-1000-024 HT
Applications
22
Hall Effect Sensors
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for engine timing applications and has developed a line of durable products for
industrial use
With multiple standard variations we offer the widest range of standard catalog
sensors to meet your various design needs The design is flexible to easily meet all
of your application requirements
The Hall Effect sensor can sense each change in target movement regardless of speed
from near zero to 15 kHz frequency range generating a steady pulse train of frequency
proportional to target speed Typically each time a gear tooth (or any ferrous discontinuity)
passes in front of the sensor the output changes state This type of sensor is known as a P
type because it uses N-P-N transistor logic (as opposed to N type which uses P-N-P
transistor logic)
Key features to note are
bull Reverse voltage protection to prevent damage if miswired
bull Extended temperature range
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
AI-Tek has (3) Series of Hall Effect Sensors RH Series DH Series and BH Series
Below is a quick reference chart of the features of each of the series
It is the customers responsibility to determine whether the product is proper for customers use and application
PERFORMANCE RH SERIES DH SERIES BH SERIES1 Output Channel 1 Output Channel 2 Output Channels
+ Direction
Zero speed to 15kHz operation X X X
Standard gear tooth sensing X X X
Fine 32 DP Capability X X
Single tooth valley target X X
No installation alignment X
Extended airgap
(0100rdquo+ for 12DP and coarser targets) X X
General noise immunity X X X
EMI Hardened X X
High tolerance to target run-out X X
Self-calibrating X X
Direction Sensing X
Lowest cost X
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Distance Amplifier)For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
34-20 DH1612-113 TTL Cable 15 3375
34-20 DH1622-113 ST Cable 15 3375
34-20 RH1612-013 TTL Cable 15 3375
34-20 RH1622-013 ST Cable 15 3375
34-20 DH1612-114 TTL Cable 275 4625
34-20 DH1622-114 ST Cable 275 462534-20 RH1612-014 TTL Cable 275 4625
34-20 RH1622-014 ST Cable 275 462534-20 DH1612-105 TTL Connector 15 3375
34-20 DH1622-105 ST Connector 15 3375
34-20 RH1612-005 TTL Connector 15 3375
34-20 RH1622-005 ST Connector 15 3375
34-20 DH1612-106 TTL Connector 275 4625
34-20 DH1622-106 ST Connector 275 4625
34-20 RH1612-006 TTL Connector 275 4625
34-20 RH1622-006 ST Connector 275 4625
34-20 DH1612-107 TTL Connector 4 6512
34-20 DH1622-107 ST Connector 4 6512
34-20 RH1612-007 TTL Connector 4 6512
34-20 RH1622-007 ST Connector 4 6512
34-20 DH1612-109 TTL Wires 15 3375
34-20 DH1622-109 ST Wires 15 3375
34-20 RH1612-009 TTL Wires 15 3375
34-20 RH1622-009 ST Wires 15 3375
34-20 DH1612-110 TTL Wires 275 4625
34-20 DH1622-110 ST Wires 275 4625
34-20 RH1612-010 TTL Wires 275 4625
34-20 RH1622-010 ST Wires 275 4625
34-20 RH1612-025 TTL Cable 1375 475 X
34-20 RH1612-026 TTL Cable 15 3375 X
34-20 RH1622-026 ST Cable 15 3375 X
34-20 RH1612-027 TTL Cable 275 4625 X
34-20 RH1622-027 ST Cable 275 4625 X
Active Sensor Selection Guide
RH amp DH Series
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Active Sensor Selection Guide
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
58-18 DH1512-113 TTL Cable 15 3375
58-18 DH1522-113 ST Cable 15 3375
58-18 RH1512-013 TTL Cable 15 3375
58-18 RH1522-013 ST Cable 15 3375
58-18 DH1512-114 TTL Cable 275 4625
58-18 DH1522-114 ST Cable 275 4625
58-18 RH1512-014 TTL Cable 275 4625
58-18 RH1522-014 ST Cable 275 4625
58-18 DH1512-105 TTL Connector 15 3375
58-18 DH1522-105 ST Connector 15 3375
58-18 RH1512-005 TTL Connector 15 3375
58-18 RH1522-005 ST Connector 15 3375
58-18 DH1512-106 TTL Connector 275 4625
58-18 DH1522-106 ST Connector 275 4625
58-18 RH1512-006 TTL Connector 275 4625
58-18 RH1522-006 ST Connector 275 4625
58-18 DH1512-107 TTL Connector 4 6512
58-18 DH1522-107 ST Connector 4 6512
58-18 RH1512-007 TTL Connector 4 6512
58-18 RH1522-007 ST Connector 4 6512
58-18 DH1512-109 TTL Cable 15 3375
58-18 DH1522-109 ST Cable 15 3375
58-18 RH1512-009 TTL Cable 15 3375
58-18 RH1522-009 ST Cable 15 3375
58-18 DH1512-110 TTL Cable 275 4625
58-18 DH1522-110 ST Cable 275 4625
58-18 RH1512-010 TTL Cable 275 4625
58-18 RH1522-010 ST Cable 275 4625
58-18 RH1512-026 TTL Cable 15 3375 X
58-18 RH1522-026 ST Cable 15 3375 X
58-18 RH1512-027 TTL Cable 275 4625 X
58-18 RH1522-027 ST Cable 275 4625 X
58-18 DH1512-210 ST Cable 275 275
58-18 DH1522-210 ST Cable 275 275
38-32 RH1320-001 ST Wires 163 163
38-32 RH1320-003 ST Cable 163 163
38-24 RH1320-009 ST Wires 163 163
38-24 RH1320-010 ST Cable 163 163
38-24 RH1320-012 ST Cable 3 3
38 Dia RH1320-005 ST Wires
38 Dia RH1320-006 ST Cable
NOTE RTD Temperature Sensing Feature
_ _
_ _
RH amp DH Series
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Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +46 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage
-30 Vdc
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap005 to 020 with a 24 diametral pitch gear005 to 030 with a 20 diametral pitch gear005 to 050 with a 12 diametral pitch gear005 to 075 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B 5NaCl for 48 hrs No visible corrosion
Humidity92 RH 40degC for 90 hrsNo visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 20 Irradiated cross-linked polyolefin
125degC
Rotational alignment of sensing face is notrequired for optimum output signal
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Note Either output will work with any AI-Tek Tachometer
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RH Series
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INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
RH1512-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-014 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-014 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
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RH Series
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
RH1512-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1522-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1512-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
RH1522-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1512-007 625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1522-007 625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
RH1612-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1622-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1612-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
RH1622-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1612-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1622-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) Supply Tracking
Net Weight 7 oz max
Fully Threaded with Leads
Part Num Thread A Dimension Lead Length Output
RH1512-009 625-18 UNF-2A 1500 (38100) 12(304) TTL Compatible
RH1522-009 625-18 UNF-2A 1500 (38100) 12(304) Supply Tracking
RH1512-010 625-18 UNF-2A 2750 (69850) 12(304) TTL Compatible
RH1522-010 625-18 UNF-2A 2750 (69850) 12(304) Supply Tracking
RH1612-009 750-20 UNEF-2A 1500 (38100) 12(304) TTL Compatible
RH1622-009 750-20 UNEF-2A 1500 (38100) 12(304) Supply Tracking
RH1612-010 750-20 UNEF-2A 2750 (69850) 12(304) TTL Compatible
RH1622-010 750-20 UNEF-2A 2750 (69850) 12(304) Supply Tracking
Net Weight 3 oz max Dimensions in inches and (mm)
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
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Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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RH Series
1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
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DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
40
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
44
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
46
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
50
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 3: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/3.jpg)
Speed Sensors
Al-Tek Instruments manufactures hundreds of different designs of speed sensors This catalog
lists the standard units we developed based on years of design experience and knowledge to
provide you readily available products to solve your sensor solution to your speed control or
indication needs Many of the hundreds of Al-Tek speed sensors we produce are designed for
special applications which allows us to offer a highly versatile and flexible product line
Designed to meet severe industrial automotive and aerospace environments Al-Tek speed
sensors will provide reliable around-the-clock operation for many years under adverse conditions
Our design engineers have paid particular attention to trouble areas such as vibration shock
extreme temperatures wet oily and corrosive atmospheres Many of our speed sensors are
specifically designed for high temperature high or low speeds various targets or for precise
accuracy and timing applications Al-Tek uses primarily the two technologies of variable reluctance
and Hall effect to convert motion into an electronic signal By selecting the best technology for a
specific application we can assure years of reliable performance
This catalog offers a variety of options readily available through our distributors If you cannot
find a catalog item to meet your specific requirements please contact your area distributor with your
specifics there is probably an existing design which comes close to your requirements As a world
leader in producing quality speed sensors Al-Tek Instruments will provide a superb priceperfor-
mance ratio
Passive Magnetic Sensors
Control and protection circuits have relied on variable reluctance technology for years With few
components and no moving parts the passive magnetic speed sensors can provide a signal from
the inside of an aircraft engine at temperatures approaching 425degC or from the hub of an automobile
wheel at high shock and vibration The advantages of these sensors are
bull High reliability
bull Simple installation
bull Long life due to no moving parts or contacts
bull Self powered operation
bull Wide variety of shapes and sizes
bull Easy alignment
bull Can be designed for almost any environment
Due to their flexibility you will find Al-Tek variable reluctance sensors in everything from low-cost
consumer products to highly-accurate automotive engine ignition systems to flight-worthy aircraft
engine controls
It is the customerrsquos responsibility to determine whether the product is proper for customerrsquos use and application
The information contained herein is subject to change without notice Refer to the factory for verification of any details
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Passive Sensor Selection Guide
Thread SizePart
Number
Output Guarentee
Voltage(P-P)
TerminationThreadLength
(in)
SensorLength
(in)Agency
ApprovalTemp Rating
(deg C) Page34-20 70085-1010-405 94 Cable 275 4 X -55 to 22034-20 70085-1010-413 134 Wires 15 275 X -65 to 9534-20 70085-1010-005 134 Wires 1875 3125 X -65 to 9534-20 70085-1010-541 134 Cable 188 313 X -20 to 22034-20 70085-1010-542 134 Cable 275 4 X -20 to 22034-20 70085-1010-327 134 Wires 275 4 X -65 to 9534-20 70085-1010-540 134 Cable 4 525 X -20 to 22034-20 70085-1010-328 134 Wires 4 525 X -65 to 9534-20 70085-1010-543 134 Cable 6 725 X -20 to 22034-20 70085-1010-414 134 Wires 6 725 X -65 to 9534-20 70085-3030-222 134 Cable 275 4 X -65 to 95
M16 x 15 70085-1010-425 49 Connector 3 4125 -55 to 107M16 x 15 70085-3030-235 134 Cable 15 275 X -65 to 95M16 x 15 70085-3030-237 134 Cable 15 275 X -65 to 95
58-18 70084-1713-111 134 Connector 1125 25 -40 to 15058-18 70085-1010-001 34 Connector 1125 225 -55 to 10758-18 70085-1010-003 34 Connector 2625 375 -55 to 10758-18 70085-1010-018 34 Connector 3625 475 -55 to 10758-18 70085-1010-118 34 Connector 5 6125 -55 to 10758-18 70085-1010-002 129 Connector 1125 225 -55 to 10758-18 70085-1010-175 129 Connector 2625 375 -55 to 10758-18 70085-1010-026 129 Connector 3625 475 -55 to 10758-18 70085-1010-408 129 Connector 5 6125 -55 to 10758-18 70085-1010-028 215 Connector 1437 253 -70 to 10758-18 70085-1010-004 43 Wires 1125 2125 -70 to 10758-18 70085-1010-469 43 Wires 2750 375 -70 to 10758-18 70085-1010-131 151 Cable 1687 1687 -55 to 10758-18 70085-1010-214 151 Cable 2937 2937 -55 to 10758-18 70085-1010-078 34 Wires 1812 1812 -55 to 10758-18 70085-1010-137 34 Wires 2937 2937 -55 to 10758-18 70085-1010-220 128 Wires 2937 2937 -55 to 10758-18 70085-1010-421 49 Connector 2475 36 -55 to 10758-18 70085-1010-424 49 Connector 4493 5618 -55 to 10758-18 70085-1010-081 134 Wires 15 275 X -65 to 9558-18 70085-1010-544 134 Cable 188 313 X -20 to 22058-18 70085-1010-411 134 Wires 1875 3125 X -65 to 9558-18 70085-1010-329 134 Wires 275 4 X -65 to 9558-18 70085-1010-330 134 Wires 4 525 X -65 to 9558-18 70085-1010-412 134 Wires 6 725 X -65 to 9558-18 70085-1010-404 134 Cable 15 275 X -20 to 22058-18 70085-1010-406 134 Cable 275 4 X -20 to 22058-18 70085-1010-417 134 Cable 4 525 X -20 to 22058-18 70085-1010-420 134 Cable 6 725 X -20 to 22058-18 70085-1010-403 94 Cable 15 275 X -55 to 22058-18 70085-1010-415 94 Cable 4 525 X -55 to 22058-18 70085-1010-416 94 Cable 6 725 X -55 to 22058-18 70085-3030-111 134 Cable 15 275 X -65 to 9558-18 70085-3030-112 134 Cable 275 4 X -65 to 9558-18 70085-3030-113 134 Cable 4 525 X -65 to 9558-18 70085-3030-114 134 Cable 6 725 X -65 to 9558-18 70085-3030-211 94 Cable 15 275 X -65 to 9558-18 70085-3030-212 134 Cable 275 4 X -65 to 9558-18 70085-3030-213 94 Cable 4 525 X -65 to 9558-18 70085-3030-214 94 Cable 6 725 X -65 to 95
4
58-18 70085-8080-003 128 Wires 1812 1812 -55 to 107
Output is based on 030 air gap at 500 IPS
19181819191819181918201220201188888888999
1010101011
1212
18191818181819191919191919202020202020202011
Passive Sensor Selection Guide
Thread Size
Part
Number
Output
Guarentee
Voltage
(P-P)
Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval
Temp Rating
(deg C) Page
38-24 70085-1010-007 16 Wires 0812 1252 -55 to 107
38-24 70085-1010-056 16 Wires 3625 4065 -55 to 107
38-24 70085-1010-086 36 Wires 0812 1252 -55 to 107
38-24 70085-1010-355 36 Wires 0812 1252 -55 to 107
38-24 70085-1010-041 2 Wires 0812 1252 -73 to 232
38-24 70085-1010-428 2 Wires 15 194 -73 to 232
38-24 70085-1010-458 2 Wires 3625 4065 -73 to 232
38-24 70085-1010-174 36 Wires 0812 1252 -65 to220
38-24 70085-8080-001 42 Wires 15 15 -55 to 107
375 no thd 70085-1010-314 42 Cable 1375 1375 -30 to 85
375 no thd 70085-8080-004 42 Cable 25 25 -30 to 85
14-40 70085-1010-024 04 Wires 0687 1 -73 to 232
14-40 70085-1010-472 04 Wires 0687 1187 -73 to 232
14-40 70085-1010-227 04 Wires 1687 2 -73 to 232
10-32 70085-1010-037 06 Wires 05 05 -55 to 107
10-32 70085-1010-299 06 Wires 125 125 -55 to 107
10-32 70085-1010-182 03 Wires 05 05 -73 to 232
1032 70085-1010-289 03 Wires 125 125 -73 to 232
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Output is based on 030 air gap at 500 IPS
Magnetic Sensor Selection
The following information is supplied for assistance in selecting the proper sensors for your
particular applications One of the fundamental questions to be answered is ldquoWill there be enough
sensor output voltage at the lowest operating speedrdquo
The sensor output voltage depends on
bull Surface Speed - speed target passes pole piece
bull Gap - distance between target and pole piece
bull Target Size - geometric relationship of pole piece and target
bull Load Impedance - connected to sensor
The surface speed of a gear depends upon its diameter and RPM Surface speed is expressed in
terms of inches per second (IPS)
Surface Speed (IPS) = RPM x Outside Dia (in) x π60
There is an optimum pitch (or tooth size) to
obtain the highest possible output from a sensor
but this is seldom necessary Figure 4 illustrates
the relationship of tooth size and spacing for
optimum magnetic sensor output Using a fine
tooth gear relative to a large pole piece diameter
sensor results in a lower generated voltage
because the flux also passes into adjacent teeth
resulting in a lower total flux variation
The relationship between pole piece diameter and
gear pitch and its effect on the output of a sensor
is described in Table A
Table A Relative Output Vs Gear Pitch
The load impedance with relation to the internal impedance of the sensor dictates the amount
of sensor output voltage that will be seen by that load Magnetic sensors are designed with the
lowest practical impedance consistent with providing maximum output The load impedance should
be high in relation to the impedance of the sensor to minimize the voltage drop across the coil and
to deliver the maximum output to the load
Most of the output voltages listed in this catalog are based on a load impedance of 100k ohms
To use a generality the load impedance should be 10 times that of the sensor
In order to assist you in selecting your sensor Al-Tek Instruments has developed an output vs
speed curve for each sensor family By looking at the application extremes of highest speedlowest
gap and lowest speedhighest gap the full variation of sensor output can easily be determined We
also specify each family in two ways Standard - minimum output voltage at 1000 IPS 0005 in
gap Guarantee Point - minimum output voltage at 500 IPS 0030 in gap Sensors with 187rdquo dia
pole piece are tested with an 8 DP gear 100k ohms load 106rdquo dia amp smaller pole piece sensors
are tested with a 20 DP gear 100k ohms load Sensors with connectors also use a 250 pf capaci-
tor shunted across the load
Figure 4 Sensor output as a functionof gear tooth size
Pole Piece Gear PitchDia (in) 8 12 16 20 24 32 48
187 100 083 033 016 mdash mdash mdash
106 141 141 127 100 070 028 007
093 125 125 125 100 075 037 012
062 095 107 100 100 092 090 036
040 100 100 100 100 100 090 060
1 Dimension of tooth 4 Pole piece diametertop surface
2 Tooth height 5 Air gap
3 Space between teeth 6 Gear face width
For maximum control and approximately sinusoidalwaveform the following conditions should be obtained
(1) equal to or slightly less than (4)
(2) equal to or more than (3)
(3) approximately 15 to 3 times (4)
(5) as small as possible 005rdquo minimum
(6) equal to or more than (4)
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Calculation of Output Voltage
Selection of the proper Al-Tek magnetic sensor may require the calculation of sensor output volt-age to assure proper operation in your specific application To assist in this area let us consider thefollowing typical application Requirement is speed display with overspeed and underspeed control aswell as 4-20 mA signal to a PLC Speed range is 0-3600 RPM with low speed set point at 300 RPMavailable shaft diameter for mounting a gear is 2000 in and a 030 in air gap is ideal
You have selected a Tachtrol 30 PN T77630-10 with a 60T steel split gear PN G79870-202-1901 andyou are considering to use sensor PN 70085-1010-001 The question is if the sensor has enoughoutput voltage at 300 RPM
We can list the following parameters
a Tachtrol 30 Load impedance - 12k-ohmsSensitivity - 200 mV peak
b Split gear Outside dia - 5166 in DP - 12No of Teeth - 60
c SensorStandard output voltage - 40V (P-P) minGuarantee Point - 34V P-P minDC Resistance - 130 ohms maxTypical inductance - 33 mH ref
Step 1 Calculate surface speed of gearSS = RPM x Outside Dia x π = 300 x 5166 x 314 SS = 81 IPS
60 60
Step 2 Determine Peak-to-Peak output voltageReferring to the performance curves of sensor PN 70085-1010-001 the min output voltageis approx03 V (P-P) at 81 IPS and 0030 in gap It is a fact that output voltage vs surfacespeed is a near linear function therefore another method of determining output voltage isto set up a ratio using the guarantee point
34V (P-P) = E E = 55V (P-P)500 IPS 81
Step 3 Correction for pitchFor a 0106 in pole piece dia and a 12 DP gear the correction factor from Table A is 1 41(See pg 5)
Ec= 55 x 141 = 78 V (P-P)
Step 4 Converting to peak voltage Simply divide by 2 Ec = 78 divide 2 = 39V peak
Step 5 Correction for loadThe 39V or 390mV sensor output voltage will be divided across the impedance of the loadand sensor The load impedance is 12000 ohms resistive The impedance of the sensor hasa resistive and inductive element At low frequencies the inductive element is very small andcan therefore be disregarded leaving the max DC resistance of 130 ohms for consideration
The load correction factor (fL) can be expressed as(fL) = Z (load) = 12000 = 99
Z (load) + Z (sensor) 12130
Ec = 99 x 390 = 386 mV peak
The final adjusted value is 386 mV peak
As stated earlier the sensitivity or threshold of the Tachtrol 30 is 200mV peak at the stated conditions the selection of PN 70085-1010-001 is acceptable
By setting up ratios you can determine that the minimum sensed speed is 155 RPM
If the final value of Ec had been slightly less than 200 mV a reduction of the air gap (from 030rdquo
to 025rdquo) would boost the output above 200 mV
If it should be determined that the required sensor cannot be selected from the catalog modelsthe best procedure is to compile a list of all your requirements and contact your area distributor toassist you in the selection of the correct sensor
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-001 1125 (2857)70085-1010-003 2625 (6667)70085-1010-018 3625 (9207)70085-1010-118 5000 (12700)(Select cable from group ldquoArdquo see index)
SpecificationsOutput Voltage (Standard) 40 V (P-P)Output Voltage (Guarantee Point) 34 V (P-P)DC Resistance 130 ohms maxTypical Inductance 33 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -55 to +107degCNet Weight 5 oz max
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-002 1125 (2857)70085-1010-175 2625 (6667)70085-1010-026 3625 (9207)70085-1010-408 5000 (12700)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 150 V (P-P)Output Voltage (Guarantee Point)129 V (P-P)DC Resistance 1500 ohms maxTypical Inductance 360 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -55 to +107degCNet Weight 5 oz max
Performance Curves
General Purpose
High Sensitivity
Based on 20 DP Gear
Based on 20 DP Gear
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Passive Speed Sensors
Dimensions in inches and (mm)
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-004 1125 (2857)70085-1010-469 2750 (6985)
Performance Curves
SpecificationsOutput Voltage (Standard) 43 V (P-P)Output Voltage (Guarantee Point) 43 V (P-P)DC Resistance 130 ohms maxTypical Inductance 32-46 mH refOutput Polarity Red lead positiveOperating Temperature -73 to +107degCLead length 10 ft (305 m)Net Weight 16 oz max
Ordering Part Thread Length (A)70085-1010-028 1437 (3650)(Select cable from group ldquoArdquo see index)
Power Output
Performance Curves
SpecificationsOutput Voltage (Standard) 75 V (P-P)Output Voltage (Guarantee Point) 215 V (P-P)DC Resistance 210 ohms maxTypical Inductance 50 to 95 mH refOutput Polarity Pin B positiveOperating Temperature -73 to +107deg CNet Weight 22 oz max
Conduit Fitting ndash General Purpose
Based on 8 DP Gear
Based on 20 DP Gear
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-07870085-1010-137
Performance Curves
SpecificationsOutput Voltage (Standard) 40 V (P-P)Output Voltage (Guarantee Point) 34 V (P-P)DC Resistance 130 ohms maxTypical Inductance 33 mH refOutput Polarity white lead positiveOperating Temperature -55 to +107degCLead Length -078 12 in (305 cm)
-137 24 in (609 cm)Net Weight 3 oz max
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-13170085-1010-214
SpecificationsOutput Voltage (Standard) 120 V (P-P)Output Voltage (Guarantee Point)151 V (P-P)
Typical Inductance 40-60 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107deg CCable Length 10 ft (305 m)Net Weight 5 oz max
Full Thread ndash Power Output
Performance Curves
Full Thread ndash General Purpose
Based on 8 DP Gear
Based on 20 DP Gear
180 (4572)(7772)
DC Resistance 250 ohms max
180306
(4572)(7772)
306
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Passive Speed Sensors
Dimensions in inches and (mm)
Full Thread ndash High Sensitivity
Ordering Part Thread Length (A)70085-8080-00370085-1010-220
Performance Curves
Molded ndash High Sensitivity
Ordering Part Thread Length (A)70084-1713-111 1125 (2857)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 190 V (P-P)Output Voltage (Guarantee Point) 139 V (P-P)DC Resistance 1200 ohms maxTypical Inductance 400 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -40 to +150deg CNet Weight 2 oz max
SpecificationsOutput Voltage (Standard) 150 V (P-P)Output Voltage (Guarantee Point) 128 V (P-P)
Typical Inductance 500 mH refOutput Polarity White lead positiveOperating Temperature -55 to + 107degCLead Length -003 12 in (305 cm)
-220 36 in (914 cm)Net Weight 3 oz max
6251588
58 ndash 18 FAMILY
Based on 20 DP Gear
Based on 20 DP Gear
180306
(4572)(7772)
DC Resistance 1430 ohms max
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Passive Speed Sensors
Molded
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-421 2475 (6287)70085-1010-425 3000 (7620)70085-1010-424 4493 (11412)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 63 V (P-P)Output Voltage (Guarantee Point) 49V (P-P)DC Resistance 250 ohms maxTypical Inductance 63 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -55 to +107deg CNet Weight 5 oz max
M16 x 15 Thd
Dimensions in inches and (mm)
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Passive Speed Sensors
Dimensions in inches and (mm)
General Purpose
Ordering Part Thread Length (A)70085-1010-007 812 (2062)70085-1010-056
Ordering Part Thread Length (A)70085-1010-086 812 (2062)70085-1010-355 812 (2062)
Performance Curves
High Sensitivity
38 ndash 24 FAMILY
SpecificationsOutput Voltage (Standard) 21 V (P-P)Output Voltage (Guarantee Point) 16 V (P-P)
Typical Inductance 22 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 6 in (152 cm)Net Weight 2 oz max
SpecificationsOutput Voltage (Standard) 55 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length -086 18 in (457 cm)Cable Length -355 40 in (1016 cm)Net Weight 2 oz max
Performance Curves
Based on 20 DP Gear
Based on 20 DP Gear
3625 (9208)
DC Resistance 125 ohms max
DC Resistance 960 ohms maxOutput Voltage (Guarantee Point) 42V (P-P)
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Passive Speed Sensors
Dimensions in inches and (mm)
38 ndash 24 FAMILY
General Purpose ndash High Temperature
Ordering Part Thread Length (A)70085-1010-041 812 (2062)70085-1010-428 1500 (3810)70085-1010-458
Performance Curves
SpecificationsOutput Voltage (Standard) 24 V (P-P)Output Voltage (Guarantee Point) 20 V (P-P)
Typical Inductance 21 mH refOutput Polarity White lead positiveOperating Temperature -73 to +232degCLead Length 40 in (1 m)Net Weight 2 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Ordering Part Thread Length (A)70085-1010-174 812 (2062)
Performance Curves
High Sensitivity - High Temperature
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 36V (P-P)
Output Polarity White lead positiveOperating Temperature -65 to +220degCCable Length 60 in (15 m)Net Weight 2 oz max
3625 (9208)
DC Resistance 125 ohms max
DC Resistance 705 ohms maxTypical Inductance 150 mH ref
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)
70085-8080-001 1500 (3810)
Full Thread ndash High Sensitivity
Smooth Body ndash High Sensitivity
Ordering Part 70085-1010-314 1375 (3493)70085-8080-004 2500 (6350)
Performance Curves
Performance Curves
38 ndash 24 FAMILY
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -55 to + 107degCLead Length 6 in (152cm)Net Weight 1 oz max
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -30 to +85degCLead Length -004 6 in (152cm)Cable Length -314 10ft (305m)Net Weight 3 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Length (A)
70085-1010-120 1250 (3175)
DC Resistance 960 ohms max
DC Resistance 960 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)
Performance Curves
Ordering Part Thread Length (A) (B)70085-1010-024 687 (1745) 313 (795)70085-1010-472 687 (1745) 500 (1270)70085-1010-227 1687 (4285) 313 (795)
SpecificationsOutput Voltage (Standard) 47 V (P-P)Output Voltage (Guarantee Point) 04 V (P-P)DC Resistance 125 ohms maxTypical Inductance 5-12 mH refOutput Polarity White lead positiveOperating Temperature -73 to 232degCLead Length 8 in (203 cm)Cable Length -472 60 in (15 m)Net Weight 2 oz max
B as ed on 20 DP G ear
and cable for extra protection Extra locknut provided
General Purpose - High Temperature
14 - 40 FAMILY
Egress is a 2-conductor AWG 26 shielded Teflon cable with 3 long shrink tubing over housing
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-037 500 (1270)70085-1010-299 1250 (3175)
Performance Curves
General Purpose ndash High Temperature
SpecificationsOutput Voltage (Standard) 13 V (P-P)Output Voltage (Guarantee Point) 6 V (P-P)DC Resistance 190 ohms maxTypical Inductance 10 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 18 in (457 cm)Net Weight 1 oz max
10 - 32 FAMILY
High Sensitivity
Ordering Part Thread Length (A)70085-1010-182 500 (1270)70085-1010-289 1250 (3175)
Performance Curves
SpecificationsOutput Voltage (Standard) 6 V (P-P)Output Voltage (Guarantee Point) 3 V (P-P)
Typical Inductance 2 mH refOutput Polarity White lead positiveOperating Temperature -73 to +150degCLead Length 18 in (457 cm)Net Weight 1 oz max
Based on 20 DP Gear
Based on 20 DP Gear
DC Resistance 50 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)Based on 8 DP Gear
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-413 1500 (3810)70085-1010-005 1875 (4763)70085-1010-327 2750 (6985)70085-1010-328 4000 (10160)70085-1010-414 6000 (15240)
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positiveOperating Temperature -65 to +95degCLead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1Groups E F G Temp Code T3C
Ordering Part Thread Length (A)70085-1010-081 1500 (3810)70085-1010-411 1875 (4763)70085-1010-329 2750 (6985)70085-1010-330 4000 (10160)70085-1010-412 6000 (15240)
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Lead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Based on 8 DP Gear
Groups E F G Temp Code T3C
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ULATEXCSA Sensors The products on pgs 18-20 are capable of up to a SIL 3 rating
ULATEXCSA Sensors
ATEX Group II Category 3G Zone 2
ATEX Group II Category 3G Zone 2
18
Operating Temperature -65 to 95degC
Passive Speed Sensors
Dimensions in inches and (mm)
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-403 1500 (3810)
70085-1010-405 2750
70085-1010-415 4000 (10160)70085-1010-416 6000 (15240)
Performance Curves
SpecificationsOutput Voltage (Standard) 90 V (P-P)Output Voltage (Guarantee Point) 94 V (P-P)DC Resistance 660 ohms maxTypical Inductance 210 mH maxOutput Polarity White lead positiveOperating Temperature -55 to +220deg CMounting Thread -0405 34 - 20 UNEF-2ACable Length 15 ft (457 m)Net Weight 16 oz max
Ordering Part Thread Length (A)70085-1010-404 1500 (3810)
70085-1010-406 2750 (6985)70085-1010-417 4000 (10160)70085-1010-420 6000 (15240)
SpecificationsOutput Voltage (Standard) 60V (P-P)Output Voltage (Guarantee Point) 134V (P-P)DC Resistance 210 ohms maxTypical Inductance 75 mH maxOutput Polarity White lead positiveOperating Temperature -20 to +220degCCable Length 15 ft (457m)Net Weight 16 oz max
Performance Curves
Based on 20 DP Gear
Based on 8 DP Gear
THREAD SIZE
FM ATEX Sensors
THREAD SIZE(6985)
58-18 UNF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
2750 (6985) 4000 (10160) 6000 (15240)
58-18 UNF-2A70085-1010-544 1875 (4763)
70085-1010-541 1875 (4763) 34-20 UNEF-2A70085-1010-542 34-20 UNEF-2A70085-1010-540 34-20 UNEF-2A70085-1010-543 34-20 UNEF-2A
34-20 UNEF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
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Thread Size (B)
Thread Size (B)
19
FM ATEX Sensors
Passive Speed Sensors LISTED PRODUCT
Performance Curves
Based on 8 DP Gear
IEC EX Sensors
Rating ATEX and IEC Ex Equip Group II Category 2G Gas Group IIC Zone 1Sensor must be used with MTL 7764ac intrinsic barrierUser must install sensor in such a manner as to limit the output voltage to lessthan 12V Pk-Pk and a total energy of less than 26 microjoules
Available in a range of inch and metric thread lengths and sizes and cable lengths of 3 or 10 meters Consult factory for additional details
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Ordering Part Thread Length (A) Thread Size (B) Cable Length (C) Conduit Thread
70085-3030-111 1500 (3810) 58-18 UNF-2A 3 m 12 NPT70085-3030-112 2750 (6885) 58-18 UNF-2A 3 m 12 NPT70085-3030-113 4000 (1016) 58-18 UNF-2A 3 m 12 NPT70085-3030-114 6000 (1524) 58-18 UNF-2A 3 m 12 NPT70085-3030-211 1500 (3810) 58-18 UNF-2A 12 NPT70085-3030-212 2750 (6885) 58-18 UNF-2A 12 NPT70085-3030-213 4000 (1016) 58-18 UNF-2A 12 NPT70085-3030-214 6000 (1524) 58-18 UNF-2A 12 NPT70085-3030-222 2750 (6885) 12 NPT70085-3030-235 1575 (4000) M16 x 15 6g 10 m G 1270085-3030-237 3937 (1000) M16 x 15 6g 10 m G 12
THREAD SIZE
20
10 m10 m10 m10 m10 m34-20 UNEF-2A
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Net Weight 14 oz maxOperating Temperature -65 to 95degC
The defined SIL capability is based on the end users safety system architecture and defined diagnostics as outlined in IEC 61508 and IEC 61511 for sensors Single channel devise is insufficient to determine zero speed as part ofthe safety function Consult the factory for additional details (Pages 18-20)
KEY FEATURESCapable of up to a SIL 3 Rating PFH 610 E-09 1h
PFD AVG (T1=20 Years) 535 E-04 DC 90 SFF 91
ApplicationUsed for Speed Take Off
The Side Look Sensor (SLS) has been developed byAI-Tek Instruments for Allison automatic transmis-sions for trucks ranging from light duty vans to over-the-road tractors It is available for Allison AT MTand HT transmissions The new SLS improves onearlier designs developed for Allison to replace amechanical speed system
The SLS is a variable reluctance device that pro-vides electronic transmission speed inputs toengine control systems andor electronic dash-boards It mounts directly on the transmission andemploys a unique magnet configuration thatinduces a magnetic field on the side of the sensorin the path of the rotating transmission gear Thissystem with its fewer mounting parts improvesreliability reduces weight and conserves spaceover the earlier designs
AI-Tek Instruments LLCSide Look Sensor
The new SLS uses a molded glass filled nylon bodyto protect the sensor in harsh truck-operatingenvironments It replaces the old fly-lead designwith an integral standard Packard connectorwhich eliminates the added extra connector cost ofthe old design It is available in single and dualoutput versions
The SLS is manufactured in the United StatesAI-Tek Instruments Distributors stock the SLS foroff-the-shelf maintenance repair and overhaul(MRO) requirements
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188
CONNECTOR MATES WITHPACKARD 12162188
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Specifications
PN 70082-1000-021 AT MT
PN 70082-1000-022 AT MT
PN 70082-1000-023 HT
PN 70082-1000-024 HT
Applications
22
Hall Effect Sensors
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for engine timing applications and has developed a line of durable products for
industrial use
With multiple standard variations we offer the widest range of standard catalog
sensors to meet your various design needs The design is flexible to easily meet all
of your application requirements
The Hall Effect sensor can sense each change in target movement regardless of speed
from near zero to 15 kHz frequency range generating a steady pulse train of frequency
proportional to target speed Typically each time a gear tooth (or any ferrous discontinuity)
passes in front of the sensor the output changes state This type of sensor is known as a P
type because it uses N-P-N transistor logic (as opposed to N type which uses P-N-P
transistor logic)
Key features to note are
bull Reverse voltage protection to prevent damage if miswired
bull Extended temperature range
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
AI-Tek has (3) Series of Hall Effect Sensors RH Series DH Series and BH Series
Below is a quick reference chart of the features of each of the series
It is the customers responsibility to determine whether the product is proper for customers use and application
PERFORMANCE RH SERIES DH SERIES BH SERIES1 Output Channel 1 Output Channel 2 Output Channels
+ Direction
Zero speed to 15kHz operation X X X
Standard gear tooth sensing X X X
Fine 32 DP Capability X X
Single tooth valley target X X
No installation alignment X
Extended airgap
(0100rdquo+ for 12DP and coarser targets) X X
General noise immunity X X X
EMI Hardened X X
High tolerance to target run-out X X
Self-calibrating X X
Direction Sensing X
Lowest cost X
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Distance Amplifier)For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
34-20 DH1612-113 TTL Cable 15 3375
34-20 DH1622-113 ST Cable 15 3375
34-20 RH1612-013 TTL Cable 15 3375
34-20 RH1622-013 ST Cable 15 3375
34-20 DH1612-114 TTL Cable 275 4625
34-20 DH1622-114 ST Cable 275 462534-20 RH1612-014 TTL Cable 275 4625
34-20 RH1622-014 ST Cable 275 462534-20 DH1612-105 TTL Connector 15 3375
34-20 DH1622-105 ST Connector 15 3375
34-20 RH1612-005 TTL Connector 15 3375
34-20 RH1622-005 ST Connector 15 3375
34-20 DH1612-106 TTL Connector 275 4625
34-20 DH1622-106 ST Connector 275 4625
34-20 RH1612-006 TTL Connector 275 4625
34-20 RH1622-006 ST Connector 275 4625
34-20 DH1612-107 TTL Connector 4 6512
34-20 DH1622-107 ST Connector 4 6512
34-20 RH1612-007 TTL Connector 4 6512
34-20 RH1622-007 ST Connector 4 6512
34-20 DH1612-109 TTL Wires 15 3375
34-20 DH1622-109 ST Wires 15 3375
34-20 RH1612-009 TTL Wires 15 3375
34-20 RH1622-009 ST Wires 15 3375
34-20 DH1612-110 TTL Wires 275 4625
34-20 DH1622-110 ST Wires 275 4625
34-20 RH1612-010 TTL Wires 275 4625
34-20 RH1622-010 ST Wires 275 4625
34-20 RH1612-025 TTL Cable 1375 475 X
34-20 RH1612-026 TTL Cable 15 3375 X
34-20 RH1622-026 ST Cable 15 3375 X
34-20 RH1612-027 TTL Cable 275 4625 X
34-20 RH1622-027 ST Cable 275 4625 X
Active Sensor Selection Guide
RH amp DH Series
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Active Sensor Selection Guide
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
58-18 DH1512-113 TTL Cable 15 3375
58-18 DH1522-113 ST Cable 15 3375
58-18 RH1512-013 TTL Cable 15 3375
58-18 RH1522-013 ST Cable 15 3375
58-18 DH1512-114 TTL Cable 275 4625
58-18 DH1522-114 ST Cable 275 4625
58-18 RH1512-014 TTL Cable 275 4625
58-18 RH1522-014 ST Cable 275 4625
58-18 DH1512-105 TTL Connector 15 3375
58-18 DH1522-105 ST Connector 15 3375
58-18 RH1512-005 TTL Connector 15 3375
58-18 RH1522-005 ST Connector 15 3375
58-18 DH1512-106 TTL Connector 275 4625
58-18 DH1522-106 ST Connector 275 4625
58-18 RH1512-006 TTL Connector 275 4625
58-18 RH1522-006 ST Connector 275 4625
58-18 DH1512-107 TTL Connector 4 6512
58-18 DH1522-107 ST Connector 4 6512
58-18 RH1512-007 TTL Connector 4 6512
58-18 RH1522-007 ST Connector 4 6512
58-18 DH1512-109 TTL Cable 15 3375
58-18 DH1522-109 ST Cable 15 3375
58-18 RH1512-009 TTL Cable 15 3375
58-18 RH1522-009 ST Cable 15 3375
58-18 DH1512-110 TTL Cable 275 4625
58-18 DH1522-110 ST Cable 275 4625
58-18 RH1512-010 TTL Cable 275 4625
58-18 RH1522-010 ST Cable 275 4625
58-18 RH1512-026 TTL Cable 15 3375 X
58-18 RH1522-026 ST Cable 15 3375 X
58-18 RH1512-027 TTL Cable 275 4625 X
58-18 RH1522-027 ST Cable 275 4625 X
58-18 DH1512-210 ST Cable 275 275
58-18 DH1522-210 ST Cable 275 275
38-32 RH1320-001 ST Wires 163 163
38-32 RH1320-003 ST Cable 163 163
38-24 RH1320-009 ST Wires 163 163
38-24 RH1320-010 ST Cable 163 163
38-24 RH1320-012 ST Cable 3 3
38 Dia RH1320-005 ST Wires
38 Dia RH1320-006 ST Cable
NOTE RTD Temperature Sensing Feature
_ _
_ _
RH amp DH Series
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Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +46 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage
-30 Vdc
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap005 to 020 with a 24 diametral pitch gear005 to 030 with a 20 diametral pitch gear005 to 050 with a 12 diametral pitch gear005 to 075 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B 5NaCl for 48 hrs No visible corrosion
Humidity92 RH 40degC for 90 hrsNo visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 20 Irradiated cross-linked polyolefin
125degC
Rotational alignment of sensing face is notrequired for optimum output signal
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Note Either output will work with any AI-Tek Tachometer
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RH Series
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INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
RH1512-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-014 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-014 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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RH Series
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
RH1512-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1522-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1512-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
RH1522-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1512-007 625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1522-007 625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
RH1612-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1622-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1612-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
RH1622-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1612-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1622-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) Supply Tracking
Net Weight 7 oz max
Fully Threaded with Leads
Part Num Thread A Dimension Lead Length Output
RH1512-009 625-18 UNF-2A 1500 (38100) 12(304) TTL Compatible
RH1522-009 625-18 UNF-2A 1500 (38100) 12(304) Supply Tracking
RH1512-010 625-18 UNF-2A 2750 (69850) 12(304) TTL Compatible
RH1522-010 625-18 UNF-2A 2750 (69850) 12(304) Supply Tracking
RH1612-009 750-20 UNEF-2A 1500 (38100) 12(304) TTL Compatible
RH1622-009 750-20 UNEF-2A 1500 (38100) 12(304) Supply Tracking
RH1612-010 750-20 UNEF-2A 2750 (69850) 12(304) TTL Compatible
RH1622-010 750-20 UNEF-2A 2750 (69850) 12(304) Supply Tracking
Net Weight 3 oz max Dimensions in inches and (mm)
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
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Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
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DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
40
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
44
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
46
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
50
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 4: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/4.jpg)
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Passive Sensor Selection Guide
Thread SizePart
Number
Output Guarentee
Voltage(P-P)
TerminationThreadLength
(in)
SensorLength
(in)Agency
ApprovalTemp Rating
(deg C) Page34-20 70085-1010-405 94 Cable 275 4 X -55 to 22034-20 70085-1010-413 134 Wires 15 275 X -65 to 9534-20 70085-1010-005 134 Wires 1875 3125 X -65 to 9534-20 70085-1010-541 134 Cable 188 313 X -20 to 22034-20 70085-1010-542 134 Cable 275 4 X -20 to 22034-20 70085-1010-327 134 Wires 275 4 X -65 to 9534-20 70085-1010-540 134 Cable 4 525 X -20 to 22034-20 70085-1010-328 134 Wires 4 525 X -65 to 9534-20 70085-1010-543 134 Cable 6 725 X -20 to 22034-20 70085-1010-414 134 Wires 6 725 X -65 to 9534-20 70085-3030-222 134 Cable 275 4 X -65 to 95
M16 x 15 70085-1010-425 49 Connector 3 4125 -55 to 107M16 x 15 70085-3030-235 134 Cable 15 275 X -65 to 95M16 x 15 70085-3030-237 134 Cable 15 275 X -65 to 95
58-18 70084-1713-111 134 Connector 1125 25 -40 to 15058-18 70085-1010-001 34 Connector 1125 225 -55 to 10758-18 70085-1010-003 34 Connector 2625 375 -55 to 10758-18 70085-1010-018 34 Connector 3625 475 -55 to 10758-18 70085-1010-118 34 Connector 5 6125 -55 to 10758-18 70085-1010-002 129 Connector 1125 225 -55 to 10758-18 70085-1010-175 129 Connector 2625 375 -55 to 10758-18 70085-1010-026 129 Connector 3625 475 -55 to 10758-18 70085-1010-408 129 Connector 5 6125 -55 to 10758-18 70085-1010-028 215 Connector 1437 253 -70 to 10758-18 70085-1010-004 43 Wires 1125 2125 -70 to 10758-18 70085-1010-469 43 Wires 2750 375 -70 to 10758-18 70085-1010-131 151 Cable 1687 1687 -55 to 10758-18 70085-1010-214 151 Cable 2937 2937 -55 to 10758-18 70085-1010-078 34 Wires 1812 1812 -55 to 10758-18 70085-1010-137 34 Wires 2937 2937 -55 to 10758-18 70085-1010-220 128 Wires 2937 2937 -55 to 10758-18 70085-1010-421 49 Connector 2475 36 -55 to 10758-18 70085-1010-424 49 Connector 4493 5618 -55 to 10758-18 70085-1010-081 134 Wires 15 275 X -65 to 9558-18 70085-1010-544 134 Cable 188 313 X -20 to 22058-18 70085-1010-411 134 Wires 1875 3125 X -65 to 9558-18 70085-1010-329 134 Wires 275 4 X -65 to 9558-18 70085-1010-330 134 Wires 4 525 X -65 to 9558-18 70085-1010-412 134 Wires 6 725 X -65 to 9558-18 70085-1010-404 134 Cable 15 275 X -20 to 22058-18 70085-1010-406 134 Cable 275 4 X -20 to 22058-18 70085-1010-417 134 Cable 4 525 X -20 to 22058-18 70085-1010-420 134 Cable 6 725 X -20 to 22058-18 70085-1010-403 94 Cable 15 275 X -55 to 22058-18 70085-1010-415 94 Cable 4 525 X -55 to 22058-18 70085-1010-416 94 Cable 6 725 X -55 to 22058-18 70085-3030-111 134 Cable 15 275 X -65 to 9558-18 70085-3030-112 134 Cable 275 4 X -65 to 9558-18 70085-3030-113 134 Cable 4 525 X -65 to 9558-18 70085-3030-114 134 Cable 6 725 X -65 to 9558-18 70085-3030-211 94 Cable 15 275 X -65 to 9558-18 70085-3030-212 134 Cable 275 4 X -65 to 9558-18 70085-3030-213 94 Cable 4 525 X -65 to 9558-18 70085-3030-214 94 Cable 6 725 X -65 to 95
4
58-18 70085-8080-003 128 Wires 1812 1812 -55 to 107
Output is based on 030 air gap at 500 IPS
19181819191819181918201220201188888888999
1010101011
1212
18191818181819191919191919202020202020202011
Passive Sensor Selection Guide
Thread Size
Part
Number
Output
Guarentee
Voltage
(P-P)
Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval
Temp Rating
(deg C) Page
38-24 70085-1010-007 16 Wires 0812 1252 -55 to 107
38-24 70085-1010-056 16 Wires 3625 4065 -55 to 107
38-24 70085-1010-086 36 Wires 0812 1252 -55 to 107
38-24 70085-1010-355 36 Wires 0812 1252 -55 to 107
38-24 70085-1010-041 2 Wires 0812 1252 -73 to 232
38-24 70085-1010-428 2 Wires 15 194 -73 to 232
38-24 70085-1010-458 2 Wires 3625 4065 -73 to 232
38-24 70085-1010-174 36 Wires 0812 1252 -65 to220
38-24 70085-8080-001 42 Wires 15 15 -55 to 107
375 no thd 70085-1010-314 42 Cable 1375 1375 -30 to 85
375 no thd 70085-8080-004 42 Cable 25 25 -30 to 85
14-40 70085-1010-024 04 Wires 0687 1 -73 to 232
14-40 70085-1010-472 04 Wires 0687 1187 -73 to 232
14-40 70085-1010-227 04 Wires 1687 2 -73 to 232
10-32 70085-1010-037 06 Wires 05 05 -55 to 107
10-32 70085-1010-299 06 Wires 125 125 -55 to 107
10-32 70085-1010-182 03 Wires 05 05 -73 to 232
1032 70085-1010-289 03 Wires 125 125 -73 to 232
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131313131414141415151516161617171717
Output is based on 030 air gap at 500 IPS
Magnetic Sensor Selection
The following information is supplied for assistance in selecting the proper sensors for your
particular applications One of the fundamental questions to be answered is ldquoWill there be enough
sensor output voltage at the lowest operating speedrdquo
The sensor output voltage depends on
bull Surface Speed - speed target passes pole piece
bull Gap - distance between target and pole piece
bull Target Size - geometric relationship of pole piece and target
bull Load Impedance - connected to sensor
The surface speed of a gear depends upon its diameter and RPM Surface speed is expressed in
terms of inches per second (IPS)
Surface Speed (IPS) = RPM x Outside Dia (in) x π60
There is an optimum pitch (or tooth size) to
obtain the highest possible output from a sensor
but this is seldom necessary Figure 4 illustrates
the relationship of tooth size and spacing for
optimum magnetic sensor output Using a fine
tooth gear relative to a large pole piece diameter
sensor results in a lower generated voltage
because the flux also passes into adjacent teeth
resulting in a lower total flux variation
The relationship between pole piece diameter and
gear pitch and its effect on the output of a sensor
is described in Table A
Table A Relative Output Vs Gear Pitch
The load impedance with relation to the internal impedance of the sensor dictates the amount
of sensor output voltage that will be seen by that load Magnetic sensors are designed with the
lowest practical impedance consistent with providing maximum output The load impedance should
be high in relation to the impedance of the sensor to minimize the voltage drop across the coil and
to deliver the maximum output to the load
Most of the output voltages listed in this catalog are based on a load impedance of 100k ohms
To use a generality the load impedance should be 10 times that of the sensor
In order to assist you in selecting your sensor Al-Tek Instruments has developed an output vs
speed curve for each sensor family By looking at the application extremes of highest speedlowest
gap and lowest speedhighest gap the full variation of sensor output can easily be determined We
also specify each family in two ways Standard - minimum output voltage at 1000 IPS 0005 in
gap Guarantee Point - minimum output voltage at 500 IPS 0030 in gap Sensors with 187rdquo dia
pole piece are tested with an 8 DP gear 100k ohms load 106rdquo dia amp smaller pole piece sensors
are tested with a 20 DP gear 100k ohms load Sensors with connectors also use a 250 pf capaci-
tor shunted across the load
Figure 4 Sensor output as a functionof gear tooth size
Pole Piece Gear PitchDia (in) 8 12 16 20 24 32 48
187 100 083 033 016 mdash mdash mdash
106 141 141 127 100 070 028 007
093 125 125 125 100 075 037 012
062 095 107 100 100 092 090 036
040 100 100 100 100 100 090 060
1 Dimension of tooth 4 Pole piece diametertop surface
2 Tooth height 5 Air gap
3 Space between teeth 6 Gear face width
For maximum control and approximately sinusoidalwaveform the following conditions should be obtained
(1) equal to or slightly less than (4)
(2) equal to or more than (3)
(3) approximately 15 to 3 times (4)
(5) as small as possible 005rdquo minimum
(6) equal to or more than (4)
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Calculation of Output Voltage
Selection of the proper Al-Tek magnetic sensor may require the calculation of sensor output volt-age to assure proper operation in your specific application To assist in this area let us consider thefollowing typical application Requirement is speed display with overspeed and underspeed control aswell as 4-20 mA signal to a PLC Speed range is 0-3600 RPM with low speed set point at 300 RPMavailable shaft diameter for mounting a gear is 2000 in and a 030 in air gap is ideal
You have selected a Tachtrol 30 PN T77630-10 with a 60T steel split gear PN G79870-202-1901 andyou are considering to use sensor PN 70085-1010-001 The question is if the sensor has enoughoutput voltage at 300 RPM
We can list the following parameters
a Tachtrol 30 Load impedance - 12k-ohmsSensitivity - 200 mV peak
b Split gear Outside dia - 5166 in DP - 12No of Teeth - 60
c SensorStandard output voltage - 40V (P-P) minGuarantee Point - 34V P-P minDC Resistance - 130 ohms maxTypical inductance - 33 mH ref
Step 1 Calculate surface speed of gearSS = RPM x Outside Dia x π = 300 x 5166 x 314 SS = 81 IPS
60 60
Step 2 Determine Peak-to-Peak output voltageReferring to the performance curves of sensor PN 70085-1010-001 the min output voltageis approx03 V (P-P) at 81 IPS and 0030 in gap It is a fact that output voltage vs surfacespeed is a near linear function therefore another method of determining output voltage isto set up a ratio using the guarantee point
34V (P-P) = E E = 55V (P-P)500 IPS 81
Step 3 Correction for pitchFor a 0106 in pole piece dia and a 12 DP gear the correction factor from Table A is 1 41(See pg 5)
Ec= 55 x 141 = 78 V (P-P)
Step 4 Converting to peak voltage Simply divide by 2 Ec = 78 divide 2 = 39V peak
Step 5 Correction for loadThe 39V or 390mV sensor output voltage will be divided across the impedance of the loadand sensor The load impedance is 12000 ohms resistive The impedance of the sensor hasa resistive and inductive element At low frequencies the inductive element is very small andcan therefore be disregarded leaving the max DC resistance of 130 ohms for consideration
The load correction factor (fL) can be expressed as(fL) = Z (load) = 12000 = 99
Z (load) + Z (sensor) 12130
Ec = 99 x 390 = 386 mV peak
The final adjusted value is 386 mV peak
As stated earlier the sensitivity or threshold of the Tachtrol 30 is 200mV peak at the stated conditions the selection of PN 70085-1010-001 is acceptable
By setting up ratios you can determine that the minimum sensed speed is 155 RPM
If the final value of Ec had been slightly less than 200 mV a reduction of the air gap (from 030rdquo
to 025rdquo) would boost the output above 200 mV
If it should be determined that the required sensor cannot be selected from the catalog modelsthe best procedure is to compile a list of all your requirements and contact your area distributor toassist you in the selection of the correct sensor
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-001 1125 (2857)70085-1010-003 2625 (6667)70085-1010-018 3625 (9207)70085-1010-118 5000 (12700)(Select cable from group ldquoArdquo see index)
SpecificationsOutput Voltage (Standard) 40 V (P-P)Output Voltage (Guarantee Point) 34 V (P-P)DC Resistance 130 ohms maxTypical Inductance 33 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -55 to +107degCNet Weight 5 oz max
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-002 1125 (2857)70085-1010-175 2625 (6667)70085-1010-026 3625 (9207)70085-1010-408 5000 (12700)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 150 V (P-P)Output Voltage (Guarantee Point)129 V (P-P)DC Resistance 1500 ohms maxTypical Inductance 360 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -55 to +107degCNet Weight 5 oz max
Performance Curves
General Purpose
High Sensitivity
Based on 20 DP Gear
Based on 20 DP Gear
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Passive Speed Sensors
Dimensions in inches and (mm)
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-004 1125 (2857)70085-1010-469 2750 (6985)
Performance Curves
SpecificationsOutput Voltage (Standard) 43 V (P-P)Output Voltage (Guarantee Point) 43 V (P-P)DC Resistance 130 ohms maxTypical Inductance 32-46 mH refOutput Polarity Red lead positiveOperating Temperature -73 to +107degCLead length 10 ft (305 m)Net Weight 16 oz max
Ordering Part Thread Length (A)70085-1010-028 1437 (3650)(Select cable from group ldquoArdquo see index)
Power Output
Performance Curves
SpecificationsOutput Voltage (Standard) 75 V (P-P)Output Voltage (Guarantee Point) 215 V (P-P)DC Resistance 210 ohms maxTypical Inductance 50 to 95 mH refOutput Polarity Pin B positiveOperating Temperature -73 to +107deg CNet Weight 22 oz max
Conduit Fitting ndash General Purpose
Based on 8 DP Gear
Based on 20 DP Gear
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-07870085-1010-137
Performance Curves
SpecificationsOutput Voltage (Standard) 40 V (P-P)Output Voltage (Guarantee Point) 34 V (P-P)DC Resistance 130 ohms maxTypical Inductance 33 mH refOutput Polarity white lead positiveOperating Temperature -55 to +107degCLead Length -078 12 in (305 cm)
-137 24 in (609 cm)Net Weight 3 oz max
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-13170085-1010-214
SpecificationsOutput Voltage (Standard) 120 V (P-P)Output Voltage (Guarantee Point)151 V (P-P)
Typical Inductance 40-60 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107deg CCable Length 10 ft (305 m)Net Weight 5 oz max
Full Thread ndash Power Output
Performance Curves
Full Thread ndash General Purpose
Based on 8 DP Gear
Based on 20 DP Gear
180 (4572)(7772)
DC Resistance 250 ohms max
180306
(4572)(7772)
306
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Passive Speed Sensors
Dimensions in inches and (mm)
Full Thread ndash High Sensitivity
Ordering Part Thread Length (A)70085-8080-00370085-1010-220
Performance Curves
Molded ndash High Sensitivity
Ordering Part Thread Length (A)70084-1713-111 1125 (2857)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 190 V (P-P)Output Voltage (Guarantee Point) 139 V (P-P)DC Resistance 1200 ohms maxTypical Inductance 400 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -40 to +150deg CNet Weight 2 oz max
SpecificationsOutput Voltage (Standard) 150 V (P-P)Output Voltage (Guarantee Point) 128 V (P-P)
Typical Inductance 500 mH refOutput Polarity White lead positiveOperating Temperature -55 to + 107degCLead Length -003 12 in (305 cm)
-220 36 in (914 cm)Net Weight 3 oz max
6251588
58 ndash 18 FAMILY
Based on 20 DP Gear
Based on 20 DP Gear
180306
(4572)(7772)
DC Resistance 1430 ohms max
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Passive Speed Sensors
Molded
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-421 2475 (6287)70085-1010-425 3000 (7620)70085-1010-424 4493 (11412)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 63 V (P-P)Output Voltage (Guarantee Point) 49V (P-P)DC Resistance 250 ohms maxTypical Inductance 63 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -55 to +107deg CNet Weight 5 oz max
M16 x 15 Thd
Dimensions in inches and (mm)
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Passive Speed Sensors
Dimensions in inches and (mm)
General Purpose
Ordering Part Thread Length (A)70085-1010-007 812 (2062)70085-1010-056
Ordering Part Thread Length (A)70085-1010-086 812 (2062)70085-1010-355 812 (2062)
Performance Curves
High Sensitivity
38 ndash 24 FAMILY
SpecificationsOutput Voltage (Standard) 21 V (P-P)Output Voltage (Guarantee Point) 16 V (P-P)
Typical Inductance 22 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 6 in (152 cm)Net Weight 2 oz max
SpecificationsOutput Voltage (Standard) 55 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length -086 18 in (457 cm)Cable Length -355 40 in (1016 cm)Net Weight 2 oz max
Performance Curves
Based on 20 DP Gear
Based on 20 DP Gear
3625 (9208)
DC Resistance 125 ohms max
DC Resistance 960 ohms maxOutput Voltage (Guarantee Point) 42V (P-P)
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Passive Speed Sensors
Dimensions in inches and (mm)
38 ndash 24 FAMILY
General Purpose ndash High Temperature
Ordering Part Thread Length (A)70085-1010-041 812 (2062)70085-1010-428 1500 (3810)70085-1010-458
Performance Curves
SpecificationsOutput Voltage (Standard) 24 V (P-P)Output Voltage (Guarantee Point) 20 V (P-P)
Typical Inductance 21 mH refOutput Polarity White lead positiveOperating Temperature -73 to +232degCLead Length 40 in (1 m)Net Weight 2 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Ordering Part Thread Length (A)70085-1010-174 812 (2062)
Performance Curves
High Sensitivity - High Temperature
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 36V (P-P)
Output Polarity White lead positiveOperating Temperature -65 to +220degCCable Length 60 in (15 m)Net Weight 2 oz max
3625 (9208)
DC Resistance 125 ohms max
DC Resistance 705 ohms maxTypical Inductance 150 mH ref
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)
70085-8080-001 1500 (3810)
Full Thread ndash High Sensitivity
Smooth Body ndash High Sensitivity
Ordering Part 70085-1010-314 1375 (3493)70085-8080-004 2500 (6350)
Performance Curves
Performance Curves
38 ndash 24 FAMILY
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -55 to + 107degCLead Length 6 in (152cm)Net Weight 1 oz max
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -30 to +85degCLead Length -004 6 in (152cm)Cable Length -314 10ft (305m)Net Weight 3 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Length (A)
70085-1010-120 1250 (3175)
DC Resistance 960 ohms max
DC Resistance 960 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)
Performance Curves
Ordering Part Thread Length (A) (B)70085-1010-024 687 (1745) 313 (795)70085-1010-472 687 (1745) 500 (1270)70085-1010-227 1687 (4285) 313 (795)
SpecificationsOutput Voltage (Standard) 47 V (P-P)Output Voltage (Guarantee Point) 04 V (P-P)DC Resistance 125 ohms maxTypical Inductance 5-12 mH refOutput Polarity White lead positiveOperating Temperature -73 to 232degCLead Length 8 in (203 cm)Cable Length -472 60 in (15 m)Net Weight 2 oz max
B as ed on 20 DP G ear
and cable for extra protection Extra locknut provided
General Purpose - High Temperature
14 - 40 FAMILY
Egress is a 2-conductor AWG 26 shielded Teflon cable with 3 long shrink tubing over housing
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-037 500 (1270)70085-1010-299 1250 (3175)
Performance Curves
General Purpose ndash High Temperature
SpecificationsOutput Voltage (Standard) 13 V (P-P)Output Voltage (Guarantee Point) 6 V (P-P)DC Resistance 190 ohms maxTypical Inductance 10 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 18 in (457 cm)Net Weight 1 oz max
10 - 32 FAMILY
High Sensitivity
Ordering Part Thread Length (A)70085-1010-182 500 (1270)70085-1010-289 1250 (3175)
Performance Curves
SpecificationsOutput Voltage (Standard) 6 V (P-P)Output Voltage (Guarantee Point) 3 V (P-P)
Typical Inductance 2 mH refOutput Polarity White lead positiveOperating Temperature -73 to +150degCLead Length 18 in (457 cm)Net Weight 1 oz max
Based on 20 DP Gear
Based on 20 DP Gear
DC Resistance 50 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)Based on 8 DP Gear
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-413 1500 (3810)70085-1010-005 1875 (4763)70085-1010-327 2750 (6985)70085-1010-328 4000 (10160)70085-1010-414 6000 (15240)
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positiveOperating Temperature -65 to +95degCLead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1Groups E F G Temp Code T3C
Ordering Part Thread Length (A)70085-1010-081 1500 (3810)70085-1010-411 1875 (4763)70085-1010-329 2750 (6985)70085-1010-330 4000 (10160)70085-1010-412 6000 (15240)
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Lead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Based on 8 DP Gear
Groups E F G Temp Code T3C
ASU T
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ULATEXCSA Sensors The products on pgs 18-20 are capable of up to a SIL 3 rating
ULATEXCSA Sensors
ATEX Group II Category 3G Zone 2
ATEX Group II Category 3G Zone 2
18
Operating Temperature -65 to 95degC
Passive Speed Sensors
Dimensions in inches and (mm)
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-403 1500 (3810)
70085-1010-405 2750
70085-1010-415 4000 (10160)70085-1010-416 6000 (15240)
Performance Curves
SpecificationsOutput Voltage (Standard) 90 V (P-P)Output Voltage (Guarantee Point) 94 V (P-P)DC Resistance 660 ohms maxTypical Inductance 210 mH maxOutput Polarity White lead positiveOperating Temperature -55 to +220deg CMounting Thread -0405 34 - 20 UNEF-2ACable Length 15 ft (457 m)Net Weight 16 oz max
Ordering Part Thread Length (A)70085-1010-404 1500 (3810)
70085-1010-406 2750 (6985)70085-1010-417 4000 (10160)70085-1010-420 6000 (15240)
SpecificationsOutput Voltage (Standard) 60V (P-P)Output Voltage (Guarantee Point) 134V (P-P)DC Resistance 210 ohms maxTypical Inductance 75 mH maxOutput Polarity White lead positiveOperating Temperature -20 to +220degCCable Length 15 ft (457m)Net Weight 16 oz max
Performance Curves
Based on 20 DP Gear
Based on 8 DP Gear
THREAD SIZE
FM ATEX Sensors
THREAD SIZE(6985)
58-18 UNF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
2750 (6985) 4000 (10160) 6000 (15240)
58-18 UNF-2A70085-1010-544 1875 (4763)
70085-1010-541 1875 (4763) 34-20 UNEF-2A70085-1010-542 34-20 UNEF-2A70085-1010-540 34-20 UNEF-2A70085-1010-543 34-20 UNEF-2A
34-20 UNEF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
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Thread Size (B)
Thread Size (B)
19
FM ATEX Sensors
Passive Speed Sensors LISTED PRODUCT
Performance Curves
Based on 8 DP Gear
IEC EX Sensors
Rating ATEX and IEC Ex Equip Group II Category 2G Gas Group IIC Zone 1Sensor must be used with MTL 7764ac intrinsic barrierUser must install sensor in such a manner as to limit the output voltage to lessthan 12V Pk-Pk and a total energy of less than 26 microjoules
Available in a range of inch and metric thread lengths and sizes and cable lengths of 3 or 10 meters Consult factory for additional details
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Ordering Part Thread Length (A) Thread Size (B) Cable Length (C) Conduit Thread
70085-3030-111 1500 (3810) 58-18 UNF-2A 3 m 12 NPT70085-3030-112 2750 (6885) 58-18 UNF-2A 3 m 12 NPT70085-3030-113 4000 (1016) 58-18 UNF-2A 3 m 12 NPT70085-3030-114 6000 (1524) 58-18 UNF-2A 3 m 12 NPT70085-3030-211 1500 (3810) 58-18 UNF-2A 12 NPT70085-3030-212 2750 (6885) 58-18 UNF-2A 12 NPT70085-3030-213 4000 (1016) 58-18 UNF-2A 12 NPT70085-3030-214 6000 (1524) 58-18 UNF-2A 12 NPT70085-3030-222 2750 (6885) 12 NPT70085-3030-235 1575 (4000) M16 x 15 6g 10 m G 1270085-3030-237 3937 (1000) M16 x 15 6g 10 m G 12
THREAD SIZE
20
10 m10 m10 m10 m10 m34-20 UNEF-2A
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Net Weight 14 oz maxOperating Temperature -65 to 95degC
The defined SIL capability is based on the end users safety system architecture and defined diagnostics as outlined in IEC 61508 and IEC 61511 for sensors Single channel devise is insufficient to determine zero speed as part ofthe safety function Consult the factory for additional details (Pages 18-20)
KEY FEATURESCapable of up to a SIL 3 Rating PFH 610 E-09 1h
PFD AVG (T1=20 Years) 535 E-04 DC 90 SFF 91
ApplicationUsed for Speed Take Off
The Side Look Sensor (SLS) has been developed byAI-Tek Instruments for Allison automatic transmis-sions for trucks ranging from light duty vans to over-the-road tractors It is available for Allison AT MTand HT transmissions The new SLS improves onearlier designs developed for Allison to replace amechanical speed system
The SLS is a variable reluctance device that pro-vides electronic transmission speed inputs toengine control systems andor electronic dash-boards It mounts directly on the transmission andemploys a unique magnet configuration thatinduces a magnetic field on the side of the sensorin the path of the rotating transmission gear Thissystem with its fewer mounting parts improvesreliability reduces weight and conserves spaceover the earlier designs
AI-Tek Instruments LLCSide Look Sensor
The new SLS uses a molded glass filled nylon bodyto protect the sensor in harsh truck-operatingenvironments It replaces the old fly-lead designwith an integral standard Packard connectorwhich eliminates the added extra connector cost ofthe old design It is available in single and dualoutput versions
The SLS is manufactured in the United StatesAI-Tek Instruments Distributors stock the SLS foroff-the-shelf maintenance repair and overhaul(MRO) requirements
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188
CONNECTOR MATES WITHPACKARD 12162188
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Specifications
PN 70082-1000-021 AT MT
PN 70082-1000-022 AT MT
PN 70082-1000-023 HT
PN 70082-1000-024 HT
Applications
22
Hall Effect Sensors
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for engine timing applications and has developed a line of durable products for
industrial use
With multiple standard variations we offer the widest range of standard catalog
sensors to meet your various design needs The design is flexible to easily meet all
of your application requirements
The Hall Effect sensor can sense each change in target movement regardless of speed
from near zero to 15 kHz frequency range generating a steady pulse train of frequency
proportional to target speed Typically each time a gear tooth (or any ferrous discontinuity)
passes in front of the sensor the output changes state This type of sensor is known as a P
type because it uses N-P-N transistor logic (as opposed to N type which uses P-N-P
transistor logic)
Key features to note are
bull Reverse voltage protection to prevent damage if miswired
bull Extended temperature range
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
AI-Tek has (3) Series of Hall Effect Sensors RH Series DH Series and BH Series
Below is a quick reference chart of the features of each of the series
It is the customers responsibility to determine whether the product is proper for customers use and application
PERFORMANCE RH SERIES DH SERIES BH SERIES1 Output Channel 1 Output Channel 2 Output Channels
+ Direction
Zero speed to 15kHz operation X X X
Standard gear tooth sensing X X X
Fine 32 DP Capability X X
Single tooth valley target X X
No installation alignment X
Extended airgap
(0100rdquo+ for 12DP and coarser targets) X X
General noise immunity X X X
EMI Hardened X X
High tolerance to target run-out X X
Self-calibrating X X
Direction Sensing X
Lowest cost X
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Distance Amplifier)For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
34-20 DH1612-113 TTL Cable 15 3375
34-20 DH1622-113 ST Cable 15 3375
34-20 RH1612-013 TTL Cable 15 3375
34-20 RH1622-013 ST Cable 15 3375
34-20 DH1612-114 TTL Cable 275 4625
34-20 DH1622-114 ST Cable 275 462534-20 RH1612-014 TTL Cable 275 4625
34-20 RH1622-014 ST Cable 275 462534-20 DH1612-105 TTL Connector 15 3375
34-20 DH1622-105 ST Connector 15 3375
34-20 RH1612-005 TTL Connector 15 3375
34-20 RH1622-005 ST Connector 15 3375
34-20 DH1612-106 TTL Connector 275 4625
34-20 DH1622-106 ST Connector 275 4625
34-20 RH1612-006 TTL Connector 275 4625
34-20 RH1622-006 ST Connector 275 4625
34-20 DH1612-107 TTL Connector 4 6512
34-20 DH1622-107 ST Connector 4 6512
34-20 RH1612-007 TTL Connector 4 6512
34-20 RH1622-007 ST Connector 4 6512
34-20 DH1612-109 TTL Wires 15 3375
34-20 DH1622-109 ST Wires 15 3375
34-20 RH1612-009 TTL Wires 15 3375
34-20 RH1622-009 ST Wires 15 3375
34-20 DH1612-110 TTL Wires 275 4625
34-20 DH1622-110 ST Wires 275 4625
34-20 RH1612-010 TTL Wires 275 4625
34-20 RH1622-010 ST Wires 275 4625
34-20 RH1612-025 TTL Cable 1375 475 X
34-20 RH1612-026 TTL Cable 15 3375 X
34-20 RH1622-026 ST Cable 15 3375 X
34-20 RH1612-027 TTL Cable 275 4625 X
34-20 RH1622-027 ST Cable 275 4625 X
Active Sensor Selection Guide
RH amp DH Series
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Active Sensor Selection Guide
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
58-18 DH1512-113 TTL Cable 15 3375
58-18 DH1522-113 ST Cable 15 3375
58-18 RH1512-013 TTL Cable 15 3375
58-18 RH1522-013 ST Cable 15 3375
58-18 DH1512-114 TTL Cable 275 4625
58-18 DH1522-114 ST Cable 275 4625
58-18 RH1512-014 TTL Cable 275 4625
58-18 RH1522-014 ST Cable 275 4625
58-18 DH1512-105 TTL Connector 15 3375
58-18 DH1522-105 ST Connector 15 3375
58-18 RH1512-005 TTL Connector 15 3375
58-18 RH1522-005 ST Connector 15 3375
58-18 DH1512-106 TTL Connector 275 4625
58-18 DH1522-106 ST Connector 275 4625
58-18 RH1512-006 TTL Connector 275 4625
58-18 RH1522-006 ST Connector 275 4625
58-18 DH1512-107 TTL Connector 4 6512
58-18 DH1522-107 ST Connector 4 6512
58-18 RH1512-007 TTL Connector 4 6512
58-18 RH1522-007 ST Connector 4 6512
58-18 DH1512-109 TTL Cable 15 3375
58-18 DH1522-109 ST Cable 15 3375
58-18 RH1512-009 TTL Cable 15 3375
58-18 RH1522-009 ST Cable 15 3375
58-18 DH1512-110 TTL Cable 275 4625
58-18 DH1522-110 ST Cable 275 4625
58-18 RH1512-010 TTL Cable 275 4625
58-18 RH1522-010 ST Cable 275 4625
58-18 RH1512-026 TTL Cable 15 3375 X
58-18 RH1522-026 ST Cable 15 3375 X
58-18 RH1512-027 TTL Cable 275 4625 X
58-18 RH1522-027 ST Cable 275 4625 X
58-18 DH1512-210 ST Cable 275 275
58-18 DH1522-210 ST Cable 275 275
38-32 RH1320-001 ST Wires 163 163
38-32 RH1320-003 ST Cable 163 163
38-24 RH1320-009 ST Wires 163 163
38-24 RH1320-010 ST Cable 163 163
38-24 RH1320-012 ST Cable 3 3
38 Dia RH1320-005 ST Wires
38 Dia RH1320-006 ST Cable
NOTE RTD Temperature Sensing Feature
_ _
_ _
RH amp DH Series
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Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +46 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage
-30 Vdc
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap005 to 020 with a 24 diametral pitch gear005 to 030 with a 20 diametral pitch gear005 to 050 with a 12 diametral pitch gear005 to 075 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B 5NaCl for 48 hrs No visible corrosion
Humidity92 RH 40degC for 90 hrsNo visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 20 Irradiated cross-linked polyolefin
125degC
Rotational alignment of sensing face is notrequired for optimum output signal
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Note Either output will work with any AI-Tek Tachometer
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RH Series
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INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
RH1512-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-014 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-014 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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RH Series
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
RH1512-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1522-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1512-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
RH1522-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1512-007 625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1522-007 625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
RH1612-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1622-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1612-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
RH1622-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1612-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1622-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) Supply Tracking
Net Weight 7 oz max
Fully Threaded with Leads
Part Num Thread A Dimension Lead Length Output
RH1512-009 625-18 UNF-2A 1500 (38100) 12(304) TTL Compatible
RH1522-009 625-18 UNF-2A 1500 (38100) 12(304) Supply Tracking
RH1512-010 625-18 UNF-2A 2750 (69850) 12(304) TTL Compatible
RH1522-010 625-18 UNF-2A 2750 (69850) 12(304) Supply Tracking
RH1612-009 750-20 UNEF-2A 1500 (38100) 12(304) TTL Compatible
RH1622-009 750-20 UNEF-2A 1500 (38100) 12(304) Supply Tracking
RH1612-010 750-20 UNEF-2A 2750 (69850) 12(304) TTL Compatible
RH1622-010 750-20 UNEF-2A 2750 (69850) 12(304) Supply Tracking
Net Weight 3 oz max Dimensions in inches and (mm)
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
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Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
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DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
38
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
40
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
44
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
46
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
50
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 5: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/5.jpg)
Passive Sensor Selection Guide
Thread Size
Part
Number
Output
Guarentee
Voltage
(P-P)
Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval
Temp Rating
(deg C) Page
38-24 70085-1010-007 16 Wires 0812 1252 -55 to 107
38-24 70085-1010-056 16 Wires 3625 4065 -55 to 107
38-24 70085-1010-086 36 Wires 0812 1252 -55 to 107
38-24 70085-1010-355 36 Wires 0812 1252 -55 to 107
38-24 70085-1010-041 2 Wires 0812 1252 -73 to 232
38-24 70085-1010-428 2 Wires 15 194 -73 to 232
38-24 70085-1010-458 2 Wires 3625 4065 -73 to 232
38-24 70085-1010-174 36 Wires 0812 1252 -65 to220
38-24 70085-8080-001 42 Wires 15 15 -55 to 107
375 no thd 70085-1010-314 42 Cable 1375 1375 -30 to 85
375 no thd 70085-8080-004 42 Cable 25 25 -30 to 85
14-40 70085-1010-024 04 Wires 0687 1 -73 to 232
14-40 70085-1010-472 04 Wires 0687 1187 -73 to 232
14-40 70085-1010-227 04 Wires 1687 2 -73 to 232
10-32 70085-1010-037 06 Wires 05 05 -55 to 107
10-32 70085-1010-299 06 Wires 125 125 -55 to 107
10-32 70085-1010-182 03 Wires 05 05 -73 to 232
1032 70085-1010-289 03 Wires 125 125 -73 to 232
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131313131414141415151516161617171717
Output is based on 030 air gap at 500 IPS
Magnetic Sensor Selection
The following information is supplied for assistance in selecting the proper sensors for your
particular applications One of the fundamental questions to be answered is ldquoWill there be enough
sensor output voltage at the lowest operating speedrdquo
The sensor output voltage depends on
bull Surface Speed - speed target passes pole piece
bull Gap - distance between target and pole piece
bull Target Size - geometric relationship of pole piece and target
bull Load Impedance - connected to sensor
The surface speed of a gear depends upon its diameter and RPM Surface speed is expressed in
terms of inches per second (IPS)
Surface Speed (IPS) = RPM x Outside Dia (in) x π60
There is an optimum pitch (or tooth size) to
obtain the highest possible output from a sensor
but this is seldom necessary Figure 4 illustrates
the relationship of tooth size and spacing for
optimum magnetic sensor output Using a fine
tooth gear relative to a large pole piece diameter
sensor results in a lower generated voltage
because the flux also passes into adjacent teeth
resulting in a lower total flux variation
The relationship between pole piece diameter and
gear pitch and its effect on the output of a sensor
is described in Table A
Table A Relative Output Vs Gear Pitch
The load impedance with relation to the internal impedance of the sensor dictates the amount
of sensor output voltage that will be seen by that load Magnetic sensors are designed with the
lowest practical impedance consistent with providing maximum output The load impedance should
be high in relation to the impedance of the sensor to minimize the voltage drop across the coil and
to deliver the maximum output to the load
Most of the output voltages listed in this catalog are based on a load impedance of 100k ohms
To use a generality the load impedance should be 10 times that of the sensor
In order to assist you in selecting your sensor Al-Tek Instruments has developed an output vs
speed curve for each sensor family By looking at the application extremes of highest speedlowest
gap and lowest speedhighest gap the full variation of sensor output can easily be determined We
also specify each family in two ways Standard - minimum output voltage at 1000 IPS 0005 in
gap Guarantee Point - minimum output voltage at 500 IPS 0030 in gap Sensors with 187rdquo dia
pole piece are tested with an 8 DP gear 100k ohms load 106rdquo dia amp smaller pole piece sensors
are tested with a 20 DP gear 100k ohms load Sensors with connectors also use a 250 pf capaci-
tor shunted across the load
Figure 4 Sensor output as a functionof gear tooth size
Pole Piece Gear PitchDia (in) 8 12 16 20 24 32 48
187 100 083 033 016 mdash mdash mdash
106 141 141 127 100 070 028 007
093 125 125 125 100 075 037 012
062 095 107 100 100 092 090 036
040 100 100 100 100 100 090 060
1 Dimension of tooth 4 Pole piece diametertop surface
2 Tooth height 5 Air gap
3 Space between teeth 6 Gear face width
For maximum control and approximately sinusoidalwaveform the following conditions should be obtained
(1) equal to or slightly less than (4)
(2) equal to or more than (3)
(3) approximately 15 to 3 times (4)
(5) as small as possible 005rdquo minimum
(6) equal to or more than (4)
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Calculation of Output Voltage
Selection of the proper Al-Tek magnetic sensor may require the calculation of sensor output volt-age to assure proper operation in your specific application To assist in this area let us consider thefollowing typical application Requirement is speed display with overspeed and underspeed control aswell as 4-20 mA signal to a PLC Speed range is 0-3600 RPM with low speed set point at 300 RPMavailable shaft diameter for mounting a gear is 2000 in and a 030 in air gap is ideal
You have selected a Tachtrol 30 PN T77630-10 with a 60T steel split gear PN G79870-202-1901 andyou are considering to use sensor PN 70085-1010-001 The question is if the sensor has enoughoutput voltage at 300 RPM
We can list the following parameters
a Tachtrol 30 Load impedance - 12k-ohmsSensitivity - 200 mV peak
b Split gear Outside dia - 5166 in DP - 12No of Teeth - 60
c SensorStandard output voltage - 40V (P-P) minGuarantee Point - 34V P-P minDC Resistance - 130 ohms maxTypical inductance - 33 mH ref
Step 1 Calculate surface speed of gearSS = RPM x Outside Dia x π = 300 x 5166 x 314 SS = 81 IPS
60 60
Step 2 Determine Peak-to-Peak output voltageReferring to the performance curves of sensor PN 70085-1010-001 the min output voltageis approx03 V (P-P) at 81 IPS and 0030 in gap It is a fact that output voltage vs surfacespeed is a near linear function therefore another method of determining output voltage isto set up a ratio using the guarantee point
34V (P-P) = E E = 55V (P-P)500 IPS 81
Step 3 Correction for pitchFor a 0106 in pole piece dia and a 12 DP gear the correction factor from Table A is 1 41(See pg 5)
Ec= 55 x 141 = 78 V (P-P)
Step 4 Converting to peak voltage Simply divide by 2 Ec = 78 divide 2 = 39V peak
Step 5 Correction for loadThe 39V or 390mV sensor output voltage will be divided across the impedance of the loadand sensor The load impedance is 12000 ohms resistive The impedance of the sensor hasa resistive and inductive element At low frequencies the inductive element is very small andcan therefore be disregarded leaving the max DC resistance of 130 ohms for consideration
The load correction factor (fL) can be expressed as(fL) = Z (load) = 12000 = 99
Z (load) + Z (sensor) 12130
Ec = 99 x 390 = 386 mV peak
The final adjusted value is 386 mV peak
As stated earlier the sensitivity or threshold of the Tachtrol 30 is 200mV peak at the stated conditions the selection of PN 70085-1010-001 is acceptable
By setting up ratios you can determine that the minimum sensed speed is 155 RPM
If the final value of Ec had been slightly less than 200 mV a reduction of the air gap (from 030rdquo
to 025rdquo) would boost the output above 200 mV
If it should be determined that the required sensor cannot be selected from the catalog modelsthe best procedure is to compile a list of all your requirements and contact your area distributor toassist you in the selection of the correct sensor
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-001 1125 (2857)70085-1010-003 2625 (6667)70085-1010-018 3625 (9207)70085-1010-118 5000 (12700)(Select cable from group ldquoArdquo see index)
SpecificationsOutput Voltage (Standard) 40 V (P-P)Output Voltage (Guarantee Point) 34 V (P-P)DC Resistance 130 ohms maxTypical Inductance 33 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -55 to +107degCNet Weight 5 oz max
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-002 1125 (2857)70085-1010-175 2625 (6667)70085-1010-026 3625 (9207)70085-1010-408 5000 (12700)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 150 V (P-P)Output Voltage (Guarantee Point)129 V (P-P)DC Resistance 1500 ohms maxTypical Inductance 360 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -55 to +107degCNet Weight 5 oz max
Performance Curves
General Purpose
High Sensitivity
Based on 20 DP Gear
Based on 20 DP Gear
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Passive Speed Sensors
Dimensions in inches and (mm)
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-004 1125 (2857)70085-1010-469 2750 (6985)
Performance Curves
SpecificationsOutput Voltage (Standard) 43 V (P-P)Output Voltage (Guarantee Point) 43 V (P-P)DC Resistance 130 ohms maxTypical Inductance 32-46 mH refOutput Polarity Red lead positiveOperating Temperature -73 to +107degCLead length 10 ft (305 m)Net Weight 16 oz max
Ordering Part Thread Length (A)70085-1010-028 1437 (3650)(Select cable from group ldquoArdquo see index)
Power Output
Performance Curves
SpecificationsOutput Voltage (Standard) 75 V (P-P)Output Voltage (Guarantee Point) 215 V (P-P)DC Resistance 210 ohms maxTypical Inductance 50 to 95 mH refOutput Polarity Pin B positiveOperating Temperature -73 to +107deg CNet Weight 22 oz max
Conduit Fitting ndash General Purpose
Based on 8 DP Gear
Based on 20 DP Gear
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-07870085-1010-137
Performance Curves
SpecificationsOutput Voltage (Standard) 40 V (P-P)Output Voltage (Guarantee Point) 34 V (P-P)DC Resistance 130 ohms maxTypical Inductance 33 mH refOutput Polarity white lead positiveOperating Temperature -55 to +107degCLead Length -078 12 in (305 cm)
-137 24 in (609 cm)Net Weight 3 oz max
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-13170085-1010-214
SpecificationsOutput Voltage (Standard) 120 V (P-P)Output Voltage (Guarantee Point)151 V (P-P)
Typical Inductance 40-60 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107deg CCable Length 10 ft (305 m)Net Weight 5 oz max
Full Thread ndash Power Output
Performance Curves
Full Thread ndash General Purpose
Based on 8 DP Gear
Based on 20 DP Gear
180 (4572)(7772)
DC Resistance 250 ohms max
180306
(4572)(7772)
306
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Passive Speed Sensors
Dimensions in inches and (mm)
Full Thread ndash High Sensitivity
Ordering Part Thread Length (A)70085-8080-00370085-1010-220
Performance Curves
Molded ndash High Sensitivity
Ordering Part Thread Length (A)70084-1713-111 1125 (2857)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 190 V (P-P)Output Voltage (Guarantee Point) 139 V (P-P)DC Resistance 1200 ohms maxTypical Inductance 400 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -40 to +150deg CNet Weight 2 oz max
SpecificationsOutput Voltage (Standard) 150 V (P-P)Output Voltage (Guarantee Point) 128 V (P-P)
Typical Inductance 500 mH refOutput Polarity White lead positiveOperating Temperature -55 to + 107degCLead Length -003 12 in (305 cm)
-220 36 in (914 cm)Net Weight 3 oz max
6251588
58 ndash 18 FAMILY
Based on 20 DP Gear
Based on 20 DP Gear
180306
(4572)(7772)
DC Resistance 1430 ohms max
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Passive Speed Sensors
Molded
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-421 2475 (6287)70085-1010-425 3000 (7620)70085-1010-424 4493 (11412)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 63 V (P-P)Output Voltage (Guarantee Point) 49V (P-P)DC Resistance 250 ohms maxTypical Inductance 63 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -55 to +107deg CNet Weight 5 oz max
M16 x 15 Thd
Dimensions in inches and (mm)
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Passive Speed Sensors
Dimensions in inches and (mm)
General Purpose
Ordering Part Thread Length (A)70085-1010-007 812 (2062)70085-1010-056
Ordering Part Thread Length (A)70085-1010-086 812 (2062)70085-1010-355 812 (2062)
Performance Curves
High Sensitivity
38 ndash 24 FAMILY
SpecificationsOutput Voltage (Standard) 21 V (P-P)Output Voltage (Guarantee Point) 16 V (P-P)
Typical Inductance 22 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 6 in (152 cm)Net Weight 2 oz max
SpecificationsOutput Voltage (Standard) 55 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length -086 18 in (457 cm)Cable Length -355 40 in (1016 cm)Net Weight 2 oz max
Performance Curves
Based on 20 DP Gear
Based on 20 DP Gear
3625 (9208)
DC Resistance 125 ohms max
DC Resistance 960 ohms maxOutput Voltage (Guarantee Point) 42V (P-P)
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Passive Speed Sensors
Dimensions in inches and (mm)
38 ndash 24 FAMILY
General Purpose ndash High Temperature
Ordering Part Thread Length (A)70085-1010-041 812 (2062)70085-1010-428 1500 (3810)70085-1010-458
Performance Curves
SpecificationsOutput Voltage (Standard) 24 V (P-P)Output Voltage (Guarantee Point) 20 V (P-P)
Typical Inductance 21 mH refOutput Polarity White lead positiveOperating Temperature -73 to +232degCLead Length 40 in (1 m)Net Weight 2 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Ordering Part Thread Length (A)70085-1010-174 812 (2062)
Performance Curves
High Sensitivity - High Temperature
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 36V (P-P)
Output Polarity White lead positiveOperating Temperature -65 to +220degCCable Length 60 in (15 m)Net Weight 2 oz max
3625 (9208)
DC Resistance 125 ohms max
DC Resistance 705 ohms maxTypical Inductance 150 mH ref
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)
70085-8080-001 1500 (3810)
Full Thread ndash High Sensitivity
Smooth Body ndash High Sensitivity
Ordering Part 70085-1010-314 1375 (3493)70085-8080-004 2500 (6350)
Performance Curves
Performance Curves
38 ndash 24 FAMILY
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -55 to + 107degCLead Length 6 in (152cm)Net Weight 1 oz max
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -30 to +85degCLead Length -004 6 in (152cm)Cable Length -314 10ft (305m)Net Weight 3 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Length (A)
70085-1010-120 1250 (3175)
DC Resistance 960 ohms max
DC Resistance 960 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)
Performance Curves
Ordering Part Thread Length (A) (B)70085-1010-024 687 (1745) 313 (795)70085-1010-472 687 (1745) 500 (1270)70085-1010-227 1687 (4285) 313 (795)
SpecificationsOutput Voltage (Standard) 47 V (P-P)Output Voltage (Guarantee Point) 04 V (P-P)DC Resistance 125 ohms maxTypical Inductance 5-12 mH refOutput Polarity White lead positiveOperating Temperature -73 to 232degCLead Length 8 in (203 cm)Cable Length -472 60 in (15 m)Net Weight 2 oz max
B as ed on 20 DP G ear
and cable for extra protection Extra locknut provided
General Purpose - High Temperature
14 - 40 FAMILY
Egress is a 2-conductor AWG 26 shielded Teflon cable with 3 long shrink tubing over housing
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-037 500 (1270)70085-1010-299 1250 (3175)
Performance Curves
General Purpose ndash High Temperature
SpecificationsOutput Voltage (Standard) 13 V (P-P)Output Voltage (Guarantee Point) 6 V (P-P)DC Resistance 190 ohms maxTypical Inductance 10 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 18 in (457 cm)Net Weight 1 oz max
10 - 32 FAMILY
High Sensitivity
Ordering Part Thread Length (A)70085-1010-182 500 (1270)70085-1010-289 1250 (3175)
Performance Curves
SpecificationsOutput Voltage (Standard) 6 V (P-P)Output Voltage (Guarantee Point) 3 V (P-P)
Typical Inductance 2 mH refOutput Polarity White lead positiveOperating Temperature -73 to +150degCLead Length 18 in (457 cm)Net Weight 1 oz max
Based on 20 DP Gear
Based on 20 DP Gear
DC Resistance 50 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)Based on 8 DP Gear
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-413 1500 (3810)70085-1010-005 1875 (4763)70085-1010-327 2750 (6985)70085-1010-328 4000 (10160)70085-1010-414 6000 (15240)
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positiveOperating Temperature -65 to +95degCLead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1Groups E F G Temp Code T3C
Ordering Part Thread Length (A)70085-1010-081 1500 (3810)70085-1010-411 1875 (4763)70085-1010-329 2750 (6985)70085-1010-330 4000 (10160)70085-1010-412 6000 (15240)
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Lead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Based on 8 DP Gear
Groups E F G Temp Code T3C
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ULATEXCSA Sensors The products on pgs 18-20 are capable of up to a SIL 3 rating
ULATEXCSA Sensors
ATEX Group II Category 3G Zone 2
ATEX Group II Category 3G Zone 2
18
Operating Temperature -65 to 95degC
Passive Speed Sensors
Dimensions in inches and (mm)
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-403 1500 (3810)
70085-1010-405 2750
70085-1010-415 4000 (10160)70085-1010-416 6000 (15240)
Performance Curves
SpecificationsOutput Voltage (Standard) 90 V (P-P)Output Voltage (Guarantee Point) 94 V (P-P)DC Resistance 660 ohms maxTypical Inductance 210 mH maxOutput Polarity White lead positiveOperating Temperature -55 to +220deg CMounting Thread -0405 34 - 20 UNEF-2ACable Length 15 ft (457 m)Net Weight 16 oz max
Ordering Part Thread Length (A)70085-1010-404 1500 (3810)
70085-1010-406 2750 (6985)70085-1010-417 4000 (10160)70085-1010-420 6000 (15240)
SpecificationsOutput Voltage (Standard) 60V (P-P)Output Voltage (Guarantee Point) 134V (P-P)DC Resistance 210 ohms maxTypical Inductance 75 mH maxOutput Polarity White lead positiveOperating Temperature -20 to +220degCCable Length 15 ft (457m)Net Weight 16 oz max
Performance Curves
Based on 20 DP Gear
Based on 8 DP Gear
THREAD SIZE
FM ATEX Sensors
THREAD SIZE(6985)
58-18 UNF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
2750 (6985) 4000 (10160) 6000 (15240)
58-18 UNF-2A70085-1010-544 1875 (4763)
70085-1010-541 1875 (4763) 34-20 UNEF-2A70085-1010-542 34-20 UNEF-2A70085-1010-540 34-20 UNEF-2A70085-1010-543 34-20 UNEF-2A
34-20 UNEF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
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Thread Size (B)
Thread Size (B)
19
FM ATEX Sensors
Passive Speed Sensors LISTED PRODUCT
Performance Curves
Based on 8 DP Gear
IEC EX Sensors
Rating ATEX and IEC Ex Equip Group II Category 2G Gas Group IIC Zone 1Sensor must be used with MTL 7764ac intrinsic barrierUser must install sensor in such a manner as to limit the output voltage to lessthan 12V Pk-Pk and a total energy of less than 26 microjoules
Available in a range of inch and metric thread lengths and sizes and cable lengths of 3 or 10 meters Consult factory for additional details
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Ordering Part Thread Length (A) Thread Size (B) Cable Length (C) Conduit Thread
70085-3030-111 1500 (3810) 58-18 UNF-2A 3 m 12 NPT70085-3030-112 2750 (6885) 58-18 UNF-2A 3 m 12 NPT70085-3030-113 4000 (1016) 58-18 UNF-2A 3 m 12 NPT70085-3030-114 6000 (1524) 58-18 UNF-2A 3 m 12 NPT70085-3030-211 1500 (3810) 58-18 UNF-2A 12 NPT70085-3030-212 2750 (6885) 58-18 UNF-2A 12 NPT70085-3030-213 4000 (1016) 58-18 UNF-2A 12 NPT70085-3030-214 6000 (1524) 58-18 UNF-2A 12 NPT70085-3030-222 2750 (6885) 12 NPT70085-3030-235 1575 (4000) M16 x 15 6g 10 m G 1270085-3030-237 3937 (1000) M16 x 15 6g 10 m G 12
THREAD SIZE
20
10 m10 m10 m10 m10 m34-20 UNEF-2A
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Net Weight 14 oz maxOperating Temperature -65 to 95degC
The defined SIL capability is based on the end users safety system architecture and defined diagnostics as outlined in IEC 61508 and IEC 61511 for sensors Single channel devise is insufficient to determine zero speed as part ofthe safety function Consult the factory for additional details (Pages 18-20)
KEY FEATURESCapable of up to a SIL 3 Rating PFH 610 E-09 1h
PFD AVG (T1=20 Years) 535 E-04 DC 90 SFF 91
ApplicationUsed for Speed Take Off
The Side Look Sensor (SLS) has been developed byAI-Tek Instruments for Allison automatic transmis-sions for trucks ranging from light duty vans to over-the-road tractors It is available for Allison AT MTand HT transmissions The new SLS improves onearlier designs developed for Allison to replace amechanical speed system
The SLS is a variable reluctance device that pro-vides electronic transmission speed inputs toengine control systems andor electronic dash-boards It mounts directly on the transmission andemploys a unique magnet configuration thatinduces a magnetic field on the side of the sensorin the path of the rotating transmission gear Thissystem with its fewer mounting parts improvesreliability reduces weight and conserves spaceover the earlier designs
AI-Tek Instruments LLCSide Look Sensor
The new SLS uses a molded glass filled nylon bodyto protect the sensor in harsh truck-operatingenvironments It replaces the old fly-lead designwith an integral standard Packard connectorwhich eliminates the added extra connector cost ofthe old design It is available in single and dualoutput versions
The SLS is manufactured in the United StatesAI-Tek Instruments Distributors stock the SLS foroff-the-shelf maintenance repair and overhaul(MRO) requirements
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188
CONNECTOR MATES WITHPACKARD 12162188
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Outline and Mounting Dimensions
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Specifications
PN 70082-1000-021 AT MT
PN 70082-1000-022 AT MT
PN 70082-1000-023 HT
PN 70082-1000-024 HT
Applications
22
Hall Effect Sensors
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for engine timing applications and has developed a line of durable products for
industrial use
With multiple standard variations we offer the widest range of standard catalog
sensors to meet your various design needs The design is flexible to easily meet all
of your application requirements
The Hall Effect sensor can sense each change in target movement regardless of speed
from near zero to 15 kHz frequency range generating a steady pulse train of frequency
proportional to target speed Typically each time a gear tooth (or any ferrous discontinuity)
passes in front of the sensor the output changes state This type of sensor is known as a P
type because it uses N-P-N transistor logic (as opposed to N type which uses P-N-P
transistor logic)
Key features to note are
bull Reverse voltage protection to prevent damage if miswired
bull Extended temperature range
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
AI-Tek has (3) Series of Hall Effect Sensors RH Series DH Series and BH Series
Below is a quick reference chart of the features of each of the series
It is the customers responsibility to determine whether the product is proper for customers use and application
PERFORMANCE RH SERIES DH SERIES BH SERIES1 Output Channel 1 Output Channel 2 Output Channels
+ Direction
Zero speed to 15kHz operation X X X
Standard gear tooth sensing X X X
Fine 32 DP Capability X X
Single tooth valley target X X
No installation alignment X
Extended airgap
(0100rdquo+ for 12DP and coarser targets) X X
General noise immunity X X X
EMI Hardened X X
High tolerance to target run-out X X
Self-calibrating X X
Direction Sensing X
Lowest cost X
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Distance Amplifier)For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
34-20 DH1612-113 TTL Cable 15 3375
34-20 DH1622-113 ST Cable 15 3375
34-20 RH1612-013 TTL Cable 15 3375
34-20 RH1622-013 ST Cable 15 3375
34-20 DH1612-114 TTL Cable 275 4625
34-20 DH1622-114 ST Cable 275 462534-20 RH1612-014 TTL Cable 275 4625
34-20 RH1622-014 ST Cable 275 462534-20 DH1612-105 TTL Connector 15 3375
34-20 DH1622-105 ST Connector 15 3375
34-20 RH1612-005 TTL Connector 15 3375
34-20 RH1622-005 ST Connector 15 3375
34-20 DH1612-106 TTL Connector 275 4625
34-20 DH1622-106 ST Connector 275 4625
34-20 RH1612-006 TTL Connector 275 4625
34-20 RH1622-006 ST Connector 275 4625
34-20 DH1612-107 TTL Connector 4 6512
34-20 DH1622-107 ST Connector 4 6512
34-20 RH1612-007 TTL Connector 4 6512
34-20 RH1622-007 ST Connector 4 6512
34-20 DH1612-109 TTL Wires 15 3375
34-20 DH1622-109 ST Wires 15 3375
34-20 RH1612-009 TTL Wires 15 3375
34-20 RH1622-009 ST Wires 15 3375
34-20 DH1612-110 TTL Wires 275 4625
34-20 DH1622-110 ST Wires 275 4625
34-20 RH1612-010 TTL Wires 275 4625
34-20 RH1622-010 ST Wires 275 4625
34-20 RH1612-025 TTL Cable 1375 475 X
34-20 RH1612-026 TTL Cable 15 3375 X
34-20 RH1622-026 ST Cable 15 3375 X
34-20 RH1612-027 TTL Cable 275 4625 X
34-20 RH1622-027 ST Cable 275 4625 X
Active Sensor Selection Guide
RH amp DH Series
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Active Sensor Selection Guide
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
58-18 DH1512-113 TTL Cable 15 3375
58-18 DH1522-113 ST Cable 15 3375
58-18 RH1512-013 TTL Cable 15 3375
58-18 RH1522-013 ST Cable 15 3375
58-18 DH1512-114 TTL Cable 275 4625
58-18 DH1522-114 ST Cable 275 4625
58-18 RH1512-014 TTL Cable 275 4625
58-18 RH1522-014 ST Cable 275 4625
58-18 DH1512-105 TTL Connector 15 3375
58-18 DH1522-105 ST Connector 15 3375
58-18 RH1512-005 TTL Connector 15 3375
58-18 RH1522-005 ST Connector 15 3375
58-18 DH1512-106 TTL Connector 275 4625
58-18 DH1522-106 ST Connector 275 4625
58-18 RH1512-006 TTL Connector 275 4625
58-18 RH1522-006 ST Connector 275 4625
58-18 DH1512-107 TTL Connector 4 6512
58-18 DH1522-107 ST Connector 4 6512
58-18 RH1512-007 TTL Connector 4 6512
58-18 RH1522-007 ST Connector 4 6512
58-18 DH1512-109 TTL Cable 15 3375
58-18 DH1522-109 ST Cable 15 3375
58-18 RH1512-009 TTL Cable 15 3375
58-18 RH1522-009 ST Cable 15 3375
58-18 DH1512-110 TTL Cable 275 4625
58-18 DH1522-110 ST Cable 275 4625
58-18 RH1512-010 TTL Cable 275 4625
58-18 RH1522-010 ST Cable 275 4625
58-18 RH1512-026 TTL Cable 15 3375 X
58-18 RH1522-026 ST Cable 15 3375 X
58-18 RH1512-027 TTL Cable 275 4625 X
58-18 RH1522-027 ST Cable 275 4625 X
58-18 DH1512-210 ST Cable 275 275
58-18 DH1522-210 ST Cable 275 275
38-32 RH1320-001 ST Wires 163 163
38-32 RH1320-003 ST Cable 163 163
38-24 RH1320-009 ST Wires 163 163
38-24 RH1320-010 ST Cable 163 163
38-24 RH1320-012 ST Cable 3 3
38 Dia RH1320-005 ST Wires
38 Dia RH1320-006 ST Cable
NOTE RTD Temperature Sensing Feature
_ _
_ _
RH amp DH Series
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Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +46 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage
-30 Vdc
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap005 to 020 with a 24 diametral pitch gear005 to 030 with a 20 diametral pitch gear005 to 050 with a 12 diametral pitch gear005 to 075 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B 5NaCl for 48 hrs No visible corrosion
Humidity92 RH 40degC for 90 hrsNo visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 20 Irradiated cross-linked polyolefin
125degC
Rotational alignment of sensing face is notrequired for optimum output signal
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Note Either output will work with any AI-Tek Tachometer
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RH Series
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INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
RH1512-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-014 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-014 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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750-20 UNEF-2A
750-20 UNEF-2A
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
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RH Series
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
RH1512-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1522-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1512-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
RH1522-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1512-007 625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1522-007 625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
RH1612-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1622-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1612-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
RH1622-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1612-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1622-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) Supply Tracking
Net Weight 7 oz max
Fully Threaded with Leads
Part Num Thread A Dimension Lead Length Output
RH1512-009 625-18 UNF-2A 1500 (38100) 12(304) TTL Compatible
RH1522-009 625-18 UNF-2A 1500 (38100) 12(304) Supply Tracking
RH1512-010 625-18 UNF-2A 2750 (69850) 12(304) TTL Compatible
RH1522-010 625-18 UNF-2A 2750 (69850) 12(304) Supply Tracking
RH1612-009 750-20 UNEF-2A 1500 (38100) 12(304) TTL Compatible
RH1622-009 750-20 UNEF-2A 1500 (38100) 12(304) Supply Tracking
RH1612-010 750-20 UNEF-2A 2750 (69850) 12(304) TTL Compatible
RH1622-010 750-20 UNEF-2A 2750 (69850) 12(304) Supply Tracking
Net Weight 3 oz max Dimensions in inches and (mm)
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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ARH Series
29
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
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Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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1630
RH Series
1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
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DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
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Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 6: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/6.jpg)
Magnetic Sensor Selection
The following information is supplied for assistance in selecting the proper sensors for your
particular applications One of the fundamental questions to be answered is ldquoWill there be enough
sensor output voltage at the lowest operating speedrdquo
The sensor output voltage depends on
bull Surface Speed - speed target passes pole piece
bull Gap - distance between target and pole piece
bull Target Size - geometric relationship of pole piece and target
bull Load Impedance - connected to sensor
The surface speed of a gear depends upon its diameter and RPM Surface speed is expressed in
terms of inches per second (IPS)
Surface Speed (IPS) = RPM x Outside Dia (in) x π60
There is an optimum pitch (or tooth size) to
obtain the highest possible output from a sensor
but this is seldom necessary Figure 4 illustrates
the relationship of tooth size and spacing for
optimum magnetic sensor output Using a fine
tooth gear relative to a large pole piece diameter
sensor results in a lower generated voltage
because the flux also passes into adjacent teeth
resulting in a lower total flux variation
The relationship between pole piece diameter and
gear pitch and its effect on the output of a sensor
is described in Table A
Table A Relative Output Vs Gear Pitch
The load impedance with relation to the internal impedance of the sensor dictates the amount
of sensor output voltage that will be seen by that load Magnetic sensors are designed with the
lowest practical impedance consistent with providing maximum output The load impedance should
be high in relation to the impedance of the sensor to minimize the voltage drop across the coil and
to deliver the maximum output to the load
Most of the output voltages listed in this catalog are based on a load impedance of 100k ohms
To use a generality the load impedance should be 10 times that of the sensor
In order to assist you in selecting your sensor Al-Tek Instruments has developed an output vs
speed curve for each sensor family By looking at the application extremes of highest speedlowest
gap and lowest speedhighest gap the full variation of sensor output can easily be determined We
also specify each family in two ways Standard - minimum output voltage at 1000 IPS 0005 in
gap Guarantee Point - minimum output voltage at 500 IPS 0030 in gap Sensors with 187rdquo dia
pole piece are tested with an 8 DP gear 100k ohms load 106rdquo dia amp smaller pole piece sensors
are tested with a 20 DP gear 100k ohms load Sensors with connectors also use a 250 pf capaci-
tor shunted across the load
Figure 4 Sensor output as a functionof gear tooth size
Pole Piece Gear PitchDia (in) 8 12 16 20 24 32 48
187 100 083 033 016 mdash mdash mdash
106 141 141 127 100 070 028 007
093 125 125 125 100 075 037 012
062 095 107 100 100 092 090 036
040 100 100 100 100 100 090 060
1 Dimension of tooth 4 Pole piece diametertop surface
2 Tooth height 5 Air gap
3 Space between teeth 6 Gear face width
For maximum control and approximately sinusoidalwaveform the following conditions should be obtained
(1) equal to or slightly less than (4)
(2) equal to or more than (3)
(3) approximately 15 to 3 times (4)
(5) as small as possible 005rdquo minimum
(6) equal to or more than (4)
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6
Calculation of Output Voltage
Selection of the proper Al-Tek magnetic sensor may require the calculation of sensor output volt-age to assure proper operation in your specific application To assist in this area let us consider thefollowing typical application Requirement is speed display with overspeed and underspeed control aswell as 4-20 mA signal to a PLC Speed range is 0-3600 RPM with low speed set point at 300 RPMavailable shaft diameter for mounting a gear is 2000 in and a 030 in air gap is ideal
You have selected a Tachtrol 30 PN T77630-10 with a 60T steel split gear PN G79870-202-1901 andyou are considering to use sensor PN 70085-1010-001 The question is if the sensor has enoughoutput voltage at 300 RPM
We can list the following parameters
a Tachtrol 30 Load impedance - 12k-ohmsSensitivity - 200 mV peak
b Split gear Outside dia - 5166 in DP - 12No of Teeth - 60
c SensorStandard output voltage - 40V (P-P) minGuarantee Point - 34V P-P minDC Resistance - 130 ohms maxTypical inductance - 33 mH ref
Step 1 Calculate surface speed of gearSS = RPM x Outside Dia x π = 300 x 5166 x 314 SS = 81 IPS
60 60
Step 2 Determine Peak-to-Peak output voltageReferring to the performance curves of sensor PN 70085-1010-001 the min output voltageis approx03 V (P-P) at 81 IPS and 0030 in gap It is a fact that output voltage vs surfacespeed is a near linear function therefore another method of determining output voltage isto set up a ratio using the guarantee point
34V (P-P) = E E = 55V (P-P)500 IPS 81
Step 3 Correction for pitchFor a 0106 in pole piece dia and a 12 DP gear the correction factor from Table A is 1 41(See pg 5)
Ec= 55 x 141 = 78 V (P-P)
Step 4 Converting to peak voltage Simply divide by 2 Ec = 78 divide 2 = 39V peak
Step 5 Correction for loadThe 39V or 390mV sensor output voltage will be divided across the impedance of the loadand sensor The load impedance is 12000 ohms resistive The impedance of the sensor hasa resistive and inductive element At low frequencies the inductive element is very small andcan therefore be disregarded leaving the max DC resistance of 130 ohms for consideration
The load correction factor (fL) can be expressed as(fL) = Z (load) = 12000 = 99
Z (load) + Z (sensor) 12130
Ec = 99 x 390 = 386 mV peak
The final adjusted value is 386 mV peak
As stated earlier the sensitivity or threshold of the Tachtrol 30 is 200mV peak at the stated conditions the selection of PN 70085-1010-001 is acceptable
By setting up ratios you can determine that the minimum sensed speed is 155 RPM
If the final value of Ec had been slightly less than 200 mV a reduction of the air gap (from 030rdquo
to 025rdquo) would boost the output above 200 mV
If it should be determined that the required sensor cannot be selected from the catalog modelsthe best procedure is to compile a list of all your requirements and contact your area distributor toassist you in the selection of the correct sensor
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-001 1125 (2857)70085-1010-003 2625 (6667)70085-1010-018 3625 (9207)70085-1010-118 5000 (12700)(Select cable from group ldquoArdquo see index)
SpecificationsOutput Voltage (Standard) 40 V (P-P)Output Voltage (Guarantee Point) 34 V (P-P)DC Resistance 130 ohms maxTypical Inductance 33 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -55 to +107degCNet Weight 5 oz max
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-002 1125 (2857)70085-1010-175 2625 (6667)70085-1010-026 3625 (9207)70085-1010-408 5000 (12700)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 150 V (P-P)Output Voltage (Guarantee Point)129 V (P-P)DC Resistance 1500 ohms maxTypical Inductance 360 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -55 to +107degCNet Weight 5 oz max
Performance Curves
General Purpose
High Sensitivity
Based on 20 DP Gear
Based on 20 DP Gear
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Passive Speed Sensors
Dimensions in inches and (mm)
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-004 1125 (2857)70085-1010-469 2750 (6985)
Performance Curves
SpecificationsOutput Voltage (Standard) 43 V (P-P)Output Voltage (Guarantee Point) 43 V (P-P)DC Resistance 130 ohms maxTypical Inductance 32-46 mH refOutput Polarity Red lead positiveOperating Temperature -73 to +107degCLead length 10 ft (305 m)Net Weight 16 oz max
Ordering Part Thread Length (A)70085-1010-028 1437 (3650)(Select cable from group ldquoArdquo see index)
Power Output
Performance Curves
SpecificationsOutput Voltage (Standard) 75 V (P-P)Output Voltage (Guarantee Point) 215 V (P-P)DC Resistance 210 ohms maxTypical Inductance 50 to 95 mH refOutput Polarity Pin B positiveOperating Temperature -73 to +107deg CNet Weight 22 oz max
Conduit Fitting ndash General Purpose
Based on 8 DP Gear
Based on 20 DP Gear
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-07870085-1010-137
Performance Curves
SpecificationsOutput Voltage (Standard) 40 V (P-P)Output Voltage (Guarantee Point) 34 V (P-P)DC Resistance 130 ohms maxTypical Inductance 33 mH refOutput Polarity white lead positiveOperating Temperature -55 to +107degCLead Length -078 12 in (305 cm)
-137 24 in (609 cm)Net Weight 3 oz max
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-13170085-1010-214
SpecificationsOutput Voltage (Standard) 120 V (P-P)Output Voltage (Guarantee Point)151 V (P-P)
Typical Inductance 40-60 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107deg CCable Length 10 ft (305 m)Net Weight 5 oz max
Full Thread ndash Power Output
Performance Curves
Full Thread ndash General Purpose
Based on 8 DP Gear
Based on 20 DP Gear
180 (4572)(7772)
DC Resistance 250 ohms max
180306
(4572)(7772)
306
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Passive Speed Sensors
Dimensions in inches and (mm)
Full Thread ndash High Sensitivity
Ordering Part Thread Length (A)70085-8080-00370085-1010-220
Performance Curves
Molded ndash High Sensitivity
Ordering Part Thread Length (A)70084-1713-111 1125 (2857)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 190 V (P-P)Output Voltage (Guarantee Point) 139 V (P-P)DC Resistance 1200 ohms maxTypical Inductance 400 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -40 to +150deg CNet Weight 2 oz max
SpecificationsOutput Voltage (Standard) 150 V (P-P)Output Voltage (Guarantee Point) 128 V (P-P)
Typical Inductance 500 mH refOutput Polarity White lead positiveOperating Temperature -55 to + 107degCLead Length -003 12 in (305 cm)
-220 36 in (914 cm)Net Weight 3 oz max
6251588
58 ndash 18 FAMILY
Based on 20 DP Gear
Based on 20 DP Gear
180306
(4572)(7772)
DC Resistance 1430 ohms max
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Passive Speed Sensors
Molded
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-421 2475 (6287)70085-1010-425 3000 (7620)70085-1010-424 4493 (11412)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 63 V (P-P)Output Voltage (Guarantee Point) 49V (P-P)DC Resistance 250 ohms maxTypical Inductance 63 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -55 to +107deg CNet Weight 5 oz max
M16 x 15 Thd
Dimensions in inches and (mm)
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Passive Speed Sensors
Dimensions in inches and (mm)
General Purpose
Ordering Part Thread Length (A)70085-1010-007 812 (2062)70085-1010-056
Ordering Part Thread Length (A)70085-1010-086 812 (2062)70085-1010-355 812 (2062)
Performance Curves
High Sensitivity
38 ndash 24 FAMILY
SpecificationsOutput Voltage (Standard) 21 V (P-P)Output Voltage (Guarantee Point) 16 V (P-P)
Typical Inductance 22 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 6 in (152 cm)Net Weight 2 oz max
SpecificationsOutput Voltage (Standard) 55 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length -086 18 in (457 cm)Cable Length -355 40 in (1016 cm)Net Weight 2 oz max
Performance Curves
Based on 20 DP Gear
Based on 20 DP Gear
3625 (9208)
DC Resistance 125 ohms max
DC Resistance 960 ohms maxOutput Voltage (Guarantee Point) 42V (P-P)
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Passive Speed Sensors
Dimensions in inches and (mm)
38 ndash 24 FAMILY
General Purpose ndash High Temperature
Ordering Part Thread Length (A)70085-1010-041 812 (2062)70085-1010-428 1500 (3810)70085-1010-458
Performance Curves
SpecificationsOutput Voltage (Standard) 24 V (P-P)Output Voltage (Guarantee Point) 20 V (P-P)
Typical Inductance 21 mH refOutput Polarity White lead positiveOperating Temperature -73 to +232degCLead Length 40 in (1 m)Net Weight 2 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Ordering Part Thread Length (A)70085-1010-174 812 (2062)
Performance Curves
High Sensitivity - High Temperature
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 36V (P-P)
Output Polarity White lead positiveOperating Temperature -65 to +220degCCable Length 60 in (15 m)Net Weight 2 oz max
3625 (9208)
DC Resistance 125 ohms max
DC Resistance 705 ohms maxTypical Inductance 150 mH ref
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)
70085-8080-001 1500 (3810)
Full Thread ndash High Sensitivity
Smooth Body ndash High Sensitivity
Ordering Part 70085-1010-314 1375 (3493)70085-8080-004 2500 (6350)
Performance Curves
Performance Curves
38 ndash 24 FAMILY
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -55 to + 107degCLead Length 6 in (152cm)Net Weight 1 oz max
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -30 to +85degCLead Length -004 6 in (152cm)Cable Length -314 10ft (305m)Net Weight 3 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Length (A)
70085-1010-120 1250 (3175)
DC Resistance 960 ohms max
DC Resistance 960 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)
Performance Curves
Ordering Part Thread Length (A) (B)70085-1010-024 687 (1745) 313 (795)70085-1010-472 687 (1745) 500 (1270)70085-1010-227 1687 (4285) 313 (795)
SpecificationsOutput Voltage (Standard) 47 V (P-P)Output Voltage (Guarantee Point) 04 V (P-P)DC Resistance 125 ohms maxTypical Inductance 5-12 mH refOutput Polarity White lead positiveOperating Temperature -73 to 232degCLead Length 8 in (203 cm)Cable Length -472 60 in (15 m)Net Weight 2 oz max
B as ed on 20 DP G ear
and cable for extra protection Extra locknut provided
General Purpose - High Temperature
14 - 40 FAMILY
Egress is a 2-conductor AWG 26 shielded Teflon cable with 3 long shrink tubing over housing
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-037 500 (1270)70085-1010-299 1250 (3175)
Performance Curves
General Purpose ndash High Temperature
SpecificationsOutput Voltage (Standard) 13 V (P-P)Output Voltage (Guarantee Point) 6 V (P-P)DC Resistance 190 ohms maxTypical Inductance 10 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 18 in (457 cm)Net Weight 1 oz max
10 - 32 FAMILY
High Sensitivity
Ordering Part Thread Length (A)70085-1010-182 500 (1270)70085-1010-289 1250 (3175)
Performance Curves
SpecificationsOutput Voltage (Standard) 6 V (P-P)Output Voltage (Guarantee Point) 3 V (P-P)
Typical Inductance 2 mH refOutput Polarity White lead positiveOperating Temperature -73 to +150degCLead Length 18 in (457 cm)Net Weight 1 oz max
Based on 20 DP Gear
Based on 20 DP Gear
DC Resistance 50 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)Based on 8 DP Gear
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-413 1500 (3810)70085-1010-005 1875 (4763)70085-1010-327 2750 (6985)70085-1010-328 4000 (10160)70085-1010-414 6000 (15240)
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positiveOperating Temperature -65 to +95degCLead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1Groups E F G Temp Code T3C
Ordering Part Thread Length (A)70085-1010-081 1500 (3810)70085-1010-411 1875 (4763)70085-1010-329 2750 (6985)70085-1010-330 4000 (10160)70085-1010-412 6000 (15240)
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Lead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Based on 8 DP Gear
Groups E F G Temp Code T3C
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ULATEXCSA Sensors The products on pgs 18-20 are capable of up to a SIL 3 rating
ULATEXCSA Sensors
ATEX Group II Category 3G Zone 2
ATEX Group II Category 3G Zone 2
18
Operating Temperature -65 to 95degC
Passive Speed Sensors
Dimensions in inches and (mm)
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-403 1500 (3810)
70085-1010-405 2750
70085-1010-415 4000 (10160)70085-1010-416 6000 (15240)
Performance Curves
SpecificationsOutput Voltage (Standard) 90 V (P-P)Output Voltage (Guarantee Point) 94 V (P-P)DC Resistance 660 ohms maxTypical Inductance 210 mH maxOutput Polarity White lead positiveOperating Temperature -55 to +220deg CMounting Thread -0405 34 - 20 UNEF-2ACable Length 15 ft (457 m)Net Weight 16 oz max
Ordering Part Thread Length (A)70085-1010-404 1500 (3810)
70085-1010-406 2750 (6985)70085-1010-417 4000 (10160)70085-1010-420 6000 (15240)
SpecificationsOutput Voltage (Standard) 60V (P-P)Output Voltage (Guarantee Point) 134V (P-P)DC Resistance 210 ohms maxTypical Inductance 75 mH maxOutput Polarity White lead positiveOperating Temperature -20 to +220degCCable Length 15 ft (457m)Net Weight 16 oz max
Performance Curves
Based on 20 DP Gear
Based on 8 DP Gear
THREAD SIZE
FM ATEX Sensors
THREAD SIZE(6985)
58-18 UNF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
2750 (6985) 4000 (10160) 6000 (15240)
58-18 UNF-2A70085-1010-544 1875 (4763)
70085-1010-541 1875 (4763) 34-20 UNEF-2A70085-1010-542 34-20 UNEF-2A70085-1010-540 34-20 UNEF-2A70085-1010-543 34-20 UNEF-2A
34-20 UNEF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
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Thread Size (B)
Thread Size (B)
19
FM ATEX Sensors
Passive Speed Sensors LISTED PRODUCT
Performance Curves
Based on 8 DP Gear
IEC EX Sensors
Rating ATEX and IEC Ex Equip Group II Category 2G Gas Group IIC Zone 1Sensor must be used with MTL 7764ac intrinsic barrierUser must install sensor in such a manner as to limit the output voltage to lessthan 12V Pk-Pk and a total energy of less than 26 microjoules
Available in a range of inch and metric thread lengths and sizes and cable lengths of 3 or 10 meters Consult factory for additional details
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Ordering Part Thread Length (A) Thread Size (B) Cable Length (C) Conduit Thread
70085-3030-111 1500 (3810) 58-18 UNF-2A 3 m 12 NPT70085-3030-112 2750 (6885) 58-18 UNF-2A 3 m 12 NPT70085-3030-113 4000 (1016) 58-18 UNF-2A 3 m 12 NPT70085-3030-114 6000 (1524) 58-18 UNF-2A 3 m 12 NPT70085-3030-211 1500 (3810) 58-18 UNF-2A 12 NPT70085-3030-212 2750 (6885) 58-18 UNF-2A 12 NPT70085-3030-213 4000 (1016) 58-18 UNF-2A 12 NPT70085-3030-214 6000 (1524) 58-18 UNF-2A 12 NPT70085-3030-222 2750 (6885) 12 NPT70085-3030-235 1575 (4000) M16 x 15 6g 10 m G 1270085-3030-237 3937 (1000) M16 x 15 6g 10 m G 12
THREAD SIZE
20
10 m10 m10 m10 m10 m34-20 UNEF-2A
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Net Weight 14 oz maxOperating Temperature -65 to 95degC
The defined SIL capability is based on the end users safety system architecture and defined diagnostics as outlined in IEC 61508 and IEC 61511 for sensors Single channel devise is insufficient to determine zero speed as part ofthe safety function Consult the factory for additional details (Pages 18-20)
KEY FEATURESCapable of up to a SIL 3 Rating PFH 610 E-09 1h
PFD AVG (T1=20 Years) 535 E-04 DC 90 SFF 91
ApplicationUsed for Speed Take Off
The Side Look Sensor (SLS) has been developed byAI-Tek Instruments for Allison automatic transmis-sions for trucks ranging from light duty vans to over-the-road tractors It is available for Allison AT MTand HT transmissions The new SLS improves onearlier designs developed for Allison to replace amechanical speed system
The SLS is a variable reluctance device that pro-vides electronic transmission speed inputs toengine control systems andor electronic dash-boards It mounts directly on the transmission andemploys a unique magnet configuration thatinduces a magnetic field on the side of the sensorin the path of the rotating transmission gear Thissystem with its fewer mounting parts improvesreliability reduces weight and conserves spaceover the earlier designs
AI-Tek Instruments LLCSide Look Sensor
The new SLS uses a molded glass filled nylon bodyto protect the sensor in harsh truck-operatingenvironments It replaces the old fly-lead designwith an integral standard Packard connectorwhich eliminates the added extra connector cost ofthe old design It is available in single and dualoutput versions
The SLS is manufactured in the United StatesAI-Tek Instruments Distributors stock the SLS foroff-the-shelf maintenance repair and overhaul(MRO) requirements
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188
CONNECTOR MATES WITHPACKARD 12162188
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Outline and Mounting Dimensions
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Specifications
PN 70082-1000-021 AT MT
PN 70082-1000-022 AT MT
PN 70082-1000-023 HT
PN 70082-1000-024 HT
Applications
22
Hall Effect Sensors
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for engine timing applications and has developed a line of durable products for
industrial use
With multiple standard variations we offer the widest range of standard catalog
sensors to meet your various design needs The design is flexible to easily meet all
of your application requirements
The Hall Effect sensor can sense each change in target movement regardless of speed
from near zero to 15 kHz frequency range generating a steady pulse train of frequency
proportional to target speed Typically each time a gear tooth (or any ferrous discontinuity)
passes in front of the sensor the output changes state This type of sensor is known as a P
type because it uses N-P-N transistor logic (as opposed to N type which uses P-N-P
transistor logic)
Key features to note are
bull Reverse voltage protection to prevent damage if miswired
bull Extended temperature range
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
AI-Tek has (3) Series of Hall Effect Sensors RH Series DH Series and BH Series
Below is a quick reference chart of the features of each of the series
It is the customers responsibility to determine whether the product is proper for customers use and application
PERFORMANCE RH SERIES DH SERIES BH SERIES1 Output Channel 1 Output Channel 2 Output Channels
+ Direction
Zero speed to 15kHz operation X X X
Standard gear tooth sensing X X X
Fine 32 DP Capability X X
Single tooth valley target X X
No installation alignment X
Extended airgap
(0100rdquo+ for 12DP and coarser targets) X X
General noise immunity X X X
EMI Hardened X X
High tolerance to target run-out X X
Self-calibrating X X
Direction Sensing X
Lowest cost X
23
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Distance Amplifier)For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
34-20 DH1612-113 TTL Cable 15 3375
34-20 DH1622-113 ST Cable 15 3375
34-20 RH1612-013 TTL Cable 15 3375
34-20 RH1622-013 ST Cable 15 3375
34-20 DH1612-114 TTL Cable 275 4625
34-20 DH1622-114 ST Cable 275 462534-20 RH1612-014 TTL Cable 275 4625
34-20 RH1622-014 ST Cable 275 462534-20 DH1612-105 TTL Connector 15 3375
34-20 DH1622-105 ST Connector 15 3375
34-20 RH1612-005 TTL Connector 15 3375
34-20 RH1622-005 ST Connector 15 3375
34-20 DH1612-106 TTL Connector 275 4625
34-20 DH1622-106 ST Connector 275 4625
34-20 RH1612-006 TTL Connector 275 4625
34-20 RH1622-006 ST Connector 275 4625
34-20 DH1612-107 TTL Connector 4 6512
34-20 DH1622-107 ST Connector 4 6512
34-20 RH1612-007 TTL Connector 4 6512
34-20 RH1622-007 ST Connector 4 6512
34-20 DH1612-109 TTL Wires 15 3375
34-20 DH1622-109 ST Wires 15 3375
34-20 RH1612-009 TTL Wires 15 3375
34-20 RH1622-009 ST Wires 15 3375
34-20 DH1612-110 TTL Wires 275 4625
34-20 DH1622-110 ST Wires 275 4625
34-20 RH1612-010 TTL Wires 275 4625
34-20 RH1622-010 ST Wires 275 4625
34-20 RH1612-025 TTL Cable 1375 475 X
34-20 RH1612-026 TTL Cable 15 3375 X
34-20 RH1622-026 ST Cable 15 3375 X
34-20 RH1612-027 TTL Cable 275 4625 X
34-20 RH1622-027 ST Cable 275 4625 X
Active Sensor Selection Guide
RH amp DH Series
24
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282929292929
Active Sensor Selection Guide
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
58-18 DH1512-113 TTL Cable 15 3375
58-18 DH1522-113 ST Cable 15 3375
58-18 RH1512-013 TTL Cable 15 3375
58-18 RH1522-013 ST Cable 15 3375
58-18 DH1512-114 TTL Cable 275 4625
58-18 DH1522-114 ST Cable 275 4625
58-18 RH1512-014 TTL Cable 275 4625
58-18 RH1522-014 ST Cable 275 4625
58-18 DH1512-105 TTL Connector 15 3375
58-18 DH1522-105 ST Connector 15 3375
58-18 RH1512-005 TTL Connector 15 3375
58-18 RH1522-005 ST Connector 15 3375
58-18 DH1512-106 TTL Connector 275 4625
58-18 DH1522-106 ST Connector 275 4625
58-18 RH1512-006 TTL Connector 275 4625
58-18 RH1522-006 ST Connector 275 4625
58-18 DH1512-107 TTL Connector 4 6512
58-18 DH1522-107 ST Connector 4 6512
58-18 RH1512-007 TTL Connector 4 6512
58-18 RH1522-007 ST Connector 4 6512
58-18 DH1512-109 TTL Cable 15 3375
58-18 DH1522-109 ST Cable 15 3375
58-18 RH1512-009 TTL Cable 15 3375
58-18 RH1522-009 ST Cable 15 3375
58-18 DH1512-110 TTL Cable 275 4625
58-18 DH1522-110 ST Cable 275 4625
58-18 RH1512-010 TTL Cable 275 4625
58-18 RH1522-010 ST Cable 275 4625
58-18 RH1512-026 TTL Cable 15 3375 X
58-18 RH1522-026 ST Cable 15 3375 X
58-18 RH1512-027 TTL Cable 275 4625 X
58-18 RH1522-027 ST Cable 275 4625 X
58-18 DH1512-210 ST Cable 275 275
58-18 DH1522-210 ST Cable 275 275
38-32 RH1320-001 ST Wires 163 163
38-32 RH1320-003 ST Cable 163 163
38-24 RH1320-009 ST Wires 163 163
38-24 RH1320-010 ST Cable 163 163
38-24 RH1320-012 ST Cable 3 3
38 Dia RH1320-005 ST Wires
38 Dia RH1320-006 ST Cable
NOTE RTD Temperature Sensing Feature
_ _
_ _
RH amp DH Series
25
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Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +46 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage
-30 Vdc
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap005 to 020 with a 24 diametral pitch gear005 to 030 with a 20 diametral pitch gear005 to 050 with a 12 diametral pitch gear005 to 075 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B 5NaCl for 48 hrs No visible corrosion
Humidity92 RH 40degC for 90 hrsNo visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 20 Irradiated cross-linked polyolefin
125degC
Rotational alignment of sensing face is notrequired for optimum output signal
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Note Either output will work with any AI-Tek Tachometer
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RH Series
26
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
RH1512-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-014 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-014 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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Instr
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SA
750-20 UNEF-2A
750-20 UNEF-2A
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
27
RH Series
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
RH1512-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1522-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1512-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
RH1522-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1512-007 625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1522-007 625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
RH1612-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1622-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1612-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
RH1622-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1612-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1622-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) Supply Tracking
Net Weight 7 oz max
Fully Threaded with Leads
Part Num Thread A Dimension Lead Length Output
RH1512-009 625-18 UNF-2A 1500 (38100) 12(304) TTL Compatible
RH1522-009 625-18 UNF-2A 1500 (38100) 12(304) Supply Tracking
RH1512-010 625-18 UNF-2A 2750 (69850) 12(304) TTL Compatible
RH1522-010 625-18 UNF-2A 2750 (69850) 12(304) Supply Tracking
RH1612-009 750-20 UNEF-2A 1500 (38100) 12(304) TTL Compatible
RH1622-009 750-20 UNEF-2A 1500 (38100) 12(304) Supply Tracking
RH1612-010 750-20 UNEF-2A 2750 (69850) 12(304) TTL Compatible
RH1622-010 750-20 UNEF-2A 2750 (69850) 12(304) Supply Tracking
Net Weight 3 oz max Dimensions in inches and (mm)
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RH Series
28
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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ARH Series
29
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
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CT
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RH Series
30
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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Dim A
Dimension A
1630
RH Series
1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
31
DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
38
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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A
(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
40
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
44
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
46
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 7: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/7.jpg)
Calculation of Output Voltage
Selection of the proper Al-Tek magnetic sensor may require the calculation of sensor output volt-age to assure proper operation in your specific application To assist in this area let us consider thefollowing typical application Requirement is speed display with overspeed and underspeed control aswell as 4-20 mA signal to a PLC Speed range is 0-3600 RPM with low speed set point at 300 RPMavailable shaft diameter for mounting a gear is 2000 in and a 030 in air gap is ideal
You have selected a Tachtrol 30 PN T77630-10 with a 60T steel split gear PN G79870-202-1901 andyou are considering to use sensor PN 70085-1010-001 The question is if the sensor has enoughoutput voltage at 300 RPM
We can list the following parameters
a Tachtrol 30 Load impedance - 12k-ohmsSensitivity - 200 mV peak
b Split gear Outside dia - 5166 in DP - 12No of Teeth - 60
c SensorStandard output voltage - 40V (P-P) minGuarantee Point - 34V P-P minDC Resistance - 130 ohms maxTypical inductance - 33 mH ref
Step 1 Calculate surface speed of gearSS = RPM x Outside Dia x π = 300 x 5166 x 314 SS = 81 IPS
60 60
Step 2 Determine Peak-to-Peak output voltageReferring to the performance curves of sensor PN 70085-1010-001 the min output voltageis approx03 V (P-P) at 81 IPS and 0030 in gap It is a fact that output voltage vs surfacespeed is a near linear function therefore another method of determining output voltage isto set up a ratio using the guarantee point
34V (P-P) = E E = 55V (P-P)500 IPS 81
Step 3 Correction for pitchFor a 0106 in pole piece dia and a 12 DP gear the correction factor from Table A is 1 41(See pg 5)
Ec= 55 x 141 = 78 V (P-P)
Step 4 Converting to peak voltage Simply divide by 2 Ec = 78 divide 2 = 39V peak
Step 5 Correction for loadThe 39V or 390mV sensor output voltage will be divided across the impedance of the loadand sensor The load impedance is 12000 ohms resistive The impedance of the sensor hasa resistive and inductive element At low frequencies the inductive element is very small andcan therefore be disregarded leaving the max DC resistance of 130 ohms for consideration
The load correction factor (fL) can be expressed as(fL) = Z (load) = 12000 = 99
Z (load) + Z (sensor) 12130
Ec = 99 x 390 = 386 mV peak
The final adjusted value is 386 mV peak
As stated earlier the sensitivity or threshold of the Tachtrol 30 is 200mV peak at the stated conditions the selection of PN 70085-1010-001 is acceptable
By setting up ratios you can determine that the minimum sensed speed is 155 RPM
If the final value of Ec had been slightly less than 200 mV a reduction of the air gap (from 030rdquo
to 025rdquo) would boost the output above 200 mV
If it should be determined that the required sensor cannot be selected from the catalog modelsthe best procedure is to compile a list of all your requirements and contact your area distributor toassist you in the selection of the correct sensor
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7
Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-001 1125 (2857)70085-1010-003 2625 (6667)70085-1010-018 3625 (9207)70085-1010-118 5000 (12700)(Select cable from group ldquoArdquo see index)
SpecificationsOutput Voltage (Standard) 40 V (P-P)Output Voltage (Guarantee Point) 34 V (P-P)DC Resistance 130 ohms maxTypical Inductance 33 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -55 to +107degCNet Weight 5 oz max
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-002 1125 (2857)70085-1010-175 2625 (6667)70085-1010-026 3625 (9207)70085-1010-408 5000 (12700)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 150 V (P-P)Output Voltage (Guarantee Point)129 V (P-P)DC Resistance 1500 ohms maxTypical Inductance 360 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -55 to +107degCNet Weight 5 oz max
Performance Curves
General Purpose
High Sensitivity
Based on 20 DP Gear
Based on 20 DP Gear
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Passive Speed Sensors
Dimensions in inches and (mm)
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-004 1125 (2857)70085-1010-469 2750 (6985)
Performance Curves
SpecificationsOutput Voltage (Standard) 43 V (P-P)Output Voltage (Guarantee Point) 43 V (P-P)DC Resistance 130 ohms maxTypical Inductance 32-46 mH refOutput Polarity Red lead positiveOperating Temperature -73 to +107degCLead length 10 ft (305 m)Net Weight 16 oz max
Ordering Part Thread Length (A)70085-1010-028 1437 (3650)(Select cable from group ldquoArdquo see index)
Power Output
Performance Curves
SpecificationsOutput Voltage (Standard) 75 V (P-P)Output Voltage (Guarantee Point) 215 V (P-P)DC Resistance 210 ohms maxTypical Inductance 50 to 95 mH refOutput Polarity Pin B positiveOperating Temperature -73 to +107deg CNet Weight 22 oz max
Conduit Fitting ndash General Purpose
Based on 8 DP Gear
Based on 20 DP Gear
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-07870085-1010-137
Performance Curves
SpecificationsOutput Voltage (Standard) 40 V (P-P)Output Voltage (Guarantee Point) 34 V (P-P)DC Resistance 130 ohms maxTypical Inductance 33 mH refOutput Polarity white lead positiveOperating Temperature -55 to +107degCLead Length -078 12 in (305 cm)
-137 24 in (609 cm)Net Weight 3 oz max
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-13170085-1010-214
SpecificationsOutput Voltage (Standard) 120 V (P-P)Output Voltage (Guarantee Point)151 V (P-P)
Typical Inductance 40-60 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107deg CCable Length 10 ft (305 m)Net Weight 5 oz max
Full Thread ndash Power Output
Performance Curves
Full Thread ndash General Purpose
Based on 8 DP Gear
Based on 20 DP Gear
180 (4572)(7772)
DC Resistance 250 ohms max
180306
(4572)(7772)
306
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10
Passive Speed Sensors
Dimensions in inches and (mm)
Full Thread ndash High Sensitivity
Ordering Part Thread Length (A)70085-8080-00370085-1010-220
Performance Curves
Molded ndash High Sensitivity
Ordering Part Thread Length (A)70084-1713-111 1125 (2857)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 190 V (P-P)Output Voltage (Guarantee Point) 139 V (P-P)DC Resistance 1200 ohms maxTypical Inductance 400 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -40 to +150deg CNet Weight 2 oz max
SpecificationsOutput Voltage (Standard) 150 V (P-P)Output Voltage (Guarantee Point) 128 V (P-P)
Typical Inductance 500 mH refOutput Polarity White lead positiveOperating Temperature -55 to + 107degCLead Length -003 12 in (305 cm)
-220 36 in (914 cm)Net Weight 3 oz max
6251588
58 ndash 18 FAMILY
Based on 20 DP Gear
Based on 20 DP Gear
180306
(4572)(7772)
DC Resistance 1430 ohms max
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11
Passive Speed Sensors
Molded
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-421 2475 (6287)70085-1010-425 3000 (7620)70085-1010-424 4493 (11412)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 63 V (P-P)Output Voltage (Guarantee Point) 49V (P-P)DC Resistance 250 ohms maxTypical Inductance 63 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -55 to +107deg CNet Weight 5 oz max
M16 x 15 Thd
Dimensions in inches and (mm)
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12
Passive Speed Sensors
Dimensions in inches and (mm)
General Purpose
Ordering Part Thread Length (A)70085-1010-007 812 (2062)70085-1010-056
Ordering Part Thread Length (A)70085-1010-086 812 (2062)70085-1010-355 812 (2062)
Performance Curves
High Sensitivity
38 ndash 24 FAMILY
SpecificationsOutput Voltage (Standard) 21 V (P-P)Output Voltage (Guarantee Point) 16 V (P-P)
Typical Inductance 22 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 6 in (152 cm)Net Weight 2 oz max
SpecificationsOutput Voltage (Standard) 55 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length -086 18 in (457 cm)Cable Length -355 40 in (1016 cm)Net Weight 2 oz max
Performance Curves
Based on 20 DP Gear
Based on 20 DP Gear
3625 (9208)
DC Resistance 125 ohms max
DC Resistance 960 ohms maxOutput Voltage (Guarantee Point) 42V (P-P)
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Passive Speed Sensors
Dimensions in inches and (mm)
38 ndash 24 FAMILY
General Purpose ndash High Temperature
Ordering Part Thread Length (A)70085-1010-041 812 (2062)70085-1010-428 1500 (3810)70085-1010-458
Performance Curves
SpecificationsOutput Voltage (Standard) 24 V (P-P)Output Voltage (Guarantee Point) 20 V (P-P)
Typical Inductance 21 mH refOutput Polarity White lead positiveOperating Temperature -73 to +232degCLead Length 40 in (1 m)Net Weight 2 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Ordering Part Thread Length (A)70085-1010-174 812 (2062)
Performance Curves
High Sensitivity - High Temperature
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 36V (P-P)
Output Polarity White lead positiveOperating Temperature -65 to +220degCCable Length 60 in (15 m)Net Weight 2 oz max
3625 (9208)
DC Resistance 125 ohms max
DC Resistance 705 ohms maxTypical Inductance 150 mH ref
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)
70085-8080-001 1500 (3810)
Full Thread ndash High Sensitivity
Smooth Body ndash High Sensitivity
Ordering Part 70085-1010-314 1375 (3493)70085-8080-004 2500 (6350)
Performance Curves
Performance Curves
38 ndash 24 FAMILY
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -55 to + 107degCLead Length 6 in (152cm)Net Weight 1 oz max
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -30 to +85degCLead Length -004 6 in (152cm)Cable Length -314 10ft (305m)Net Weight 3 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Length (A)
70085-1010-120 1250 (3175)
DC Resistance 960 ohms max
DC Resistance 960 ohms max
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15
Passive Speed Sensors
Dimensions in inches and (mm)
Performance Curves
Ordering Part Thread Length (A) (B)70085-1010-024 687 (1745) 313 (795)70085-1010-472 687 (1745) 500 (1270)70085-1010-227 1687 (4285) 313 (795)
SpecificationsOutput Voltage (Standard) 47 V (P-P)Output Voltage (Guarantee Point) 04 V (P-P)DC Resistance 125 ohms maxTypical Inductance 5-12 mH refOutput Polarity White lead positiveOperating Temperature -73 to 232degCLead Length 8 in (203 cm)Cable Length -472 60 in (15 m)Net Weight 2 oz max
B as ed on 20 DP G ear
and cable for extra protection Extra locknut provided
General Purpose - High Temperature
14 - 40 FAMILY
Egress is a 2-conductor AWG 26 shielded Teflon cable with 3 long shrink tubing over housing
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16
Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-037 500 (1270)70085-1010-299 1250 (3175)
Performance Curves
General Purpose ndash High Temperature
SpecificationsOutput Voltage (Standard) 13 V (P-P)Output Voltage (Guarantee Point) 6 V (P-P)DC Resistance 190 ohms maxTypical Inductance 10 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 18 in (457 cm)Net Weight 1 oz max
10 - 32 FAMILY
High Sensitivity
Ordering Part Thread Length (A)70085-1010-182 500 (1270)70085-1010-289 1250 (3175)
Performance Curves
SpecificationsOutput Voltage (Standard) 6 V (P-P)Output Voltage (Guarantee Point) 3 V (P-P)
Typical Inductance 2 mH refOutput Polarity White lead positiveOperating Temperature -73 to +150degCLead Length 18 in (457 cm)Net Weight 1 oz max
Based on 20 DP Gear
Based on 20 DP Gear
DC Resistance 50 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)Based on 8 DP Gear
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-413 1500 (3810)70085-1010-005 1875 (4763)70085-1010-327 2750 (6985)70085-1010-328 4000 (10160)70085-1010-414 6000 (15240)
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positiveOperating Temperature -65 to +95degCLead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1Groups E F G Temp Code T3C
Ordering Part Thread Length (A)70085-1010-081 1500 (3810)70085-1010-411 1875 (4763)70085-1010-329 2750 (6985)70085-1010-330 4000 (10160)70085-1010-412 6000 (15240)
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Lead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Based on 8 DP Gear
Groups E F G Temp Code T3C
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ULATEXCSA Sensors The products on pgs 18-20 are capable of up to a SIL 3 rating
ULATEXCSA Sensors
ATEX Group II Category 3G Zone 2
ATEX Group II Category 3G Zone 2
18
Operating Temperature -65 to 95degC
Passive Speed Sensors
Dimensions in inches and (mm)
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-403 1500 (3810)
70085-1010-405 2750
70085-1010-415 4000 (10160)70085-1010-416 6000 (15240)
Performance Curves
SpecificationsOutput Voltage (Standard) 90 V (P-P)Output Voltage (Guarantee Point) 94 V (P-P)DC Resistance 660 ohms maxTypical Inductance 210 mH maxOutput Polarity White lead positiveOperating Temperature -55 to +220deg CMounting Thread -0405 34 - 20 UNEF-2ACable Length 15 ft (457 m)Net Weight 16 oz max
Ordering Part Thread Length (A)70085-1010-404 1500 (3810)
70085-1010-406 2750 (6985)70085-1010-417 4000 (10160)70085-1010-420 6000 (15240)
SpecificationsOutput Voltage (Standard) 60V (P-P)Output Voltage (Guarantee Point) 134V (P-P)DC Resistance 210 ohms maxTypical Inductance 75 mH maxOutput Polarity White lead positiveOperating Temperature -20 to +220degCCable Length 15 ft (457m)Net Weight 16 oz max
Performance Curves
Based on 20 DP Gear
Based on 8 DP Gear
THREAD SIZE
FM ATEX Sensors
THREAD SIZE(6985)
58-18 UNF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
2750 (6985) 4000 (10160) 6000 (15240)
58-18 UNF-2A70085-1010-544 1875 (4763)
70085-1010-541 1875 (4763) 34-20 UNEF-2A70085-1010-542 34-20 UNEF-2A70085-1010-540 34-20 UNEF-2A70085-1010-543 34-20 UNEF-2A
34-20 UNEF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
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Thread Size (B)
Thread Size (B)
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FM ATEX Sensors
Passive Speed Sensors LISTED PRODUCT
Performance Curves
Based on 8 DP Gear
IEC EX Sensors
Rating ATEX and IEC Ex Equip Group II Category 2G Gas Group IIC Zone 1Sensor must be used with MTL 7764ac intrinsic barrierUser must install sensor in such a manner as to limit the output voltage to lessthan 12V Pk-Pk and a total energy of less than 26 microjoules
Available in a range of inch and metric thread lengths and sizes and cable lengths of 3 or 10 meters Consult factory for additional details
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Ordering Part Thread Length (A) Thread Size (B) Cable Length (C) Conduit Thread
70085-3030-111 1500 (3810) 58-18 UNF-2A 3 m 12 NPT70085-3030-112 2750 (6885) 58-18 UNF-2A 3 m 12 NPT70085-3030-113 4000 (1016) 58-18 UNF-2A 3 m 12 NPT70085-3030-114 6000 (1524) 58-18 UNF-2A 3 m 12 NPT70085-3030-211 1500 (3810) 58-18 UNF-2A 12 NPT70085-3030-212 2750 (6885) 58-18 UNF-2A 12 NPT70085-3030-213 4000 (1016) 58-18 UNF-2A 12 NPT70085-3030-214 6000 (1524) 58-18 UNF-2A 12 NPT70085-3030-222 2750 (6885) 12 NPT70085-3030-235 1575 (4000) M16 x 15 6g 10 m G 1270085-3030-237 3937 (1000) M16 x 15 6g 10 m G 12
THREAD SIZE
20
10 m10 m10 m10 m10 m34-20 UNEF-2A
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Net Weight 14 oz maxOperating Temperature -65 to 95degC
The defined SIL capability is based on the end users safety system architecture and defined diagnostics as outlined in IEC 61508 and IEC 61511 for sensors Single channel devise is insufficient to determine zero speed as part ofthe safety function Consult the factory for additional details (Pages 18-20)
KEY FEATURESCapable of up to a SIL 3 Rating PFH 610 E-09 1h
PFD AVG (T1=20 Years) 535 E-04 DC 90 SFF 91
ApplicationUsed for Speed Take Off
The Side Look Sensor (SLS) has been developed byAI-Tek Instruments for Allison automatic transmis-sions for trucks ranging from light duty vans to over-the-road tractors It is available for Allison AT MTand HT transmissions The new SLS improves onearlier designs developed for Allison to replace amechanical speed system
The SLS is a variable reluctance device that pro-vides electronic transmission speed inputs toengine control systems andor electronic dash-boards It mounts directly on the transmission andemploys a unique magnet configuration thatinduces a magnetic field on the side of the sensorin the path of the rotating transmission gear Thissystem with its fewer mounting parts improvesreliability reduces weight and conserves spaceover the earlier designs
AI-Tek Instruments LLCSide Look Sensor
The new SLS uses a molded glass filled nylon bodyto protect the sensor in harsh truck-operatingenvironments It replaces the old fly-lead designwith an integral standard Packard connectorwhich eliminates the added extra connector cost ofthe old design It is available in single and dualoutput versions
The SLS is manufactured in the United StatesAI-Tek Instruments Distributors stock the SLS foroff-the-shelf maintenance repair and overhaul(MRO) requirements
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188
CONNECTOR MATES WITHPACKARD 12162188
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Outline and Mounting Dimensions
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Specifications
PN 70082-1000-021 AT MT
PN 70082-1000-022 AT MT
PN 70082-1000-023 HT
PN 70082-1000-024 HT
Applications
22
Hall Effect Sensors
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for engine timing applications and has developed a line of durable products for
industrial use
With multiple standard variations we offer the widest range of standard catalog
sensors to meet your various design needs The design is flexible to easily meet all
of your application requirements
The Hall Effect sensor can sense each change in target movement regardless of speed
from near zero to 15 kHz frequency range generating a steady pulse train of frequency
proportional to target speed Typically each time a gear tooth (or any ferrous discontinuity)
passes in front of the sensor the output changes state This type of sensor is known as a P
type because it uses N-P-N transistor logic (as opposed to N type which uses P-N-P
transistor logic)
Key features to note are
bull Reverse voltage protection to prevent damage if miswired
bull Extended temperature range
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
AI-Tek has (3) Series of Hall Effect Sensors RH Series DH Series and BH Series
Below is a quick reference chart of the features of each of the series
It is the customers responsibility to determine whether the product is proper for customers use and application
PERFORMANCE RH SERIES DH SERIES BH SERIES1 Output Channel 1 Output Channel 2 Output Channels
+ Direction
Zero speed to 15kHz operation X X X
Standard gear tooth sensing X X X
Fine 32 DP Capability X X
Single tooth valley target X X
No installation alignment X
Extended airgap
(0100rdquo+ for 12DP and coarser targets) X X
General noise immunity X X X
EMI Hardened X X
High tolerance to target run-out X X
Self-calibrating X X
Direction Sensing X
Lowest cost X
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Distance Amplifier)For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
34-20 DH1612-113 TTL Cable 15 3375
34-20 DH1622-113 ST Cable 15 3375
34-20 RH1612-013 TTL Cable 15 3375
34-20 RH1622-013 ST Cable 15 3375
34-20 DH1612-114 TTL Cable 275 4625
34-20 DH1622-114 ST Cable 275 462534-20 RH1612-014 TTL Cable 275 4625
34-20 RH1622-014 ST Cable 275 462534-20 DH1612-105 TTL Connector 15 3375
34-20 DH1622-105 ST Connector 15 3375
34-20 RH1612-005 TTL Connector 15 3375
34-20 RH1622-005 ST Connector 15 3375
34-20 DH1612-106 TTL Connector 275 4625
34-20 DH1622-106 ST Connector 275 4625
34-20 RH1612-006 TTL Connector 275 4625
34-20 RH1622-006 ST Connector 275 4625
34-20 DH1612-107 TTL Connector 4 6512
34-20 DH1622-107 ST Connector 4 6512
34-20 RH1612-007 TTL Connector 4 6512
34-20 RH1622-007 ST Connector 4 6512
34-20 DH1612-109 TTL Wires 15 3375
34-20 DH1622-109 ST Wires 15 3375
34-20 RH1612-009 TTL Wires 15 3375
34-20 RH1622-009 ST Wires 15 3375
34-20 DH1612-110 TTL Wires 275 4625
34-20 DH1622-110 ST Wires 275 4625
34-20 RH1612-010 TTL Wires 275 4625
34-20 RH1622-010 ST Wires 275 4625
34-20 RH1612-025 TTL Cable 1375 475 X
34-20 RH1612-026 TTL Cable 15 3375 X
34-20 RH1622-026 ST Cable 15 3375 X
34-20 RH1612-027 TTL Cable 275 4625 X
34-20 RH1622-027 ST Cable 275 4625 X
Active Sensor Selection Guide
RH amp DH Series
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Active Sensor Selection Guide
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
58-18 DH1512-113 TTL Cable 15 3375
58-18 DH1522-113 ST Cable 15 3375
58-18 RH1512-013 TTL Cable 15 3375
58-18 RH1522-013 ST Cable 15 3375
58-18 DH1512-114 TTL Cable 275 4625
58-18 DH1522-114 ST Cable 275 4625
58-18 RH1512-014 TTL Cable 275 4625
58-18 RH1522-014 ST Cable 275 4625
58-18 DH1512-105 TTL Connector 15 3375
58-18 DH1522-105 ST Connector 15 3375
58-18 RH1512-005 TTL Connector 15 3375
58-18 RH1522-005 ST Connector 15 3375
58-18 DH1512-106 TTL Connector 275 4625
58-18 DH1522-106 ST Connector 275 4625
58-18 RH1512-006 TTL Connector 275 4625
58-18 RH1522-006 ST Connector 275 4625
58-18 DH1512-107 TTL Connector 4 6512
58-18 DH1522-107 ST Connector 4 6512
58-18 RH1512-007 TTL Connector 4 6512
58-18 RH1522-007 ST Connector 4 6512
58-18 DH1512-109 TTL Cable 15 3375
58-18 DH1522-109 ST Cable 15 3375
58-18 RH1512-009 TTL Cable 15 3375
58-18 RH1522-009 ST Cable 15 3375
58-18 DH1512-110 TTL Cable 275 4625
58-18 DH1522-110 ST Cable 275 4625
58-18 RH1512-010 TTL Cable 275 4625
58-18 RH1522-010 ST Cable 275 4625
58-18 RH1512-026 TTL Cable 15 3375 X
58-18 RH1522-026 ST Cable 15 3375 X
58-18 RH1512-027 TTL Cable 275 4625 X
58-18 RH1522-027 ST Cable 275 4625 X
58-18 DH1512-210 ST Cable 275 275
58-18 DH1522-210 ST Cable 275 275
38-32 RH1320-001 ST Wires 163 163
38-32 RH1320-003 ST Cable 163 163
38-24 RH1320-009 ST Wires 163 163
38-24 RH1320-010 ST Cable 163 163
38-24 RH1320-012 ST Cable 3 3
38 Dia RH1320-005 ST Wires
38 Dia RH1320-006 ST Cable
NOTE RTD Temperature Sensing Feature
_ _
_ _
RH amp DH Series
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Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +46 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage
-30 Vdc
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap005 to 020 with a 24 diametral pitch gear005 to 030 with a 20 diametral pitch gear005 to 050 with a 12 diametral pitch gear005 to 075 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B 5NaCl for 48 hrs No visible corrosion
Humidity92 RH 40degC for 90 hrsNo visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 20 Irradiated cross-linked polyolefin
125degC
Rotational alignment of sensing face is notrequired for optimum output signal
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Note Either output will work with any AI-Tek Tachometer
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RH Series
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INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
RH1512-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-014 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-014 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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750-20 UNEF-2A
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
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RH Series
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
RH1512-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1522-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1512-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
RH1522-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1512-007 625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1522-007 625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
RH1612-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1622-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1612-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
RH1622-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1612-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1622-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) Supply Tracking
Net Weight 7 oz max
Fully Threaded with Leads
Part Num Thread A Dimension Lead Length Output
RH1512-009 625-18 UNF-2A 1500 (38100) 12(304) TTL Compatible
RH1522-009 625-18 UNF-2A 1500 (38100) 12(304) Supply Tracking
RH1512-010 625-18 UNF-2A 2750 (69850) 12(304) TTL Compatible
RH1522-010 625-18 UNF-2A 2750 (69850) 12(304) Supply Tracking
RH1612-009 750-20 UNEF-2A 1500 (38100) 12(304) TTL Compatible
RH1622-009 750-20 UNEF-2A 1500 (38100) 12(304) Supply Tracking
RH1612-010 750-20 UNEF-2A 2750 (69850) 12(304) TTL Compatible
RH1622-010 750-20 UNEF-2A 2750 (69850) 12(304) Supply Tracking
Net Weight 3 oz max Dimensions in inches and (mm)
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
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Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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RH Series
1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
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DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
40
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
46
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
50
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 8: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/8.jpg)
Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-001 1125 (2857)70085-1010-003 2625 (6667)70085-1010-018 3625 (9207)70085-1010-118 5000 (12700)(Select cable from group ldquoArdquo see index)
SpecificationsOutput Voltage (Standard) 40 V (P-P)Output Voltage (Guarantee Point) 34 V (P-P)DC Resistance 130 ohms maxTypical Inductance 33 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -55 to +107degCNet Weight 5 oz max
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-002 1125 (2857)70085-1010-175 2625 (6667)70085-1010-026 3625 (9207)70085-1010-408 5000 (12700)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 150 V (P-P)Output Voltage (Guarantee Point)129 V (P-P)DC Resistance 1500 ohms maxTypical Inductance 360 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -55 to +107degCNet Weight 5 oz max
Performance Curves
General Purpose
High Sensitivity
Based on 20 DP Gear
Based on 20 DP Gear
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Passive Speed Sensors
Dimensions in inches and (mm)
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-004 1125 (2857)70085-1010-469 2750 (6985)
Performance Curves
SpecificationsOutput Voltage (Standard) 43 V (P-P)Output Voltage (Guarantee Point) 43 V (P-P)DC Resistance 130 ohms maxTypical Inductance 32-46 mH refOutput Polarity Red lead positiveOperating Temperature -73 to +107degCLead length 10 ft (305 m)Net Weight 16 oz max
Ordering Part Thread Length (A)70085-1010-028 1437 (3650)(Select cable from group ldquoArdquo see index)
Power Output
Performance Curves
SpecificationsOutput Voltage (Standard) 75 V (P-P)Output Voltage (Guarantee Point) 215 V (P-P)DC Resistance 210 ohms maxTypical Inductance 50 to 95 mH refOutput Polarity Pin B positiveOperating Temperature -73 to +107deg CNet Weight 22 oz max
Conduit Fitting ndash General Purpose
Based on 8 DP Gear
Based on 20 DP Gear
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-07870085-1010-137
Performance Curves
SpecificationsOutput Voltage (Standard) 40 V (P-P)Output Voltage (Guarantee Point) 34 V (P-P)DC Resistance 130 ohms maxTypical Inductance 33 mH refOutput Polarity white lead positiveOperating Temperature -55 to +107degCLead Length -078 12 in (305 cm)
-137 24 in (609 cm)Net Weight 3 oz max
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-13170085-1010-214
SpecificationsOutput Voltage (Standard) 120 V (P-P)Output Voltage (Guarantee Point)151 V (P-P)
Typical Inductance 40-60 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107deg CCable Length 10 ft (305 m)Net Weight 5 oz max
Full Thread ndash Power Output
Performance Curves
Full Thread ndash General Purpose
Based on 8 DP Gear
Based on 20 DP Gear
180 (4572)(7772)
DC Resistance 250 ohms max
180306
(4572)(7772)
306
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Passive Speed Sensors
Dimensions in inches and (mm)
Full Thread ndash High Sensitivity
Ordering Part Thread Length (A)70085-8080-00370085-1010-220
Performance Curves
Molded ndash High Sensitivity
Ordering Part Thread Length (A)70084-1713-111 1125 (2857)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 190 V (P-P)Output Voltage (Guarantee Point) 139 V (P-P)DC Resistance 1200 ohms maxTypical Inductance 400 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -40 to +150deg CNet Weight 2 oz max
SpecificationsOutput Voltage (Standard) 150 V (P-P)Output Voltage (Guarantee Point) 128 V (P-P)
Typical Inductance 500 mH refOutput Polarity White lead positiveOperating Temperature -55 to + 107degCLead Length -003 12 in (305 cm)
-220 36 in (914 cm)Net Weight 3 oz max
6251588
58 ndash 18 FAMILY
Based on 20 DP Gear
Based on 20 DP Gear
180306
(4572)(7772)
DC Resistance 1430 ohms max
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Passive Speed Sensors
Molded
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-421 2475 (6287)70085-1010-425 3000 (7620)70085-1010-424 4493 (11412)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 63 V (P-P)Output Voltage (Guarantee Point) 49V (P-P)DC Resistance 250 ohms maxTypical Inductance 63 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -55 to +107deg CNet Weight 5 oz max
M16 x 15 Thd
Dimensions in inches and (mm)
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Passive Speed Sensors
Dimensions in inches and (mm)
General Purpose
Ordering Part Thread Length (A)70085-1010-007 812 (2062)70085-1010-056
Ordering Part Thread Length (A)70085-1010-086 812 (2062)70085-1010-355 812 (2062)
Performance Curves
High Sensitivity
38 ndash 24 FAMILY
SpecificationsOutput Voltage (Standard) 21 V (P-P)Output Voltage (Guarantee Point) 16 V (P-P)
Typical Inductance 22 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 6 in (152 cm)Net Weight 2 oz max
SpecificationsOutput Voltage (Standard) 55 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length -086 18 in (457 cm)Cable Length -355 40 in (1016 cm)Net Weight 2 oz max
Performance Curves
Based on 20 DP Gear
Based on 20 DP Gear
3625 (9208)
DC Resistance 125 ohms max
DC Resistance 960 ohms maxOutput Voltage (Guarantee Point) 42V (P-P)
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Passive Speed Sensors
Dimensions in inches and (mm)
38 ndash 24 FAMILY
General Purpose ndash High Temperature
Ordering Part Thread Length (A)70085-1010-041 812 (2062)70085-1010-428 1500 (3810)70085-1010-458
Performance Curves
SpecificationsOutput Voltage (Standard) 24 V (P-P)Output Voltage (Guarantee Point) 20 V (P-P)
Typical Inductance 21 mH refOutput Polarity White lead positiveOperating Temperature -73 to +232degCLead Length 40 in (1 m)Net Weight 2 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Ordering Part Thread Length (A)70085-1010-174 812 (2062)
Performance Curves
High Sensitivity - High Temperature
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 36V (P-P)
Output Polarity White lead positiveOperating Temperature -65 to +220degCCable Length 60 in (15 m)Net Weight 2 oz max
3625 (9208)
DC Resistance 125 ohms max
DC Resistance 705 ohms maxTypical Inductance 150 mH ref
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)
70085-8080-001 1500 (3810)
Full Thread ndash High Sensitivity
Smooth Body ndash High Sensitivity
Ordering Part 70085-1010-314 1375 (3493)70085-8080-004 2500 (6350)
Performance Curves
Performance Curves
38 ndash 24 FAMILY
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -55 to + 107degCLead Length 6 in (152cm)Net Weight 1 oz max
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -30 to +85degCLead Length -004 6 in (152cm)Cable Length -314 10ft (305m)Net Weight 3 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Length (A)
70085-1010-120 1250 (3175)
DC Resistance 960 ohms max
DC Resistance 960 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)
Performance Curves
Ordering Part Thread Length (A) (B)70085-1010-024 687 (1745) 313 (795)70085-1010-472 687 (1745) 500 (1270)70085-1010-227 1687 (4285) 313 (795)
SpecificationsOutput Voltage (Standard) 47 V (P-P)Output Voltage (Guarantee Point) 04 V (P-P)DC Resistance 125 ohms maxTypical Inductance 5-12 mH refOutput Polarity White lead positiveOperating Temperature -73 to 232degCLead Length 8 in (203 cm)Cable Length -472 60 in (15 m)Net Weight 2 oz max
B as ed on 20 DP G ear
and cable for extra protection Extra locknut provided
General Purpose - High Temperature
14 - 40 FAMILY
Egress is a 2-conductor AWG 26 shielded Teflon cable with 3 long shrink tubing over housing
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-037 500 (1270)70085-1010-299 1250 (3175)
Performance Curves
General Purpose ndash High Temperature
SpecificationsOutput Voltage (Standard) 13 V (P-P)Output Voltage (Guarantee Point) 6 V (P-P)DC Resistance 190 ohms maxTypical Inductance 10 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 18 in (457 cm)Net Weight 1 oz max
10 - 32 FAMILY
High Sensitivity
Ordering Part Thread Length (A)70085-1010-182 500 (1270)70085-1010-289 1250 (3175)
Performance Curves
SpecificationsOutput Voltage (Standard) 6 V (P-P)Output Voltage (Guarantee Point) 3 V (P-P)
Typical Inductance 2 mH refOutput Polarity White lead positiveOperating Temperature -73 to +150degCLead Length 18 in (457 cm)Net Weight 1 oz max
Based on 20 DP Gear
Based on 20 DP Gear
DC Resistance 50 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)Based on 8 DP Gear
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-413 1500 (3810)70085-1010-005 1875 (4763)70085-1010-327 2750 (6985)70085-1010-328 4000 (10160)70085-1010-414 6000 (15240)
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positiveOperating Temperature -65 to +95degCLead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1Groups E F G Temp Code T3C
Ordering Part Thread Length (A)70085-1010-081 1500 (3810)70085-1010-411 1875 (4763)70085-1010-329 2750 (6985)70085-1010-330 4000 (10160)70085-1010-412 6000 (15240)
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Lead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Based on 8 DP Gear
Groups E F G Temp Code T3C
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ULATEXCSA Sensors The products on pgs 18-20 are capable of up to a SIL 3 rating
ULATEXCSA Sensors
ATEX Group II Category 3G Zone 2
ATEX Group II Category 3G Zone 2
18
Operating Temperature -65 to 95degC
Passive Speed Sensors
Dimensions in inches and (mm)
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-403 1500 (3810)
70085-1010-405 2750
70085-1010-415 4000 (10160)70085-1010-416 6000 (15240)
Performance Curves
SpecificationsOutput Voltage (Standard) 90 V (P-P)Output Voltage (Guarantee Point) 94 V (P-P)DC Resistance 660 ohms maxTypical Inductance 210 mH maxOutput Polarity White lead positiveOperating Temperature -55 to +220deg CMounting Thread -0405 34 - 20 UNEF-2ACable Length 15 ft (457 m)Net Weight 16 oz max
Ordering Part Thread Length (A)70085-1010-404 1500 (3810)
70085-1010-406 2750 (6985)70085-1010-417 4000 (10160)70085-1010-420 6000 (15240)
SpecificationsOutput Voltage (Standard) 60V (P-P)Output Voltage (Guarantee Point) 134V (P-P)DC Resistance 210 ohms maxTypical Inductance 75 mH maxOutput Polarity White lead positiveOperating Temperature -20 to +220degCCable Length 15 ft (457m)Net Weight 16 oz max
Performance Curves
Based on 20 DP Gear
Based on 8 DP Gear
THREAD SIZE
FM ATEX Sensors
THREAD SIZE(6985)
58-18 UNF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
2750 (6985) 4000 (10160) 6000 (15240)
58-18 UNF-2A70085-1010-544 1875 (4763)
70085-1010-541 1875 (4763) 34-20 UNEF-2A70085-1010-542 34-20 UNEF-2A70085-1010-540 34-20 UNEF-2A70085-1010-543 34-20 UNEF-2A
34-20 UNEF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
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Thread Size (B)
Thread Size (B)
19
FM ATEX Sensors
Passive Speed Sensors LISTED PRODUCT
Performance Curves
Based on 8 DP Gear
IEC EX Sensors
Rating ATEX and IEC Ex Equip Group II Category 2G Gas Group IIC Zone 1Sensor must be used with MTL 7764ac intrinsic barrierUser must install sensor in such a manner as to limit the output voltage to lessthan 12V Pk-Pk and a total energy of less than 26 microjoules
Available in a range of inch and metric thread lengths and sizes and cable lengths of 3 or 10 meters Consult factory for additional details
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Ordering Part Thread Length (A) Thread Size (B) Cable Length (C) Conduit Thread
70085-3030-111 1500 (3810) 58-18 UNF-2A 3 m 12 NPT70085-3030-112 2750 (6885) 58-18 UNF-2A 3 m 12 NPT70085-3030-113 4000 (1016) 58-18 UNF-2A 3 m 12 NPT70085-3030-114 6000 (1524) 58-18 UNF-2A 3 m 12 NPT70085-3030-211 1500 (3810) 58-18 UNF-2A 12 NPT70085-3030-212 2750 (6885) 58-18 UNF-2A 12 NPT70085-3030-213 4000 (1016) 58-18 UNF-2A 12 NPT70085-3030-214 6000 (1524) 58-18 UNF-2A 12 NPT70085-3030-222 2750 (6885) 12 NPT70085-3030-235 1575 (4000) M16 x 15 6g 10 m G 1270085-3030-237 3937 (1000) M16 x 15 6g 10 m G 12
THREAD SIZE
20
10 m10 m10 m10 m10 m34-20 UNEF-2A
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Net Weight 14 oz maxOperating Temperature -65 to 95degC
The defined SIL capability is based on the end users safety system architecture and defined diagnostics as outlined in IEC 61508 and IEC 61511 for sensors Single channel devise is insufficient to determine zero speed as part ofthe safety function Consult the factory for additional details (Pages 18-20)
KEY FEATURESCapable of up to a SIL 3 Rating PFH 610 E-09 1h
PFD AVG (T1=20 Years) 535 E-04 DC 90 SFF 91
ApplicationUsed for Speed Take Off
The Side Look Sensor (SLS) has been developed byAI-Tek Instruments for Allison automatic transmis-sions for trucks ranging from light duty vans to over-the-road tractors It is available for Allison AT MTand HT transmissions The new SLS improves onearlier designs developed for Allison to replace amechanical speed system
The SLS is a variable reluctance device that pro-vides electronic transmission speed inputs toengine control systems andor electronic dash-boards It mounts directly on the transmission andemploys a unique magnet configuration thatinduces a magnetic field on the side of the sensorin the path of the rotating transmission gear Thissystem with its fewer mounting parts improvesreliability reduces weight and conserves spaceover the earlier designs
AI-Tek Instruments LLCSide Look Sensor
The new SLS uses a molded glass filled nylon bodyto protect the sensor in harsh truck-operatingenvironments It replaces the old fly-lead designwith an integral standard Packard connectorwhich eliminates the added extra connector cost ofthe old design It is available in single and dualoutput versions
The SLS is manufactured in the United StatesAI-Tek Instruments Distributors stock the SLS foroff-the-shelf maintenance repair and overhaul(MRO) requirements
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188
CONNECTOR MATES WITHPACKARD 12162188
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Outline and Mounting Dimensions
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Specifications
PN 70082-1000-021 AT MT
PN 70082-1000-022 AT MT
PN 70082-1000-023 HT
PN 70082-1000-024 HT
Applications
22
Hall Effect Sensors
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for engine timing applications and has developed a line of durable products for
industrial use
With multiple standard variations we offer the widest range of standard catalog
sensors to meet your various design needs The design is flexible to easily meet all
of your application requirements
The Hall Effect sensor can sense each change in target movement regardless of speed
from near zero to 15 kHz frequency range generating a steady pulse train of frequency
proportional to target speed Typically each time a gear tooth (or any ferrous discontinuity)
passes in front of the sensor the output changes state This type of sensor is known as a P
type because it uses N-P-N transistor logic (as opposed to N type which uses P-N-P
transistor logic)
Key features to note are
bull Reverse voltage protection to prevent damage if miswired
bull Extended temperature range
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
AI-Tek has (3) Series of Hall Effect Sensors RH Series DH Series and BH Series
Below is a quick reference chart of the features of each of the series
It is the customers responsibility to determine whether the product is proper for customers use and application
PERFORMANCE RH SERIES DH SERIES BH SERIES1 Output Channel 1 Output Channel 2 Output Channels
+ Direction
Zero speed to 15kHz operation X X X
Standard gear tooth sensing X X X
Fine 32 DP Capability X X
Single tooth valley target X X
No installation alignment X
Extended airgap
(0100rdquo+ for 12DP and coarser targets) X X
General noise immunity X X X
EMI Hardened X X
High tolerance to target run-out X X
Self-calibrating X X
Direction Sensing X
Lowest cost X
23
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Distance Amplifier)For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
34-20 DH1612-113 TTL Cable 15 3375
34-20 DH1622-113 ST Cable 15 3375
34-20 RH1612-013 TTL Cable 15 3375
34-20 RH1622-013 ST Cable 15 3375
34-20 DH1612-114 TTL Cable 275 4625
34-20 DH1622-114 ST Cable 275 462534-20 RH1612-014 TTL Cable 275 4625
34-20 RH1622-014 ST Cable 275 462534-20 DH1612-105 TTL Connector 15 3375
34-20 DH1622-105 ST Connector 15 3375
34-20 RH1612-005 TTL Connector 15 3375
34-20 RH1622-005 ST Connector 15 3375
34-20 DH1612-106 TTL Connector 275 4625
34-20 DH1622-106 ST Connector 275 4625
34-20 RH1612-006 TTL Connector 275 4625
34-20 RH1622-006 ST Connector 275 4625
34-20 DH1612-107 TTL Connector 4 6512
34-20 DH1622-107 ST Connector 4 6512
34-20 RH1612-007 TTL Connector 4 6512
34-20 RH1622-007 ST Connector 4 6512
34-20 DH1612-109 TTL Wires 15 3375
34-20 DH1622-109 ST Wires 15 3375
34-20 RH1612-009 TTL Wires 15 3375
34-20 RH1622-009 ST Wires 15 3375
34-20 DH1612-110 TTL Wires 275 4625
34-20 DH1622-110 ST Wires 275 4625
34-20 RH1612-010 TTL Wires 275 4625
34-20 RH1622-010 ST Wires 275 4625
34-20 RH1612-025 TTL Cable 1375 475 X
34-20 RH1612-026 TTL Cable 15 3375 X
34-20 RH1622-026 ST Cable 15 3375 X
34-20 RH1612-027 TTL Cable 275 4625 X
34-20 RH1622-027 ST Cable 275 4625 X
Active Sensor Selection Guide
RH amp DH Series
24
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28
283535
28
283535
28
283535
28
283535
282929292929
Active Sensor Selection Guide
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
58-18 DH1512-113 TTL Cable 15 3375
58-18 DH1522-113 ST Cable 15 3375
58-18 RH1512-013 TTL Cable 15 3375
58-18 RH1522-013 ST Cable 15 3375
58-18 DH1512-114 TTL Cable 275 4625
58-18 DH1522-114 ST Cable 275 4625
58-18 RH1512-014 TTL Cable 275 4625
58-18 RH1522-014 ST Cable 275 4625
58-18 DH1512-105 TTL Connector 15 3375
58-18 DH1522-105 ST Connector 15 3375
58-18 RH1512-005 TTL Connector 15 3375
58-18 RH1522-005 ST Connector 15 3375
58-18 DH1512-106 TTL Connector 275 4625
58-18 DH1522-106 ST Connector 275 4625
58-18 RH1512-006 TTL Connector 275 4625
58-18 RH1522-006 ST Connector 275 4625
58-18 DH1512-107 TTL Connector 4 6512
58-18 DH1522-107 ST Connector 4 6512
58-18 RH1512-007 TTL Connector 4 6512
58-18 RH1522-007 ST Connector 4 6512
58-18 DH1512-109 TTL Cable 15 3375
58-18 DH1522-109 ST Cable 15 3375
58-18 RH1512-009 TTL Cable 15 3375
58-18 RH1522-009 ST Cable 15 3375
58-18 DH1512-110 TTL Cable 275 4625
58-18 DH1522-110 ST Cable 275 4625
58-18 RH1512-010 TTL Cable 275 4625
58-18 RH1522-010 ST Cable 275 4625
58-18 RH1512-026 TTL Cable 15 3375 X
58-18 RH1522-026 ST Cable 15 3375 X
58-18 RH1512-027 TTL Cable 275 4625 X
58-18 RH1522-027 ST Cable 275 4625 X
58-18 DH1512-210 ST Cable 275 275
58-18 DH1522-210 ST Cable 275 275
38-32 RH1320-001 ST Wires 163 163
38-32 RH1320-003 ST Cable 163 163
38-24 RH1320-009 ST Wires 163 163
38-24 RH1320-010 ST Cable 163 163
38-24 RH1320-012 ST Cable 3 3
38 Dia RH1320-005 ST Wires
38 Dia RH1320-006 ST Cable
NOTE RTD Temperature Sensing Feature
_ _
_ _
RH amp DH Series
25
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27273434
27273434
283535
28
283535
28
283535
28
283535
28
283535
2829292929363631313131313131
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +46 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage
-30 Vdc
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap005 to 020 with a 24 diametral pitch gear005 to 030 with a 20 diametral pitch gear005 to 050 with a 12 diametral pitch gear005 to 075 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B 5NaCl for 48 hrs No visible corrosion
Humidity92 RH 40degC for 90 hrsNo visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 20 Irradiated cross-linked polyolefin
125degC
Rotational alignment of sensing face is notrequired for optimum output signal
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Note Either output will work with any AI-Tek Tachometer
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RH Series
26
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
RH1512-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-014 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-014 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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750-20 UNEF-2A
750-20 UNEF-2A
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
27
RH Series
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
RH1512-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1522-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1512-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
RH1522-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1512-007 625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1522-007 625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
RH1612-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1622-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1612-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
RH1622-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1612-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1622-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) Supply Tracking
Net Weight 7 oz max
Fully Threaded with Leads
Part Num Thread A Dimension Lead Length Output
RH1512-009 625-18 UNF-2A 1500 (38100) 12(304) TTL Compatible
RH1522-009 625-18 UNF-2A 1500 (38100) 12(304) Supply Tracking
RH1512-010 625-18 UNF-2A 2750 (69850) 12(304) TTL Compatible
RH1522-010 625-18 UNF-2A 2750 (69850) 12(304) Supply Tracking
RH1612-009 750-20 UNEF-2A 1500 (38100) 12(304) TTL Compatible
RH1622-009 750-20 UNEF-2A 1500 (38100) 12(304) Supply Tracking
RH1612-010 750-20 UNEF-2A 2750 (69850) 12(304) TTL Compatible
RH1622-010 750-20 UNEF-2A 2750 (69850) 12(304) Supply Tracking
Net Weight 3 oz max Dimensions in inches and (mm)
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28
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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ARH Series
29
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
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RH Series
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Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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Dim A
Dimension A
1630
RH Series
1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
31
DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
38
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
AI-
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Ins
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
40
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
44
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
C
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C
TU
SA
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 9: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/9.jpg)
Passive Speed Sensors
Dimensions in inches and (mm)
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-004 1125 (2857)70085-1010-469 2750 (6985)
Performance Curves
SpecificationsOutput Voltage (Standard) 43 V (P-P)Output Voltage (Guarantee Point) 43 V (P-P)DC Resistance 130 ohms maxTypical Inductance 32-46 mH refOutput Polarity Red lead positiveOperating Temperature -73 to +107degCLead length 10 ft (305 m)Net Weight 16 oz max
Ordering Part Thread Length (A)70085-1010-028 1437 (3650)(Select cable from group ldquoArdquo see index)
Power Output
Performance Curves
SpecificationsOutput Voltage (Standard) 75 V (P-P)Output Voltage (Guarantee Point) 215 V (P-P)DC Resistance 210 ohms maxTypical Inductance 50 to 95 mH refOutput Polarity Pin B positiveOperating Temperature -73 to +107deg CNet Weight 22 oz max
Conduit Fitting ndash General Purpose
Based on 8 DP Gear
Based on 20 DP Gear
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9
Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-07870085-1010-137
Performance Curves
SpecificationsOutput Voltage (Standard) 40 V (P-P)Output Voltage (Guarantee Point) 34 V (P-P)DC Resistance 130 ohms maxTypical Inductance 33 mH refOutput Polarity white lead positiveOperating Temperature -55 to +107degCLead Length -078 12 in (305 cm)
-137 24 in (609 cm)Net Weight 3 oz max
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-13170085-1010-214
SpecificationsOutput Voltage (Standard) 120 V (P-P)Output Voltage (Guarantee Point)151 V (P-P)
Typical Inductance 40-60 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107deg CCable Length 10 ft (305 m)Net Weight 5 oz max
Full Thread ndash Power Output
Performance Curves
Full Thread ndash General Purpose
Based on 8 DP Gear
Based on 20 DP Gear
180 (4572)(7772)
DC Resistance 250 ohms max
180306
(4572)(7772)
306
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10
Passive Speed Sensors
Dimensions in inches and (mm)
Full Thread ndash High Sensitivity
Ordering Part Thread Length (A)70085-8080-00370085-1010-220
Performance Curves
Molded ndash High Sensitivity
Ordering Part Thread Length (A)70084-1713-111 1125 (2857)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 190 V (P-P)Output Voltage (Guarantee Point) 139 V (P-P)DC Resistance 1200 ohms maxTypical Inductance 400 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -40 to +150deg CNet Weight 2 oz max
SpecificationsOutput Voltage (Standard) 150 V (P-P)Output Voltage (Guarantee Point) 128 V (P-P)
Typical Inductance 500 mH refOutput Polarity White lead positiveOperating Temperature -55 to + 107degCLead Length -003 12 in (305 cm)
-220 36 in (914 cm)Net Weight 3 oz max
6251588
58 ndash 18 FAMILY
Based on 20 DP Gear
Based on 20 DP Gear
180306
(4572)(7772)
DC Resistance 1430 ohms max
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11
Passive Speed Sensors
Molded
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-421 2475 (6287)70085-1010-425 3000 (7620)70085-1010-424 4493 (11412)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 63 V (P-P)Output Voltage (Guarantee Point) 49V (P-P)DC Resistance 250 ohms maxTypical Inductance 63 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -55 to +107deg CNet Weight 5 oz max
M16 x 15 Thd
Dimensions in inches and (mm)
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Passive Speed Sensors
Dimensions in inches and (mm)
General Purpose
Ordering Part Thread Length (A)70085-1010-007 812 (2062)70085-1010-056
Ordering Part Thread Length (A)70085-1010-086 812 (2062)70085-1010-355 812 (2062)
Performance Curves
High Sensitivity
38 ndash 24 FAMILY
SpecificationsOutput Voltage (Standard) 21 V (P-P)Output Voltage (Guarantee Point) 16 V (P-P)
Typical Inductance 22 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 6 in (152 cm)Net Weight 2 oz max
SpecificationsOutput Voltage (Standard) 55 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length -086 18 in (457 cm)Cable Length -355 40 in (1016 cm)Net Weight 2 oz max
Performance Curves
Based on 20 DP Gear
Based on 20 DP Gear
3625 (9208)
DC Resistance 125 ohms max
DC Resistance 960 ohms maxOutput Voltage (Guarantee Point) 42V (P-P)
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Passive Speed Sensors
Dimensions in inches and (mm)
38 ndash 24 FAMILY
General Purpose ndash High Temperature
Ordering Part Thread Length (A)70085-1010-041 812 (2062)70085-1010-428 1500 (3810)70085-1010-458
Performance Curves
SpecificationsOutput Voltage (Standard) 24 V (P-P)Output Voltage (Guarantee Point) 20 V (P-P)
Typical Inductance 21 mH refOutput Polarity White lead positiveOperating Temperature -73 to +232degCLead Length 40 in (1 m)Net Weight 2 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Ordering Part Thread Length (A)70085-1010-174 812 (2062)
Performance Curves
High Sensitivity - High Temperature
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 36V (P-P)
Output Polarity White lead positiveOperating Temperature -65 to +220degCCable Length 60 in (15 m)Net Weight 2 oz max
3625 (9208)
DC Resistance 125 ohms max
DC Resistance 705 ohms maxTypical Inductance 150 mH ref
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)
70085-8080-001 1500 (3810)
Full Thread ndash High Sensitivity
Smooth Body ndash High Sensitivity
Ordering Part 70085-1010-314 1375 (3493)70085-8080-004 2500 (6350)
Performance Curves
Performance Curves
38 ndash 24 FAMILY
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -55 to + 107degCLead Length 6 in (152cm)Net Weight 1 oz max
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -30 to +85degCLead Length -004 6 in (152cm)Cable Length -314 10ft (305m)Net Weight 3 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Length (A)
70085-1010-120 1250 (3175)
DC Resistance 960 ohms max
DC Resistance 960 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)
Performance Curves
Ordering Part Thread Length (A) (B)70085-1010-024 687 (1745) 313 (795)70085-1010-472 687 (1745) 500 (1270)70085-1010-227 1687 (4285) 313 (795)
SpecificationsOutput Voltage (Standard) 47 V (P-P)Output Voltage (Guarantee Point) 04 V (P-P)DC Resistance 125 ohms maxTypical Inductance 5-12 mH refOutput Polarity White lead positiveOperating Temperature -73 to 232degCLead Length 8 in (203 cm)Cable Length -472 60 in (15 m)Net Weight 2 oz max
B as ed on 20 DP G ear
and cable for extra protection Extra locknut provided
General Purpose - High Temperature
14 - 40 FAMILY
Egress is a 2-conductor AWG 26 shielded Teflon cable with 3 long shrink tubing over housing
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-037 500 (1270)70085-1010-299 1250 (3175)
Performance Curves
General Purpose ndash High Temperature
SpecificationsOutput Voltage (Standard) 13 V (P-P)Output Voltage (Guarantee Point) 6 V (P-P)DC Resistance 190 ohms maxTypical Inductance 10 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 18 in (457 cm)Net Weight 1 oz max
10 - 32 FAMILY
High Sensitivity
Ordering Part Thread Length (A)70085-1010-182 500 (1270)70085-1010-289 1250 (3175)
Performance Curves
SpecificationsOutput Voltage (Standard) 6 V (P-P)Output Voltage (Guarantee Point) 3 V (P-P)
Typical Inductance 2 mH refOutput Polarity White lead positiveOperating Temperature -73 to +150degCLead Length 18 in (457 cm)Net Weight 1 oz max
Based on 20 DP Gear
Based on 20 DP Gear
DC Resistance 50 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)Based on 8 DP Gear
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-413 1500 (3810)70085-1010-005 1875 (4763)70085-1010-327 2750 (6985)70085-1010-328 4000 (10160)70085-1010-414 6000 (15240)
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positiveOperating Temperature -65 to +95degCLead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1Groups E F G Temp Code T3C
Ordering Part Thread Length (A)70085-1010-081 1500 (3810)70085-1010-411 1875 (4763)70085-1010-329 2750 (6985)70085-1010-330 4000 (10160)70085-1010-412 6000 (15240)
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Lead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Based on 8 DP Gear
Groups E F G Temp Code T3C
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ULATEXCSA Sensors The products on pgs 18-20 are capable of up to a SIL 3 rating
ULATEXCSA Sensors
ATEX Group II Category 3G Zone 2
ATEX Group II Category 3G Zone 2
18
Operating Temperature -65 to 95degC
Passive Speed Sensors
Dimensions in inches and (mm)
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-403 1500 (3810)
70085-1010-405 2750
70085-1010-415 4000 (10160)70085-1010-416 6000 (15240)
Performance Curves
SpecificationsOutput Voltage (Standard) 90 V (P-P)Output Voltage (Guarantee Point) 94 V (P-P)DC Resistance 660 ohms maxTypical Inductance 210 mH maxOutput Polarity White lead positiveOperating Temperature -55 to +220deg CMounting Thread -0405 34 - 20 UNEF-2ACable Length 15 ft (457 m)Net Weight 16 oz max
Ordering Part Thread Length (A)70085-1010-404 1500 (3810)
70085-1010-406 2750 (6985)70085-1010-417 4000 (10160)70085-1010-420 6000 (15240)
SpecificationsOutput Voltage (Standard) 60V (P-P)Output Voltage (Guarantee Point) 134V (P-P)DC Resistance 210 ohms maxTypical Inductance 75 mH maxOutput Polarity White lead positiveOperating Temperature -20 to +220degCCable Length 15 ft (457m)Net Weight 16 oz max
Performance Curves
Based on 20 DP Gear
Based on 8 DP Gear
THREAD SIZE
FM ATEX Sensors
THREAD SIZE(6985)
58-18 UNF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
2750 (6985) 4000 (10160) 6000 (15240)
58-18 UNF-2A70085-1010-544 1875 (4763)
70085-1010-541 1875 (4763) 34-20 UNEF-2A70085-1010-542 34-20 UNEF-2A70085-1010-540 34-20 UNEF-2A70085-1010-543 34-20 UNEF-2A
34-20 UNEF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
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Thread Size (B)
Thread Size (B)
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FM ATEX Sensors
Passive Speed Sensors LISTED PRODUCT
Performance Curves
Based on 8 DP Gear
IEC EX Sensors
Rating ATEX and IEC Ex Equip Group II Category 2G Gas Group IIC Zone 1Sensor must be used with MTL 7764ac intrinsic barrierUser must install sensor in such a manner as to limit the output voltage to lessthan 12V Pk-Pk and a total energy of less than 26 microjoules
Available in a range of inch and metric thread lengths and sizes and cable lengths of 3 or 10 meters Consult factory for additional details
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Ordering Part Thread Length (A) Thread Size (B) Cable Length (C) Conduit Thread
70085-3030-111 1500 (3810) 58-18 UNF-2A 3 m 12 NPT70085-3030-112 2750 (6885) 58-18 UNF-2A 3 m 12 NPT70085-3030-113 4000 (1016) 58-18 UNF-2A 3 m 12 NPT70085-3030-114 6000 (1524) 58-18 UNF-2A 3 m 12 NPT70085-3030-211 1500 (3810) 58-18 UNF-2A 12 NPT70085-3030-212 2750 (6885) 58-18 UNF-2A 12 NPT70085-3030-213 4000 (1016) 58-18 UNF-2A 12 NPT70085-3030-214 6000 (1524) 58-18 UNF-2A 12 NPT70085-3030-222 2750 (6885) 12 NPT70085-3030-235 1575 (4000) M16 x 15 6g 10 m G 1270085-3030-237 3937 (1000) M16 x 15 6g 10 m G 12
THREAD SIZE
20
10 m10 m10 m10 m10 m34-20 UNEF-2A
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Net Weight 14 oz maxOperating Temperature -65 to 95degC
The defined SIL capability is based on the end users safety system architecture and defined diagnostics as outlined in IEC 61508 and IEC 61511 for sensors Single channel devise is insufficient to determine zero speed as part ofthe safety function Consult the factory for additional details (Pages 18-20)
KEY FEATURESCapable of up to a SIL 3 Rating PFH 610 E-09 1h
PFD AVG (T1=20 Years) 535 E-04 DC 90 SFF 91
ApplicationUsed for Speed Take Off
The Side Look Sensor (SLS) has been developed byAI-Tek Instruments for Allison automatic transmis-sions for trucks ranging from light duty vans to over-the-road tractors It is available for Allison AT MTand HT transmissions The new SLS improves onearlier designs developed for Allison to replace amechanical speed system
The SLS is a variable reluctance device that pro-vides electronic transmission speed inputs toengine control systems andor electronic dash-boards It mounts directly on the transmission andemploys a unique magnet configuration thatinduces a magnetic field on the side of the sensorin the path of the rotating transmission gear Thissystem with its fewer mounting parts improvesreliability reduces weight and conserves spaceover the earlier designs
AI-Tek Instruments LLCSide Look Sensor
The new SLS uses a molded glass filled nylon bodyto protect the sensor in harsh truck-operatingenvironments It replaces the old fly-lead designwith an integral standard Packard connectorwhich eliminates the added extra connector cost ofthe old design It is available in single and dualoutput versions
The SLS is manufactured in the United StatesAI-Tek Instruments Distributors stock the SLS foroff-the-shelf maintenance repair and overhaul(MRO) requirements
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188
CONNECTOR MATES WITHPACKARD 12162188
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Outline and Mounting Dimensions
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Specifications
PN 70082-1000-021 AT MT
PN 70082-1000-022 AT MT
PN 70082-1000-023 HT
PN 70082-1000-024 HT
Applications
22
Hall Effect Sensors
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for engine timing applications and has developed a line of durable products for
industrial use
With multiple standard variations we offer the widest range of standard catalog
sensors to meet your various design needs The design is flexible to easily meet all
of your application requirements
The Hall Effect sensor can sense each change in target movement regardless of speed
from near zero to 15 kHz frequency range generating a steady pulse train of frequency
proportional to target speed Typically each time a gear tooth (or any ferrous discontinuity)
passes in front of the sensor the output changes state This type of sensor is known as a P
type because it uses N-P-N transistor logic (as opposed to N type which uses P-N-P
transistor logic)
Key features to note are
bull Reverse voltage protection to prevent damage if miswired
bull Extended temperature range
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
AI-Tek has (3) Series of Hall Effect Sensors RH Series DH Series and BH Series
Below is a quick reference chart of the features of each of the series
It is the customers responsibility to determine whether the product is proper for customers use and application
PERFORMANCE RH SERIES DH SERIES BH SERIES1 Output Channel 1 Output Channel 2 Output Channels
+ Direction
Zero speed to 15kHz operation X X X
Standard gear tooth sensing X X X
Fine 32 DP Capability X X
Single tooth valley target X X
No installation alignment X
Extended airgap
(0100rdquo+ for 12DP and coarser targets) X X
General noise immunity X X X
EMI Hardened X X
High tolerance to target run-out X X
Self-calibrating X X
Direction Sensing X
Lowest cost X
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Distance Amplifier)For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
34-20 DH1612-113 TTL Cable 15 3375
34-20 DH1622-113 ST Cable 15 3375
34-20 RH1612-013 TTL Cable 15 3375
34-20 RH1622-013 ST Cable 15 3375
34-20 DH1612-114 TTL Cable 275 4625
34-20 DH1622-114 ST Cable 275 462534-20 RH1612-014 TTL Cable 275 4625
34-20 RH1622-014 ST Cable 275 462534-20 DH1612-105 TTL Connector 15 3375
34-20 DH1622-105 ST Connector 15 3375
34-20 RH1612-005 TTL Connector 15 3375
34-20 RH1622-005 ST Connector 15 3375
34-20 DH1612-106 TTL Connector 275 4625
34-20 DH1622-106 ST Connector 275 4625
34-20 RH1612-006 TTL Connector 275 4625
34-20 RH1622-006 ST Connector 275 4625
34-20 DH1612-107 TTL Connector 4 6512
34-20 DH1622-107 ST Connector 4 6512
34-20 RH1612-007 TTL Connector 4 6512
34-20 RH1622-007 ST Connector 4 6512
34-20 DH1612-109 TTL Wires 15 3375
34-20 DH1622-109 ST Wires 15 3375
34-20 RH1612-009 TTL Wires 15 3375
34-20 RH1622-009 ST Wires 15 3375
34-20 DH1612-110 TTL Wires 275 4625
34-20 DH1622-110 ST Wires 275 4625
34-20 RH1612-010 TTL Wires 275 4625
34-20 RH1622-010 ST Wires 275 4625
34-20 RH1612-025 TTL Cable 1375 475 X
34-20 RH1612-026 TTL Cable 15 3375 X
34-20 RH1622-026 ST Cable 15 3375 X
34-20 RH1612-027 TTL Cable 275 4625 X
34-20 RH1622-027 ST Cable 275 4625 X
Active Sensor Selection Guide
RH amp DH Series
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Active Sensor Selection Guide
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
58-18 DH1512-113 TTL Cable 15 3375
58-18 DH1522-113 ST Cable 15 3375
58-18 RH1512-013 TTL Cable 15 3375
58-18 RH1522-013 ST Cable 15 3375
58-18 DH1512-114 TTL Cable 275 4625
58-18 DH1522-114 ST Cable 275 4625
58-18 RH1512-014 TTL Cable 275 4625
58-18 RH1522-014 ST Cable 275 4625
58-18 DH1512-105 TTL Connector 15 3375
58-18 DH1522-105 ST Connector 15 3375
58-18 RH1512-005 TTL Connector 15 3375
58-18 RH1522-005 ST Connector 15 3375
58-18 DH1512-106 TTL Connector 275 4625
58-18 DH1522-106 ST Connector 275 4625
58-18 RH1512-006 TTL Connector 275 4625
58-18 RH1522-006 ST Connector 275 4625
58-18 DH1512-107 TTL Connector 4 6512
58-18 DH1522-107 ST Connector 4 6512
58-18 RH1512-007 TTL Connector 4 6512
58-18 RH1522-007 ST Connector 4 6512
58-18 DH1512-109 TTL Cable 15 3375
58-18 DH1522-109 ST Cable 15 3375
58-18 RH1512-009 TTL Cable 15 3375
58-18 RH1522-009 ST Cable 15 3375
58-18 DH1512-110 TTL Cable 275 4625
58-18 DH1522-110 ST Cable 275 4625
58-18 RH1512-010 TTL Cable 275 4625
58-18 RH1522-010 ST Cable 275 4625
58-18 RH1512-026 TTL Cable 15 3375 X
58-18 RH1522-026 ST Cable 15 3375 X
58-18 RH1512-027 TTL Cable 275 4625 X
58-18 RH1522-027 ST Cable 275 4625 X
58-18 DH1512-210 ST Cable 275 275
58-18 DH1522-210 ST Cable 275 275
38-32 RH1320-001 ST Wires 163 163
38-32 RH1320-003 ST Cable 163 163
38-24 RH1320-009 ST Wires 163 163
38-24 RH1320-010 ST Cable 163 163
38-24 RH1320-012 ST Cable 3 3
38 Dia RH1320-005 ST Wires
38 Dia RH1320-006 ST Cable
NOTE RTD Temperature Sensing Feature
_ _
_ _
RH amp DH Series
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Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +46 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage
-30 Vdc
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap005 to 020 with a 24 diametral pitch gear005 to 030 with a 20 diametral pitch gear005 to 050 with a 12 diametral pitch gear005 to 075 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B 5NaCl for 48 hrs No visible corrosion
Humidity92 RH 40degC for 90 hrsNo visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 20 Irradiated cross-linked polyolefin
125degC
Rotational alignment of sensing face is notrequired for optimum output signal
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Note Either output will work with any AI-Tek Tachometer
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RH Series
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INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
RH1512-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-014 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-014 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
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RH Series
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
RH1512-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1522-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1512-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
RH1522-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1512-007 625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1522-007 625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
RH1612-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1622-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1612-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
RH1622-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1612-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1622-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) Supply Tracking
Net Weight 7 oz max
Fully Threaded with Leads
Part Num Thread A Dimension Lead Length Output
RH1512-009 625-18 UNF-2A 1500 (38100) 12(304) TTL Compatible
RH1522-009 625-18 UNF-2A 1500 (38100) 12(304) Supply Tracking
RH1512-010 625-18 UNF-2A 2750 (69850) 12(304) TTL Compatible
RH1522-010 625-18 UNF-2A 2750 (69850) 12(304) Supply Tracking
RH1612-009 750-20 UNEF-2A 1500 (38100) 12(304) TTL Compatible
RH1622-009 750-20 UNEF-2A 1500 (38100) 12(304) Supply Tracking
RH1612-010 750-20 UNEF-2A 2750 (69850) 12(304) TTL Compatible
RH1622-010 750-20 UNEF-2A 2750 (69850) 12(304) Supply Tracking
Net Weight 3 oz max Dimensions in inches and (mm)
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
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Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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RH Series
1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
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DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
AI-
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
40
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
44
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
46
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
50
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-07870085-1010-137
Performance Curves
SpecificationsOutput Voltage (Standard) 40 V (P-P)Output Voltage (Guarantee Point) 34 V (P-P)DC Resistance 130 ohms maxTypical Inductance 33 mH refOutput Polarity white lead positiveOperating Temperature -55 to +107degCLead Length -078 12 in (305 cm)
-137 24 in (609 cm)Net Weight 3 oz max
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-13170085-1010-214
SpecificationsOutput Voltage (Standard) 120 V (P-P)Output Voltage (Guarantee Point)151 V (P-P)
Typical Inductance 40-60 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107deg CCable Length 10 ft (305 m)Net Weight 5 oz max
Full Thread ndash Power Output
Performance Curves
Full Thread ndash General Purpose
Based on 8 DP Gear
Based on 20 DP Gear
180 (4572)(7772)
DC Resistance 250 ohms max
180306
(4572)(7772)
306
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Passive Speed Sensors
Dimensions in inches and (mm)
Full Thread ndash High Sensitivity
Ordering Part Thread Length (A)70085-8080-00370085-1010-220
Performance Curves
Molded ndash High Sensitivity
Ordering Part Thread Length (A)70084-1713-111 1125 (2857)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 190 V (P-P)Output Voltage (Guarantee Point) 139 V (P-P)DC Resistance 1200 ohms maxTypical Inductance 400 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -40 to +150deg CNet Weight 2 oz max
SpecificationsOutput Voltage (Standard) 150 V (P-P)Output Voltage (Guarantee Point) 128 V (P-P)
Typical Inductance 500 mH refOutput Polarity White lead positiveOperating Temperature -55 to + 107degCLead Length -003 12 in (305 cm)
-220 36 in (914 cm)Net Weight 3 oz max
6251588
58 ndash 18 FAMILY
Based on 20 DP Gear
Based on 20 DP Gear
180306
(4572)(7772)
DC Resistance 1430 ohms max
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Passive Speed Sensors
Molded
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-421 2475 (6287)70085-1010-425 3000 (7620)70085-1010-424 4493 (11412)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 63 V (P-P)Output Voltage (Guarantee Point) 49V (P-P)DC Resistance 250 ohms maxTypical Inductance 63 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -55 to +107deg CNet Weight 5 oz max
M16 x 15 Thd
Dimensions in inches and (mm)
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Passive Speed Sensors
Dimensions in inches and (mm)
General Purpose
Ordering Part Thread Length (A)70085-1010-007 812 (2062)70085-1010-056
Ordering Part Thread Length (A)70085-1010-086 812 (2062)70085-1010-355 812 (2062)
Performance Curves
High Sensitivity
38 ndash 24 FAMILY
SpecificationsOutput Voltage (Standard) 21 V (P-P)Output Voltage (Guarantee Point) 16 V (P-P)
Typical Inductance 22 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 6 in (152 cm)Net Weight 2 oz max
SpecificationsOutput Voltage (Standard) 55 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length -086 18 in (457 cm)Cable Length -355 40 in (1016 cm)Net Weight 2 oz max
Performance Curves
Based on 20 DP Gear
Based on 20 DP Gear
3625 (9208)
DC Resistance 125 ohms max
DC Resistance 960 ohms maxOutput Voltage (Guarantee Point) 42V (P-P)
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Passive Speed Sensors
Dimensions in inches and (mm)
38 ndash 24 FAMILY
General Purpose ndash High Temperature
Ordering Part Thread Length (A)70085-1010-041 812 (2062)70085-1010-428 1500 (3810)70085-1010-458
Performance Curves
SpecificationsOutput Voltage (Standard) 24 V (P-P)Output Voltage (Guarantee Point) 20 V (P-P)
Typical Inductance 21 mH refOutput Polarity White lead positiveOperating Temperature -73 to +232degCLead Length 40 in (1 m)Net Weight 2 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Ordering Part Thread Length (A)70085-1010-174 812 (2062)
Performance Curves
High Sensitivity - High Temperature
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 36V (P-P)
Output Polarity White lead positiveOperating Temperature -65 to +220degCCable Length 60 in (15 m)Net Weight 2 oz max
3625 (9208)
DC Resistance 125 ohms max
DC Resistance 705 ohms maxTypical Inductance 150 mH ref
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)
70085-8080-001 1500 (3810)
Full Thread ndash High Sensitivity
Smooth Body ndash High Sensitivity
Ordering Part 70085-1010-314 1375 (3493)70085-8080-004 2500 (6350)
Performance Curves
Performance Curves
38 ndash 24 FAMILY
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -55 to + 107degCLead Length 6 in (152cm)Net Weight 1 oz max
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -30 to +85degCLead Length -004 6 in (152cm)Cable Length -314 10ft (305m)Net Weight 3 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Length (A)
70085-1010-120 1250 (3175)
DC Resistance 960 ohms max
DC Resistance 960 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)
Performance Curves
Ordering Part Thread Length (A) (B)70085-1010-024 687 (1745) 313 (795)70085-1010-472 687 (1745) 500 (1270)70085-1010-227 1687 (4285) 313 (795)
SpecificationsOutput Voltage (Standard) 47 V (P-P)Output Voltage (Guarantee Point) 04 V (P-P)DC Resistance 125 ohms maxTypical Inductance 5-12 mH refOutput Polarity White lead positiveOperating Temperature -73 to 232degCLead Length 8 in (203 cm)Cable Length -472 60 in (15 m)Net Weight 2 oz max
B as ed on 20 DP G ear
and cable for extra protection Extra locknut provided
General Purpose - High Temperature
14 - 40 FAMILY
Egress is a 2-conductor AWG 26 shielded Teflon cable with 3 long shrink tubing over housing
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-037 500 (1270)70085-1010-299 1250 (3175)
Performance Curves
General Purpose ndash High Temperature
SpecificationsOutput Voltage (Standard) 13 V (P-P)Output Voltage (Guarantee Point) 6 V (P-P)DC Resistance 190 ohms maxTypical Inductance 10 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 18 in (457 cm)Net Weight 1 oz max
10 - 32 FAMILY
High Sensitivity
Ordering Part Thread Length (A)70085-1010-182 500 (1270)70085-1010-289 1250 (3175)
Performance Curves
SpecificationsOutput Voltage (Standard) 6 V (P-P)Output Voltage (Guarantee Point) 3 V (P-P)
Typical Inductance 2 mH refOutput Polarity White lead positiveOperating Temperature -73 to +150degCLead Length 18 in (457 cm)Net Weight 1 oz max
Based on 20 DP Gear
Based on 20 DP Gear
DC Resistance 50 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)Based on 8 DP Gear
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-413 1500 (3810)70085-1010-005 1875 (4763)70085-1010-327 2750 (6985)70085-1010-328 4000 (10160)70085-1010-414 6000 (15240)
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positiveOperating Temperature -65 to +95degCLead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1Groups E F G Temp Code T3C
Ordering Part Thread Length (A)70085-1010-081 1500 (3810)70085-1010-411 1875 (4763)70085-1010-329 2750 (6985)70085-1010-330 4000 (10160)70085-1010-412 6000 (15240)
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Lead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Based on 8 DP Gear
Groups E F G Temp Code T3C
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ULATEXCSA Sensors The products on pgs 18-20 are capable of up to a SIL 3 rating
ULATEXCSA Sensors
ATEX Group II Category 3G Zone 2
ATEX Group II Category 3G Zone 2
18
Operating Temperature -65 to 95degC
Passive Speed Sensors
Dimensions in inches and (mm)
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-403 1500 (3810)
70085-1010-405 2750
70085-1010-415 4000 (10160)70085-1010-416 6000 (15240)
Performance Curves
SpecificationsOutput Voltage (Standard) 90 V (P-P)Output Voltage (Guarantee Point) 94 V (P-P)DC Resistance 660 ohms maxTypical Inductance 210 mH maxOutput Polarity White lead positiveOperating Temperature -55 to +220deg CMounting Thread -0405 34 - 20 UNEF-2ACable Length 15 ft (457 m)Net Weight 16 oz max
Ordering Part Thread Length (A)70085-1010-404 1500 (3810)
70085-1010-406 2750 (6985)70085-1010-417 4000 (10160)70085-1010-420 6000 (15240)
SpecificationsOutput Voltage (Standard) 60V (P-P)Output Voltage (Guarantee Point) 134V (P-P)DC Resistance 210 ohms maxTypical Inductance 75 mH maxOutput Polarity White lead positiveOperating Temperature -20 to +220degCCable Length 15 ft (457m)Net Weight 16 oz max
Performance Curves
Based on 20 DP Gear
Based on 8 DP Gear
THREAD SIZE
FM ATEX Sensors
THREAD SIZE(6985)
58-18 UNF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
2750 (6985) 4000 (10160) 6000 (15240)
58-18 UNF-2A70085-1010-544 1875 (4763)
70085-1010-541 1875 (4763) 34-20 UNEF-2A70085-1010-542 34-20 UNEF-2A70085-1010-540 34-20 UNEF-2A70085-1010-543 34-20 UNEF-2A
34-20 UNEF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
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Thread Size (B)
Thread Size (B)
19
FM ATEX Sensors
Passive Speed Sensors LISTED PRODUCT
Performance Curves
Based on 8 DP Gear
IEC EX Sensors
Rating ATEX and IEC Ex Equip Group II Category 2G Gas Group IIC Zone 1Sensor must be used with MTL 7764ac intrinsic barrierUser must install sensor in such a manner as to limit the output voltage to lessthan 12V Pk-Pk and a total energy of less than 26 microjoules
Available in a range of inch and metric thread lengths and sizes and cable lengths of 3 or 10 meters Consult factory for additional details
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Ordering Part Thread Length (A) Thread Size (B) Cable Length (C) Conduit Thread
70085-3030-111 1500 (3810) 58-18 UNF-2A 3 m 12 NPT70085-3030-112 2750 (6885) 58-18 UNF-2A 3 m 12 NPT70085-3030-113 4000 (1016) 58-18 UNF-2A 3 m 12 NPT70085-3030-114 6000 (1524) 58-18 UNF-2A 3 m 12 NPT70085-3030-211 1500 (3810) 58-18 UNF-2A 12 NPT70085-3030-212 2750 (6885) 58-18 UNF-2A 12 NPT70085-3030-213 4000 (1016) 58-18 UNF-2A 12 NPT70085-3030-214 6000 (1524) 58-18 UNF-2A 12 NPT70085-3030-222 2750 (6885) 12 NPT70085-3030-235 1575 (4000) M16 x 15 6g 10 m G 1270085-3030-237 3937 (1000) M16 x 15 6g 10 m G 12
THREAD SIZE
20
10 m10 m10 m10 m10 m34-20 UNEF-2A
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Net Weight 14 oz maxOperating Temperature -65 to 95degC
The defined SIL capability is based on the end users safety system architecture and defined diagnostics as outlined in IEC 61508 and IEC 61511 for sensors Single channel devise is insufficient to determine zero speed as part ofthe safety function Consult the factory for additional details (Pages 18-20)
KEY FEATURESCapable of up to a SIL 3 Rating PFH 610 E-09 1h
PFD AVG (T1=20 Years) 535 E-04 DC 90 SFF 91
ApplicationUsed for Speed Take Off
The Side Look Sensor (SLS) has been developed byAI-Tek Instruments for Allison automatic transmis-sions for trucks ranging from light duty vans to over-the-road tractors It is available for Allison AT MTand HT transmissions The new SLS improves onearlier designs developed for Allison to replace amechanical speed system
The SLS is a variable reluctance device that pro-vides electronic transmission speed inputs toengine control systems andor electronic dash-boards It mounts directly on the transmission andemploys a unique magnet configuration thatinduces a magnetic field on the side of the sensorin the path of the rotating transmission gear Thissystem with its fewer mounting parts improvesreliability reduces weight and conserves spaceover the earlier designs
AI-Tek Instruments LLCSide Look Sensor
The new SLS uses a molded glass filled nylon bodyto protect the sensor in harsh truck-operatingenvironments It replaces the old fly-lead designwith an integral standard Packard connectorwhich eliminates the added extra connector cost ofthe old design It is available in single and dualoutput versions
The SLS is manufactured in the United StatesAI-Tek Instruments Distributors stock the SLS foroff-the-shelf maintenance repair and overhaul(MRO) requirements
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188
CONNECTOR MATES WITHPACKARD 12162188
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Outline and Mounting Dimensions
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Specifications
PN 70082-1000-021 AT MT
PN 70082-1000-022 AT MT
PN 70082-1000-023 HT
PN 70082-1000-024 HT
Applications
22
Hall Effect Sensors
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for engine timing applications and has developed a line of durable products for
industrial use
With multiple standard variations we offer the widest range of standard catalog
sensors to meet your various design needs The design is flexible to easily meet all
of your application requirements
The Hall Effect sensor can sense each change in target movement regardless of speed
from near zero to 15 kHz frequency range generating a steady pulse train of frequency
proportional to target speed Typically each time a gear tooth (or any ferrous discontinuity)
passes in front of the sensor the output changes state This type of sensor is known as a P
type because it uses N-P-N transistor logic (as opposed to N type which uses P-N-P
transistor logic)
Key features to note are
bull Reverse voltage protection to prevent damage if miswired
bull Extended temperature range
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
AI-Tek has (3) Series of Hall Effect Sensors RH Series DH Series and BH Series
Below is a quick reference chart of the features of each of the series
It is the customers responsibility to determine whether the product is proper for customers use and application
PERFORMANCE RH SERIES DH SERIES BH SERIES1 Output Channel 1 Output Channel 2 Output Channels
+ Direction
Zero speed to 15kHz operation X X X
Standard gear tooth sensing X X X
Fine 32 DP Capability X X
Single tooth valley target X X
No installation alignment X
Extended airgap
(0100rdquo+ for 12DP and coarser targets) X X
General noise immunity X X X
EMI Hardened X X
High tolerance to target run-out X X
Self-calibrating X X
Direction Sensing X
Lowest cost X
23
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Distance Amplifier)For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
34-20 DH1612-113 TTL Cable 15 3375
34-20 DH1622-113 ST Cable 15 3375
34-20 RH1612-013 TTL Cable 15 3375
34-20 RH1622-013 ST Cable 15 3375
34-20 DH1612-114 TTL Cable 275 4625
34-20 DH1622-114 ST Cable 275 462534-20 RH1612-014 TTL Cable 275 4625
34-20 RH1622-014 ST Cable 275 462534-20 DH1612-105 TTL Connector 15 3375
34-20 DH1622-105 ST Connector 15 3375
34-20 RH1612-005 TTL Connector 15 3375
34-20 RH1622-005 ST Connector 15 3375
34-20 DH1612-106 TTL Connector 275 4625
34-20 DH1622-106 ST Connector 275 4625
34-20 RH1612-006 TTL Connector 275 4625
34-20 RH1622-006 ST Connector 275 4625
34-20 DH1612-107 TTL Connector 4 6512
34-20 DH1622-107 ST Connector 4 6512
34-20 RH1612-007 TTL Connector 4 6512
34-20 RH1622-007 ST Connector 4 6512
34-20 DH1612-109 TTL Wires 15 3375
34-20 DH1622-109 ST Wires 15 3375
34-20 RH1612-009 TTL Wires 15 3375
34-20 RH1622-009 ST Wires 15 3375
34-20 DH1612-110 TTL Wires 275 4625
34-20 DH1622-110 ST Wires 275 4625
34-20 RH1612-010 TTL Wires 275 4625
34-20 RH1622-010 ST Wires 275 4625
34-20 RH1612-025 TTL Cable 1375 475 X
34-20 RH1612-026 TTL Cable 15 3375 X
34-20 RH1622-026 ST Cable 15 3375 X
34-20 RH1612-027 TTL Cable 275 4625 X
34-20 RH1622-027 ST Cable 275 4625 X
Active Sensor Selection Guide
RH amp DH Series
24
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Active Sensor Selection Guide
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
58-18 DH1512-113 TTL Cable 15 3375
58-18 DH1522-113 ST Cable 15 3375
58-18 RH1512-013 TTL Cable 15 3375
58-18 RH1522-013 ST Cable 15 3375
58-18 DH1512-114 TTL Cable 275 4625
58-18 DH1522-114 ST Cable 275 4625
58-18 RH1512-014 TTL Cable 275 4625
58-18 RH1522-014 ST Cable 275 4625
58-18 DH1512-105 TTL Connector 15 3375
58-18 DH1522-105 ST Connector 15 3375
58-18 RH1512-005 TTL Connector 15 3375
58-18 RH1522-005 ST Connector 15 3375
58-18 DH1512-106 TTL Connector 275 4625
58-18 DH1522-106 ST Connector 275 4625
58-18 RH1512-006 TTL Connector 275 4625
58-18 RH1522-006 ST Connector 275 4625
58-18 DH1512-107 TTL Connector 4 6512
58-18 DH1522-107 ST Connector 4 6512
58-18 RH1512-007 TTL Connector 4 6512
58-18 RH1522-007 ST Connector 4 6512
58-18 DH1512-109 TTL Cable 15 3375
58-18 DH1522-109 ST Cable 15 3375
58-18 RH1512-009 TTL Cable 15 3375
58-18 RH1522-009 ST Cable 15 3375
58-18 DH1512-110 TTL Cable 275 4625
58-18 DH1522-110 ST Cable 275 4625
58-18 RH1512-010 TTL Cable 275 4625
58-18 RH1522-010 ST Cable 275 4625
58-18 RH1512-026 TTL Cable 15 3375 X
58-18 RH1522-026 ST Cable 15 3375 X
58-18 RH1512-027 TTL Cable 275 4625 X
58-18 RH1522-027 ST Cable 275 4625 X
58-18 DH1512-210 ST Cable 275 275
58-18 DH1522-210 ST Cable 275 275
38-32 RH1320-001 ST Wires 163 163
38-32 RH1320-003 ST Cable 163 163
38-24 RH1320-009 ST Wires 163 163
38-24 RH1320-010 ST Cable 163 163
38-24 RH1320-012 ST Cable 3 3
38 Dia RH1320-005 ST Wires
38 Dia RH1320-006 ST Cable
NOTE RTD Temperature Sensing Feature
_ _
_ _
RH amp DH Series
25
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Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +46 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage
-30 Vdc
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap005 to 020 with a 24 diametral pitch gear005 to 030 with a 20 diametral pitch gear005 to 050 with a 12 diametral pitch gear005 to 075 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B 5NaCl for 48 hrs No visible corrosion
Humidity92 RH 40degC for 90 hrsNo visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 20 Irradiated cross-linked polyolefin
125degC
Rotational alignment of sensing face is notrequired for optimum output signal
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Note Either output will work with any AI-Tek Tachometer
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RH Series
26
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
RH1512-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-014 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-014 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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Tek
Instr
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SA
750-20 UNEF-2A
750-20 UNEF-2A
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
27
RH Series
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
RH1512-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1522-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1512-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
RH1522-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1512-007 625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1522-007 625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
RH1612-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1622-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1612-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
RH1622-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1612-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1622-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) Supply Tracking
Net Weight 7 oz max
Fully Threaded with Leads
Part Num Thread A Dimension Lead Length Output
RH1512-009 625-18 UNF-2A 1500 (38100) 12(304) TTL Compatible
RH1522-009 625-18 UNF-2A 1500 (38100) 12(304) Supply Tracking
RH1512-010 625-18 UNF-2A 2750 (69850) 12(304) TTL Compatible
RH1522-010 625-18 UNF-2A 2750 (69850) 12(304) Supply Tracking
RH1612-009 750-20 UNEF-2A 1500 (38100) 12(304) TTL Compatible
RH1622-009 750-20 UNEF-2A 1500 (38100) 12(304) Supply Tracking
RH1612-010 750-20 UNEF-2A 2750 (69850) 12(304) TTL Compatible
RH1622-010 750-20 UNEF-2A 2750 (69850) 12(304) Supply Tracking
Net Weight 3 oz max Dimensions in inches and (mm)
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RH Series
28
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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ARH Series
29
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
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CT
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RH Series
30
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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Dim A
Dimension A
1630
RH Series
1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
31
DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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Instr
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
38
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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A
(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
40
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 11: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/11.jpg)
Passive Speed Sensors
Dimensions in inches and (mm)
Full Thread ndash High Sensitivity
Ordering Part Thread Length (A)70085-8080-00370085-1010-220
Performance Curves
Molded ndash High Sensitivity
Ordering Part Thread Length (A)70084-1713-111 1125 (2857)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 190 V (P-P)Output Voltage (Guarantee Point) 139 V (P-P)DC Resistance 1200 ohms maxTypical Inductance 400 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -40 to +150deg CNet Weight 2 oz max
SpecificationsOutput Voltage (Standard) 150 V (P-P)Output Voltage (Guarantee Point) 128 V (P-P)
Typical Inductance 500 mH refOutput Polarity White lead positiveOperating Temperature -55 to + 107degCLead Length -003 12 in (305 cm)
-220 36 in (914 cm)Net Weight 3 oz max
6251588
58 ndash 18 FAMILY
Based on 20 DP Gear
Based on 20 DP Gear
180306
(4572)(7772)
DC Resistance 1430 ohms max
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Passive Speed Sensors
Molded
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-421 2475 (6287)70085-1010-425 3000 (7620)70085-1010-424 4493 (11412)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 63 V (P-P)Output Voltage (Guarantee Point) 49V (P-P)DC Resistance 250 ohms maxTypical Inductance 63 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -55 to +107deg CNet Weight 5 oz max
M16 x 15 Thd
Dimensions in inches and (mm)
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Passive Speed Sensors
Dimensions in inches and (mm)
General Purpose
Ordering Part Thread Length (A)70085-1010-007 812 (2062)70085-1010-056
Ordering Part Thread Length (A)70085-1010-086 812 (2062)70085-1010-355 812 (2062)
Performance Curves
High Sensitivity
38 ndash 24 FAMILY
SpecificationsOutput Voltage (Standard) 21 V (P-P)Output Voltage (Guarantee Point) 16 V (P-P)
Typical Inductance 22 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 6 in (152 cm)Net Weight 2 oz max
SpecificationsOutput Voltage (Standard) 55 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length -086 18 in (457 cm)Cable Length -355 40 in (1016 cm)Net Weight 2 oz max
Performance Curves
Based on 20 DP Gear
Based on 20 DP Gear
3625 (9208)
DC Resistance 125 ohms max
DC Resistance 960 ohms maxOutput Voltage (Guarantee Point) 42V (P-P)
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Passive Speed Sensors
Dimensions in inches and (mm)
38 ndash 24 FAMILY
General Purpose ndash High Temperature
Ordering Part Thread Length (A)70085-1010-041 812 (2062)70085-1010-428 1500 (3810)70085-1010-458
Performance Curves
SpecificationsOutput Voltage (Standard) 24 V (P-P)Output Voltage (Guarantee Point) 20 V (P-P)
Typical Inductance 21 mH refOutput Polarity White lead positiveOperating Temperature -73 to +232degCLead Length 40 in (1 m)Net Weight 2 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Ordering Part Thread Length (A)70085-1010-174 812 (2062)
Performance Curves
High Sensitivity - High Temperature
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 36V (P-P)
Output Polarity White lead positiveOperating Temperature -65 to +220degCCable Length 60 in (15 m)Net Weight 2 oz max
3625 (9208)
DC Resistance 125 ohms max
DC Resistance 705 ohms maxTypical Inductance 150 mH ref
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)
70085-8080-001 1500 (3810)
Full Thread ndash High Sensitivity
Smooth Body ndash High Sensitivity
Ordering Part 70085-1010-314 1375 (3493)70085-8080-004 2500 (6350)
Performance Curves
Performance Curves
38 ndash 24 FAMILY
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -55 to + 107degCLead Length 6 in (152cm)Net Weight 1 oz max
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -30 to +85degCLead Length -004 6 in (152cm)Cable Length -314 10ft (305m)Net Weight 3 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Length (A)
70085-1010-120 1250 (3175)
DC Resistance 960 ohms max
DC Resistance 960 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)
Performance Curves
Ordering Part Thread Length (A) (B)70085-1010-024 687 (1745) 313 (795)70085-1010-472 687 (1745) 500 (1270)70085-1010-227 1687 (4285) 313 (795)
SpecificationsOutput Voltage (Standard) 47 V (P-P)Output Voltage (Guarantee Point) 04 V (P-P)DC Resistance 125 ohms maxTypical Inductance 5-12 mH refOutput Polarity White lead positiveOperating Temperature -73 to 232degCLead Length 8 in (203 cm)Cable Length -472 60 in (15 m)Net Weight 2 oz max
B as ed on 20 DP G ear
and cable for extra protection Extra locknut provided
General Purpose - High Temperature
14 - 40 FAMILY
Egress is a 2-conductor AWG 26 shielded Teflon cable with 3 long shrink tubing over housing
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-037 500 (1270)70085-1010-299 1250 (3175)
Performance Curves
General Purpose ndash High Temperature
SpecificationsOutput Voltage (Standard) 13 V (P-P)Output Voltage (Guarantee Point) 6 V (P-P)DC Resistance 190 ohms maxTypical Inductance 10 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 18 in (457 cm)Net Weight 1 oz max
10 - 32 FAMILY
High Sensitivity
Ordering Part Thread Length (A)70085-1010-182 500 (1270)70085-1010-289 1250 (3175)
Performance Curves
SpecificationsOutput Voltage (Standard) 6 V (P-P)Output Voltage (Guarantee Point) 3 V (P-P)
Typical Inductance 2 mH refOutput Polarity White lead positiveOperating Temperature -73 to +150degCLead Length 18 in (457 cm)Net Weight 1 oz max
Based on 20 DP Gear
Based on 20 DP Gear
DC Resistance 50 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)Based on 8 DP Gear
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-413 1500 (3810)70085-1010-005 1875 (4763)70085-1010-327 2750 (6985)70085-1010-328 4000 (10160)70085-1010-414 6000 (15240)
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positiveOperating Temperature -65 to +95degCLead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1Groups E F G Temp Code T3C
Ordering Part Thread Length (A)70085-1010-081 1500 (3810)70085-1010-411 1875 (4763)70085-1010-329 2750 (6985)70085-1010-330 4000 (10160)70085-1010-412 6000 (15240)
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Lead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Based on 8 DP Gear
Groups E F G Temp Code T3C
ASU T
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murtsnI keT-IA
ULATEXCSA Sensors The products on pgs 18-20 are capable of up to a SIL 3 rating
ULATEXCSA Sensors
ATEX Group II Category 3G Zone 2
ATEX Group II Category 3G Zone 2
18
Operating Temperature -65 to 95degC
Passive Speed Sensors
Dimensions in inches and (mm)
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-403 1500 (3810)
70085-1010-405 2750
70085-1010-415 4000 (10160)70085-1010-416 6000 (15240)
Performance Curves
SpecificationsOutput Voltage (Standard) 90 V (P-P)Output Voltage (Guarantee Point) 94 V (P-P)DC Resistance 660 ohms maxTypical Inductance 210 mH maxOutput Polarity White lead positiveOperating Temperature -55 to +220deg CMounting Thread -0405 34 - 20 UNEF-2ACable Length 15 ft (457 m)Net Weight 16 oz max
Ordering Part Thread Length (A)70085-1010-404 1500 (3810)
70085-1010-406 2750 (6985)70085-1010-417 4000 (10160)70085-1010-420 6000 (15240)
SpecificationsOutput Voltage (Standard) 60V (P-P)Output Voltage (Guarantee Point) 134V (P-P)DC Resistance 210 ohms maxTypical Inductance 75 mH maxOutput Polarity White lead positiveOperating Temperature -20 to +220degCCable Length 15 ft (457m)Net Weight 16 oz max
Performance Curves
Based on 20 DP Gear
Based on 8 DP Gear
THREAD SIZE
FM ATEX Sensors
THREAD SIZE(6985)
58-18 UNF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
2750 (6985) 4000 (10160) 6000 (15240)
58-18 UNF-2A70085-1010-544 1875 (4763)
70085-1010-541 1875 (4763) 34-20 UNEF-2A70085-1010-542 34-20 UNEF-2A70085-1010-540 34-20 UNEF-2A70085-1010-543 34-20 UNEF-2A
34-20 UNEF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
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Thread Size (B)
Thread Size (B)
19
FM ATEX Sensors
Passive Speed Sensors LISTED PRODUCT
Performance Curves
Based on 8 DP Gear
IEC EX Sensors
Rating ATEX and IEC Ex Equip Group II Category 2G Gas Group IIC Zone 1Sensor must be used with MTL 7764ac intrinsic barrierUser must install sensor in such a manner as to limit the output voltage to lessthan 12V Pk-Pk and a total energy of less than 26 microjoules
Available in a range of inch and metric thread lengths and sizes and cable lengths of 3 or 10 meters Consult factory for additional details
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murtsnI keT-IA
Ordering Part Thread Length (A) Thread Size (B) Cable Length (C) Conduit Thread
70085-3030-111 1500 (3810) 58-18 UNF-2A 3 m 12 NPT70085-3030-112 2750 (6885) 58-18 UNF-2A 3 m 12 NPT70085-3030-113 4000 (1016) 58-18 UNF-2A 3 m 12 NPT70085-3030-114 6000 (1524) 58-18 UNF-2A 3 m 12 NPT70085-3030-211 1500 (3810) 58-18 UNF-2A 12 NPT70085-3030-212 2750 (6885) 58-18 UNF-2A 12 NPT70085-3030-213 4000 (1016) 58-18 UNF-2A 12 NPT70085-3030-214 6000 (1524) 58-18 UNF-2A 12 NPT70085-3030-222 2750 (6885) 12 NPT70085-3030-235 1575 (4000) M16 x 15 6g 10 m G 1270085-3030-237 3937 (1000) M16 x 15 6g 10 m G 12
THREAD SIZE
20
10 m10 m10 m10 m10 m34-20 UNEF-2A
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Net Weight 14 oz maxOperating Temperature -65 to 95degC
The defined SIL capability is based on the end users safety system architecture and defined diagnostics as outlined in IEC 61508 and IEC 61511 for sensors Single channel devise is insufficient to determine zero speed as part ofthe safety function Consult the factory for additional details (Pages 18-20)
KEY FEATURESCapable of up to a SIL 3 Rating PFH 610 E-09 1h
PFD AVG (T1=20 Years) 535 E-04 DC 90 SFF 91
ApplicationUsed for Speed Take Off
The Side Look Sensor (SLS) has been developed byAI-Tek Instruments for Allison automatic transmis-sions for trucks ranging from light duty vans to over-the-road tractors It is available for Allison AT MTand HT transmissions The new SLS improves onearlier designs developed for Allison to replace amechanical speed system
The SLS is a variable reluctance device that pro-vides electronic transmission speed inputs toengine control systems andor electronic dash-boards It mounts directly on the transmission andemploys a unique magnet configuration thatinduces a magnetic field on the side of the sensorin the path of the rotating transmission gear Thissystem with its fewer mounting parts improvesreliability reduces weight and conserves spaceover the earlier designs
AI-Tek Instruments LLCSide Look Sensor
The new SLS uses a molded glass filled nylon bodyto protect the sensor in harsh truck-operatingenvironments It replaces the old fly-lead designwith an integral standard Packard connectorwhich eliminates the added extra connector cost ofthe old design It is available in single and dualoutput versions
The SLS is manufactured in the United StatesAI-Tek Instruments Distributors stock the SLS foroff-the-shelf maintenance repair and overhaul(MRO) requirements
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188
CONNECTOR MATES WITHPACKARD 12162188
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Outline and Mounting Dimensions
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Specifications
PN 70082-1000-021 AT MT
PN 70082-1000-022 AT MT
PN 70082-1000-023 HT
PN 70082-1000-024 HT
Applications
22
Hall Effect Sensors
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for engine timing applications and has developed a line of durable products for
industrial use
With multiple standard variations we offer the widest range of standard catalog
sensors to meet your various design needs The design is flexible to easily meet all
of your application requirements
The Hall Effect sensor can sense each change in target movement regardless of speed
from near zero to 15 kHz frequency range generating a steady pulse train of frequency
proportional to target speed Typically each time a gear tooth (or any ferrous discontinuity)
passes in front of the sensor the output changes state This type of sensor is known as a P
type because it uses N-P-N transistor logic (as opposed to N type which uses P-N-P
transistor logic)
Key features to note are
bull Reverse voltage protection to prevent damage if miswired
bull Extended temperature range
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
AI-Tek has (3) Series of Hall Effect Sensors RH Series DH Series and BH Series
Below is a quick reference chart of the features of each of the series
It is the customers responsibility to determine whether the product is proper for customers use and application
PERFORMANCE RH SERIES DH SERIES BH SERIES1 Output Channel 1 Output Channel 2 Output Channels
+ Direction
Zero speed to 15kHz operation X X X
Standard gear tooth sensing X X X
Fine 32 DP Capability X X
Single tooth valley target X X
No installation alignment X
Extended airgap
(0100rdquo+ for 12DP and coarser targets) X X
General noise immunity X X X
EMI Hardened X X
High tolerance to target run-out X X
Self-calibrating X X
Direction Sensing X
Lowest cost X
23
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Distance Amplifier)For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
34-20 DH1612-113 TTL Cable 15 3375
34-20 DH1622-113 ST Cable 15 3375
34-20 RH1612-013 TTL Cable 15 3375
34-20 RH1622-013 ST Cable 15 3375
34-20 DH1612-114 TTL Cable 275 4625
34-20 DH1622-114 ST Cable 275 462534-20 RH1612-014 TTL Cable 275 4625
34-20 RH1622-014 ST Cable 275 462534-20 DH1612-105 TTL Connector 15 3375
34-20 DH1622-105 ST Connector 15 3375
34-20 RH1612-005 TTL Connector 15 3375
34-20 RH1622-005 ST Connector 15 3375
34-20 DH1612-106 TTL Connector 275 4625
34-20 DH1622-106 ST Connector 275 4625
34-20 RH1612-006 TTL Connector 275 4625
34-20 RH1622-006 ST Connector 275 4625
34-20 DH1612-107 TTL Connector 4 6512
34-20 DH1622-107 ST Connector 4 6512
34-20 RH1612-007 TTL Connector 4 6512
34-20 RH1622-007 ST Connector 4 6512
34-20 DH1612-109 TTL Wires 15 3375
34-20 DH1622-109 ST Wires 15 3375
34-20 RH1612-009 TTL Wires 15 3375
34-20 RH1622-009 ST Wires 15 3375
34-20 DH1612-110 TTL Wires 275 4625
34-20 DH1622-110 ST Wires 275 4625
34-20 RH1612-010 TTL Wires 275 4625
34-20 RH1622-010 ST Wires 275 4625
34-20 RH1612-025 TTL Cable 1375 475 X
34-20 RH1612-026 TTL Cable 15 3375 X
34-20 RH1622-026 ST Cable 15 3375 X
34-20 RH1612-027 TTL Cable 275 4625 X
34-20 RH1622-027 ST Cable 275 4625 X
Active Sensor Selection Guide
RH amp DH Series
24
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Active Sensor Selection Guide
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
58-18 DH1512-113 TTL Cable 15 3375
58-18 DH1522-113 ST Cable 15 3375
58-18 RH1512-013 TTL Cable 15 3375
58-18 RH1522-013 ST Cable 15 3375
58-18 DH1512-114 TTL Cable 275 4625
58-18 DH1522-114 ST Cable 275 4625
58-18 RH1512-014 TTL Cable 275 4625
58-18 RH1522-014 ST Cable 275 4625
58-18 DH1512-105 TTL Connector 15 3375
58-18 DH1522-105 ST Connector 15 3375
58-18 RH1512-005 TTL Connector 15 3375
58-18 RH1522-005 ST Connector 15 3375
58-18 DH1512-106 TTL Connector 275 4625
58-18 DH1522-106 ST Connector 275 4625
58-18 RH1512-006 TTL Connector 275 4625
58-18 RH1522-006 ST Connector 275 4625
58-18 DH1512-107 TTL Connector 4 6512
58-18 DH1522-107 ST Connector 4 6512
58-18 RH1512-007 TTL Connector 4 6512
58-18 RH1522-007 ST Connector 4 6512
58-18 DH1512-109 TTL Cable 15 3375
58-18 DH1522-109 ST Cable 15 3375
58-18 RH1512-009 TTL Cable 15 3375
58-18 RH1522-009 ST Cable 15 3375
58-18 DH1512-110 TTL Cable 275 4625
58-18 DH1522-110 ST Cable 275 4625
58-18 RH1512-010 TTL Cable 275 4625
58-18 RH1522-010 ST Cable 275 4625
58-18 RH1512-026 TTL Cable 15 3375 X
58-18 RH1522-026 ST Cable 15 3375 X
58-18 RH1512-027 TTL Cable 275 4625 X
58-18 RH1522-027 ST Cable 275 4625 X
58-18 DH1512-210 ST Cable 275 275
58-18 DH1522-210 ST Cable 275 275
38-32 RH1320-001 ST Wires 163 163
38-32 RH1320-003 ST Cable 163 163
38-24 RH1320-009 ST Wires 163 163
38-24 RH1320-010 ST Cable 163 163
38-24 RH1320-012 ST Cable 3 3
38 Dia RH1320-005 ST Wires
38 Dia RH1320-006 ST Cable
NOTE RTD Temperature Sensing Feature
_ _
_ _
RH amp DH Series
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Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +46 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage
-30 Vdc
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap005 to 020 with a 24 diametral pitch gear005 to 030 with a 20 diametral pitch gear005 to 050 with a 12 diametral pitch gear005 to 075 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B 5NaCl for 48 hrs No visible corrosion
Humidity92 RH 40degC for 90 hrsNo visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 20 Irradiated cross-linked polyolefin
125degC
Rotational alignment of sensing face is notrequired for optimum output signal
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Note Either output will work with any AI-Tek Tachometer
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RH Series
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INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
RH1512-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-014 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-014 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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750-20 UNEF-2A
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
27
RH Series
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
RH1512-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1522-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1512-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
RH1522-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1512-007 625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1522-007 625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
RH1612-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1622-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1612-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
RH1622-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1612-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1622-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) Supply Tracking
Net Weight 7 oz max
Fully Threaded with Leads
Part Num Thread A Dimension Lead Length Output
RH1512-009 625-18 UNF-2A 1500 (38100) 12(304) TTL Compatible
RH1522-009 625-18 UNF-2A 1500 (38100) 12(304) Supply Tracking
RH1512-010 625-18 UNF-2A 2750 (69850) 12(304) TTL Compatible
RH1522-010 625-18 UNF-2A 2750 (69850) 12(304) Supply Tracking
RH1612-009 750-20 UNEF-2A 1500 (38100) 12(304) TTL Compatible
RH1622-009 750-20 UNEF-2A 1500 (38100) 12(304) Supply Tracking
RH1612-010 750-20 UNEF-2A 2750 (69850) 12(304) TTL Compatible
RH1622-010 750-20 UNEF-2A 2750 (69850) 12(304) Supply Tracking
Net Weight 3 oz max Dimensions in inches and (mm)
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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ARH Series
29
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
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Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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1630
RH Series
1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
31
DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
46
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 12: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/12.jpg)
Passive Speed Sensors
Molded
58 ndash 18 FAMILY
Ordering Part Thread Length (A)70085-1010-421 2475 (6287)70085-1010-425 3000 (7620)70085-1010-424 4493 (11412)(Select cable from group ldquoArdquo see index)
Performance Curves
SpecificationsOutput Voltage (Standard) 63 V (P-P)Output Voltage (Guarantee Point) 49V (P-P)DC Resistance 250 ohms maxTypical Inductance 63 mH refOutput Polarity Pin lsquoBrsquo positiveOperating Temperature -55 to +107deg CNet Weight 5 oz max
M16 x 15 Thd
Dimensions in inches and (mm)
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12
Passive Speed Sensors
Dimensions in inches and (mm)
General Purpose
Ordering Part Thread Length (A)70085-1010-007 812 (2062)70085-1010-056
Ordering Part Thread Length (A)70085-1010-086 812 (2062)70085-1010-355 812 (2062)
Performance Curves
High Sensitivity
38 ndash 24 FAMILY
SpecificationsOutput Voltage (Standard) 21 V (P-P)Output Voltage (Guarantee Point) 16 V (P-P)
Typical Inductance 22 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 6 in (152 cm)Net Weight 2 oz max
SpecificationsOutput Voltage (Standard) 55 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length -086 18 in (457 cm)Cable Length -355 40 in (1016 cm)Net Weight 2 oz max
Performance Curves
Based on 20 DP Gear
Based on 20 DP Gear
3625 (9208)
DC Resistance 125 ohms max
DC Resistance 960 ohms maxOutput Voltage (Guarantee Point) 42V (P-P)
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Passive Speed Sensors
Dimensions in inches and (mm)
38 ndash 24 FAMILY
General Purpose ndash High Temperature
Ordering Part Thread Length (A)70085-1010-041 812 (2062)70085-1010-428 1500 (3810)70085-1010-458
Performance Curves
SpecificationsOutput Voltage (Standard) 24 V (P-P)Output Voltage (Guarantee Point) 20 V (P-P)
Typical Inductance 21 mH refOutput Polarity White lead positiveOperating Temperature -73 to +232degCLead Length 40 in (1 m)Net Weight 2 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Ordering Part Thread Length (A)70085-1010-174 812 (2062)
Performance Curves
High Sensitivity - High Temperature
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 36V (P-P)
Output Polarity White lead positiveOperating Temperature -65 to +220degCCable Length 60 in (15 m)Net Weight 2 oz max
3625 (9208)
DC Resistance 125 ohms max
DC Resistance 705 ohms maxTypical Inductance 150 mH ref
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)
70085-8080-001 1500 (3810)
Full Thread ndash High Sensitivity
Smooth Body ndash High Sensitivity
Ordering Part 70085-1010-314 1375 (3493)70085-8080-004 2500 (6350)
Performance Curves
Performance Curves
38 ndash 24 FAMILY
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -55 to + 107degCLead Length 6 in (152cm)Net Weight 1 oz max
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -30 to +85degCLead Length -004 6 in (152cm)Cable Length -314 10ft (305m)Net Weight 3 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Length (A)
70085-1010-120 1250 (3175)
DC Resistance 960 ohms max
DC Resistance 960 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)
Performance Curves
Ordering Part Thread Length (A) (B)70085-1010-024 687 (1745) 313 (795)70085-1010-472 687 (1745) 500 (1270)70085-1010-227 1687 (4285) 313 (795)
SpecificationsOutput Voltage (Standard) 47 V (P-P)Output Voltage (Guarantee Point) 04 V (P-P)DC Resistance 125 ohms maxTypical Inductance 5-12 mH refOutput Polarity White lead positiveOperating Temperature -73 to 232degCLead Length 8 in (203 cm)Cable Length -472 60 in (15 m)Net Weight 2 oz max
B as ed on 20 DP G ear
and cable for extra protection Extra locknut provided
General Purpose - High Temperature
14 - 40 FAMILY
Egress is a 2-conductor AWG 26 shielded Teflon cable with 3 long shrink tubing over housing
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-037 500 (1270)70085-1010-299 1250 (3175)
Performance Curves
General Purpose ndash High Temperature
SpecificationsOutput Voltage (Standard) 13 V (P-P)Output Voltage (Guarantee Point) 6 V (P-P)DC Resistance 190 ohms maxTypical Inductance 10 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 18 in (457 cm)Net Weight 1 oz max
10 - 32 FAMILY
High Sensitivity
Ordering Part Thread Length (A)70085-1010-182 500 (1270)70085-1010-289 1250 (3175)
Performance Curves
SpecificationsOutput Voltage (Standard) 6 V (P-P)Output Voltage (Guarantee Point) 3 V (P-P)
Typical Inductance 2 mH refOutput Polarity White lead positiveOperating Temperature -73 to +150degCLead Length 18 in (457 cm)Net Weight 1 oz max
Based on 20 DP Gear
Based on 20 DP Gear
DC Resistance 50 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)Based on 8 DP Gear
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-413 1500 (3810)70085-1010-005 1875 (4763)70085-1010-327 2750 (6985)70085-1010-328 4000 (10160)70085-1010-414 6000 (15240)
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positiveOperating Temperature -65 to +95degCLead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1Groups E F G Temp Code T3C
Ordering Part Thread Length (A)70085-1010-081 1500 (3810)70085-1010-411 1875 (4763)70085-1010-329 2750 (6985)70085-1010-330 4000 (10160)70085-1010-412 6000 (15240)
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Lead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Based on 8 DP Gear
Groups E F G Temp Code T3C
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ULATEXCSA Sensors The products on pgs 18-20 are capable of up to a SIL 3 rating
ULATEXCSA Sensors
ATEX Group II Category 3G Zone 2
ATEX Group II Category 3G Zone 2
18
Operating Temperature -65 to 95degC
Passive Speed Sensors
Dimensions in inches and (mm)
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-403 1500 (3810)
70085-1010-405 2750
70085-1010-415 4000 (10160)70085-1010-416 6000 (15240)
Performance Curves
SpecificationsOutput Voltage (Standard) 90 V (P-P)Output Voltage (Guarantee Point) 94 V (P-P)DC Resistance 660 ohms maxTypical Inductance 210 mH maxOutput Polarity White lead positiveOperating Temperature -55 to +220deg CMounting Thread -0405 34 - 20 UNEF-2ACable Length 15 ft (457 m)Net Weight 16 oz max
Ordering Part Thread Length (A)70085-1010-404 1500 (3810)
70085-1010-406 2750 (6985)70085-1010-417 4000 (10160)70085-1010-420 6000 (15240)
SpecificationsOutput Voltage (Standard) 60V (P-P)Output Voltage (Guarantee Point) 134V (P-P)DC Resistance 210 ohms maxTypical Inductance 75 mH maxOutput Polarity White lead positiveOperating Temperature -20 to +220degCCable Length 15 ft (457m)Net Weight 16 oz max
Performance Curves
Based on 20 DP Gear
Based on 8 DP Gear
THREAD SIZE
FM ATEX Sensors
THREAD SIZE(6985)
58-18 UNF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
2750 (6985) 4000 (10160) 6000 (15240)
58-18 UNF-2A70085-1010-544 1875 (4763)
70085-1010-541 1875 (4763) 34-20 UNEF-2A70085-1010-542 34-20 UNEF-2A70085-1010-540 34-20 UNEF-2A70085-1010-543 34-20 UNEF-2A
34-20 UNEF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
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Thread Size (B)
Thread Size (B)
19
FM ATEX Sensors
Passive Speed Sensors LISTED PRODUCT
Performance Curves
Based on 8 DP Gear
IEC EX Sensors
Rating ATEX and IEC Ex Equip Group II Category 2G Gas Group IIC Zone 1Sensor must be used with MTL 7764ac intrinsic barrierUser must install sensor in such a manner as to limit the output voltage to lessthan 12V Pk-Pk and a total energy of less than 26 microjoules
Available in a range of inch and metric thread lengths and sizes and cable lengths of 3 or 10 meters Consult factory for additional details
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Ordering Part Thread Length (A) Thread Size (B) Cable Length (C) Conduit Thread
70085-3030-111 1500 (3810) 58-18 UNF-2A 3 m 12 NPT70085-3030-112 2750 (6885) 58-18 UNF-2A 3 m 12 NPT70085-3030-113 4000 (1016) 58-18 UNF-2A 3 m 12 NPT70085-3030-114 6000 (1524) 58-18 UNF-2A 3 m 12 NPT70085-3030-211 1500 (3810) 58-18 UNF-2A 12 NPT70085-3030-212 2750 (6885) 58-18 UNF-2A 12 NPT70085-3030-213 4000 (1016) 58-18 UNF-2A 12 NPT70085-3030-214 6000 (1524) 58-18 UNF-2A 12 NPT70085-3030-222 2750 (6885) 12 NPT70085-3030-235 1575 (4000) M16 x 15 6g 10 m G 1270085-3030-237 3937 (1000) M16 x 15 6g 10 m G 12
THREAD SIZE
20
10 m10 m10 m10 m10 m34-20 UNEF-2A
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Net Weight 14 oz maxOperating Temperature -65 to 95degC
The defined SIL capability is based on the end users safety system architecture and defined diagnostics as outlined in IEC 61508 and IEC 61511 for sensors Single channel devise is insufficient to determine zero speed as part ofthe safety function Consult the factory for additional details (Pages 18-20)
KEY FEATURESCapable of up to a SIL 3 Rating PFH 610 E-09 1h
PFD AVG (T1=20 Years) 535 E-04 DC 90 SFF 91
ApplicationUsed for Speed Take Off
The Side Look Sensor (SLS) has been developed byAI-Tek Instruments for Allison automatic transmis-sions for trucks ranging from light duty vans to over-the-road tractors It is available for Allison AT MTand HT transmissions The new SLS improves onearlier designs developed for Allison to replace amechanical speed system
The SLS is a variable reluctance device that pro-vides electronic transmission speed inputs toengine control systems andor electronic dash-boards It mounts directly on the transmission andemploys a unique magnet configuration thatinduces a magnetic field on the side of the sensorin the path of the rotating transmission gear Thissystem with its fewer mounting parts improvesreliability reduces weight and conserves spaceover the earlier designs
AI-Tek Instruments LLCSide Look Sensor
The new SLS uses a molded glass filled nylon bodyto protect the sensor in harsh truck-operatingenvironments It replaces the old fly-lead designwith an integral standard Packard connectorwhich eliminates the added extra connector cost ofthe old design It is available in single and dualoutput versions
The SLS is manufactured in the United StatesAI-Tek Instruments Distributors stock the SLS foroff-the-shelf maintenance repair and overhaul(MRO) requirements
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188
CONNECTOR MATES WITHPACKARD 12162188
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Outline and Mounting Dimensions
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Specifications
PN 70082-1000-021 AT MT
PN 70082-1000-022 AT MT
PN 70082-1000-023 HT
PN 70082-1000-024 HT
Applications
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Hall Effect Sensors
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for engine timing applications and has developed a line of durable products for
industrial use
With multiple standard variations we offer the widest range of standard catalog
sensors to meet your various design needs The design is flexible to easily meet all
of your application requirements
The Hall Effect sensor can sense each change in target movement regardless of speed
from near zero to 15 kHz frequency range generating a steady pulse train of frequency
proportional to target speed Typically each time a gear tooth (or any ferrous discontinuity)
passes in front of the sensor the output changes state This type of sensor is known as a P
type because it uses N-P-N transistor logic (as opposed to N type which uses P-N-P
transistor logic)
Key features to note are
bull Reverse voltage protection to prevent damage if miswired
bull Extended temperature range
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
AI-Tek has (3) Series of Hall Effect Sensors RH Series DH Series and BH Series
Below is a quick reference chart of the features of each of the series
It is the customers responsibility to determine whether the product is proper for customers use and application
PERFORMANCE RH SERIES DH SERIES BH SERIES1 Output Channel 1 Output Channel 2 Output Channels
+ Direction
Zero speed to 15kHz operation X X X
Standard gear tooth sensing X X X
Fine 32 DP Capability X X
Single tooth valley target X X
No installation alignment X
Extended airgap
(0100rdquo+ for 12DP and coarser targets) X X
General noise immunity X X X
EMI Hardened X X
High tolerance to target run-out X X
Self-calibrating X X
Direction Sensing X
Lowest cost X
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Distance Amplifier)For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
34-20 DH1612-113 TTL Cable 15 3375
34-20 DH1622-113 ST Cable 15 3375
34-20 RH1612-013 TTL Cable 15 3375
34-20 RH1622-013 ST Cable 15 3375
34-20 DH1612-114 TTL Cable 275 4625
34-20 DH1622-114 ST Cable 275 462534-20 RH1612-014 TTL Cable 275 4625
34-20 RH1622-014 ST Cable 275 462534-20 DH1612-105 TTL Connector 15 3375
34-20 DH1622-105 ST Connector 15 3375
34-20 RH1612-005 TTL Connector 15 3375
34-20 RH1622-005 ST Connector 15 3375
34-20 DH1612-106 TTL Connector 275 4625
34-20 DH1622-106 ST Connector 275 4625
34-20 RH1612-006 TTL Connector 275 4625
34-20 RH1622-006 ST Connector 275 4625
34-20 DH1612-107 TTL Connector 4 6512
34-20 DH1622-107 ST Connector 4 6512
34-20 RH1612-007 TTL Connector 4 6512
34-20 RH1622-007 ST Connector 4 6512
34-20 DH1612-109 TTL Wires 15 3375
34-20 DH1622-109 ST Wires 15 3375
34-20 RH1612-009 TTL Wires 15 3375
34-20 RH1622-009 ST Wires 15 3375
34-20 DH1612-110 TTL Wires 275 4625
34-20 DH1622-110 ST Wires 275 4625
34-20 RH1612-010 TTL Wires 275 4625
34-20 RH1622-010 ST Wires 275 4625
34-20 RH1612-025 TTL Cable 1375 475 X
34-20 RH1612-026 TTL Cable 15 3375 X
34-20 RH1622-026 ST Cable 15 3375 X
34-20 RH1612-027 TTL Cable 275 4625 X
34-20 RH1622-027 ST Cable 275 4625 X
Active Sensor Selection Guide
RH amp DH Series
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Active Sensor Selection Guide
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
58-18 DH1512-113 TTL Cable 15 3375
58-18 DH1522-113 ST Cable 15 3375
58-18 RH1512-013 TTL Cable 15 3375
58-18 RH1522-013 ST Cable 15 3375
58-18 DH1512-114 TTL Cable 275 4625
58-18 DH1522-114 ST Cable 275 4625
58-18 RH1512-014 TTL Cable 275 4625
58-18 RH1522-014 ST Cable 275 4625
58-18 DH1512-105 TTL Connector 15 3375
58-18 DH1522-105 ST Connector 15 3375
58-18 RH1512-005 TTL Connector 15 3375
58-18 RH1522-005 ST Connector 15 3375
58-18 DH1512-106 TTL Connector 275 4625
58-18 DH1522-106 ST Connector 275 4625
58-18 RH1512-006 TTL Connector 275 4625
58-18 RH1522-006 ST Connector 275 4625
58-18 DH1512-107 TTL Connector 4 6512
58-18 DH1522-107 ST Connector 4 6512
58-18 RH1512-007 TTL Connector 4 6512
58-18 RH1522-007 ST Connector 4 6512
58-18 DH1512-109 TTL Cable 15 3375
58-18 DH1522-109 ST Cable 15 3375
58-18 RH1512-009 TTL Cable 15 3375
58-18 RH1522-009 ST Cable 15 3375
58-18 DH1512-110 TTL Cable 275 4625
58-18 DH1522-110 ST Cable 275 4625
58-18 RH1512-010 TTL Cable 275 4625
58-18 RH1522-010 ST Cable 275 4625
58-18 RH1512-026 TTL Cable 15 3375 X
58-18 RH1522-026 ST Cable 15 3375 X
58-18 RH1512-027 TTL Cable 275 4625 X
58-18 RH1522-027 ST Cable 275 4625 X
58-18 DH1512-210 ST Cable 275 275
58-18 DH1522-210 ST Cable 275 275
38-32 RH1320-001 ST Wires 163 163
38-32 RH1320-003 ST Cable 163 163
38-24 RH1320-009 ST Wires 163 163
38-24 RH1320-010 ST Cable 163 163
38-24 RH1320-012 ST Cable 3 3
38 Dia RH1320-005 ST Wires
38 Dia RH1320-006 ST Cable
NOTE RTD Temperature Sensing Feature
_ _
_ _
RH amp DH Series
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Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +46 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage
-30 Vdc
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap005 to 020 with a 24 diametral pitch gear005 to 030 with a 20 diametral pitch gear005 to 050 with a 12 diametral pitch gear005 to 075 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B 5NaCl for 48 hrs No visible corrosion
Humidity92 RH 40degC for 90 hrsNo visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 20 Irradiated cross-linked polyolefin
125degC
Rotational alignment of sensing face is notrequired for optimum output signal
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Note Either output will work with any AI-Tek Tachometer
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INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
RH1512-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-014 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-014 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
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RH Series
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
RH1512-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1522-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1512-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
RH1522-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1512-007 625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1522-007 625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
RH1612-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1622-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1612-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
RH1622-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1612-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1622-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) Supply Tracking
Net Weight 7 oz max
Fully Threaded with Leads
Part Num Thread A Dimension Lead Length Output
RH1512-009 625-18 UNF-2A 1500 (38100) 12(304) TTL Compatible
RH1522-009 625-18 UNF-2A 1500 (38100) 12(304) Supply Tracking
RH1512-010 625-18 UNF-2A 2750 (69850) 12(304) TTL Compatible
RH1522-010 625-18 UNF-2A 2750 (69850) 12(304) Supply Tracking
RH1612-009 750-20 UNEF-2A 1500 (38100) 12(304) TTL Compatible
RH1622-009 750-20 UNEF-2A 1500 (38100) 12(304) Supply Tracking
RH1612-010 750-20 UNEF-2A 2750 (69850) 12(304) TTL Compatible
RH1622-010 750-20 UNEF-2A 2750 (69850) 12(304) Supply Tracking
Net Weight 3 oz max Dimensions in inches and (mm)
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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ARH Series
29
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
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RH Series
30
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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Dim A
Dimension A
1630
RH Series
1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
31
DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
38
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
40
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
44
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
46
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Steel Split Gear
Solid Steel Gear
47
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
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Printed in USA1300-O 712
![Page 13: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/13.jpg)
Passive Speed Sensors
Dimensions in inches and (mm)
General Purpose
Ordering Part Thread Length (A)70085-1010-007 812 (2062)70085-1010-056
Ordering Part Thread Length (A)70085-1010-086 812 (2062)70085-1010-355 812 (2062)
Performance Curves
High Sensitivity
38 ndash 24 FAMILY
SpecificationsOutput Voltage (Standard) 21 V (P-P)Output Voltage (Guarantee Point) 16 V (P-P)
Typical Inductance 22 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 6 in (152 cm)Net Weight 2 oz max
SpecificationsOutput Voltage (Standard) 55 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length -086 18 in (457 cm)Cable Length -355 40 in (1016 cm)Net Weight 2 oz max
Performance Curves
Based on 20 DP Gear
Based on 20 DP Gear
3625 (9208)
DC Resistance 125 ohms max
DC Resistance 960 ohms maxOutput Voltage (Guarantee Point) 42V (P-P)
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Passive Speed Sensors
Dimensions in inches and (mm)
38 ndash 24 FAMILY
General Purpose ndash High Temperature
Ordering Part Thread Length (A)70085-1010-041 812 (2062)70085-1010-428 1500 (3810)70085-1010-458
Performance Curves
SpecificationsOutput Voltage (Standard) 24 V (P-P)Output Voltage (Guarantee Point) 20 V (P-P)
Typical Inductance 21 mH refOutput Polarity White lead positiveOperating Temperature -73 to +232degCLead Length 40 in (1 m)Net Weight 2 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Ordering Part Thread Length (A)70085-1010-174 812 (2062)
Performance Curves
High Sensitivity - High Temperature
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 36V (P-P)
Output Polarity White lead positiveOperating Temperature -65 to +220degCCable Length 60 in (15 m)Net Weight 2 oz max
3625 (9208)
DC Resistance 125 ohms max
DC Resistance 705 ohms maxTypical Inductance 150 mH ref
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)
70085-8080-001 1500 (3810)
Full Thread ndash High Sensitivity
Smooth Body ndash High Sensitivity
Ordering Part 70085-1010-314 1375 (3493)70085-8080-004 2500 (6350)
Performance Curves
Performance Curves
38 ndash 24 FAMILY
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -55 to + 107degCLead Length 6 in (152cm)Net Weight 1 oz max
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -30 to +85degCLead Length -004 6 in (152cm)Cable Length -314 10ft (305m)Net Weight 3 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Length (A)
70085-1010-120 1250 (3175)
DC Resistance 960 ohms max
DC Resistance 960 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)
Performance Curves
Ordering Part Thread Length (A) (B)70085-1010-024 687 (1745) 313 (795)70085-1010-472 687 (1745) 500 (1270)70085-1010-227 1687 (4285) 313 (795)
SpecificationsOutput Voltage (Standard) 47 V (P-P)Output Voltage (Guarantee Point) 04 V (P-P)DC Resistance 125 ohms maxTypical Inductance 5-12 mH refOutput Polarity White lead positiveOperating Temperature -73 to 232degCLead Length 8 in (203 cm)Cable Length -472 60 in (15 m)Net Weight 2 oz max
B as ed on 20 DP G ear
and cable for extra protection Extra locknut provided
General Purpose - High Temperature
14 - 40 FAMILY
Egress is a 2-conductor AWG 26 shielded Teflon cable with 3 long shrink tubing over housing
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-037 500 (1270)70085-1010-299 1250 (3175)
Performance Curves
General Purpose ndash High Temperature
SpecificationsOutput Voltage (Standard) 13 V (P-P)Output Voltage (Guarantee Point) 6 V (P-P)DC Resistance 190 ohms maxTypical Inductance 10 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 18 in (457 cm)Net Weight 1 oz max
10 - 32 FAMILY
High Sensitivity
Ordering Part Thread Length (A)70085-1010-182 500 (1270)70085-1010-289 1250 (3175)
Performance Curves
SpecificationsOutput Voltage (Standard) 6 V (P-P)Output Voltage (Guarantee Point) 3 V (P-P)
Typical Inductance 2 mH refOutput Polarity White lead positiveOperating Temperature -73 to +150degCLead Length 18 in (457 cm)Net Weight 1 oz max
Based on 20 DP Gear
Based on 20 DP Gear
DC Resistance 50 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)Based on 8 DP Gear
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-413 1500 (3810)70085-1010-005 1875 (4763)70085-1010-327 2750 (6985)70085-1010-328 4000 (10160)70085-1010-414 6000 (15240)
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positiveOperating Temperature -65 to +95degCLead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1Groups E F G Temp Code T3C
Ordering Part Thread Length (A)70085-1010-081 1500 (3810)70085-1010-411 1875 (4763)70085-1010-329 2750 (6985)70085-1010-330 4000 (10160)70085-1010-412 6000 (15240)
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Lead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Based on 8 DP Gear
Groups E F G Temp Code T3C
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ULATEXCSA Sensors The products on pgs 18-20 are capable of up to a SIL 3 rating
ULATEXCSA Sensors
ATEX Group II Category 3G Zone 2
ATEX Group II Category 3G Zone 2
18
Operating Temperature -65 to 95degC
Passive Speed Sensors
Dimensions in inches and (mm)
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-403 1500 (3810)
70085-1010-405 2750
70085-1010-415 4000 (10160)70085-1010-416 6000 (15240)
Performance Curves
SpecificationsOutput Voltage (Standard) 90 V (P-P)Output Voltage (Guarantee Point) 94 V (P-P)DC Resistance 660 ohms maxTypical Inductance 210 mH maxOutput Polarity White lead positiveOperating Temperature -55 to +220deg CMounting Thread -0405 34 - 20 UNEF-2ACable Length 15 ft (457 m)Net Weight 16 oz max
Ordering Part Thread Length (A)70085-1010-404 1500 (3810)
70085-1010-406 2750 (6985)70085-1010-417 4000 (10160)70085-1010-420 6000 (15240)
SpecificationsOutput Voltage (Standard) 60V (P-P)Output Voltage (Guarantee Point) 134V (P-P)DC Resistance 210 ohms maxTypical Inductance 75 mH maxOutput Polarity White lead positiveOperating Temperature -20 to +220degCCable Length 15 ft (457m)Net Weight 16 oz max
Performance Curves
Based on 20 DP Gear
Based on 8 DP Gear
THREAD SIZE
FM ATEX Sensors
THREAD SIZE(6985)
58-18 UNF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
2750 (6985) 4000 (10160) 6000 (15240)
58-18 UNF-2A70085-1010-544 1875 (4763)
70085-1010-541 1875 (4763) 34-20 UNEF-2A70085-1010-542 34-20 UNEF-2A70085-1010-540 34-20 UNEF-2A70085-1010-543 34-20 UNEF-2A
34-20 UNEF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
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Thread Size (B)
Thread Size (B)
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FM ATEX Sensors
Passive Speed Sensors LISTED PRODUCT
Performance Curves
Based on 8 DP Gear
IEC EX Sensors
Rating ATEX and IEC Ex Equip Group II Category 2G Gas Group IIC Zone 1Sensor must be used with MTL 7764ac intrinsic barrierUser must install sensor in such a manner as to limit the output voltage to lessthan 12V Pk-Pk and a total energy of less than 26 microjoules
Available in a range of inch and metric thread lengths and sizes and cable lengths of 3 or 10 meters Consult factory for additional details
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Ordering Part Thread Length (A) Thread Size (B) Cable Length (C) Conduit Thread
70085-3030-111 1500 (3810) 58-18 UNF-2A 3 m 12 NPT70085-3030-112 2750 (6885) 58-18 UNF-2A 3 m 12 NPT70085-3030-113 4000 (1016) 58-18 UNF-2A 3 m 12 NPT70085-3030-114 6000 (1524) 58-18 UNF-2A 3 m 12 NPT70085-3030-211 1500 (3810) 58-18 UNF-2A 12 NPT70085-3030-212 2750 (6885) 58-18 UNF-2A 12 NPT70085-3030-213 4000 (1016) 58-18 UNF-2A 12 NPT70085-3030-214 6000 (1524) 58-18 UNF-2A 12 NPT70085-3030-222 2750 (6885) 12 NPT70085-3030-235 1575 (4000) M16 x 15 6g 10 m G 1270085-3030-237 3937 (1000) M16 x 15 6g 10 m G 12
THREAD SIZE
20
10 m10 m10 m10 m10 m34-20 UNEF-2A
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Net Weight 14 oz maxOperating Temperature -65 to 95degC
The defined SIL capability is based on the end users safety system architecture and defined diagnostics as outlined in IEC 61508 and IEC 61511 for sensors Single channel devise is insufficient to determine zero speed as part ofthe safety function Consult the factory for additional details (Pages 18-20)
KEY FEATURESCapable of up to a SIL 3 Rating PFH 610 E-09 1h
PFD AVG (T1=20 Years) 535 E-04 DC 90 SFF 91
ApplicationUsed for Speed Take Off
The Side Look Sensor (SLS) has been developed byAI-Tek Instruments for Allison automatic transmis-sions for trucks ranging from light duty vans to over-the-road tractors It is available for Allison AT MTand HT transmissions The new SLS improves onearlier designs developed for Allison to replace amechanical speed system
The SLS is a variable reluctance device that pro-vides electronic transmission speed inputs toengine control systems andor electronic dash-boards It mounts directly on the transmission andemploys a unique magnet configuration thatinduces a magnetic field on the side of the sensorin the path of the rotating transmission gear Thissystem with its fewer mounting parts improvesreliability reduces weight and conserves spaceover the earlier designs
AI-Tek Instruments LLCSide Look Sensor
The new SLS uses a molded glass filled nylon bodyto protect the sensor in harsh truck-operatingenvironments It replaces the old fly-lead designwith an integral standard Packard connectorwhich eliminates the added extra connector cost ofthe old design It is available in single and dualoutput versions
The SLS is manufactured in the United StatesAI-Tek Instruments Distributors stock the SLS foroff-the-shelf maintenance repair and overhaul(MRO) requirements
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188
CONNECTOR MATES WITHPACKARD 12162188
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Outline and Mounting Dimensions
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Specifications
PN 70082-1000-021 AT MT
PN 70082-1000-022 AT MT
PN 70082-1000-023 HT
PN 70082-1000-024 HT
Applications
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Hall Effect Sensors
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for engine timing applications and has developed a line of durable products for
industrial use
With multiple standard variations we offer the widest range of standard catalog
sensors to meet your various design needs The design is flexible to easily meet all
of your application requirements
The Hall Effect sensor can sense each change in target movement regardless of speed
from near zero to 15 kHz frequency range generating a steady pulse train of frequency
proportional to target speed Typically each time a gear tooth (or any ferrous discontinuity)
passes in front of the sensor the output changes state This type of sensor is known as a P
type because it uses N-P-N transistor logic (as opposed to N type which uses P-N-P
transistor logic)
Key features to note are
bull Reverse voltage protection to prevent damage if miswired
bull Extended temperature range
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
AI-Tek has (3) Series of Hall Effect Sensors RH Series DH Series and BH Series
Below is a quick reference chart of the features of each of the series
It is the customers responsibility to determine whether the product is proper for customers use and application
PERFORMANCE RH SERIES DH SERIES BH SERIES1 Output Channel 1 Output Channel 2 Output Channels
+ Direction
Zero speed to 15kHz operation X X X
Standard gear tooth sensing X X X
Fine 32 DP Capability X X
Single tooth valley target X X
No installation alignment X
Extended airgap
(0100rdquo+ for 12DP and coarser targets) X X
General noise immunity X X X
EMI Hardened X X
High tolerance to target run-out X X
Self-calibrating X X
Direction Sensing X
Lowest cost X
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Distance Amplifier)For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
34-20 DH1612-113 TTL Cable 15 3375
34-20 DH1622-113 ST Cable 15 3375
34-20 RH1612-013 TTL Cable 15 3375
34-20 RH1622-013 ST Cable 15 3375
34-20 DH1612-114 TTL Cable 275 4625
34-20 DH1622-114 ST Cable 275 462534-20 RH1612-014 TTL Cable 275 4625
34-20 RH1622-014 ST Cable 275 462534-20 DH1612-105 TTL Connector 15 3375
34-20 DH1622-105 ST Connector 15 3375
34-20 RH1612-005 TTL Connector 15 3375
34-20 RH1622-005 ST Connector 15 3375
34-20 DH1612-106 TTL Connector 275 4625
34-20 DH1622-106 ST Connector 275 4625
34-20 RH1612-006 TTL Connector 275 4625
34-20 RH1622-006 ST Connector 275 4625
34-20 DH1612-107 TTL Connector 4 6512
34-20 DH1622-107 ST Connector 4 6512
34-20 RH1612-007 TTL Connector 4 6512
34-20 RH1622-007 ST Connector 4 6512
34-20 DH1612-109 TTL Wires 15 3375
34-20 DH1622-109 ST Wires 15 3375
34-20 RH1612-009 TTL Wires 15 3375
34-20 RH1622-009 ST Wires 15 3375
34-20 DH1612-110 TTL Wires 275 4625
34-20 DH1622-110 ST Wires 275 4625
34-20 RH1612-010 TTL Wires 275 4625
34-20 RH1622-010 ST Wires 275 4625
34-20 RH1612-025 TTL Cable 1375 475 X
34-20 RH1612-026 TTL Cable 15 3375 X
34-20 RH1622-026 ST Cable 15 3375 X
34-20 RH1612-027 TTL Cable 275 4625 X
34-20 RH1622-027 ST Cable 275 4625 X
Active Sensor Selection Guide
RH amp DH Series
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Active Sensor Selection Guide
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
58-18 DH1512-113 TTL Cable 15 3375
58-18 DH1522-113 ST Cable 15 3375
58-18 RH1512-013 TTL Cable 15 3375
58-18 RH1522-013 ST Cable 15 3375
58-18 DH1512-114 TTL Cable 275 4625
58-18 DH1522-114 ST Cable 275 4625
58-18 RH1512-014 TTL Cable 275 4625
58-18 RH1522-014 ST Cable 275 4625
58-18 DH1512-105 TTL Connector 15 3375
58-18 DH1522-105 ST Connector 15 3375
58-18 RH1512-005 TTL Connector 15 3375
58-18 RH1522-005 ST Connector 15 3375
58-18 DH1512-106 TTL Connector 275 4625
58-18 DH1522-106 ST Connector 275 4625
58-18 RH1512-006 TTL Connector 275 4625
58-18 RH1522-006 ST Connector 275 4625
58-18 DH1512-107 TTL Connector 4 6512
58-18 DH1522-107 ST Connector 4 6512
58-18 RH1512-007 TTL Connector 4 6512
58-18 RH1522-007 ST Connector 4 6512
58-18 DH1512-109 TTL Cable 15 3375
58-18 DH1522-109 ST Cable 15 3375
58-18 RH1512-009 TTL Cable 15 3375
58-18 RH1522-009 ST Cable 15 3375
58-18 DH1512-110 TTL Cable 275 4625
58-18 DH1522-110 ST Cable 275 4625
58-18 RH1512-010 TTL Cable 275 4625
58-18 RH1522-010 ST Cable 275 4625
58-18 RH1512-026 TTL Cable 15 3375 X
58-18 RH1522-026 ST Cable 15 3375 X
58-18 RH1512-027 TTL Cable 275 4625 X
58-18 RH1522-027 ST Cable 275 4625 X
58-18 DH1512-210 ST Cable 275 275
58-18 DH1522-210 ST Cable 275 275
38-32 RH1320-001 ST Wires 163 163
38-32 RH1320-003 ST Cable 163 163
38-24 RH1320-009 ST Wires 163 163
38-24 RH1320-010 ST Cable 163 163
38-24 RH1320-012 ST Cable 3 3
38 Dia RH1320-005 ST Wires
38 Dia RH1320-006 ST Cable
NOTE RTD Temperature Sensing Feature
_ _
_ _
RH amp DH Series
25
AI-
Tek
Instr
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C
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TU
SA
27273434
27273434
283535
28
283535
28
283535
28
283535
28
283535
2829292929363631313131313131
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +46 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage
-30 Vdc
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap005 to 020 with a 24 diametral pitch gear005 to 030 with a 20 diametral pitch gear005 to 050 with a 12 diametral pitch gear005 to 075 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B 5NaCl for 48 hrs No visible corrosion
Humidity92 RH 40degC for 90 hrsNo visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 20 Irradiated cross-linked polyolefin
125degC
Rotational alignment of sensing face is notrequired for optimum output signal
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Note Either output will work with any AI-Tek Tachometer
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Instr
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CT
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A
RH Series
26
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
RH1512-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-014 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-014 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
AI-
Tek
Instr
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C
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TU
SA
750-20 UNEF-2A
750-20 UNEF-2A
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
27
RH Series
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
RH1512-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1522-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1512-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
RH1522-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1512-007 625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1522-007 625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
RH1612-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1622-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1612-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
RH1622-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1612-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1622-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) Supply Tracking
Net Weight 7 oz max
Fully Threaded with Leads
Part Num Thread A Dimension Lead Length Output
RH1512-009 625-18 UNF-2A 1500 (38100) 12(304) TTL Compatible
RH1522-009 625-18 UNF-2A 1500 (38100) 12(304) Supply Tracking
RH1512-010 625-18 UNF-2A 2750 (69850) 12(304) TTL Compatible
RH1522-010 625-18 UNF-2A 2750 (69850) 12(304) Supply Tracking
RH1612-009 750-20 UNEF-2A 1500 (38100) 12(304) TTL Compatible
RH1622-009 750-20 UNEF-2A 1500 (38100) 12(304) Supply Tracking
RH1612-010 750-20 UNEF-2A 2750 (69850) 12(304) TTL Compatible
RH1622-010 750-20 UNEF-2A 2750 (69850) 12(304) Supply Tracking
Net Weight 3 oz max Dimensions in inches and (mm)
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A
RH Series
28
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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Instr
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ARH Series
29
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
AI-
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C
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CT
US
A
RH Series
30
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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Instr
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C
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CT
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Dim A
Dimension A
1630
RH Series
1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
31
DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
AI-
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Instr
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C
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
AI-
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
AI-
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
38
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
AI-
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
AI-
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A
(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 14: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/14.jpg)
Passive Speed Sensors
Dimensions in inches and (mm)
38 ndash 24 FAMILY
General Purpose ndash High Temperature
Ordering Part Thread Length (A)70085-1010-041 812 (2062)70085-1010-428 1500 (3810)70085-1010-458
Performance Curves
SpecificationsOutput Voltage (Standard) 24 V (P-P)Output Voltage (Guarantee Point) 20 V (P-P)
Typical Inductance 21 mH refOutput Polarity White lead positiveOperating Temperature -73 to +232degCLead Length 40 in (1 m)Net Weight 2 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Ordering Part Thread Length (A)70085-1010-174 812 (2062)
Performance Curves
High Sensitivity - High Temperature
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 36V (P-P)
Output Polarity White lead positiveOperating Temperature -65 to +220degCCable Length 60 in (15 m)Net Weight 2 oz max
3625 (9208)
DC Resistance 125 ohms max
DC Resistance 705 ohms maxTypical Inductance 150 mH ref
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)
70085-8080-001 1500 (3810)
Full Thread ndash High Sensitivity
Smooth Body ndash High Sensitivity
Ordering Part 70085-1010-314 1375 (3493)70085-8080-004 2500 (6350)
Performance Curves
Performance Curves
38 ndash 24 FAMILY
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -55 to + 107degCLead Length 6 in (152cm)Net Weight 1 oz max
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -30 to +85degCLead Length -004 6 in (152cm)Cable Length -314 10ft (305m)Net Weight 3 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Length (A)
70085-1010-120 1250 (3175)
DC Resistance 960 ohms max
DC Resistance 960 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)
Performance Curves
Ordering Part Thread Length (A) (B)70085-1010-024 687 (1745) 313 (795)70085-1010-472 687 (1745) 500 (1270)70085-1010-227 1687 (4285) 313 (795)
SpecificationsOutput Voltage (Standard) 47 V (P-P)Output Voltage (Guarantee Point) 04 V (P-P)DC Resistance 125 ohms maxTypical Inductance 5-12 mH refOutput Polarity White lead positiveOperating Temperature -73 to 232degCLead Length 8 in (203 cm)Cable Length -472 60 in (15 m)Net Weight 2 oz max
B as ed on 20 DP G ear
and cable for extra protection Extra locknut provided
General Purpose - High Temperature
14 - 40 FAMILY
Egress is a 2-conductor AWG 26 shielded Teflon cable with 3 long shrink tubing over housing
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16
Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-037 500 (1270)70085-1010-299 1250 (3175)
Performance Curves
General Purpose ndash High Temperature
SpecificationsOutput Voltage (Standard) 13 V (P-P)Output Voltage (Guarantee Point) 6 V (P-P)DC Resistance 190 ohms maxTypical Inductance 10 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 18 in (457 cm)Net Weight 1 oz max
10 - 32 FAMILY
High Sensitivity
Ordering Part Thread Length (A)70085-1010-182 500 (1270)70085-1010-289 1250 (3175)
Performance Curves
SpecificationsOutput Voltage (Standard) 6 V (P-P)Output Voltage (Guarantee Point) 3 V (P-P)
Typical Inductance 2 mH refOutput Polarity White lead positiveOperating Temperature -73 to +150degCLead Length 18 in (457 cm)Net Weight 1 oz max
Based on 20 DP Gear
Based on 20 DP Gear
DC Resistance 50 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)Based on 8 DP Gear
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-413 1500 (3810)70085-1010-005 1875 (4763)70085-1010-327 2750 (6985)70085-1010-328 4000 (10160)70085-1010-414 6000 (15240)
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positiveOperating Temperature -65 to +95degCLead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1Groups E F G Temp Code T3C
Ordering Part Thread Length (A)70085-1010-081 1500 (3810)70085-1010-411 1875 (4763)70085-1010-329 2750 (6985)70085-1010-330 4000 (10160)70085-1010-412 6000 (15240)
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Lead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Based on 8 DP Gear
Groups E F G Temp Code T3C
ASU T
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ULATEXCSA Sensors The products on pgs 18-20 are capable of up to a SIL 3 rating
ULATEXCSA Sensors
ATEX Group II Category 3G Zone 2
ATEX Group II Category 3G Zone 2
18
Operating Temperature -65 to 95degC
Passive Speed Sensors
Dimensions in inches and (mm)
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-403 1500 (3810)
70085-1010-405 2750
70085-1010-415 4000 (10160)70085-1010-416 6000 (15240)
Performance Curves
SpecificationsOutput Voltage (Standard) 90 V (P-P)Output Voltage (Guarantee Point) 94 V (P-P)DC Resistance 660 ohms maxTypical Inductance 210 mH maxOutput Polarity White lead positiveOperating Temperature -55 to +220deg CMounting Thread -0405 34 - 20 UNEF-2ACable Length 15 ft (457 m)Net Weight 16 oz max
Ordering Part Thread Length (A)70085-1010-404 1500 (3810)
70085-1010-406 2750 (6985)70085-1010-417 4000 (10160)70085-1010-420 6000 (15240)
SpecificationsOutput Voltage (Standard) 60V (P-P)Output Voltage (Guarantee Point) 134V (P-P)DC Resistance 210 ohms maxTypical Inductance 75 mH maxOutput Polarity White lead positiveOperating Temperature -20 to +220degCCable Length 15 ft (457m)Net Weight 16 oz max
Performance Curves
Based on 20 DP Gear
Based on 8 DP Gear
THREAD SIZE
FM ATEX Sensors
THREAD SIZE(6985)
58-18 UNF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
2750 (6985) 4000 (10160) 6000 (15240)
58-18 UNF-2A70085-1010-544 1875 (4763)
70085-1010-541 1875 (4763) 34-20 UNEF-2A70085-1010-542 34-20 UNEF-2A70085-1010-540 34-20 UNEF-2A70085-1010-543 34-20 UNEF-2A
34-20 UNEF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
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Thread Size (B)
Thread Size (B)
19
FM ATEX Sensors
Passive Speed Sensors LISTED PRODUCT
Performance Curves
Based on 8 DP Gear
IEC EX Sensors
Rating ATEX and IEC Ex Equip Group II Category 2G Gas Group IIC Zone 1Sensor must be used with MTL 7764ac intrinsic barrierUser must install sensor in such a manner as to limit the output voltage to lessthan 12V Pk-Pk and a total energy of less than 26 microjoules
Available in a range of inch and metric thread lengths and sizes and cable lengths of 3 or 10 meters Consult factory for additional details
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Ordering Part Thread Length (A) Thread Size (B) Cable Length (C) Conduit Thread
70085-3030-111 1500 (3810) 58-18 UNF-2A 3 m 12 NPT70085-3030-112 2750 (6885) 58-18 UNF-2A 3 m 12 NPT70085-3030-113 4000 (1016) 58-18 UNF-2A 3 m 12 NPT70085-3030-114 6000 (1524) 58-18 UNF-2A 3 m 12 NPT70085-3030-211 1500 (3810) 58-18 UNF-2A 12 NPT70085-3030-212 2750 (6885) 58-18 UNF-2A 12 NPT70085-3030-213 4000 (1016) 58-18 UNF-2A 12 NPT70085-3030-214 6000 (1524) 58-18 UNF-2A 12 NPT70085-3030-222 2750 (6885) 12 NPT70085-3030-235 1575 (4000) M16 x 15 6g 10 m G 1270085-3030-237 3937 (1000) M16 x 15 6g 10 m G 12
THREAD SIZE
20
10 m10 m10 m10 m10 m34-20 UNEF-2A
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Net Weight 14 oz maxOperating Temperature -65 to 95degC
The defined SIL capability is based on the end users safety system architecture and defined diagnostics as outlined in IEC 61508 and IEC 61511 for sensors Single channel devise is insufficient to determine zero speed as part ofthe safety function Consult the factory for additional details (Pages 18-20)
KEY FEATURESCapable of up to a SIL 3 Rating PFH 610 E-09 1h
PFD AVG (T1=20 Years) 535 E-04 DC 90 SFF 91
ApplicationUsed for Speed Take Off
The Side Look Sensor (SLS) has been developed byAI-Tek Instruments for Allison automatic transmis-sions for trucks ranging from light duty vans to over-the-road tractors It is available for Allison AT MTand HT transmissions The new SLS improves onearlier designs developed for Allison to replace amechanical speed system
The SLS is a variable reluctance device that pro-vides electronic transmission speed inputs toengine control systems andor electronic dash-boards It mounts directly on the transmission andemploys a unique magnet configuration thatinduces a magnetic field on the side of the sensorin the path of the rotating transmission gear Thissystem with its fewer mounting parts improvesreliability reduces weight and conserves spaceover the earlier designs
AI-Tek Instruments LLCSide Look Sensor
The new SLS uses a molded glass filled nylon bodyto protect the sensor in harsh truck-operatingenvironments It replaces the old fly-lead designwith an integral standard Packard connectorwhich eliminates the added extra connector cost ofthe old design It is available in single and dualoutput versions
The SLS is manufactured in the United StatesAI-Tek Instruments Distributors stock the SLS foroff-the-shelf maintenance repair and overhaul(MRO) requirements
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188
CONNECTOR MATES WITHPACKARD 12162188
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Specifications
PN 70082-1000-021 AT MT
PN 70082-1000-022 AT MT
PN 70082-1000-023 HT
PN 70082-1000-024 HT
Applications
22
Hall Effect Sensors
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for engine timing applications and has developed a line of durable products for
industrial use
With multiple standard variations we offer the widest range of standard catalog
sensors to meet your various design needs The design is flexible to easily meet all
of your application requirements
The Hall Effect sensor can sense each change in target movement regardless of speed
from near zero to 15 kHz frequency range generating a steady pulse train of frequency
proportional to target speed Typically each time a gear tooth (or any ferrous discontinuity)
passes in front of the sensor the output changes state This type of sensor is known as a P
type because it uses N-P-N transistor logic (as opposed to N type which uses P-N-P
transistor logic)
Key features to note are
bull Reverse voltage protection to prevent damage if miswired
bull Extended temperature range
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
AI-Tek has (3) Series of Hall Effect Sensors RH Series DH Series and BH Series
Below is a quick reference chart of the features of each of the series
It is the customers responsibility to determine whether the product is proper for customers use and application
PERFORMANCE RH SERIES DH SERIES BH SERIES1 Output Channel 1 Output Channel 2 Output Channels
+ Direction
Zero speed to 15kHz operation X X X
Standard gear tooth sensing X X X
Fine 32 DP Capability X X
Single tooth valley target X X
No installation alignment X
Extended airgap
(0100rdquo+ for 12DP and coarser targets) X X
General noise immunity X X X
EMI Hardened X X
High tolerance to target run-out X X
Self-calibrating X X
Direction Sensing X
Lowest cost X
23
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Distance Amplifier)For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
34-20 DH1612-113 TTL Cable 15 3375
34-20 DH1622-113 ST Cable 15 3375
34-20 RH1612-013 TTL Cable 15 3375
34-20 RH1622-013 ST Cable 15 3375
34-20 DH1612-114 TTL Cable 275 4625
34-20 DH1622-114 ST Cable 275 462534-20 RH1612-014 TTL Cable 275 4625
34-20 RH1622-014 ST Cable 275 462534-20 DH1612-105 TTL Connector 15 3375
34-20 DH1622-105 ST Connector 15 3375
34-20 RH1612-005 TTL Connector 15 3375
34-20 RH1622-005 ST Connector 15 3375
34-20 DH1612-106 TTL Connector 275 4625
34-20 DH1622-106 ST Connector 275 4625
34-20 RH1612-006 TTL Connector 275 4625
34-20 RH1622-006 ST Connector 275 4625
34-20 DH1612-107 TTL Connector 4 6512
34-20 DH1622-107 ST Connector 4 6512
34-20 RH1612-007 TTL Connector 4 6512
34-20 RH1622-007 ST Connector 4 6512
34-20 DH1612-109 TTL Wires 15 3375
34-20 DH1622-109 ST Wires 15 3375
34-20 RH1612-009 TTL Wires 15 3375
34-20 RH1622-009 ST Wires 15 3375
34-20 DH1612-110 TTL Wires 275 4625
34-20 DH1622-110 ST Wires 275 4625
34-20 RH1612-010 TTL Wires 275 4625
34-20 RH1622-010 ST Wires 275 4625
34-20 RH1612-025 TTL Cable 1375 475 X
34-20 RH1612-026 TTL Cable 15 3375 X
34-20 RH1622-026 ST Cable 15 3375 X
34-20 RH1612-027 TTL Cable 275 4625 X
34-20 RH1622-027 ST Cable 275 4625 X
Active Sensor Selection Guide
RH amp DH Series
24
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Active Sensor Selection Guide
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
58-18 DH1512-113 TTL Cable 15 3375
58-18 DH1522-113 ST Cable 15 3375
58-18 RH1512-013 TTL Cable 15 3375
58-18 RH1522-013 ST Cable 15 3375
58-18 DH1512-114 TTL Cable 275 4625
58-18 DH1522-114 ST Cable 275 4625
58-18 RH1512-014 TTL Cable 275 4625
58-18 RH1522-014 ST Cable 275 4625
58-18 DH1512-105 TTL Connector 15 3375
58-18 DH1522-105 ST Connector 15 3375
58-18 RH1512-005 TTL Connector 15 3375
58-18 RH1522-005 ST Connector 15 3375
58-18 DH1512-106 TTL Connector 275 4625
58-18 DH1522-106 ST Connector 275 4625
58-18 RH1512-006 TTL Connector 275 4625
58-18 RH1522-006 ST Connector 275 4625
58-18 DH1512-107 TTL Connector 4 6512
58-18 DH1522-107 ST Connector 4 6512
58-18 RH1512-007 TTL Connector 4 6512
58-18 RH1522-007 ST Connector 4 6512
58-18 DH1512-109 TTL Cable 15 3375
58-18 DH1522-109 ST Cable 15 3375
58-18 RH1512-009 TTL Cable 15 3375
58-18 RH1522-009 ST Cable 15 3375
58-18 DH1512-110 TTL Cable 275 4625
58-18 DH1522-110 ST Cable 275 4625
58-18 RH1512-010 TTL Cable 275 4625
58-18 RH1522-010 ST Cable 275 4625
58-18 RH1512-026 TTL Cable 15 3375 X
58-18 RH1522-026 ST Cable 15 3375 X
58-18 RH1512-027 TTL Cable 275 4625 X
58-18 RH1522-027 ST Cable 275 4625 X
58-18 DH1512-210 ST Cable 275 275
58-18 DH1522-210 ST Cable 275 275
38-32 RH1320-001 ST Wires 163 163
38-32 RH1320-003 ST Cable 163 163
38-24 RH1320-009 ST Wires 163 163
38-24 RH1320-010 ST Cable 163 163
38-24 RH1320-012 ST Cable 3 3
38 Dia RH1320-005 ST Wires
38 Dia RH1320-006 ST Cable
NOTE RTD Temperature Sensing Feature
_ _
_ _
RH amp DH Series
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Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +46 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage
-30 Vdc
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap005 to 020 with a 24 diametral pitch gear005 to 030 with a 20 diametral pitch gear005 to 050 with a 12 diametral pitch gear005 to 075 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B 5NaCl for 48 hrs No visible corrosion
Humidity92 RH 40degC for 90 hrsNo visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 20 Irradiated cross-linked polyolefin
125degC
Rotational alignment of sensing face is notrequired for optimum output signal
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Note Either output will work with any AI-Tek Tachometer
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RH Series
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INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
RH1512-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-014 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-014 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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750-20 UNEF-2A
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
27
RH Series
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
RH1512-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1522-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1512-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
RH1522-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1512-007 625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1522-007 625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
RH1612-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1622-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1612-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
RH1622-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1612-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1622-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) Supply Tracking
Net Weight 7 oz max
Fully Threaded with Leads
Part Num Thread A Dimension Lead Length Output
RH1512-009 625-18 UNF-2A 1500 (38100) 12(304) TTL Compatible
RH1522-009 625-18 UNF-2A 1500 (38100) 12(304) Supply Tracking
RH1512-010 625-18 UNF-2A 2750 (69850) 12(304) TTL Compatible
RH1522-010 625-18 UNF-2A 2750 (69850) 12(304) Supply Tracking
RH1612-009 750-20 UNEF-2A 1500 (38100) 12(304) TTL Compatible
RH1622-009 750-20 UNEF-2A 1500 (38100) 12(304) Supply Tracking
RH1612-010 750-20 UNEF-2A 2750 (69850) 12(304) TTL Compatible
RH1622-010 750-20 UNEF-2A 2750 (69850) 12(304) Supply Tracking
Net Weight 3 oz max Dimensions in inches and (mm)
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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ARH Series
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INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
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Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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1630
RH Series
1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
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DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
46
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
50
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 15: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/15.jpg)
Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)
70085-8080-001 1500 (3810)
Full Thread ndash High Sensitivity
Smooth Body ndash High Sensitivity
Ordering Part 70085-1010-314 1375 (3493)70085-8080-004 2500 (6350)
Performance Curves
Performance Curves
38 ndash 24 FAMILY
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -55 to + 107degCLead Length 6 in (152cm)Net Weight 1 oz max
SpecificationsOutput Voltage (Standard) 55 V (P-P)Output Voltage (Guarantee Point) 42 V (P-P)
Typical Inductance 125 mH refOutput Polarity White lead positiveOperating Temperature -30 to +85degCLead Length -004 6 in (152cm)Cable Length -314 10ft (305m)Net Weight 3 oz max
Based on 20 DP Gear
Based on 20 DP Gear
Length (A)
70085-1010-120 1250 (3175)
DC Resistance 960 ohms max
DC Resistance 960 ohms max
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15
Passive Speed Sensors
Dimensions in inches and (mm)
Performance Curves
Ordering Part Thread Length (A) (B)70085-1010-024 687 (1745) 313 (795)70085-1010-472 687 (1745) 500 (1270)70085-1010-227 1687 (4285) 313 (795)
SpecificationsOutput Voltage (Standard) 47 V (P-P)Output Voltage (Guarantee Point) 04 V (P-P)DC Resistance 125 ohms maxTypical Inductance 5-12 mH refOutput Polarity White lead positiveOperating Temperature -73 to 232degCLead Length 8 in (203 cm)Cable Length -472 60 in (15 m)Net Weight 2 oz max
B as ed on 20 DP G ear
and cable for extra protection Extra locknut provided
General Purpose - High Temperature
14 - 40 FAMILY
Egress is a 2-conductor AWG 26 shielded Teflon cable with 3 long shrink tubing over housing
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16
Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-037 500 (1270)70085-1010-299 1250 (3175)
Performance Curves
General Purpose ndash High Temperature
SpecificationsOutput Voltage (Standard) 13 V (P-P)Output Voltage (Guarantee Point) 6 V (P-P)DC Resistance 190 ohms maxTypical Inductance 10 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 18 in (457 cm)Net Weight 1 oz max
10 - 32 FAMILY
High Sensitivity
Ordering Part Thread Length (A)70085-1010-182 500 (1270)70085-1010-289 1250 (3175)
Performance Curves
SpecificationsOutput Voltage (Standard) 6 V (P-P)Output Voltage (Guarantee Point) 3 V (P-P)
Typical Inductance 2 mH refOutput Polarity White lead positiveOperating Temperature -73 to +150degCLead Length 18 in (457 cm)Net Weight 1 oz max
Based on 20 DP Gear
Based on 20 DP Gear
DC Resistance 50 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)Based on 8 DP Gear
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-413 1500 (3810)70085-1010-005 1875 (4763)70085-1010-327 2750 (6985)70085-1010-328 4000 (10160)70085-1010-414 6000 (15240)
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positiveOperating Temperature -65 to +95degCLead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1Groups E F G Temp Code T3C
Ordering Part Thread Length (A)70085-1010-081 1500 (3810)70085-1010-411 1875 (4763)70085-1010-329 2750 (6985)70085-1010-330 4000 (10160)70085-1010-412 6000 (15240)
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Lead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Based on 8 DP Gear
Groups E F G Temp Code T3C
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ULATEXCSA Sensors The products on pgs 18-20 are capable of up to a SIL 3 rating
ULATEXCSA Sensors
ATEX Group II Category 3G Zone 2
ATEX Group II Category 3G Zone 2
18
Operating Temperature -65 to 95degC
Passive Speed Sensors
Dimensions in inches and (mm)
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-403 1500 (3810)
70085-1010-405 2750
70085-1010-415 4000 (10160)70085-1010-416 6000 (15240)
Performance Curves
SpecificationsOutput Voltage (Standard) 90 V (P-P)Output Voltage (Guarantee Point) 94 V (P-P)DC Resistance 660 ohms maxTypical Inductance 210 mH maxOutput Polarity White lead positiveOperating Temperature -55 to +220deg CMounting Thread -0405 34 - 20 UNEF-2ACable Length 15 ft (457 m)Net Weight 16 oz max
Ordering Part Thread Length (A)70085-1010-404 1500 (3810)
70085-1010-406 2750 (6985)70085-1010-417 4000 (10160)70085-1010-420 6000 (15240)
SpecificationsOutput Voltage (Standard) 60V (P-P)Output Voltage (Guarantee Point) 134V (P-P)DC Resistance 210 ohms maxTypical Inductance 75 mH maxOutput Polarity White lead positiveOperating Temperature -20 to +220degCCable Length 15 ft (457m)Net Weight 16 oz max
Performance Curves
Based on 20 DP Gear
Based on 8 DP Gear
THREAD SIZE
FM ATEX Sensors
THREAD SIZE(6985)
58-18 UNF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
2750 (6985) 4000 (10160) 6000 (15240)
58-18 UNF-2A70085-1010-544 1875 (4763)
70085-1010-541 1875 (4763) 34-20 UNEF-2A70085-1010-542 34-20 UNEF-2A70085-1010-540 34-20 UNEF-2A70085-1010-543 34-20 UNEF-2A
34-20 UNEF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
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Thread Size (B)
Thread Size (B)
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FM ATEX Sensors
Passive Speed Sensors LISTED PRODUCT
Performance Curves
Based on 8 DP Gear
IEC EX Sensors
Rating ATEX and IEC Ex Equip Group II Category 2G Gas Group IIC Zone 1Sensor must be used with MTL 7764ac intrinsic barrierUser must install sensor in such a manner as to limit the output voltage to lessthan 12V Pk-Pk and a total energy of less than 26 microjoules
Available in a range of inch and metric thread lengths and sizes and cable lengths of 3 or 10 meters Consult factory for additional details
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Ordering Part Thread Length (A) Thread Size (B) Cable Length (C) Conduit Thread
70085-3030-111 1500 (3810) 58-18 UNF-2A 3 m 12 NPT70085-3030-112 2750 (6885) 58-18 UNF-2A 3 m 12 NPT70085-3030-113 4000 (1016) 58-18 UNF-2A 3 m 12 NPT70085-3030-114 6000 (1524) 58-18 UNF-2A 3 m 12 NPT70085-3030-211 1500 (3810) 58-18 UNF-2A 12 NPT70085-3030-212 2750 (6885) 58-18 UNF-2A 12 NPT70085-3030-213 4000 (1016) 58-18 UNF-2A 12 NPT70085-3030-214 6000 (1524) 58-18 UNF-2A 12 NPT70085-3030-222 2750 (6885) 12 NPT70085-3030-235 1575 (4000) M16 x 15 6g 10 m G 1270085-3030-237 3937 (1000) M16 x 15 6g 10 m G 12
THREAD SIZE
20
10 m10 m10 m10 m10 m34-20 UNEF-2A
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Net Weight 14 oz maxOperating Temperature -65 to 95degC
The defined SIL capability is based on the end users safety system architecture and defined diagnostics as outlined in IEC 61508 and IEC 61511 for sensors Single channel devise is insufficient to determine zero speed as part ofthe safety function Consult the factory for additional details (Pages 18-20)
KEY FEATURESCapable of up to a SIL 3 Rating PFH 610 E-09 1h
PFD AVG (T1=20 Years) 535 E-04 DC 90 SFF 91
ApplicationUsed for Speed Take Off
The Side Look Sensor (SLS) has been developed byAI-Tek Instruments for Allison automatic transmis-sions for trucks ranging from light duty vans to over-the-road tractors It is available for Allison AT MTand HT transmissions The new SLS improves onearlier designs developed for Allison to replace amechanical speed system
The SLS is a variable reluctance device that pro-vides electronic transmission speed inputs toengine control systems andor electronic dash-boards It mounts directly on the transmission andemploys a unique magnet configuration thatinduces a magnetic field on the side of the sensorin the path of the rotating transmission gear Thissystem with its fewer mounting parts improvesreliability reduces weight and conserves spaceover the earlier designs
AI-Tek Instruments LLCSide Look Sensor
The new SLS uses a molded glass filled nylon bodyto protect the sensor in harsh truck-operatingenvironments It replaces the old fly-lead designwith an integral standard Packard connectorwhich eliminates the added extra connector cost ofthe old design It is available in single and dualoutput versions
The SLS is manufactured in the United StatesAI-Tek Instruments Distributors stock the SLS foroff-the-shelf maintenance repair and overhaul(MRO) requirements
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188
CONNECTOR MATES WITHPACKARD 12162188
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Outline and Mounting Dimensions
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Specifications
PN 70082-1000-021 AT MT
PN 70082-1000-022 AT MT
PN 70082-1000-023 HT
PN 70082-1000-024 HT
Applications
22
Hall Effect Sensors
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for engine timing applications and has developed a line of durable products for
industrial use
With multiple standard variations we offer the widest range of standard catalog
sensors to meet your various design needs The design is flexible to easily meet all
of your application requirements
The Hall Effect sensor can sense each change in target movement regardless of speed
from near zero to 15 kHz frequency range generating a steady pulse train of frequency
proportional to target speed Typically each time a gear tooth (or any ferrous discontinuity)
passes in front of the sensor the output changes state This type of sensor is known as a P
type because it uses N-P-N transistor logic (as opposed to N type which uses P-N-P
transistor logic)
Key features to note are
bull Reverse voltage protection to prevent damage if miswired
bull Extended temperature range
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
AI-Tek has (3) Series of Hall Effect Sensors RH Series DH Series and BH Series
Below is a quick reference chart of the features of each of the series
It is the customers responsibility to determine whether the product is proper for customers use and application
PERFORMANCE RH SERIES DH SERIES BH SERIES1 Output Channel 1 Output Channel 2 Output Channels
+ Direction
Zero speed to 15kHz operation X X X
Standard gear tooth sensing X X X
Fine 32 DP Capability X X
Single tooth valley target X X
No installation alignment X
Extended airgap
(0100rdquo+ for 12DP and coarser targets) X X
General noise immunity X X X
EMI Hardened X X
High tolerance to target run-out X X
Self-calibrating X X
Direction Sensing X
Lowest cost X
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Distance Amplifier)For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
34-20 DH1612-113 TTL Cable 15 3375
34-20 DH1622-113 ST Cable 15 3375
34-20 RH1612-013 TTL Cable 15 3375
34-20 RH1622-013 ST Cable 15 3375
34-20 DH1612-114 TTL Cable 275 4625
34-20 DH1622-114 ST Cable 275 462534-20 RH1612-014 TTL Cable 275 4625
34-20 RH1622-014 ST Cable 275 462534-20 DH1612-105 TTL Connector 15 3375
34-20 DH1622-105 ST Connector 15 3375
34-20 RH1612-005 TTL Connector 15 3375
34-20 RH1622-005 ST Connector 15 3375
34-20 DH1612-106 TTL Connector 275 4625
34-20 DH1622-106 ST Connector 275 4625
34-20 RH1612-006 TTL Connector 275 4625
34-20 RH1622-006 ST Connector 275 4625
34-20 DH1612-107 TTL Connector 4 6512
34-20 DH1622-107 ST Connector 4 6512
34-20 RH1612-007 TTL Connector 4 6512
34-20 RH1622-007 ST Connector 4 6512
34-20 DH1612-109 TTL Wires 15 3375
34-20 DH1622-109 ST Wires 15 3375
34-20 RH1612-009 TTL Wires 15 3375
34-20 RH1622-009 ST Wires 15 3375
34-20 DH1612-110 TTL Wires 275 4625
34-20 DH1622-110 ST Wires 275 4625
34-20 RH1612-010 TTL Wires 275 4625
34-20 RH1622-010 ST Wires 275 4625
34-20 RH1612-025 TTL Cable 1375 475 X
34-20 RH1612-026 TTL Cable 15 3375 X
34-20 RH1622-026 ST Cable 15 3375 X
34-20 RH1612-027 TTL Cable 275 4625 X
34-20 RH1622-027 ST Cable 275 4625 X
Active Sensor Selection Guide
RH amp DH Series
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Active Sensor Selection Guide
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
58-18 DH1512-113 TTL Cable 15 3375
58-18 DH1522-113 ST Cable 15 3375
58-18 RH1512-013 TTL Cable 15 3375
58-18 RH1522-013 ST Cable 15 3375
58-18 DH1512-114 TTL Cable 275 4625
58-18 DH1522-114 ST Cable 275 4625
58-18 RH1512-014 TTL Cable 275 4625
58-18 RH1522-014 ST Cable 275 4625
58-18 DH1512-105 TTL Connector 15 3375
58-18 DH1522-105 ST Connector 15 3375
58-18 RH1512-005 TTL Connector 15 3375
58-18 RH1522-005 ST Connector 15 3375
58-18 DH1512-106 TTL Connector 275 4625
58-18 DH1522-106 ST Connector 275 4625
58-18 RH1512-006 TTL Connector 275 4625
58-18 RH1522-006 ST Connector 275 4625
58-18 DH1512-107 TTL Connector 4 6512
58-18 DH1522-107 ST Connector 4 6512
58-18 RH1512-007 TTL Connector 4 6512
58-18 RH1522-007 ST Connector 4 6512
58-18 DH1512-109 TTL Cable 15 3375
58-18 DH1522-109 ST Cable 15 3375
58-18 RH1512-009 TTL Cable 15 3375
58-18 RH1522-009 ST Cable 15 3375
58-18 DH1512-110 TTL Cable 275 4625
58-18 DH1522-110 ST Cable 275 4625
58-18 RH1512-010 TTL Cable 275 4625
58-18 RH1522-010 ST Cable 275 4625
58-18 RH1512-026 TTL Cable 15 3375 X
58-18 RH1522-026 ST Cable 15 3375 X
58-18 RH1512-027 TTL Cable 275 4625 X
58-18 RH1522-027 ST Cable 275 4625 X
58-18 DH1512-210 ST Cable 275 275
58-18 DH1522-210 ST Cable 275 275
38-32 RH1320-001 ST Wires 163 163
38-32 RH1320-003 ST Cable 163 163
38-24 RH1320-009 ST Wires 163 163
38-24 RH1320-010 ST Cable 163 163
38-24 RH1320-012 ST Cable 3 3
38 Dia RH1320-005 ST Wires
38 Dia RH1320-006 ST Cable
NOTE RTD Temperature Sensing Feature
_ _
_ _
RH amp DH Series
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Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +46 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage
-30 Vdc
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap005 to 020 with a 24 diametral pitch gear005 to 030 with a 20 diametral pitch gear005 to 050 with a 12 diametral pitch gear005 to 075 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B 5NaCl for 48 hrs No visible corrosion
Humidity92 RH 40degC for 90 hrsNo visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 20 Irradiated cross-linked polyolefin
125degC
Rotational alignment of sensing face is notrequired for optimum output signal
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Note Either output will work with any AI-Tek Tachometer
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RH Series
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INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
RH1512-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-014 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-014 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
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RH Series
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
RH1512-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1522-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1512-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
RH1522-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1512-007 625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1522-007 625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
RH1612-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1622-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1612-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
RH1622-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1612-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1622-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) Supply Tracking
Net Weight 7 oz max
Fully Threaded with Leads
Part Num Thread A Dimension Lead Length Output
RH1512-009 625-18 UNF-2A 1500 (38100) 12(304) TTL Compatible
RH1522-009 625-18 UNF-2A 1500 (38100) 12(304) Supply Tracking
RH1512-010 625-18 UNF-2A 2750 (69850) 12(304) TTL Compatible
RH1522-010 625-18 UNF-2A 2750 (69850) 12(304) Supply Tracking
RH1612-009 750-20 UNEF-2A 1500 (38100) 12(304) TTL Compatible
RH1622-009 750-20 UNEF-2A 1500 (38100) 12(304) Supply Tracking
RH1612-010 750-20 UNEF-2A 2750 (69850) 12(304) TTL Compatible
RH1622-010 750-20 UNEF-2A 2750 (69850) 12(304) Supply Tracking
Net Weight 3 oz max Dimensions in inches and (mm)
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
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Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
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DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
38
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
40
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
44
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
46
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
50
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
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Printed in USA1300-O 712
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Passive Speed Sensors
Dimensions in inches and (mm)
Performance Curves
Ordering Part Thread Length (A) (B)70085-1010-024 687 (1745) 313 (795)70085-1010-472 687 (1745) 500 (1270)70085-1010-227 1687 (4285) 313 (795)
SpecificationsOutput Voltage (Standard) 47 V (P-P)Output Voltage (Guarantee Point) 04 V (P-P)DC Resistance 125 ohms maxTypical Inductance 5-12 mH refOutput Polarity White lead positiveOperating Temperature -73 to 232degCLead Length 8 in (203 cm)Cable Length -472 60 in (15 m)Net Weight 2 oz max
B as ed on 20 DP G ear
and cable for extra protection Extra locknut provided
General Purpose - High Temperature
14 - 40 FAMILY
Egress is a 2-conductor AWG 26 shielded Teflon cable with 3 long shrink tubing over housing
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-037 500 (1270)70085-1010-299 1250 (3175)
Performance Curves
General Purpose ndash High Temperature
SpecificationsOutput Voltage (Standard) 13 V (P-P)Output Voltage (Guarantee Point) 6 V (P-P)DC Resistance 190 ohms maxTypical Inductance 10 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 18 in (457 cm)Net Weight 1 oz max
10 - 32 FAMILY
High Sensitivity
Ordering Part Thread Length (A)70085-1010-182 500 (1270)70085-1010-289 1250 (3175)
Performance Curves
SpecificationsOutput Voltage (Standard) 6 V (P-P)Output Voltage (Guarantee Point) 3 V (P-P)
Typical Inductance 2 mH refOutput Polarity White lead positiveOperating Temperature -73 to +150degCLead Length 18 in (457 cm)Net Weight 1 oz max
Based on 20 DP Gear
Based on 20 DP Gear
DC Resistance 50 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)Based on 8 DP Gear
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-413 1500 (3810)70085-1010-005 1875 (4763)70085-1010-327 2750 (6985)70085-1010-328 4000 (10160)70085-1010-414 6000 (15240)
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positiveOperating Temperature -65 to +95degCLead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1Groups E F G Temp Code T3C
Ordering Part Thread Length (A)70085-1010-081 1500 (3810)70085-1010-411 1875 (4763)70085-1010-329 2750 (6985)70085-1010-330 4000 (10160)70085-1010-412 6000 (15240)
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Lead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Based on 8 DP Gear
Groups E F G Temp Code T3C
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ULATEXCSA Sensors The products on pgs 18-20 are capable of up to a SIL 3 rating
ULATEXCSA Sensors
ATEX Group II Category 3G Zone 2
ATEX Group II Category 3G Zone 2
18
Operating Temperature -65 to 95degC
Passive Speed Sensors
Dimensions in inches and (mm)
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-403 1500 (3810)
70085-1010-405 2750
70085-1010-415 4000 (10160)70085-1010-416 6000 (15240)
Performance Curves
SpecificationsOutput Voltage (Standard) 90 V (P-P)Output Voltage (Guarantee Point) 94 V (P-P)DC Resistance 660 ohms maxTypical Inductance 210 mH maxOutput Polarity White lead positiveOperating Temperature -55 to +220deg CMounting Thread -0405 34 - 20 UNEF-2ACable Length 15 ft (457 m)Net Weight 16 oz max
Ordering Part Thread Length (A)70085-1010-404 1500 (3810)
70085-1010-406 2750 (6985)70085-1010-417 4000 (10160)70085-1010-420 6000 (15240)
SpecificationsOutput Voltage (Standard) 60V (P-P)Output Voltage (Guarantee Point) 134V (P-P)DC Resistance 210 ohms maxTypical Inductance 75 mH maxOutput Polarity White lead positiveOperating Temperature -20 to +220degCCable Length 15 ft (457m)Net Weight 16 oz max
Performance Curves
Based on 20 DP Gear
Based on 8 DP Gear
THREAD SIZE
FM ATEX Sensors
THREAD SIZE(6985)
58-18 UNF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
2750 (6985) 4000 (10160) 6000 (15240)
58-18 UNF-2A70085-1010-544 1875 (4763)
70085-1010-541 1875 (4763) 34-20 UNEF-2A70085-1010-542 34-20 UNEF-2A70085-1010-540 34-20 UNEF-2A70085-1010-543 34-20 UNEF-2A
34-20 UNEF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
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Thread Size (B)
Thread Size (B)
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FM ATEX Sensors
Passive Speed Sensors LISTED PRODUCT
Performance Curves
Based on 8 DP Gear
IEC EX Sensors
Rating ATEX and IEC Ex Equip Group II Category 2G Gas Group IIC Zone 1Sensor must be used with MTL 7764ac intrinsic barrierUser must install sensor in such a manner as to limit the output voltage to lessthan 12V Pk-Pk and a total energy of less than 26 microjoules
Available in a range of inch and metric thread lengths and sizes and cable lengths of 3 or 10 meters Consult factory for additional details
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Ordering Part Thread Length (A) Thread Size (B) Cable Length (C) Conduit Thread
70085-3030-111 1500 (3810) 58-18 UNF-2A 3 m 12 NPT70085-3030-112 2750 (6885) 58-18 UNF-2A 3 m 12 NPT70085-3030-113 4000 (1016) 58-18 UNF-2A 3 m 12 NPT70085-3030-114 6000 (1524) 58-18 UNF-2A 3 m 12 NPT70085-3030-211 1500 (3810) 58-18 UNF-2A 12 NPT70085-3030-212 2750 (6885) 58-18 UNF-2A 12 NPT70085-3030-213 4000 (1016) 58-18 UNF-2A 12 NPT70085-3030-214 6000 (1524) 58-18 UNF-2A 12 NPT70085-3030-222 2750 (6885) 12 NPT70085-3030-235 1575 (4000) M16 x 15 6g 10 m G 1270085-3030-237 3937 (1000) M16 x 15 6g 10 m G 12
THREAD SIZE
20
10 m10 m10 m10 m10 m34-20 UNEF-2A
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Net Weight 14 oz maxOperating Temperature -65 to 95degC
The defined SIL capability is based on the end users safety system architecture and defined diagnostics as outlined in IEC 61508 and IEC 61511 for sensors Single channel devise is insufficient to determine zero speed as part ofthe safety function Consult the factory for additional details (Pages 18-20)
KEY FEATURESCapable of up to a SIL 3 Rating PFH 610 E-09 1h
PFD AVG (T1=20 Years) 535 E-04 DC 90 SFF 91
ApplicationUsed for Speed Take Off
The Side Look Sensor (SLS) has been developed byAI-Tek Instruments for Allison automatic transmis-sions for trucks ranging from light duty vans to over-the-road tractors It is available for Allison AT MTand HT transmissions The new SLS improves onearlier designs developed for Allison to replace amechanical speed system
The SLS is a variable reluctance device that pro-vides electronic transmission speed inputs toengine control systems andor electronic dash-boards It mounts directly on the transmission andemploys a unique magnet configuration thatinduces a magnetic field on the side of the sensorin the path of the rotating transmission gear Thissystem with its fewer mounting parts improvesreliability reduces weight and conserves spaceover the earlier designs
AI-Tek Instruments LLCSide Look Sensor
The new SLS uses a molded glass filled nylon bodyto protect the sensor in harsh truck-operatingenvironments It replaces the old fly-lead designwith an integral standard Packard connectorwhich eliminates the added extra connector cost ofthe old design It is available in single and dualoutput versions
The SLS is manufactured in the United StatesAI-Tek Instruments Distributors stock the SLS foroff-the-shelf maintenance repair and overhaul(MRO) requirements
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188
CONNECTOR MATES WITHPACKARD 12162188
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Outline and Mounting Dimensions
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Specifications
PN 70082-1000-021 AT MT
PN 70082-1000-022 AT MT
PN 70082-1000-023 HT
PN 70082-1000-024 HT
Applications
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Hall Effect Sensors
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for engine timing applications and has developed a line of durable products for
industrial use
With multiple standard variations we offer the widest range of standard catalog
sensors to meet your various design needs The design is flexible to easily meet all
of your application requirements
The Hall Effect sensor can sense each change in target movement regardless of speed
from near zero to 15 kHz frequency range generating a steady pulse train of frequency
proportional to target speed Typically each time a gear tooth (or any ferrous discontinuity)
passes in front of the sensor the output changes state This type of sensor is known as a P
type because it uses N-P-N transistor logic (as opposed to N type which uses P-N-P
transistor logic)
Key features to note are
bull Reverse voltage protection to prevent damage if miswired
bull Extended temperature range
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
AI-Tek has (3) Series of Hall Effect Sensors RH Series DH Series and BH Series
Below is a quick reference chart of the features of each of the series
It is the customers responsibility to determine whether the product is proper for customers use and application
PERFORMANCE RH SERIES DH SERIES BH SERIES1 Output Channel 1 Output Channel 2 Output Channels
+ Direction
Zero speed to 15kHz operation X X X
Standard gear tooth sensing X X X
Fine 32 DP Capability X X
Single tooth valley target X X
No installation alignment X
Extended airgap
(0100rdquo+ for 12DP and coarser targets) X X
General noise immunity X X X
EMI Hardened X X
High tolerance to target run-out X X
Self-calibrating X X
Direction Sensing X
Lowest cost X
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Distance Amplifier)For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
34-20 DH1612-113 TTL Cable 15 3375
34-20 DH1622-113 ST Cable 15 3375
34-20 RH1612-013 TTL Cable 15 3375
34-20 RH1622-013 ST Cable 15 3375
34-20 DH1612-114 TTL Cable 275 4625
34-20 DH1622-114 ST Cable 275 462534-20 RH1612-014 TTL Cable 275 4625
34-20 RH1622-014 ST Cable 275 462534-20 DH1612-105 TTL Connector 15 3375
34-20 DH1622-105 ST Connector 15 3375
34-20 RH1612-005 TTL Connector 15 3375
34-20 RH1622-005 ST Connector 15 3375
34-20 DH1612-106 TTL Connector 275 4625
34-20 DH1622-106 ST Connector 275 4625
34-20 RH1612-006 TTL Connector 275 4625
34-20 RH1622-006 ST Connector 275 4625
34-20 DH1612-107 TTL Connector 4 6512
34-20 DH1622-107 ST Connector 4 6512
34-20 RH1612-007 TTL Connector 4 6512
34-20 RH1622-007 ST Connector 4 6512
34-20 DH1612-109 TTL Wires 15 3375
34-20 DH1622-109 ST Wires 15 3375
34-20 RH1612-009 TTL Wires 15 3375
34-20 RH1622-009 ST Wires 15 3375
34-20 DH1612-110 TTL Wires 275 4625
34-20 DH1622-110 ST Wires 275 4625
34-20 RH1612-010 TTL Wires 275 4625
34-20 RH1622-010 ST Wires 275 4625
34-20 RH1612-025 TTL Cable 1375 475 X
34-20 RH1612-026 TTL Cable 15 3375 X
34-20 RH1622-026 ST Cable 15 3375 X
34-20 RH1612-027 TTL Cable 275 4625 X
34-20 RH1622-027 ST Cable 275 4625 X
Active Sensor Selection Guide
RH amp DH Series
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Active Sensor Selection Guide
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
58-18 DH1512-113 TTL Cable 15 3375
58-18 DH1522-113 ST Cable 15 3375
58-18 RH1512-013 TTL Cable 15 3375
58-18 RH1522-013 ST Cable 15 3375
58-18 DH1512-114 TTL Cable 275 4625
58-18 DH1522-114 ST Cable 275 4625
58-18 RH1512-014 TTL Cable 275 4625
58-18 RH1522-014 ST Cable 275 4625
58-18 DH1512-105 TTL Connector 15 3375
58-18 DH1522-105 ST Connector 15 3375
58-18 RH1512-005 TTL Connector 15 3375
58-18 RH1522-005 ST Connector 15 3375
58-18 DH1512-106 TTL Connector 275 4625
58-18 DH1522-106 ST Connector 275 4625
58-18 RH1512-006 TTL Connector 275 4625
58-18 RH1522-006 ST Connector 275 4625
58-18 DH1512-107 TTL Connector 4 6512
58-18 DH1522-107 ST Connector 4 6512
58-18 RH1512-007 TTL Connector 4 6512
58-18 RH1522-007 ST Connector 4 6512
58-18 DH1512-109 TTL Cable 15 3375
58-18 DH1522-109 ST Cable 15 3375
58-18 RH1512-009 TTL Cable 15 3375
58-18 RH1522-009 ST Cable 15 3375
58-18 DH1512-110 TTL Cable 275 4625
58-18 DH1522-110 ST Cable 275 4625
58-18 RH1512-010 TTL Cable 275 4625
58-18 RH1522-010 ST Cable 275 4625
58-18 RH1512-026 TTL Cable 15 3375 X
58-18 RH1522-026 ST Cable 15 3375 X
58-18 RH1512-027 TTL Cable 275 4625 X
58-18 RH1522-027 ST Cable 275 4625 X
58-18 DH1512-210 ST Cable 275 275
58-18 DH1522-210 ST Cable 275 275
38-32 RH1320-001 ST Wires 163 163
38-32 RH1320-003 ST Cable 163 163
38-24 RH1320-009 ST Wires 163 163
38-24 RH1320-010 ST Cable 163 163
38-24 RH1320-012 ST Cable 3 3
38 Dia RH1320-005 ST Wires
38 Dia RH1320-006 ST Cable
NOTE RTD Temperature Sensing Feature
_ _
_ _
RH amp DH Series
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Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +46 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage
-30 Vdc
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap005 to 020 with a 24 diametral pitch gear005 to 030 with a 20 diametral pitch gear005 to 050 with a 12 diametral pitch gear005 to 075 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B 5NaCl for 48 hrs No visible corrosion
Humidity92 RH 40degC for 90 hrsNo visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 20 Irradiated cross-linked polyolefin
125degC
Rotational alignment of sensing face is notrequired for optimum output signal
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Note Either output will work with any AI-Tek Tachometer
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INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
RH1512-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-014 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-014 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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RH Series
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
RH1512-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1522-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1512-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
RH1522-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1512-007 625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1522-007 625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
RH1612-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1622-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1612-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
RH1622-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1612-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1622-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) Supply Tracking
Net Weight 7 oz max
Fully Threaded with Leads
Part Num Thread A Dimension Lead Length Output
RH1512-009 625-18 UNF-2A 1500 (38100) 12(304) TTL Compatible
RH1522-009 625-18 UNF-2A 1500 (38100) 12(304) Supply Tracking
RH1512-010 625-18 UNF-2A 2750 (69850) 12(304) TTL Compatible
RH1522-010 625-18 UNF-2A 2750 (69850) 12(304) Supply Tracking
RH1612-009 750-20 UNEF-2A 1500 (38100) 12(304) TTL Compatible
RH1622-009 750-20 UNEF-2A 1500 (38100) 12(304) Supply Tracking
RH1612-010 750-20 UNEF-2A 2750 (69850) 12(304) TTL Compatible
RH1622-010 750-20 UNEF-2A 2750 (69850) 12(304) Supply Tracking
Net Weight 3 oz max Dimensions in inches and (mm)
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ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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ARH Series
29
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
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RH Series
30
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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Dim A
Dimension A
1630
RH Series
1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
31
DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
38
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
40
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
44
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
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45
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
46
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Steel Split Gear
Solid Steel Gear
47
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
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Printed in USA1300-O 712
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Passive Speed Sensors
Dimensions in inches and (mm)
Ordering Part Thread Length (A)70085-1010-037 500 (1270)70085-1010-299 1250 (3175)
Performance Curves
General Purpose ndash High Temperature
SpecificationsOutput Voltage (Standard) 13 V (P-P)Output Voltage (Guarantee Point) 6 V (P-P)DC Resistance 190 ohms maxTypical Inductance 10 mH refOutput Polarity White lead positiveOperating Temperature -55 to +107degCLead Length 18 in (457 cm)Net Weight 1 oz max
10 - 32 FAMILY
High Sensitivity
Ordering Part Thread Length (A)70085-1010-182 500 (1270)70085-1010-289 1250 (3175)
Performance Curves
SpecificationsOutput Voltage (Standard) 6 V (P-P)Output Voltage (Guarantee Point) 3 V (P-P)
Typical Inductance 2 mH refOutput Polarity White lead positiveOperating Temperature -73 to +150degCLead Length 18 in (457 cm)Net Weight 1 oz max
Based on 20 DP Gear
Based on 20 DP Gear
DC Resistance 50 ohms max
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Passive Speed Sensors
Dimensions in inches and (mm)Based on 8 DP Gear
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-413 1500 (3810)70085-1010-005 1875 (4763)70085-1010-327 2750 (6985)70085-1010-328 4000 (10160)70085-1010-414 6000 (15240)
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positiveOperating Temperature -65 to +95degCLead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1Groups E F G Temp Code T3C
Ordering Part Thread Length (A)70085-1010-081 1500 (3810)70085-1010-411 1875 (4763)70085-1010-329 2750 (6985)70085-1010-330 4000 (10160)70085-1010-412 6000 (15240)
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Lead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Based on 8 DP Gear
Groups E F G Temp Code T3C
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ULATEXCSA Sensors The products on pgs 18-20 are capable of up to a SIL 3 rating
ULATEXCSA Sensors
ATEX Group II Category 3G Zone 2
ATEX Group II Category 3G Zone 2
18
Operating Temperature -65 to 95degC
Passive Speed Sensors
Dimensions in inches and (mm)
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-403 1500 (3810)
70085-1010-405 2750
70085-1010-415 4000 (10160)70085-1010-416 6000 (15240)
Performance Curves
SpecificationsOutput Voltage (Standard) 90 V (P-P)Output Voltage (Guarantee Point) 94 V (P-P)DC Resistance 660 ohms maxTypical Inductance 210 mH maxOutput Polarity White lead positiveOperating Temperature -55 to +220deg CMounting Thread -0405 34 - 20 UNEF-2ACable Length 15 ft (457 m)Net Weight 16 oz max
Ordering Part Thread Length (A)70085-1010-404 1500 (3810)
70085-1010-406 2750 (6985)70085-1010-417 4000 (10160)70085-1010-420 6000 (15240)
SpecificationsOutput Voltage (Standard) 60V (P-P)Output Voltage (Guarantee Point) 134V (P-P)DC Resistance 210 ohms maxTypical Inductance 75 mH maxOutput Polarity White lead positiveOperating Temperature -20 to +220degCCable Length 15 ft (457m)Net Weight 16 oz max
Performance Curves
Based on 20 DP Gear
Based on 8 DP Gear
THREAD SIZE
FM ATEX Sensors
THREAD SIZE(6985)
58-18 UNF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
2750 (6985) 4000 (10160) 6000 (15240)
58-18 UNF-2A70085-1010-544 1875 (4763)
70085-1010-541 1875 (4763) 34-20 UNEF-2A70085-1010-542 34-20 UNEF-2A70085-1010-540 34-20 UNEF-2A70085-1010-543 34-20 UNEF-2A
34-20 UNEF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
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Thread Size (B)
Thread Size (B)
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FM ATEX Sensors
Passive Speed Sensors LISTED PRODUCT
Performance Curves
Based on 8 DP Gear
IEC EX Sensors
Rating ATEX and IEC Ex Equip Group II Category 2G Gas Group IIC Zone 1Sensor must be used with MTL 7764ac intrinsic barrierUser must install sensor in such a manner as to limit the output voltage to lessthan 12V Pk-Pk and a total energy of less than 26 microjoules
Available in a range of inch and metric thread lengths and sizes and cable lengths of 3 or 10 meters Consult factory for additional details
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Ordering Part Thread Length (A) Thread Size (B) Cable Length (C) Conduit Thread
70085-3030-111 1500 (3810) 58-18 UNF-2A 3 m 12 NPT70085-3030-112 2750 (6885) 58-18 UNF-2A 3 m 12 NPT70085-3030-113 4000 (1016) 58-18 UNF-2A 3 m 12 NPT70085-3030-114 6000 (1524) 58-18 UNF-2A 3 m 12 NPT70085-3030-211 1500 (3810) 58-18 UNF-2A 12 NPT70085-3030-212 2750 (6885) 58-18 UNF-2A 12 NPT70085-3030-213 4000 (1016) 58-18 UNF-2A 12 NPT70085-3030-214 6000 (1524) 58-18 UNF-2A 12 NPT70085-3030-222 2750 (6885) 12 NPT70085-3030-235 1575 (4000) M16 x 15 6g 10 m G 1270085-3030-237 3937 (1000) M16 x 15 6g 10 m G 12
THREAD SIZE
20
10 m10 m10 m10 m10 m34-20 UNEF-2A
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Net Weight 14 oz maxOperating Temperature -65 to 95degC
The defined SIL capability is based on the end users safety system architecture and defined diagnostics as outlined in IEC 61508 and IEC 61511 for sensors Single channel devise is insufficient to determine zero speed as part ofthe safety function Consult the factory for additional details (Pages 18-20)
KEY FEATURESCapable of up to a SIL 3 Rating PFH 610 E-09 1h
PFD AVG (T1=20 Years) 535 E-04 DC 90 SFF 91
ApplicationUsed for Speed Take Off
The Side Look Sensor (SLS) has been developed byAI-Tek Instruments for Allison automatic transmis-sions for trucks ranging from light duty vans to over-the-road tractors It is available for Allison AT MTand HT transmissions The new SLS improves onearlier designs developed for Allison to replace amechanical speed system
The SLS is a variable reluctance device that pro-vides electronic transmission speed inputs toengine control systems andor electronic dash-boards It mounts directly on the transmission andemploys a unique magnet configuration thatinduces a magnetic field on the side of the sensorin the path of the rotating transmission gear Thissystem with its fewer mounting parts improvesreliability reduces weight and conserves spaceover the earlier designs
AI-Tek Instruments LLCSide Look Sensor
The new SLS uses a molded glass filled nylon bodyto protect the sensor in harsh truck-operatingenvironments It replaces the old fly-lead designwith an integral standard Packard connectorwhich eliminates the added extra connector cost ofthe old design It is available in single and dualoutput versions
The SLS is manufactured in the United StatesAI-Tek Instruments Distributors stock the SLS foroff-the-shelf maintenance repair and overhaul(MRO) requirements
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188
CONNECTOR MATES WITHPACKARD 12162188
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Outline and Mounting Dimensions
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Specifications
PN 70082-1000-021 AT MT
PN 70082-1000-022 AT MT
PN 70082-1000-023 HT
PN 70082-1000-024 HT
Applications
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Hall Effect Sensors
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for engine timing applications and has developed a line of durable products for
industrial use
With multiple standard variations we offer the widest range of standard catalog
sensors to meet your various design needs The design is flexible to easily meet all
of your application requirements
The Hall Effect sensor can sense each change in target movement regardless of speed
from near zero to 15 kHz frequency range generating a steady pulse train of frequency
proportional to target speed Typically each time a gear tooth (or any ferrous discontinuity)
passes in front of the sensor the output changes state This type of sensor is known as a P
type because it uses N-P-N transistor logic (as opposed to N type which uses P-N-P
transistor logic)
Key features to note are
bull Reverse voltage protection to prevent damage if miswired
bull Extended temperature range
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
AI-Tek has (3) Series of Hall Effect Sensors RH Series DH Series and BH Series
Below is a quick reference chart of the features of each of the series
It is the customers responsibility to determine whether the product is proper for customers use and application
PERFORMANCE RH SERIES DH SERIES BH SERIES1 Output Channel 1 Output Channel 2 Output Channels
+ Direction
Zero speed to 15kHz operation X X X
Standard gear tooth sensing X X X
Fine 32 DP Capability X X
Single tooth valley target X X
No installation alignment X
Extended airgap
(0100rdquo+ for 12DP and coarser targets) X X
General noise immunity X X X
EMI Hardened X X
High tolerance to target run-out X X
Self-calibrating X X
Direction Sensing X
Lowest cost X
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Distance Amplifier)For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
34-20 DH1612-113 TTL Cable 15 3375
34-20 DH1622-113 ST Cable 15 3375
34-20 RH1612-013 TTL Cable 15 3375
34-20 RH1622-013 ST Cable 15 3375
34-20 DH1612-114 TTL Cable 275 4625
34-20 DH1622-114 ST Cable 275 462534-20 RH1612-014 TTL Cable 275 4625
34-20 RH1622-014 ST Cable 275 462534-20 DH1612-105 TTL Connector 15 3375
34-20 DH1622-105 ST Connector 15 3375
34-20 RH1612-005 TTL Connector 15 3375
34-20 RH1622-005 ST Connector 15 3375
34-20 DH1612-106 TTL Connector 275 4625
34-20 DH1622-106 ST Connector 275 4625
34-20 RH1612-006 TTL Connector 275 4625
34-20 RH1622-006 ST Connector 275 4625
34-20 DH1612-107 TTL Connector 4 6512
34-20 DH1622-107 ST Connector 4 6512
34-20 RH1612-007 TTL Connector 4 6512
34-20 RH1622-007 ST Connector 4 6512
34-20 DH1612-109 TTL Wires 15 3375
34-20 DH1622-109 ST Wires 15 3375
34-20 RH1612-009 TTL Wires 15 3375
34-20 RH1622-009 ST Wires 15 3375
34-20 DH1612-110 TTL Wires 275 4625
34-20 DH1622-110 ST Wires 275 4625
34-20 RH1612-010 TTL Wires 275 4625
34-20 RH1622-010 ST Wires 275 4625
34-20 RH1612-025 TTL Cable 1375 475 X
34-20 RH1612-026 TTL Cable 15 3375 X
34-20 RH1622-026 ST Cable 15 3375 X
34-20 RH1612-027 TTL Cable 275 4625 X
34-20 RH1622-027 ST Cable 275 4625 X
Active Sensor Selection Guide
RH amp DH Series
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Active Sensor Selection Guide
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
58-18 DH1512-113 TTL Cable 15 3375
58-18 DH1522-113 ST Cable 15 3375
58-18 RH1512-013 TTL Cable 15 3375
58-18 RH1522-013 ST Cable 15 3375
58-18 DH1512-114 TTL Cable 275 4625
58-18 DH1522-114 ST Cable 275 4625
58-18 RH1512-014 TTL Cable 275 4625
58-18 RH1522-014 ST Cable 275 4625
58-18 DH1512-105 TTL Connector 15 3375
58-18 DH1522-105 ST Connector 15 3375
58-18 RH1512-005 TTL Connector 15 3375
58-18 RH1522-005 ST Connector 15 3375
58-18 DH1512-106 TTL Connector 275 4625
58-18 DH1522-106 ST Connector 275 4625
58-18 RH1512-006 TTL Connector 275 4625
58-18 RH1522-006 ST Connector 275 4625
58-18 DH1512-107 TTL Connector 4 6512
58-18 DH1522-107 ST Connector 4 6512
58-18 RH1512-007 TTL Connector 4 6512
58-18 RH1522-007 ST Connector 4 6512
58-18 DH1512-109 TTL Cable 15 3375
58-18 DH1522-109 ST Cable 15 3375
58-18 RH1512-009 TTL Cable 15 3375
58-18 RH1522-009 ST Cable 15 3375
58-18 DH1512-110 TTL Cable 275 4625
58-18 DH1522-110 ST Cable 275 4625
58-18 RH1512-010 TTL Cable 275 4625
58-18 RH1522-010 ST Cable 275 4625
58-18 RH1512-026 TTL Cable 15 3375 X
58-18 RH1522-026 ST Cable 15 3375 X
58-18 RH1512-027 TTL Cable 275 4625 X
58-18 RH1522-027 ST Cable 275 4625 X
58-18 DH1512-210 ST Cable 275 275
58-18 DH1522-210 ST Cable 275 275
38-32 RH1320-001 ST Wires 163 163
38-32 RH1320-003 ST Cable 163 163
38-24 RH1320-009 ST Wires 163 163
38-24 RH1320-010 ST Cable 163 163
38-24 RH1320-012 ST Cable 3 3
38 Dia RH1320-005 ST Wires
38 Dia RH1320-006 ST Cable
NOTE RTD Temperature Sensing Feature
_ _
_ _
RH amp DH Series
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Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +46 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage
-30 Vdc
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap005 to 020 with a 24 diametral pitch gear005 to 030 with a 20 diametral pitch gear005 to 050 with a 12 diametral pitch gear005 to 075 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B 5NaCl for 48 hrs No visible corrosion
Humidity92 RH 40degC for 90 hrsNo visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 20 Irradiated cross-linked polyolefin
125degC
Rotational alignment of sensing face is notrequired for optimum output signal
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Note Either output will work with any AI-Tek Tachometer
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INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
RH1512-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-014 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-014 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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750-20 UNEF-2A
750-20 UNEF-2A
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
27
RH Series
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
RH1512-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1522-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1512-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
RH1522-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1512-007 625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1522-007 625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
RH1612-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1622-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1612-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
RH1622-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1612-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1622-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) Supply Tracking
Net Weight 7 oz max
Fully Threaded with Leads
Part Num Thread A Dimension Lead Length Output
RH1512-009 625-18 UNF-2A 1500 (38100) 12(304) TTL Compatible
RH1522-009 625-18 UNF-2A 1500 (38100) 12(304) Supply Tracking
RH1512-010 625-18 UNF-2A 2750 (69850) 12(304) TTL Compatible
RH1522-010 625-18 UNF-2A 2750 (69850) 12(304) Supply Tracking
RH1612-009 750-20 UNEF-2A 1500 (38100) 12(304) TTL Compatible
RH1622-009 750-20 UNEF-2A 1500 (38100) 12(304) Supply Tracking
RH1612-010 750-20 UNEF-2A 2750 (69850) 12(304) TTL Compatible
RH1622-010 750-20 UNEF-2A 2750 (69850) 12(304) Supply Tracking
Net Weight 3 oz max Dimensions in inches and (mm)
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RH Series
28
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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ARH Series
29
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
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RH Series
30
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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Dim A
Dimension A
1630
RH Series
1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
31
DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
38
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
40
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 18: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/18.jpg)
Passive Speed Sensors
Dimensions in inches and (mm)Based on 8 DP Gear
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-413 1500 (3810)70085-1010-005 1875 (4763)70085-1010-327 2750 (6985)70085-1010-328 4000 (10160)70085-1010-414 6000 (15240)
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positiveOperating Temperature -65 to +95degCLead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1Groups E F G Temp Code T3C
Ordering Part Thread Length (A)70085-1010-081 1500 (3810)70085-1010-411 1875 (4763)70085-1010-329 2750 (6985)70085-1010-330 4000 (10160)70085-1010-412 6000 (15240)
Performance Curves
Rating UL and CSA listed for hazardous locationsClass I Div 1 Groups A B C amp D Class II Div 1
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Lead Length 10 ft (305 m)Housing Ground GreenYellow TracerNet Weight 14 oz max
Based on 8 DP Gear
Groups E F G Temp Code T3C
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ULATEXCSA Sensors The products on pgs 18-20 are capable of up to a SIL 3 rating
ULATEXCSA Sensors
ATEX Group II Category 3G Zone 2
ATEX Group II Category 3G Zone 2
18
Operating Temperature -65 to 95degC
Passive Speed Sensors
Dimensions in inches and (mm)
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-403 1500 (3810)
70085-1010-405 2750
70085-1010-415 4000 (10160)70085-1010-416 6000 (15240)
Performance Curves
SpecificationsOutput Voltage (Standard) 90 V (P-P)Output Voltage (Guarantee Point) 94 V (P-P)DC Resistance 660 ohms maxTypical Inductance 210 mH maxOutput Polarity White lead positiveOperating Temperature -55 to +220deg CMounting Thread -0405 34 - 20 UNEF-2ACable Length 15 ft (457 m)Net Weight 16 oz max
Ordering Part Thread Length (A)70085-1010-404 1500 (3810)
70085-1010-406 2750 (6985)70085-1010-417 4000 (10160)70085-1010-420 6000 (15240)
SpecificationsOutput Voltage (Standard) 60V (P-P)Output Voltage (Guarantee Point) 134V (P-P)DC Resistance 210 ohms maxTypical Inductance 75 mH maxOutput Polarity White lead positiveOperating Temperature -20 to +220degCCable Length 15 ft (457m)Net Weight 16 oz max
Performance Curves
Based on 20 DP Gear
Based on 8 DP Gear
THREAD SIZE
FM ATEX Sensors
THREAD SIZE(6985)
58-18 UNF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
2750 (6985) 4000 (10160) 6000 (15240)
58-18 UNF-2A70085-1010-544 1875 (4763)
70085-1010-541 1875 (4763) 34-20 UNEF-2A70085-1010-542 34-20 UNEF-2A70085-1010-540 34-20 UNEF-2A70085-1010-543 34-20 UNEF-2A
34-20 UNEF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
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Thread Size (B)
Thread Size (B)
19
FM ATEX Sensors
Passive Speed Sensors LISTED PRODUCT
Performance Curves
Based on 8 DP Gear
IEC EX Sensors
Rating ATEX and IEC Ex Equip Group II Category 2G Gas Group IIC Zone 1Sensor must be used with MTL 7764ac intrinsic barrierUser must install sensor in such a manner as to limit the output voltage to lessthan 12V Pk-Pk and a total energy of less than 26 microjoules
Available in a range of inch and metric thread lengths and sizes and cable lengths of 3 or 10 meters Consult factory for additional details
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Ordering Part Thread Length (A) Thread Size (B) Cable Length (C) Conduit Thread
70085-3030-111 1500 (3810) 58-18 UNF-2A 3 m 12 NPT70085-3030-112 2750 (6885) 58-18 UNF-2A 3 m 12 NPT70085-3030-113 4000 (1016) 58-18 UNF-2A 3 m 12 NPT70085-3030-114 6000 (1524) 58-18 UNF-2A 3 m 12 NPT70085-3030-211 1500 (3810) 58-18 UNF-2A 12 NPT70085-3030-212 2750 (6885) 58-18 UNF-2A 12 NPT70085-3030-213 4000 (1016) 58-18 UNF-2A 12 NPT70085-3030-214 6000 (1524) 58-18 UNF-2A 12 NPT70085-3030-222 2750 (6885) 12 NPT70085-3030-235 1575 (4000) M16 x 15 6g 10 m G 1270085-3030-237 3937 (1000) M16 x 15 6g 10 m G 12
THREAD SIZE
20
10 m10 m10 m10 m10 m34-20 UNEF-2A
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Net Weight 14 oz maxOperating Temperature -65 to 95degC
The defined SIL capability is based on the end users safety system architecture and defined diagnostics as outlined in IEC 61508 and IEC 61511 for sensors Single channel devise is insufficient to determine zero speed as part ofthe safety function Consult the factory for additional details (Pages 18-20)
KEY FEATURESCapable of up to a SIL 3 Rating PFH 610 E-09 1h
PFD AVG (T1=20 Years) 535 E-04 DC 90 SFF 91
ApplicationUsed for Speed Take Off
The Side Look Sensor (SLS) has been developed byAI-Tek Instruments for Allison automatic transmis-sions for trucks ranging from light duty vans to over-the-road tractors It is available for Allison AT MTand HT transmissions The new SLS improves onearlier designs developed for Allison to replace amechanical speed system
The SLS is a variable reluctance device that pro-vides electronic transmission speed inputs toengine control systems andor electronic dash-boards It mounts directly on the transmission andemploys a unique magnet configuration thatinduces a magnetic field on the side of the sensorin the path of the rotating transmission gear Thissystem with its fewer mounting parts improvesreliability reduces weight and conserves spaceover the earlier designs
AI-Tek Instruments LLCSide Look Sensor
The new SLS uses a molded glass filled nylon bodyto protect the sensor in harsh truck-operatingenvironments It replaces the old fly-lead designwith an integral standard Packard connectorwhich eliminates the added extra connector cost ofthe old design It is available in single and dualoutput versions
The SLS is manufactured in the United StatesAI-Tek Instruments Distributors stock the SLS foroff-the-shelf maintenance repair and overhaul(MRO) requirements
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188
CONNECTOR MATES WITHPACKARD 12162188
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Outline and Mounting Dimensions
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Specifications
PN 70082-1000-021 AT MT
PN 70082-1000-022 AT MT
PN 70082-1000-023 HT
PN 70082-1000-024 HT
Applications
22
Hall Effect Sensors
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for engine timing applications and has developed a line of durable products for
industrial use
With multiple standard variations we offer the widest range of standard catalog
sensors to meet your various design needs The design is flexible to easily meet all
of your application requirements
The Hall Effect sensor can sense each change in target movement regardless of speed
from near zero to 15 kHz frequency range generating a steady pulse train of frequency
proportional to target speed Typically each time a gear tooth (or any ferrous discontinuity)
passes in front of the sensor the output changes state This type of sensor is known as a P
type because it uses N-P-N transistor logic (as opposed to N type which uses P-N-P
transistor logic)
Key features to note are
bull Reverse voltage protection to prevent damage if miswired
bull Extended temperature range
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
AI-Tek has (3) Series of Hall Effect Sensors RH Series DH Series and BH Series
Below is a quick reference chart of the features of each of the series
It is the customers responsibility to determine whether the product is proper for customers use and application
PERFORMANCE RH SERIES DH SERIES BH SERIES1 Output Channel 1 Output Channel 2 Output Channels
+ Direction
Zero speed to 15kHz operation X X X
Standard gear tooth sensing X X X
Fine 32 DP Capability X X
Single tooth valley target X X
No installation alignment X
Extended airgap
(0100rdquo+ for 12DP and coarser targets) X X
General noise immunity X X X
EMI Hardened X X
High tolerance to target run-out X X
Self-calibrating X X
Direction Sensing X
Lowest cost X
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Distance Amplifier)For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
34-20 DH1612-113 TTL Cable 15 3375
34-20 DH1622-113 ST Cable 15 3375
34-20 RH1612-013 TTL Cable 15 3375
34-20 RH1622-013 ST Cable 15 3375
34-20 DH1612-114 TTL Cable 275 4625
34-20 DH1622-114 ST Cable 275 462534-20 RH1612-014 TTL Cable 275 4625
34-20 RH1622-014 ST Cable 275 462534-20 DH1612-105 TTL Connector 15 3375
34-20 DH1622-105 ST Connector 15 3375
34-20 RH1612-005 TTL Connector 15 3375
34-20 RH1622-005 ST Connector 15 3375
34-20 DH1612-106 TTL Connector 275 4625
34-20 DH1622-106 ST Connector 275 4625
34-20 RH1612-006 TTL Connector 275 4625
34-20 RH1622-006 ST Connector 275 4625
34-20 DH1612-107 TTL Connector 4 6512
34-20 DH1622-107 ST Connector 4 6512
34-20 RH1612-007 TTL Connector 4 6512
34-20 RH1622-007 ST Connector 4 6512
34-20 DH1612-109 TTL Wires 15 3375
34-20 DH1622-109 ST Wires 15 3375
34-20 RH1612-009 TTL Wires 15 3375
34-20 RH1622-009 ST Wires 15 3375
34-20 DH1612-110 TTL Wires 275 4625
34-20 DH1622-110 ST Wires 275 4625
34-20 RH1612-010 TTL Wires 275 4625
34-20 RH1622-010 ST Wires 275 4625
34-20 RH1612-025 TTL Cable 1375 475 X
34-20 RH1612-026 TTL Cable 15 3375 X
34-20 RH1622-026 ST Cable 15 3375 X
34-20 RH1612-027 TTL Cable 275 4625 X
34-20 RH1622-027 ST Cable 275 4625 X
Active Sensor Selection Guide
RH amp DH Series
24
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Active Sensor Selection Guide
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
58-18 DH1512-113 TTL Cable 15 3375
58-18 DH1522-113 ST Cable 15 3375
58-18 RH1512-013 TTL Cable 15 3375
58-18 RH1522-013 ST Cable 15 3375
58-18 DH1512-114 TTL Cable 275 4625
58-18 DH1522-114 ST Cable 275 4625
58-18 RH1512-014 TTL Cable 275 4625
58-18 RH1522-014 ST Cable 275 4625
58-18 DH1512-105 TTL Connector 15 3375
58-18 DH1522-105 ST Connector 15 3375
58-18 RH1512-005 TTL Connector 15 3375
58-18 RH1522-005 ST Connector 15 3375
58-18 DH1512-106 TTL Connector 275 4625
58-18 DH1522-106 ST Connector 275 4625
58-18 RH1512-006 TTL Connector 275 4625
58-18 RH1522-006 ST Connector 275 4625
58-18 DH1512-107 TTL Connector 4 6512
58-18 DH1522-107 ST Connector 4 6512
58-18 RH1512-007 TTL Connector 4 6512
58-18 RH1522-007 ST Connector 4 6512
58-18 DH1512-109 TTL Cable 15 3375
58-18 DH1522-109 ST Cable 15 3375
58-18 RH1512-009 TTL Cable 15 3375
58-18 RH1522-009 ST Cable 15 3375
58-18 DH1512-110 TTL Cable 275 4625
58-18 DH1522-110 ST Cable 275 4625
58-18 RH1512-010 TTL Cable 275 4625
58-18 RH1522-010 ST Cable 275 4625
58-18 RH1512-026 TTL Cable 15 3375 X
58-18 RH1522-026 ST Cable 15 3375 X
58-18 RH1512-027 TTL Cable 275 4625 X
58-18 RH1522-027 ST Cable 275 4625 X
58-18 DH1512-210 ST Cable 275 275
58-18 DH1522-210 ST Cable 275 275
38-32 RH1320-001 ST Wires 163 163
38-32 RH1320-003 ST Cable 163 163
38-24 RH1320-009 ST Wires 163 163
38-24 RH1320-010 ST Cable 163 163
38-24 RH1320-012 ST Cable 3 3
38 Dia RH1320-005 ST Wires
38 Dia RH1320-006 ST Cable
NOTE RTD Temperature Sensing Feature
_ _
_ _
RH amp DH Series
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Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +46 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage
-30 Vdc
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap005 to 020 with a 24 diametral pitch gear005 to 030 with a 20 diametral pitch gear005 to 050 with a 12 diametral pitch gear005 to 075 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B 5NaCl for 48 hrs No visible corrosion
Humidity92 RH 40degC for 90 hrsNo visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 20 Irradiated cross-linked polyolefin
125degC
Rotational alignment of sensing face is notrequired for optimum output signal
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Note Either output will work with any AI-Tek Tachometer
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A
RH Series
26
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
RH1512-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-014 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-014 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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Tek
Instr
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C
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TU
SA
750-20 UNEF-2A
750-20 UNEF-2A
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
27
RH Series
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
RH1512-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1522-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1512-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
RH1522-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1512-007 625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1522-007 625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
RH1612-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1622-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1612-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
RH1622-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1612-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1622-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) Supply Tracking
Net Weight 7 oz max
Fully Threaded with Leads
Part Num Thread A Dimension Lead Length Output
RH1512-009 625-18 UNF-2A 1500 (38100) 12(304) TTL Compatible
RH1522-009 625-18 UNF-2A 1500 (38100) 12(304) Supply Tracking
RH1512-010 625-18 UNF-2A 2750 (69850) 12(304) TTL Compatible
RH1522-010 625-18 UNF-2A 2750 (69850) 12(304) Supply Tracking
RH1612-009 750-20 UNEF-2A 1500 (38100) 12(304) TTL Compatible
RH1622-009 750-20 UNEF-2A 1500 (38100) 12(304) Supply Tracking
RH1612-010 750-20 UNEF-2A 2750 (69850) 12(304) TTL Compatible
RH1622-010 750-20 UNEF-2A 2750 (69850) 12(304) Supply Tracking
Net Weight 3 oz max Dimensions in inches and (mm)
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RH Series
28
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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Instr
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ARH Series
29
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
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C
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CT
US
A
RH Series
30
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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CT
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Dim A
Dimension A
1630
RH Series
1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
31
DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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Instr
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
38
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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A
(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
40
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 19: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/19.jpg)
Passive Speed Sensors
Dimensions in inches and (mm)
LISTED PRODUCT
Ordering Part Thread Length (A)70085-1010-403 1500 (3810)
70085-1010-405 2750
70085-1010-415 4000 (10160)70085-1010-416 6000 (15240)
Performance Curves
SpecificationsOutput Voltage (Standard) 90 V (P-P)Output Voltage (Guarantee Point) 94 V (P-P)DC Resistance 660 ohms maxTypical Inductance 210 mH maxOutput Polarity White lead positiveOperating Temperature -55 to +220deg CMounting Thread -0405 34 - 20 UNEF-2ACable Length 15 ft (457 m)Net Weight 16 oz max
Ordering Part Thread Length (A)70085-1010-404 1500 (3810)
70085-1010-406 2750 (6985)70085-1010-417 4000 (10160)70085-1010-420 6000 (15240)
SpecificationsOutput Voltage (Standard) 60V (P-P)Output Voltage (Guarantee Point) 134V (P-P)DC Resistance 210 ohms maxTypical Inductance 75 mH maxOutput Polarity White lead positiveOperating Temperature -20 to +220degCCable Length 15 ft (457m)Net Weight 16 oz max
Performance Curves
Based on 20 DP Gear
Based on 8 DP Gear
THREAD SIZE
FM ATEX Sensors
THREAD SIZE(6985)
58-18 UNF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
2750 (6985) 4000 (10160) 6000 (15240)
58-18 UNF-2A70085-1010-544 1875 (4763)
70085-1010-541 1875 (4763) 34-20 UNEF-2A70085-1010-542 34-20 UNEF-2A70085-1010-540 34-20 UNEF-2A70085-1010-543 34-20 UNEF-2A
34-20 UNEF-2A
58-18 UNF-2A58-18 UNF-2A58-18 UNF-2A
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
Rating FM listed Intrinsically Safe Class I Division 1Groups A B C D ATEX Group II Category 3G Zone 2
ASU T
C erihsehC stne
murtsnI keT-IA
Thread Size (B)
Thread Size (B)
19
FM ATEX Sensors
Passive Speed Sensors LISTED PRODUCT
Performance Curves
Based on 8 DP Gear
IEC EX Sensors
Rating ATEX and IEC Ex Equip Group II Category 2G Gas Group IIC Zone 1Sensor must be used with MTL 7764ac intrinsic barrierUser must install sensor in such a manner as to limit the output voltage to lessthan 12V Pk-Pk and a total energy of less than 26 microjoules
Available in a range of inch and metric thread lengths and sizes and cable lengths of 3 or 10 meters Consult factory for additional details
ASU T
C erihsehC stne
murtsnI keT-IA
Ordering Part Thread Length (A) Thread Size (B) Cable Length (C) Conduit Thread
70085-3030-111 1500 (3810) 58-18 UNF-2A 3 m 12 NPT70085-3030-112 2750 (6885) 58-18 UNF-2A 3 m 12 NPT70085-3030-113 4000 (1016) 58-18 UNF-2A 3 m 12 NPT70085-3030-114 6000 (1524) 58-18 UNF-2A 3 m 12 NPT70085-3030-211 1500 (3810) 58-18 UNF-2A 12 NPT70085-3030-212 2750 (6885) 58-18 UNF-2A 12 NPT70085-3030-213 4000 (1016) 58-18 UNF-2A 12 NPT70085-3030-214 6000 (1524) 58-18 UNF-2A 12 NPT70085-3030-222 2750 (6885) 12 NPT70085-3030-235 1575 (4000) M16 x 15 6g 10 m G 1270085-3030-237 3937 (1000) M16 x 15 6g 10 m G 12
THREAD SIZE
20
10 m10 m10 m10 m10 m34-20 UNEF-2A
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Net Weight 14 oz maxOperating Temperature -65 to 95degC
The defined SIL capability is based on the end users safety system architecture and defined diagnostics as outlined in IEC 61508 and IEC 61511 for sensors Single channel devise is insufficient to determine zero speed as part ofthe safety function Consult the factory for additional details (Pages 18-20)
KEY FEATURESCapable of up to a SIL 3 Rating PFH 610 E-09 1h
PFD AVG (T1=20 Years) 535 E-04 DC 90 SFF 91
ApplicationUsed for Speed Take Off
The Side Look Sensor (SLS) has been developed byAI-Tek Instruments for Allison automatic transmis-sions for trucks ranging from light duty vans to over-the-road tractors It is available for Allison AT MTand HT transmissions The new SLS improves onearlier designs developed for Allison to replace amechanical speed system
The SLS is a variable reluctance device that pro-vides electronic transmission speed inputs toengine control systems andor electronic dash-boards It mounts directly on the transmission andemploys a unique magnet configuration thatinduces a magnetic field on the side of the sensorin the path of the rotating transmission gear Thissystem with its fewer mounting parts improvesreliability reduces weight and conserves spaceover the earlier designs
AI-Tek Instruments LLCSide Look Sensor
The new SLS uses a molded glass filled nylon bodyto protect the sensor in harsh truck-operatingenvironments It replaces the old fly-lead designwith an integral standard Packard connectorwhich eliminates the added extra connector cost ofthe old design It is available in single and dualoutput versions
The SLS is manufactured in the United StatesAI-Tek Instruments Distributors stock the SLS foroff-the-shelf maintenance repair and overhaul(MRO) requirements
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188
CONNECTOR MATES WITHPACKARD 12162188
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Outline and Mounting Dimensions
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Specifications
PN 70082-1000-021 AT MT
PN 70082-1000-022 AT MT
PN 70082-1000-023 HT
PN 70082-1000-024 HT
Applications
22
Hall Effect Sensors
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for engine timing applications and has developed a line of durable products for
industrial use
With multiple standard variations we offer the widest range of standard catalog
sensors to meet your various design needs The design is flexible to easily meet all
of your application requirements
The Hall Effect sensor can sense each change in target movement regardless of speed
from near zero to 15 kHz frequency range generating a steady pulse train of frequency
proportional to target speed Typically each time a gear tooth (or any ferrous discontinuity)
passes in front of the sensor the output changes state This type of sensor is known as a P
type because it uses N-P-N transistor logic (as opposed to N type which uses P-N-P
transistor logic)
Key features to note are
bull Reverse voltage protection to prevent damage if miswired
bull Extended temperature range
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
AI-Tek has (3) Series of Hall Effect Sensors RH Series DH Series and BH Series
Below is a quick reference chart of the features of each of the series
It is the customers responsibility to determine whether the product is proper for customers use and application
PERFORMANCE RH SERIES DH SERIES BH SERIES1 Output Channel 1 Output Channel 2 Output Channels
+ Direction
Zero speed to 15kHz operation X X X
Standard gear tooth sensing X X X
Fine 32 DP Capability X X
Single tooth valley target X X
No installation alignment X
Extended airgap
(0100rdquo+ for 12DP and coarser targets) X X
General noise immunity X X X
EMI Hardened X X
High tolerance to target run-out X X
Self-calibrating X X
Direction Sensing X
Lowest cost X
23
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Distance Amplifier)For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
34-20 DH1612-113 TTL Cable 15 3375
34-20 DH1622-113 ST Cable 15 3375
34-20 RH1612-013 TTL Cable 15 3375
34-20 RH1622-013 ST Cable 15 3375
34-20 DH1612-114 TTL Cable 275 4625
34-20 DH1622-114 ST Cable 275 462534-20 RH1612-014 TTL Cable 275 4625
34-20 RH1622-014 ST Cable 275 462534-20 DH1612-105 TTL Connector 15 3375
34-20 DH1622-105 ST Connector 15 3375
34-20 RH1612-005 TTL Connector 15 3375
34-20 RH1622-005 ST Connector 15 3375
34-20 DH1612-106 TTL Connector 275 4625
34-20 DH1622-106 ST Connector 275 4625
34-20 RH1612-006 TTL Connector 275 4625
34-20 RH1622-006 ST Connector 275 4625
34-20 DH1612-107 TTL Connector 4 6512
34-20 DH1622-107 ST Connector 4 6512
34-20 RH1612-007 TTL Connector 4 6512
34-20 RH1622-007 ST Connector 4 6512
34-20 DH1612-109 TTL Wires 15 3375
34-20 DH1622-109 ST Wires 15 3375
34-20 RH1612-009 TTL Wires 15 3375
34-20 RH1622-009 ST Wires 15 3375
34-20 DH1612-110 TTL Wires 275 4625
34-20 DH1622-110 ST Wires 275 4625
34-20 RH1612-010 TTL Wires 275 4625
34-20 RH1622-010 ST Wires 275 4625
34-20 RH1612-025 TTL Cable 1375 475 X
34-20 RH1612-026 TTL Cable 15 3375 X
34-20 RH1622-026 ST Cable 15 3375 X
34-20 RH1612-027 TTL Cable 275 4625 X
34-20 RH1622-027 ST Cable 275 4625 X
Active Sensor Selection Guide
RH amp DH Series
24
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2835352727343427273434
28
283535
28
283535
28
283535
28
283535
282929292929
Active Sensor Selection Guide
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
58-18 DH1512-113 TTL Cable 15 3375
58-18 DH1522-113 ST Cable 15 3375
58-18 RH1512-013 TTL Cable 15 3375
58-18 RH1522-013 ST Cable 15 3375
58-18 DH1512-114 TTL Cable 275 4625
58-18 DH1522-114 ST Cable 275 4625
58-18 RH1512-014 TTL Cable 275 4625
58-18 RH1522-014 ST Cable 275 4625
58-18 DH1512-105 TTL Connector 15 3375
58-18 DH1522-105 ST Connector 15 3375
58-18 RH1512-005 TTL Connector 15 3375
58-18 RH1522-005 ST Connector 15 3375
58-18 DH1512-106 TTL Connector 275 4625
58-18 DH1522-106 ST Connector 275 4625
58-18 RH1512-006 TTL Connector 275 4625
58-18 RH1522-006 ST Connector 275 4625
58-18 DH1512-107 TTL Connector 4 6512
58-18 DH1522-107 ST Connector 4 6512
58-18 RH1512-007 TTL Connector 4 6512
58-18 RH1522-007 ST Connector 4 6512
58-18 DH1512-109 TTL Cable 15 3375
58-18 DH1522-109 ST Cable 15 3375
58-18 RH1512-009 TTL Cable 15 3375
58-18 RH1522-009 ST Cable 15 3375
58-18 DH1512-110 TTL Cable 275 4625
58-18 DH1522-110 ST Cable 275 4625
58-18 RH1512-010 TTL Cable 275 4625
58-18 RH1522-010 ST Cable 275 4625
58-18 RH1512-026 TTL Cable 15 3375 X
58-18 RH1522-026 ST Cable 15 3375 X
58-18 RH1512-027 TTL Cable 275 4625 X
58-18 RH1522-027 ST Cable 275 4625 X
58-18 DH1512-210 ST Cable 275 275
58-18 DH1522-210 ST Cable 275 275
38-32 RH1320-001 ST Wires 163 163
38-32 RH1320-003 ST Cable 163 163
38-24 RH1320-009 ST Wires 163 163
38-24 RH1320-010 ST Cable 163 163
38-24 RH1320-012 ST Cable 3 3
38 Dia RH1320-005 ST Wires
38 Dia RH1320-006 ST Cable
NOTE RTD Temperature Sensing Feature
_ _
_ _
RH amp DH Series
25
AI-
Tek
Instr
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C
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TU
SA
27273434
27273434
283535
28
283535
28
283535
28
283535
28
283535
2829292929363631313131313131
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +46 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage
-30 Vdc
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap005 to 020 with a 24 diametral pitch gear005 to 030 with a 20 diametral pitch gear005 to 050 with a 12 diametral pitch gear005 to 075 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B 5NaCl for 48 hrs No visible corrosion
Humidity92 RH 40degC for 90 hrsNo visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 20 Irradiated cross-linked polyolefin
125degC
Rotational alignment of sensing face is notrequired for optimum output signal
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Note Either output will work with any AI-Tek Tachometer
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Instr
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CT
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A
RH Series
26
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
RH1512-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-014 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-014 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
AI-
Tek
Instr
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C
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TU
SA
750-20 UNEF-2A
750-20 UNEF-2A
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
27
RH Series
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
RH1512-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1522-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1512-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
RH1522-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1512-007 625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1522-007 625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
RH1612-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1622-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1612-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
RH1622-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1612-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1622-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) Supply Tracking
Net Weight 7 oz max
Fully Threaded with Leads
Part Num Thread A Dimension Lead Length Output
RH1512-009 625-18 UNF-2A 1500 (38100) 12(304) TTL Compatible
RH1522-009 625-18 UNF-2A 1500 (38100) 12(304) Supply Tracking
RH1512-010 625-18 UNF-2A 2750 (69850) 12(304) TTL Compatible
RH1522-010 625-18 UNF-2A 2750 (69850) 12(304) Supply Tracking
RH1612-009 750-20 UNEF-2A 1500 (38100) 12(304) TTL Compatible
RH1622-009 750-20 UNEF-2A 1500 (38100) 12(304) Supply Tracking
RH1612-010 750-20 UNEF-2A 2750 (69850) 12(304) TTL Compatible
RH1622-010 750-20 UNEF-2A 2750 (69850) 12(304) Supply Tracking
Net Weight 3 oz max Dimensions in inches and (mm)
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A
RH Series
28
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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Instr
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ARH Series
29
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
AI-
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C
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CT
US
A
RH Series
30
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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CT
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Dim A
Dimension A
1630
RH Series
1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
31
DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
AI-
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Instr
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C
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
AI-
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
AI-
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
38
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
AI-
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
AI-
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Ins
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A
(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 20: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/20.jpg)
Passive Speed Sensors LISTED PRODUCT
Performance Curves
Based on 8 DP Gear
IEC EX Sensors
Rating ATEX and IEC Ex Equip Group II Category 2G Gas Group IIC Zone 1Sensor must be used with MTL 7764ac intrinsic barrierUser must install sensor in such a manner as to limit the output voltage to lessthan 12V Pk-Pk and a total energy of less than 26 microjoules
Available in a range of inch and metric thread lengths and sizes and cable lengths of 3 or 10 meters Consult factory for additional details
ASU T
C erihsehC stne
murtsnI keT-IA
Ordering Part Thread Length (A) Thread Size (B) Cable Length (C) Conduit Thread
70085-3030-111 1500 (3810) 58-18 UNF-2A 3 m 12 NPT70085-3030-112 2750 (6885) 58-18 UNF-2A 3 m 12 NPT70085-3030-113 4000 (1016) 58-18 UNF-2A 3 m 12 NPT70085-3030-114 6000 (1524) 58-18 UNF-2A 3 m 12 NPT70085-3030-211 1500 (3810) 58-18 UNF-2A 12 NPT70085-3030-212 2750 (6885) 58-18 UNF-2A 12 NPT70085-3030-213 4000 (1016) 58-18 UNF-2A 12 NPT70085-3030-214 6000 (1524) 58-18 UNF-2A 12 NPT70085-3030-222 2750 (6885) 12 NPT70085-3030-235 1575 (4000) M16 x 15 6g 10 m G 1270085-3030-237 3937 (1000) M16 x 15 6g 10 m G 12
THREAD SIZE
20
10 m10 m10 m10 m10 m34-20 UNEF-2A
SpecificationsOutput Voltage (Standard) 54 V (P-P)Output Voltage (Guarantee Point)134 V (P-P)DC Resistance 240 ohms maxTypical Inductance 30 mH refOutput Polarity White lead positive
Net Weight 14 oz maxOperating Temperature -65 to 95degC
The defined SIL capability is based on the end users safety system architecture and defined diagnostics as outlined in IEC 61508 and IEC 61511 for sensors Single channel devise is insufficient to determine zero speed as part ofthe safety function Consult the factory for additional details (Pages 18-20)
KEY FEATURESCapable of up to a SIL 3 Rating PFH 610 E-09 1h
PFD AVG (T1=20 Years) 535 E-04 DC 90 SFF 91
ApplicationUsed for Speed Take Off
The Side Look Sensor (SLS) has been developed byAI-Tek Instruments for Allison automatic transmis-sions for trucks ranging from light duty vans to over-the-road tractors It is available for Allison AT MTand HT transmissions The new SLS improves onearlier designs developed for Allison to replace amechanical speed system
The SLS is a variable reluctance device that pro-vides electronic transmission speed inputs toengine control systems andor electronic dash-boards It mounts directly on the transmission andemploys a unique magnet configuration thatinduces a magnetic field on the side of the sensorin the path of the rotating transmission gear Thissystem with its fewer mounting parts improvesreliability reduces weight and conserves spaceover the earlier designs
AI-Tek Instruments LLCSide Look Sensor
The new SLS uses a molded glass filled nylon bodyto protect the sensor in harsh truck-operatingenvironments It replaces the old fly-lead designwith an integral standard Packard connectorwhich eliminates the added extra connector cost ofthe old design It is available in single and dualoutput versions
The SLS is manufactured in the United StatesAI-Tek Instruments Distributors stock the SLS foroff-the-shelf maintenance repair and overhaul(MRO) requirements
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188
CONNECTOR MATES WITHPACKARD 12162188
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Outline and Mounting Dimensions
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Specifications
PN 70082-1000-021 AT MT
PN 70082-1000-022 AT MT
PN 70082-1000-023 HT
PN 70082-1000-024 HT
Applications
22
Hall Effect Sensors
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for engine timing applications and has developed a line of durable products for
industrial use
With multiple standard variations we offer the widest range of standard catalog
sensors to meet your various design needs The design is flexible to easily meet all
of your application requirements
The Hall Effect sensor can sense each change in target movement regardless of speed
from near zero to 15 kHz frequency range generating a steady pulse train of frequency
proportional to target speed Typically each time a gear tooth (or any ferrous discontinuity)
passes in front of the sensor the output changes state This type of sensor is known as a P
type because it uses N-P-N transistor logic (as opposed to N type which uses P-N-P
transistor logic)
Key features to note are
bull Reverse voltage protection to prevent damage if miswired
bull Extended temperature range
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
AI-Tek has (3) Series of Hall Effect Sensors RH Series DH Series and BH Series
Below is a quick reference chart of the features of each of the series
It is the customers responsibility to determine whether the product is proper for customers use and application
PERFORMANCE RH SERIES DH SERIES BH SERIES1 Output Channel 1 Output Channel 2 Output Channels
+ Direction
Zero speed to 15kHz operation X X X
Standard gear tooth sensing X X X
Fine 32 DP Capability X X
Single tooth valley target X X
No installation alignment X
Extended airgap
(0100rdquo+ for 12DP and coarser targets) X X
General noise immunity X X X
EMI Hardened X X
High tolerance to target run-out X X
Self-calibrating X X
Direction Sensing X
Lowest cost X
23
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Distance Amplifier)For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
34-20 DH1612-113 TTL Cable 15 3375
34-20 DH1622-113 ST Cable 15 3375
34-20 RH1612-013 TTL Cable 15 3375
34-20 RH1622-013 ST Cable 15 3375
34-20 DH1612-114 TTL Cable 275 4625
34-20 DH1622-114 ST Cable 275 462534-20 RH1612-014 TTL Cable 275 4625
34-20 RH1622-014 ST Cable 275 462534-20 DH1612-105 TTL Connector 15 3375
34-20 DH1622-105 ST Connector 15 3375
34-20 RH1612-005 TTL Connector 15 3375
34-20 RH1622-005 ST Connector 15 3375
34-20 DH1612-106 TTL Connector 275 4625
34-20 DH1622-106 ST Connector 275 4625
34-20 RH1612-006 TTL Connector 275 4625
34-20 RH1622-006 ST Connector 275 4625
34-20 DH1612-107 TTL Connector 4 6512
34-20 DH1622-107 ST Connector 4 6512
34-20 RH1612-007 TTL Connector 4 6512
34-20 RH1622-007 ST Connector 4 6512
34-20 DH1612-109 TTL Wires 15 3375
34-20 DH1622-109 ST Wires 15 3375
34-20 RH1612-009 TTL Wires 15 3375
34-20 RH1622-009 ST Wires 15 3375
34-20 DH1612-110 TTL Wires 275 4625
34-20 DH1622-110 ST Wires 275 4625
34-20 RH1612-010 TTL Wires 275 4625
34-20 RH1622-010 ST Wires 275 4625
34-20 RH1612-025 TTL Cable 1375 475 X
34-20 RH1612-026 TTL Cable 15 3375 X
34-20 RH1622-026 ST Cable 15 3375 X
34-20 RH1612-027 TTL Cable 275 4625 X
34-20 RH1622-027 ST Cable 275 4625 X
Active Sensor Selection Guide
RH amp DH Series
24
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28
283535
28
283535
28
283535
28
283535
282929292929
Active Sensor Selection Guide
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
58-18 DH1512-113 TTL Cable 15 3375
58-18 DH1522-113 ST Cable 15 3375
58-18 RH1512-013 TTL Cable 15 3375
58-18 RH1522-013 ST Cable 15 3375
58-18 DH1512-114 TTL Cable 275 4625
58-18 DH1522-114 ST Cable 275 4625
58-18 RH1512-014 TTL Cable 275 4625
58-18 RH1522-014 ST Cable 275 4625
58-18 DH1512-105 TTL Connector 15 3375
58-18 DH1522-105 ST Connector 15 3375
58-18 RH1512-005 TTL Connector 15 3375
58-18 RH1522-005 ST Connector 15 3375
58-18 DH1512-106 TTL Connector 275 4625
58-18 DH1522-106 ST Connector 275 4625
58-18 RH1512-006 TTL Connector 275 4625
58-18 RH1522-006 ST Connector 275 4625
58-18 DH1512-107 TTL Connector 4 6512
58-18 DH1522-107 ST Connector 4 6512
58-18 RH1512-007 TTL Connector 4 6512
58-18 RH1522-007 ST Connector 4 6512
58-18 DH1512-109 TTL Cable 15 3375
58-18 DH1522-109 ST Cable 15 3375
58-18 RH1512-009 TTL Cable 15 3375
58-18 RH1522-009 ST Cable 15 3375
58-18 DH1512-110 TTL Cable 275 4625
58-18 DH1522-110 ST Cable 275 4625
58-18 RH1512-010 TTL Cable 275 4625
58-18 RH1522-010 ST Cable 275 4625
58-18 RH1512-026 TTL Cable 15 3375 X
58-18 RH1522-026 ST Cable 15 3375 X
58-18 RH1512-027 TTL Cable 275 4625 X
58-18 RH1522-027 ST Cable 275 4625 X
58-18 DH1512-210 ST Cable 275 275
58-18 DH1522-210 ST Cable 275 275
38-32 RH1320-001 ST Wires 163 163
38-32 RH1320-003 ST Cable 163 163
38-24 RH1320-009 ST Wires 163 163
38-24 RH1320-010 ST Cable 163 163
38-24 RH1320-012 ST Cable 3 3
38 Dia RH1320-005 ST Wires
38 Dia RH1320-006 ST Cable
NOTE RTD Temperature Sensing Feature
_ _
_ _
RH amp DH Series
25
AI-
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Instr
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SA
27273434
27273434
283535
28
283535
28
283535
28
283535
28
283535
2829292929363631313131313131
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +46 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage
-30 Vdc
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap005 to 020 with a 24 diametral pitch gear005 to 030 with a 20 diametral pitch gear005 to 050 with a 12 diametral pitch gear005 to 075 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B 5NaCl for 48 hrs No visible corrosion
Humidity92 RH 40degC for 90 hrsNo visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 20 Irradiated cross-linked polyolefin
125degC
Rotational alignment of sensing face is notrequired for optimum output signal
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Note Either output will work with any AI-Tek Tachometer
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A
RH Series
26
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
RH1512-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-014 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-014 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
AI-
Tek
Instr
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C
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TU
SA
750-20 UNEF-2A
750-20 UNEF-2A
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
27
RH Series
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
RH1512-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1522-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1512-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
RH1522-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1512-007 625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1522-007 625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
RH1612-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1622-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1612-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
RH1622-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1612-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1622-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) Supply Tracking
Net Weight 7 oz max
Fully Threaded with Leads
Part Num Thread A Dimension Lead Length Output
RH1512-009 625-18 UNF-2A 1500 (38100) 12(304) TTL Compatible
RH1522-009 625-18 UNF-2A 1500 (38100) 12(304) Supply Tracking
RH1512-010 625-18 UNF-2A 2750 (69850) 12(304) TTL Compatible
RH1522-010 625-18 UNF-2A 2750 (69850) 12(304) Supply Tracking
RH1612-009 750-20 UNEF-2A 1500 (38100) 12(304) TTL Compatible
RH1622-009 750-20 UNEF-2A 1500 (38100) 12(304) Supply Tracking
RH1612-010 750-20 UNEF-2A 2750 (69850) 12(304) TTL Compatible
RH1622-010 750-20 UNEF-2A 2750 (69850) 12(304) Supply Tracking
Net Weight 3 oz max Dimensions in inches and (mm)
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RH Series
28
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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ARH Series
29
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
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CT
US
A
RH Series
30
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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Dim A
Dimension A
1630
RH Series
1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
31
DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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Instr
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C
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
AI-
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
38
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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A
(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 21: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/21.jpg)
ApplicationUsed for Speed Take Off
The Side Look Sensor (SLS) has been developed byAI-Tek Instruments for Allison automatic transmis-sions for trucks ranging from light duty vans to over-the-road tractors It is available for Allison AT MTand HT transmissions The new SLS improves onearlier designs developed for Allison to replace amechanical speed system
The SLS is a variable reluctance device that pro-vides electronic transmission speed inputs toengine control systems andor electronic dash-boards It mounts directly on the transmission andemploys a unique magnet configuration thatinduces a magnetic field on the side of the sensorin the path of the rotating transmission gear Thissystem with its fewer mounting parts improvesreliability reduces weight and conserves spaceover the earlier designs
AI-Tek Instruments LLCSide Look Sensor
The new SLS uses a molded glass filled nylon bodyto protect the sensor in harsh truck-operatingenvironments It replaces the old fly-lead designwith an integral standard Packard connectorwhich eliminates the added extra connector cost ofthe old design It is available in single and dualoutput versions
The SLS is manufactured in the United StatesAI-Tek Instruments Distributors stock the SLS foroff-the-shelf maintenance repair and overhaul(MRO) requirements
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188(USE PACKARD 12034413SEAL PLUG FOR UNUSEDWIRE HOLES)
CONNECTOR MATES WITHPACKARD 12162188
CONNECTOR MATES WITHPACKARD 12162188
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Outline and Mounting Dimensions
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Specifications
PN 70082-1000-021 AT MT
PN 70082-1000-022 AT MT
PN 70082-1000-023 HT
PN 70082-1000-024 HT
Applications
22
Hall Effect Sensors
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for engine timing applications and has developed a line of durable products for
industrial use
With multiple standard variations we offer the widest range of standard catalog
sensors to meet your various design needs The design is flexible to easily meet all
of your application requirements
The Hall Effect sensor can sense each change in target movement regardless of speed
from near zero to 15 kHz frequency range generating a steady pulse train of frequency
proportional to target speed Typically each time a gear tooth (or any ferrous discontinuity)
passes in front of the sensor the output changes state This type of sensor is known as a P
type because it uses N-P-N transistor logic (as opposed to N type which uses P-N-P
transistor logic)
Key features to note are
bull Reverse voltage protection to prevent damage if miswired
bull Extended temperature range
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
AI-Tek has (3) Series of Hall Effect Sensors RH Series DH Series and BH Series
Below is a quick reference chart of the features of each of the series
It is the customers responsibility to determine whether the product is proper for customers use and application
PERFORMANCE RH SERIES DH SERIES BH SERIES1 Output Channel 1 Output Channel 2 Output Channels
+ Direction
Zero speed to 15kHz operation X X X
Standard gear tooth sensing X X X
Fine 32 DP Capability X X
Single tooth valley target X X
No installation alignment X
Extended airgap
(0100rdquo+ for 12DP and coarser targets) X X
General noise immunity X X X
EMI Hardened X X
High tolerance to target run-out X X
Self-calibrating X X
Direction Sensing X
Lowest cost X
23
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Distance Amplifier)For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
34-20 DH1612-113 TTL Cable 15 3375
34-20 DH1622-113 ST Cable 15 3375
34-20 RH1612-013 TTL Cable 15 3375
34-20 RH1622-013 ST Cable 15 3375
34-20 DH1612-114 TTL Cable 275 4625
34-20 DH1622-114 ST Cable 275 462534-20 RH1612-014 TTL Cable 275 4625
34-20 RH1622-014 ST Cable 275 462534-20 DH1612-105 TTL Connector 15 3375
34-20 DH1622-105 ST Connector 15 3375
34-20 RH1612-005 TTL Connector 15 3375
34-20 RH1622-005 ST Connector 15 3375
34-20 DH1612-106 TTL Connector 275 4625
34-20 DH1622-106 ST Connector 275 4625
34-20 RH1612-006 TTL Connector 275 4625
34-20 RH1622-006 ST Connector 275 4625
34-20 DH1612-107 TTL Connector 4 6512
34-20 DH1622-107 ST Connector 4 6512
34-20 RH1612-007 TTL Connector 4 6512
34-20 RH1622-007 ST Connector 4 6512
34-20 DH1612-109 TTL Wires 15 3375
34-20 DH1622-109 ST Wires 15 3375
34-20 RH1612-009 TTL Wires 15 3375
34-20 RH1622-009 ST Wires 15 3375
34-20 DH1612-110 TTL Wires 275 4625
34-20 DH1622-110 ST Wires 275 4625
34-20 RH1612-010 TTL Wires 275 4625
34-20 RH1622-010 ST Wires 275 4625
34-20 RH1612-025 TTL Cable 1375 475 X
34-20 RH1612-026 TTL Cable 15 3375 X
34-20 RH1622-026 ST Cable 15 3375 X
34-20 RH1612-027 TTL Cable 275 4625 X
34-20 RH1622-027 ST Cable 275 4625 X
Active Sensor Selection Guide
RH amp DH Series
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283535
28
283535
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283535
28
283535
282929292929
Active Sensor Selection Guide
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
58-18 DH1512-113 TTL Cable 15 3375
58-18 DH1522-113 ST Cable 15 3375
58-18 RH1512-013 TTL Cable 15 3375
58-18 RH1522-013 ST Cable 15 3375
58-18 DH1512-114 TTL Cable 275 4625
58-18 DH1522-114 ST Cable 275 4625
58-18 RH1512-014 TTL Cable 275 4625
58-18 RH1522-014 ST Cable 275 4625
58-18 DH1512-105 TTL Connector 15 3375
58-18 DH1522-105 ST Connector 15 3375
58-18 RH1512-005 TTL Connector 15 3375
58-18 RH1522-005 ST Connector 15 3375
58-18 DH1512-106 TTL Connector 275 4625
58-18 DH1522-106 ST Connector 275 4625
58-18 RH1512-006 TTL Connector 275 4625
58-18 RH1522-006 ST Connector 275 4625
58-18 DH1512-107 TTL Connector 4 6512
58-18 DH1522-107 ST Connector 4 6512
58-18 RH1512-007 TTL Connector 4 6512
58-18 RH1522-007 ST Connector 4 6512
58-18 DH1512-109 TTL Cable 15 3375
58-18 DH1522-109 ST Cable 15 3375
58-18 RH1512-009 TTL Cable 15 3375
58-18 RH1522-009 ST Cable 15 3375
58-18 DH1512-110 TTL Cable 275 4625
58-18 DH1522-110 ST Cable 275 4625
58-18 RH1512-010 TTL Cable 275 4625
58-18 RH1522-010 ST Cable 275 4625
58-18 RH1512-026 TTL Cable 15 3375 X
58-18 RH1522-026 ST Cable 15 3375 X
58-18 RH1512-027 TTL Cable 275 4625 X
58-18 RH1522-027 ST Cable 275 4625 X
58-18 DH1512-210 ST Cable 275 275
58-18 DH1522-210 ST Cable 275 275
38-32 RH1320-001 ST Wires 163 163
38-32 RH1320-003 ST Cable 163 163
38-24 RH1320-009 ST Wires 163 163
38-24 RH1320-010 ST Cable 163 163
38-24 RH1320-012 ST Cable 3 3
38 Dia RH1320-005 ST Wires
38 Dia RH1320-006 ST Cable
NOTE RTD Temperature Sensing Feature
_ _
_ _
RH amp DH Series
25
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283535
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Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +46 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage
-30 Vdc
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap005 to 020 with a 24 diametral pitch gear005 to 030 with a 20 diametral pitch gear005 to 050 with a 12 diametral pitch gear005 to 075 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B 5NaCl for 48 hrs No visible corrosion
Humidity92 RH 40degC for 90 hrsNo visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 20 Irradiated cross-linked polyolefin
125degC
Rotational alignment of sensing face is notrequired for optimum output signal
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Note Either output will work with any AI-Tek Tachometer
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RH Series
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INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
RH1512-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-014 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-014 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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750-20 UNEF-2A
750-20 UNEF-2A
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
27
RH Series
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
RH1512-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1522-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1512-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
RH1522-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1512-007 625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1522-007 625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
RH1612-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1622-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1612-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
RH1622-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1612-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1622-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) Supply Tracking
Net Weight 7 oz max
Fully Threaded with Leads
Part Num Thread A Dimension Lead Length Output
RH1512-009 625-18 UNF-2A 1500 (38100) 12(304) TTL Compatible
RH1522-009 625-18 UNF-2A 1500 (38100) 12(304) Supply Tracking
RH1512-010 625-18 UNF-2A 2750 (69850) 12(304) TTL Compatible
RH1522-010 625-18 UNF-2A 2750 (69850) 12(304) Supply Tracking
RH1612-009 750-20 UNEF-2A 1500 (38100) 12(304) TTL Compatible
RH1622-009 750-20 UNEF-2A 1500 (38100) 12(304) Supply Tracking
RH1612-010 750-20 UNEF-2A 2750 (69850) 12(304) TTL Compatible
RH1622-010 750-20 UNEF-2A 2750 (69850) 12(304) Supply Tracking
Net Weight 3 oz max Dimensions in inches and (mm)
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RH Series
28
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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ARH Series
29
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
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RH Series
30
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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Dim A
Dimension A
1630
RH Series
1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
31
DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
38
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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A
(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
40
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 22: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/22.jpg)
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Specifications
PN 70082-1000-021 AT MT
PN 70082-1000-022 AT MT
PN 70082-1000-023 HT
PN 70082-1000-024 HT
Applications
22
Hall Effect Sensors
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for engine timing applications and has developed a line of durable products for
industrial use
With multiple standard variations we offer the widest range of standard catalog
sensors to meet your various design needs The design is flexible to easily meet all
of your application requirements
The Hall Effect sensor can sense each change in target movement regardless of speed
from near zero to 15 kHz frequency range generating a steady pulse train of frequency
proportional to target speed Typically each time a gear tooth (or any ferrous discontinuity)
passes in front of the sensor the output changes state This type of sensor is known as a P
type because it uses N-P-N transistor logic (as opposed to N type which uses P-N-P
transistor logic)
Key features to note are
bull Reverse voltage protection to prevent damage if miswired
bull Extended temperature range
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
AI-Tek has (3) Series of Hall Effect Sensors RH Series DH Series and BH Series
Below is a quick reference chart of the features of each of the series
It is the customers responsibility to determine whether the product is proper for customers use and application
PERFORMANCE RH SERIES DH SERIES BH SERIES1 Output Channel 1 Output Channel 2 Output Channels
+ Direction
Zero speed to 15kHz operation X X X
Standard gear tooth sensing X X X
Fine 32 DP Capability X X
Single tooth valley target X X
No installation alignment X
Extended airgap
(0100rdquo+ for 12DP and coarser targets) X X
General noise immunity X X X
EMI Hardened X X
High tolerance to target run-out X X
Self-calibrating X X
Direction Sensing X
Lowest cost X
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Distance Amplifier)For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
34-20 DH1612-113 TTL Cable 15 3375
34-20 DH1622-113 ST Cable 15 3375
34-20 RH1612-013 TTL Cable 15 3375
34-20 RH1622-013 ST Cable 15 3375
34-20 DH1612-114 TTL Cable 275 4625
34-20 DH1622-114 ST Cable 275 462534-20 RH1612-014 TTL Cable 275 4625
34-20 RH1622-014 ST Cable 275 462534-20 DH1612-105 TTL Connector 15 3375
34-20 DH1622-105 ST Connector 15 3375
34-20 RH1612-005 TTL Connector 15 3375
34-20 RH1622-005 ST Connector 15 3375
34-20 DH1612-106 TTL Connector 275 4625
34-20 DH1622-106 ST Connector 275 4625
34-20 RH1612-006 TTL Connector 275 4625
34-20 RH1622-006 ST Connector 275 4625
34-20 DH1612-107 TTL Connector 4 6512
34-20 DH1622-107 ST Connector 4 6512
34-20 RH1612-007 TTL Connector 4 6512
34-20 RH1622-007 ST Connector 4 6512
34-20 DH1612-109 TTL Wires 15 3375
34-20 DH1622-109 ST Wires 15 3375
34-20 RH1612-009 TTL Wires 15 3375
34-20 RH1622-009 ST Wires 15 3375
34-20 DH1612-110 TTL Wires 275 4625
34-20 DH1622-110 ST Wires 275 4625
34-20 RH1612-010 TTL Wires 275 4625
34-20 RH1622-010 ST Wires 275 4625
34-20 RH1612-025 TTL Cable 1375 475 X
34-20 RH1612-026 TTL Cable 15 3375 X
34-20 RH1622-026 ST Cable 15 3375 X
34-20 RH1612-027 TTL Cable 275 4625 X
34-20 RH1622-027 ST Cable 275 4625 X
Active Sensor Selection Guide
RH amp DH Series
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Active Sensor Selection Guide
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
58-18 DH1512-113 TTL Cable 15 3375
58-18 DH1522-113 ST Cable 15 3375
58-18 RH1512-013 TTL Cable 15 3375
58-18 RH1522-013 ST Cable 15 3375
58-18 DH1512-114 TTL Cable 275 4625
58-18 DH1522-114 ST Cable 275 4625
58-18 RH1512-014 TTL Cable 275 4625
58-18 RH1522-014 ST Cable 275 4625
58-18 DH1512-105 TTL Connector 15 3375
58-18 DH1522-105 ST Connector 15 3375
58-18 RH1512-005 TTL Connector 15 3375
58-18 RH1522-005 ST Connector 15 3375
58-18 DH1512-106 TTL Connector 275 4625
58-18 DH1522-106 ST Connector 275 4625
58-18 RH1512-006 TTL Connector 275 4625
58-18 RH1522-006 ST Connector 275 4625
58-18 DH1512-107 TTL Connector 4 6512
58-18 DH1522-107 ST Connector 4 6512
58-18 RH1512-007 TTL Connector 4 6512
58-18 RH1522-007 ST Connector 4 6512
58-18 DH1512-109 TTL Cable 15 3375
58-18 DH1522-109 ST Cable 15 3375
58-18 RH1512-009 TTL Cable 15 3375
58-18 RH1522-009 ST Cable 15 3375
58-18 DH1512-110 TTL Cable 275 4625
58-18 DH1522-110 ST Cable 275 4625
58-18 RH1512-010 TTL Cable 275 4625
58-18 RH1522-010 ST Cable 275 4625
58-18 RH1512-026 TTL Cable 15 3375 X
58-18 RH1522-026 ST Cable 15 3375 X
58-18 RH1512-027 TTL Cable 275 4625 X
58-18 RH1522-027 ST Cable 275 4625 X
58-18 DH1512-210 ST Cable 275 275
58-18 DH1522-210 ST Cable 275 275
38-32 RH1320-001 ST Wires 163 163
38-32 RH1320-003 ST Cable 163 163
38-24 RH1320-009 ST Wires 163 163
38-24 RH1320-010 ST Cable 163 163
38-24 RH1320-012 ST Cable 3 3
38 Dia RH1320-005 ST Wires
38 Dia RH1320-006 ST Cable
NOTE RTD Temperature Sensing Feature
_ _
_ _
RH amp DH Series
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Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +46 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage
-30 Vdc
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap005 to 020 with a 24 diametral pitch gear005 to 030 with a 20 diametral pitch gear005 to 050 with a 12 diametral pitch gear005 to 075 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B 5NaCl for 48 hrs No visible corrosion
Humidity92 RH 40degC for 90 hrsNo visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 20 Irradiated cross-linked polyolefin
125degC
Rotational alignment of sensing face is notrequired for optimum output signal
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Note Either output will work with any AI-Tek Tachometer
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RH Series
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INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
RH1512-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-014 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-014 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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750-20 UNEF-2A
750-20 UNEF-2A
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
27
RH Series
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
RH1512-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1522-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1512-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
RH1522-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1512-007 625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1522-007 625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
RH1612-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1622-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1612-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
RH1622-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1612-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1622-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) Supply Tracking
Net Weight 7 oz max
Fully Threaded with Leads
Part Num Thread A Dimension Lead Length Output
RH1512-009 625-18 UNF-2A 1500 (38100) 12(304) TTL Compatible
RH1522-009 625-18 UNF-2A 1500 (38100) 12(304) Supply Tracking
RH1512-010 625-18 UNF-2A 2750 (69850) 12(304) TTL Compatible
RH1522-010 625-18 UNF-2A 2750 (69850) 12(304) Supply Tracking
RH1612-009 750-20 UNEF-2A 1500 (38100) 12(304) TTL Compatible
RH1622-009 750-20 UNEF-2A 1500 (38100) 12(304) Supply Tracking
RH1612-010 750-20 UNEF-2A 2750 (69850) 12(304) TTL Compatible
RH1622-010 750-20 UNEF-2A 2750 (69850) 12(304) Supply Tracking
Net Weight 3 oz max Dimensions in inches and (mm)
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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ARH Series
29
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
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RH Series
30
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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Dim A
Dimension A
1630
RH Series
1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
31
DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
38
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
40
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
44
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
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45
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
46
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Steel Split Gear
Solid Steel Gear
47
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
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Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
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Printed in USA1300-O 712
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Hall Effect Sensors
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for engine timing applications and has developed a line of durable products for
industrial use
With multiple standard variations we offer the widest range of standard catalog
sensors to meet your various design needs The design is flexible to easily meet all
of your application requirements
The Hall Effect sensor can sense each change in target movement regardless of speed
from near zero to 15 kHz frequency range generating a steady pulse train of frequency
proportional to target speed Typically each time a gear tooth (or any ferrous discontinuity)
passes in front of the sensor the output changes state This type of sensor is known as a P
type because it uses N-P-N transistor logic (as opposed to N type which uses P-N-P
transistor logic)
Key features to note are
bull Reverse voltage protection to prevent damage if miswired
bull Extended temperature range
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
AI-Tek has (3) Series of Hall Effect Sensors RH Series DH Series and BH Series
Below is a quick reference chart of the features of each of the series
It is the customers responsibility to determine whether the product is proper for customers use and application
PERFORMANCE RH SERIES DH SERIES BH SERIES1 Output Channel 1 Output Channel 2 Output Channels
+ Direction
Zero speed to 15kHz operation X X X
Standard gear tooth sensing X X X
Fine 32 DP Capability X X
Single tooth valley target X X
No installation alignment X
Extended airgap
(0100rdquo+ for 12DP and coarser targets) X X
General noise immunity X X X
EMI Hardened X X
High tolerance to target run-out X X
Self-calibrating X X
Direction Sensing X
Lowest cost X
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Distance Amplifier)For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
34-20 DH1612-113 TTL Cable 15 3375
34-20 DH1622-113 ST Cable 15 3375
34-20 RH1612-013 TTL Cable 15 3375
34-20 RH1622-013 ST Cable 15 3375
34-20 DH1612-114 TTL Cable 275 4625
34-20 DH1622-114 ST Cable 275 462534-20 RH1612-014 TTL Cable 275 4625
34-20 RH1622-014 ST Cable 275 462534-20 DH1612-105 TTL Connector 15 3375
34-20 DH1622-105 ST Connector 15 3375
34-20 RH1612-005 TTL Connector 15 3375
34-20 RH1622-005 ST Connector 15 3375
34-20 DH1612-106 TTL Connector 275 4625
34-20 DH1622-106 ST Connector 275 4625
34-20 RH1612-006 TTL Connector 275 4625
34-20 RH1622-006 ST Connector 275 4625
34-20 DH1612-107 TTL Connector 4 6512
34-20 DH1622-107 ST Connector 4 6512
34-20 RH1612-007 TTL Connector 4 6512
34-20 RH1622-007 ST Connector 4 6512
34-20 DH1612-109 TTL Wires 15 3375
34-20 DH1622-109 ST Wires 15 3375
34-20 RH1612-009 TTL Wires 15 3375
34-20 RH1622-009 ST Wires 15 3375
34-20 DH1612-110 TTL Wires 275 4625
34-20 DH1622-110 ST Wires 275 4625
34-20 RH1612-010 TTL Wires 275 4625
34-20 RH1622-010 ST Wires 275 4625
34-20 RH1612-025 TTL Cable 1375 475 X
34-20 RH1612-026 TTL Cable 15 3375 X
34-20 RH1622-026 ST Cable 15 3375 X
34-20 RH1612-027 TTL Cable 275 4625 X
34-20 RH1622-027 ST Cable 275 4625 X
Active Sensor Selection Guide
RH amp DH Series
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Active Sensor Selection Guide
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
58-18 DH1512-113 TTL Cable 15 3375
58-18 DH1522-113 ST Cable 15 3375
58-18 RH1512-013 TTL Cable 15 3375
58-18 RH1522-013 ST Cable 15 3375
58-18 DH1512-114 TTL Cable 275 4625
58-18 DH1522-114 ST Cable 275 4625
58-18 RH1512-014 TTL Cable 275 4625
58-18 RH1522-014 ST Cable 275 4625
58-18 DH1512-105 TTL Connector 15 3375
58-18 DH1522-105 ST Connector 15 3375
58-18 RH1512-005 TTL Connector 15 3375
58-18 RH1522-005 ST Connector 15 3375
58-18 DH1512-106 TTL Connector 275 4625
58-18 DH1522-106 ST Connector 275 4625
58-18 RH1512-006 TTL Connector 275 4625
58-18 RH1522-006 ST Connector 275 4625
58-18 DH1512-107 TTL Connector 4 6512
58-18 DH1522-107 ST Connector 4 6512
58-18 RH1512-007 TTL Connector 4 6512
58-18 RH1522-007 ST Connector 4 6512
58-18 DH1512-109 TTL Cable 15 3375
58-18 DH1522-109 ST Cable 15 3375
58-18 RH1512-009 TTL Cable 15 3375
58-18 RH1522-009 ST Cable 15 3375
58-18 DH1512-110 TTL Cable 275 4625
58-18 DH1522-110 ST Cable 275 4625
58-18 RH1512-010 TTL Cable 275 4625
58-18 RH1522-010 ST Cable 275 4625
58-18 RH1512-026 TTL Cable 15 3375 X
58-18 RH1522-026 ST Cable 15 3375 X
58-18 RH1512-027 TTL Cable 275 4625 X
58-18 RH1522-027 ST Cable 275 4625 X
58-18 DH1512-210 ST Cable 275 275
58-18 DH1522-210 ST Cable 275 275
38-32 RH1320-001 ST Wires 163 163
38-32 RH1320-003 ST Cable 163 163
38-24 RH1320-009 ST Wires 163 163
38-24 RH1320-010 ST Cable 163 163
38-24 RH1320-012 ST Cable 3 3
38 Dia RH1320-005 ST Wires
38 Dia RH1320-006 ST Cable
NOTE RTD Temperature Sensing Feature
_ _
_ _
RH amp DH Series
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Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +46 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage
-30 Vdc
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap005 to 020 with a 24 diametral pitch gear005 to 030 with a 20 diametral pitch gear005 to 050 with a 12 diametral pitch gear005 to 075 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B 5NaCl for 48 hrs No visible corrosion
Humidity92 RH 40degC for 90 hrsNo visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 20 Irradiated cross-linked polyolefin
125degC
Rotational alignment of sensing face is notrequired for optimum output signal
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Note Either output will work with any AI-Tek Tachometer
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RH Series
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INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
RH1512-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-014 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-014 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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750-20 UNEF-2A
750-20 UNEF-2A
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
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RH Series
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
RH1512-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1522-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1512-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
RH1522-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1512-007 625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1522-007 625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
RH1612-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1622-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1612-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
RH1622-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1612-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1622-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) Supply Tracking
Net Weight 7 oz max
Fully Threaded with Leads
Part Num Thread A Dimension Lead Length Output
RH1512-009 625-18 UNF-2A 1500 (38100) 12(304) TTL Compatible
RH1522-009 625-18 UNF-2A 1500 (38100) 12(304) Supply Tracking
RH1512-010 625-18 UNF-2A 2750 (69850) 12(304) TTL Compatible
RH1522-010 625-18 UNF-2A 2750 (69850) 12(304) Supply Tracking
RH1612-009 750-20 UNEF-2A 1500 (38100) 12(304) TTL Compatible
RH1622-009 750-20 UNEF-2A 1500 (38100) 12(304) Supply Tracking
RH1612-010 750-20 UNEF-2A 2750 (69850) 12(304) TTL Compatible
RH1622-010 750-20 UNEF-2A 2750 (69850) 12(304) Supply Tracking
Net Weight 3 oz max Dimensions in inches and (mm)
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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ARH Series
29
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
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RH Series
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Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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Dim A
Dimension A
1630
RH Series
1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
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DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
38
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
40
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
44
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
46
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
50
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
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Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
34-20 DH1612-113 TTL Cable 15 3375
34-20 DH1622-113 ST Cable 15 3375
34-20 RH1612-013 TTL Cable 15 3375
34-20 RH1622-013 ST Cable 15 3375
34-20 DH1612-114 TTL Cable 275 4625
34-20 DH1622-114 ST Cable 275 462534-20 RH1612-014 TTL Cable 275 4625
34-20 RH1622-014 ST Cable 275 462534-20 DH1612-105 TTL Connector 15 3375
34-20 DH1622-105 ST Connector 15 3375
34-20 RH1612-005 TTL Connector 15 3375
34-20 RH1622-005 ST Connector 15 3375
34-20 DH1612-106 TTL Connector 275 4625
34-20 DH1622-106 ST Connector 275 4625
34-20 RH1612-006 TTL Connector 275 4625
34-20 RH1622-006 ST Connector 275 4625
34-20 DH1612-107 TTL Connector 4 6512
34-20 DH1622-107 ST Connector 4 6512
34-20 RH1612-007 TTL Connector 4 6512
34-20 RH1622-007 ST Connector 4 6512
34-20 DH1612-109 TTL Wires 15 3375
34-20 DH1622-109 ST Wires 15 3375
34-20 RH1612-009 TTL Wires 15 3375
34-20 RH1622-009 ST Wires 15 3375
34-20 DH1612-110 TTL Wires 275 4625
34-20 DH1622-110 ST Wires 275 4625
34-20 RH1612-010 TTL Wires 275 4625
34-20 RH1622-010 ST Wires 275 4625
34-20 RH1612-025 TTL Cable 1375 475 X
34-20 RH1612-026 TTL Cable 15 3375 X
34-20 RH1622-026 ST Cable 15 3375 X
34-20 RH1612-027 TTL Cable 275 4625 X
34-20 RH1622-027 ST Cable 275 4625 X
Active Sensor Selection Guide
RH amp DH Series
24
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283535
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283535
282929292929
Active Sensor Selection Guide
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
58-18 DH1512-113 TTL Cable 15 3375
58-18 DH1522-113 ST Cable 15 3375
58-18 RH1512-013 TTL Cable 15 3375
58-18 RH1522-013 ST Cable 15 3375
58-18 DH1512-114 TTL Cable 275 4625
58-18 DH1522-114 ST Cable 275 4625
58-18 RH1512-014 TTL Cable 275 4625
58-18 RH1522-014 ST Cable 275 4625
58-18 DH1512-105 TTL Connector 15 3375
58-18 DH1522-105 ST Connector 15 3375
58-18 RH1512-005 TTL Connector 15 3375
58-18 RH1522-005 ST Connector 15 3375
58-18 DH1512-106 TTL Connector 275 4625
58-18 DH1522-106 ST Connector 275 4625
58-18 RH1512-006 TTL Connector 275 4625
58-18 RH1522-006 ST Connector 275 4625
58-18 DH1512-107 TTL Connector 4 6512
58-18 DH1522-107 ST Connector 4 6512
58-18 RH1512-007 TTL Connector 4 6512
58-18 RH1522-007 ST Connector 4 6512
58-18 DH1512-109 TTL Cable 15 3375
58-18 DH1522-109 ST Cable 15 3375
58-18 RH1512-009 TTL Cable 15 3375
58-18 RH1522-009 ST Cable 15 3375
58-18 DH1512-110 TTL Cable 275 4625
58-18 DH1522-110 ST Cable 275 4625
58-18 RH1512-010 TTL Cable 275 4625
58-18 RH1522-010 ST Cable 275 4625
58-18 RH1512-026 TTL Cable 15 3375 X
58-18 RH1522-026 ST Cable 15 3375 X
58-18 RH1512-027 TTL Cable 275 4625 X
58-18 RH1522-027 ST Cable 275 4625 X
58-18 DH1512-210 ST Cable 275 275
58-18 DH1522-210 ST Cable 275 275
38-32 RH1320-001 ST Wires 163 163
38-32 RH1320-003 ST Cable 163 163
38-24 RH1320-009 ST Wires 163 163
38-24 RH1320-010 ST Cable 163 163
38-24 RH1320-012 ST Cable 3 3
38 Dia RH1320-005 ST Wires
38 Dia RH1320-006 ST Cable
NOTE RTD Temperature Sensing Feature
_ _
_ _
RH amp DH Series
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Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +46 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage
-30 Vdc
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap005 to 020 with a 24 diametral pitch gear005 to 030 with a 20 diametral pitch gear005 to 050 with a 12 diametral pitch gear005 to 075 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B 5NaCl for 48 hrs No visible corrosion
Humidity92 RH 40degC for 90 hrsNo visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 20 Irradiated cross-linked polyolefin
125degC
Rotational alignment of sensing face is notrequired for optimum output signal
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Note Either output will work with any AI-Tek Tachometer
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RH Series
26
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
RH1512-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-014 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-014 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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750-20 UNEF-2A
750-20 UNEF-2A
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
27
RH Series
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
RH1512-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1522-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1512-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
RH1522-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1512-007 625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1522-007 625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
RH1612-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1622-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1612-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
RH1622-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1612-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1622-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) Supply Tracking
Net Weight 7 oz max
Fully Threaded with Leads
Part Num Thread A Dimension Lead Length Output
RH1512-009 625-18 UNF-2A 1500 (38100) 12(304) TTL Compatible
RH1522-009 625-18 UNF-2A 1500 (38100) 12(304) Supply Tracking
RH1512-010 625-18 UNF-2A 2750 (69850) 12(304) TTL Compatible
RH1522-010 625-18 UNF-2A 2750 (69850) 12(304) Supply Tracking
RH1612-009 750-20 UNEF-2A 1500 (38100) 12(304) TTL Compatible
RH1622-009 750-20 UNEF-2A 1500 (38100) 12(304) Supply Tracking
RH1612-010 750-20 UNEF-2A 2750 (69850) 12(304) TTL Compatible
RH1622-010 750-20 UNEF-2A 2750 (69850) 12(304) Supply Tracking
Net Weight 3 oz max Dimensions in inches and (mm)
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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ARH Series
29
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
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Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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1630
RH Series
1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
31
DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
46
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 25: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/25.jpg)
Active Sensor Selection Guide
Thread Size
Part
Number
Supply
Tracking
or TTL Termination
Thread
Length
(in)
Sensor
Length
(in)
Agency
Approval Page
58-18 DH1512-113 TTL Cable 15 3375
58-18 DH1522-113 ST Cable 15 3375
58-18 RH1512-013 TTL Cable 15 3375
58-18 RH1522-013 ST Cable 15 3375
58-18 DH1512-114 TTL Cable 275 4625
58-18 DH1522-114 ST Cable 275 4625
58-18 RH1512-014 TTL Cable 275 4625
58-18 RH1522-014 ST Cable 275 4625
58-18 DH1512-105 TTL Connector 15 3375
58-18 DH1522-105 ST Connector 15 3375
58-18 RH1512-005 TTL Connector 15 3375
58-18 RH1522-005 ST Connector 15 3375
58-18 DH1512-106 TTL Connector 275 4625
58-18 DH1522-106 ST Connector 275 4625
58-18 RH1512-006 TTL Connector 275 4625
58-18 RH1522-006 ST Connector 275 4625
58-18 DH1512-107 TTL Connector 4 6512
58-18 DH1522-107 ST Connector 4 6512
58-18 RH1512-007 TTL Connector 4 6512
58-18 RH1522-007 ST Connector 4 6512
58-18 DH1512-109 TTL Cable 15 3375
58-18 DH1522-109 ST Cable 15 3375
58-18 RH1512-009 TTL Cable 15 3375
58-18 RH1522-009 ST Cable 15 3375
58-18 DH1512-110 TTL Cable 275 4625
58-18 DH1522-110 ST Cable 275 4625
58-18 RH1512-010 TTL Cable 275 4625
58-18 RH1522-010 ST Cable 275 4625
58-18 RH1512-026 TTL Cable 15 3375 X
58-18 RH1522-026 ST Cable 15 3375 X
58-18 RH1512-027 TTL Cable 275 4625 X
58-18 RH1522-027 ST Cable 275 4625 X
58-18 DH1512-210 ST Cable 275 275
58-18 DH1522-210 ST Cable 275 275
38-32 RH1320-001 ST Wires 163 163
38-32 RH1320-003 ST Cable 163 163
38-24 RH1320-009 ST Wires 163 163
38-24 RH1320-010 ST Cable 163 163
38-24 RH1320-012 ST Cable 3 3
38 Dia RH1320-005 ST Wires
38 Dia RH1320-006 ST Cable
NOTE RTD Temperature Sensing Feature
_ _
_ _
RH amp DH Series
25
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27273434
27273434
283535
28
283535
28
283535
28
283535
28
283535
2829292929363631313131313131
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +46 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage
-30 Vdc
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap005 to 020 with a 24 diametral pitch gear005 to 030 with a 20 diametral pitch gear005 to 050 with a 12 diametral pitch gear005 to 075 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B 5NaCl for 48 hrs No visible corrosion
Humidity92 RH 40degC for 90 hrsNo visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 20 Irradiated cross-linked polyolefin
125degC
Rotational alignment of sensing face is notrequired for optimum output signal
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Note Either output will work with any AI-Tek Tachometer
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A
RH Series
26
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
RH1512-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-014 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-014 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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Instr
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TU
SA
750-20 UNEF-2A
750-20 UNEF-2A
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
27
RH Series
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
RH1512-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1522-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1512-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
RH1522-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1512-007 625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1522-007 625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
RH1612-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1622-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1612-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
RH1622-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1612-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1622-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) Supply Tracking
Net Weight 7 oz max
Fully Threaded with Leads
Part Num Thread A Dimension Lead Length Output
RH1512-009 625-18 UNF-2A 1500 (38100) 12(304) TTL Compatible
RH1522-009 625-18 UNF-2A 1500 (38100) 12(304) Supply Tracking
RH1512-010 625-18 UNF-2A 2750 (69850) 12(304) TTL Compatible
RH1522-010 625-18 UNF-2A 2750 (69850) 12(304) Supply Tracking
RH1612-009 750-20 UNEF-2A 1500 (38100) 12(304) TTL Compatible
RH1622-009 750-20 UNEF-2A 1500 (38100) 12(304) Supply Tracking
RH1612-010 750-20 UNEF-2A 2750 (69850) 12(304) TTL Compatible
RH1622-010 750-20 UNEF-2A 2750 (69850) 12(304) Supply Tracking
Net Weight 3 oz max Dimensions in inches and (mm)
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RH Series
28
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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ARH Series
29
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
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C
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CT
US
A
RH Series
30
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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Dim A
Dimension A
1630
RH Series
1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
31
DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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Instr
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
38
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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A
(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
40
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 26: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/26.jpg)
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +46 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage
-30 Vdc
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap005 to 020 with a 24 diametral pitch gear005 to 030 with a 20 diametral pitch gear005 to 050 with a 12 diametral pitch gear005 to 075 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B 5NaCl for 48 hrs No visible corrosion
Humidity92 RH 40degC for 90 hrsNo visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 20 Irradiated cross-linked polyolefin
125degC
Rotational alignment of sensing face is notrequired for optimum output signal
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Note Either output will work with any AI-Tek Tachometer
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RH Series
26
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
RH1512-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-014 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-014 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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750-20 UNEF-2A
750-20 UNEF-2A
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
27
RH Series
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
RH1512-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1522-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1512-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
RH1522-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1512-007 625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1522-007 625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
RH1612-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1622-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1612-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
RH1622-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1612-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1622-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) Supply Tracking
Net Weight 7 oz max
Fully Threaded with Leads
Part Num Thread A Dimension Lead Length Output
RH1512-009 625-18 UNF-2A 1500 (38100) 12(304) TTL Compatible
RH1522-009 625-18 UNF-2A 1500 (38100) 12(304) Supply Tracking
RH1512-010 625-18 UNF-2A 2750 (69850) 12(304) TTL Compatible
RH1522-010 625-18 UNF-2A 2750 (69850) 12(304) Supply Tracking
RH1612-009 750-20 UNEF-2A 1500 (38100) 12(304) TTL Compatible
RH1622-009 750-20 UNEF-2A 1500 (38100) 12(304) Supply Tracking
RH1612-010 750-20 UNEF-2A 2750 (69850) 12(304) TTL Compatible
RH1622-010 750-20 UNEF-2A 2750 (69850) 12(304) Supply Tracking
Net Weight 3 oz max Dimensions in inches and (mm)
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RH Series
28
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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ARH Series
29
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
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RH Series
30
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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Dim A
Dimension A
1630
RH Series
1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
31
DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
40
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
46
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
50
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 27: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/27.jpg)
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
RH1512-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-013 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-014 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-013 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-014 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-014 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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750-20 UNEF-2A
750-20 UNEF-2A
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
27
RH Series
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
RH1512-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1522-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1512-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
RH1522-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1512-007 625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1522-007 625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
RH1612-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1622-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1612-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
RH1622-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1612-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1622-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) Supply Tracking
Net Weight 7 oz max
Fully Threaded with Leads
Part Num Thread A Dimension Lead Length Output
RH1512-009 625-18 UNF-2A 1500 (38100) 12(304) TTL Compatible
RH1522-009 625-18 UNF-2A 1500 (38100) 12(304) Supply Tracking
RH1512-010 625-18 UNF-2A 2750 (69850) 12(304) TTL Compatible
RH1522-010 625-18 UNF-2A 2750 (69850) 12(304) Supply Tracking
RH1612-009 750-20 UNEF-2A 1500 (38100) 12(304) TTL Compatible
RH1622-009 750-20 UNEF-2A 1500 (38100) 12(304) Supply Tracking
RH1612-010 750-20 UNEF-2A 2750 (69850) 12(304) TTL Compatible
RH1622-010 750-20 UNEF-2A 2750 (69850) 12(304) Supply Tracking
Net Weight 3 oz max Dimensions in inches and (mm)
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RH Series
28
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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ARH Series
29
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
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RH Series
30
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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Dim A
Dimension A
1630
RH Series
1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
31
DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
38
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 28: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/28.jpg)
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
RH1512-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1522-005 625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1512-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
RH1522-006 625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1512-007 625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1522-007 625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
RH1612-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
RH1622-005 750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
RH1612-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
RH1622-006 750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
RH1612-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
RH1622-007 750-20 UNEF-2A 4000 (101600) 5875 (149225) 6512 (165405) Supply Tracking
Net Weight 7 oz max
Fully Threaded with Leads
Part Num Thread A Dimension Lead Length Output
RH1512-009 625-18 UNF-2A 1500 (38100) 12(304) TTL Compatible
RH1522-009 625-18 UNF-2A 1500 (38100) 12(304) Supply Tracking
RH1512-010 625-18 UNF-2A 2750 (69850) 12(304) TTL Compatible
RH1522-010 625-18 UNF-2A 2750 (69850) 12(304) Supply Tracking
RH1612-009 750-20 UNEF-2A 1500 (38100) 12(304) TTL Compatible
RH1622-009 750-20 UNEF-2A 1500 (38100) 12(304) Supply Tracking
RH1612-010 750-20 UNEF-2A 2750 (69850) 12(304) TTL Compatible
RH1622-010 750-20 UNEF-2A 2750 (69850) 12(304) Supply Tracking
Net Weight 3 oz max Dimensions in inches and (mm)
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RH Series
28
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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ARH Series
29
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
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RH Series
30
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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Dim A
Dimension A
1630
RH Series
1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
31
DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
38
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
40
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
44
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
46
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
50
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 29: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/29.jpg)
Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
ULCSA Explosion Proof Sensors
Part Num Thread Thread Length Overall Length Cable Length Output
RH1612-025 750-20 UNEF-2A 1375 (3492) 4750 (12065) 10 ft (3 0 m) TTL Compatible
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuitsNet Weight 23 oz max
Part Num Thread A Dimension B Dimension Cable Length Output
RH1512-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1522-026 625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1512-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1522-027 625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
RH1612-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
RH1622-026 750-20 UNEF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
RH1612-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
RH1622-027 750-20 UNEF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Rating UL amp CSA listed for hazardous locations Class I Div 1 Groups A B C amp D Class II Div 1 Groups E F amp G Temp Code T4A Connect only to NEC Class 2 circuits Net Weight 9 oz max
Dimensions in inches and (mm)
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ARH Series
29
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
INTERNAL
SENSOR
CIRCUITRY
2200ohms
VIN SUPPLY (+)
VOUT
COMMONGND (-)
EARTH GNDHOUSING
TTL Compatible Fig 1 Supply Tracking Fig 2
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
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RH Series
30
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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Dim A
Dimension A
1630
RH Series
1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
31
DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
38
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
40
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 30: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/30.jpg)
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Note Will work with any AI-Tek Tachometer
Dimensions in inches and (mm)
SpecificationsPower SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
Supply Tracking (See Figure 1)
50 plusmn15 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance
22K Ohms plusmn5
Output Current
20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 015 with a 24 diametral pitch gear
005 to 025 with a 20 diametral pitch gear
005 to 050 with a 12 diametral pitch gear
005 to 065 with an 8 diametral pitch gear
EnvironmentalOperating Temperature
-25degC to + 125degC (105degC Cable)
MaterialsHousing
300 series stainless steel
Leads
AWG 24 Teflon 200degC
Cable
AWG 26 PVC 105degC
Rotational alignment of sensing face is not re-
quired for optimum output signal
Supply Tracking
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RH Series
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Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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Dim A
Dimension A
1630
RH Series
1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
31
DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
38
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
40
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
44
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
C
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
50
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 31: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/31.jpg)
Zero Velocity - Magnetic Hall Effect Sensors - 38 Diameter
Fully Threaded
New Weight 07 oz max
Round Body
Dimensions in inches and (mm)
Part Num Thread Cable Length (C) Lead Length (L)
RH1320-001 375-32 UNEF-2A mdash 12 (304)
RH1320-003 375-32 UNEF-2A 10 ft (305 m) mdash
RH1320-009 375-24 UNF-2A mdash 12 (304)
RH1320-010 375-24 UNF-2A 10 ft (305 m) mdash
Part Num Cable Length (C) Lead Length (L)
RH1320-005 mdash 12 (304)
RH1320-006 10 ft (305 m) mdash
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Dim A
Dimension A
1630
RH Series
1630
1630
1630
375-24 UNF-2A 10 ft (305 m) mdash012RH1320- 3000
31
DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
46
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
50
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 32: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/32.jpg)
DH SERIES
AI-Tek has taken its years of experience of designing and manufacturing Hall Effect
sensors for harsh applications and has developed a line of durable products for industrial rail
military and automotive use
The new Al-TEK DH series sensors are differential based zero-speed precision single
channel speed sensors At power-up they calibrate themselves to the unique magnetic
signature of their installed application and continue to update the calibration as the sensor is
running This unique combination of differential sensing technology and calibration make these
sensors highly tolerant of installation mis-alignment target geometry and composition target
run-out vibration and air gap changes
In comparison the RH series are single-element based zero speed single channel speed
sensors and are an excellent choice for general purpose speed sensing Unlike the DH series
that requires rotational alignment at installation the RH requires no alignment Air gap
adjustment is precise and easy and similar to a VR type sensor
The new DH sensor can sense each change in target movement regardless of speed
from zero to 15 kHz frequency range generating a steady pulse train of frequency proportional
to target speed Typically each time a gear tooth (or any ferrous discontinuity) passes in front of
the sensor the output changes state This type of sensor is known as a P type because it uses
N-P-N transistor logic (as opposed to N type which uses P-N-P transistor logic)
Key features
bull Reverse voltage protection to prevent damage if miswired
bull Wide range of supply voltage
bull Two output options of Supply Tracking or TTL Compatible
bull Rugged design meeting IEC 77 Standards (European Railroad Applications)
bull Require special alignment
bull Improved duty cycle
bull Improved fine pitch performance
bull Increased air gaps
Suitable for 32 diametral pitch or coarser gear (target) the standard catalog
sensors are easily applied to your various sensing needs If you have a unique special
requirement which cannot be met with any of the standard options we will gladly review your
specs and work with you on a special sensor design
It is the customers responsibility to determine whether the product is proper for customers use and application
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Zero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
bull Extended temperature range
bull Special circuitry provides high level of EM1 hardness
bull Select versions equipped with RTD temperature measurement output
32
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
38
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
40
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
44
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
46
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
50
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 33: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/33.jpg)
Specifications
Power SupplyPower Supply Voltage
45 - 24 Vdc
Power Supply Current
50 mA maximum
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 +4 to +5 Vdc 5mA
Supply Tracking (See Figure 2)
50 plusmn10 duty cycle
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current 20 mA sink maximum
Output Current - Short Circuit
5 mA maximum with 10V power supply
Reverse Battery Voltage -30 Vdc
Defined Power on State - High
Single ToothValley Compatible
MechanicalTarget Frequency
0 to 15 kHz
Target Air Gap
005 to 055 with a 24 diametral pitch gear
005 to 100 with a 20 diametral pitch gear
005 to 120 with a 12 diametral pitch gear
005 to 175 with an 8 diametral pitch gear
Automatic CalibrationPower up +3 edgesRunning Update
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
ity92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mAmax leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g)for 15 min
Shock
Per MIL-STD-202 method 213b (sawtooth) test cond HampI (1 00g 6 ms) 3 shocks mutually perpendicular planes
MaterialsHousing
300 series stainless steel
Connector MIL StyleMates with MS3106A10SL-3S
Leads (Available on special request)AWG 24 Teflon 200degC
Cable AWG 20 Irradiated cross-linked polyolefin125degC
AlignmentRotational alignment of sensing face isrequired for optimum output signal Align flats with direction of rotation
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ADH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Humid
005 to 025 with a 32 diametral pitch gear
33
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
VOUT
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
40
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
44
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
46
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
50
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 34: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/34.jpg)
Hex Body with Cable
Part Num Thread ldquoA Dimension B Dimension Cable Length Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 10 ft (305m) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 10 ft (305m) Supply Tracking
Net Weight 9 oz max
Dimensions in inches and (mm)
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DH1512-113
DH1522-113
DH1512-114
DH1522-114
DH SERIES
Vin
34
Zero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
40
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
44
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
46
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Steel Split Gear
Solid Steel Gear
47
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
50
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 35: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/35.jpg)
Net Weight 7 oz max
Fully Threaded with Leads
Net Weight 3 oz max
Dimensions in inches and (mm)
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Round Body with Connector
Part Num Thread A Dimension B Dimension C Dimension Output
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
625-18 UNF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133-655) TTL Compatible
625-18 UNF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
625-18 UNF-2A 4000 (101600) 5875 (149225) 6512 (165405) TTL Compatible
625-18 UNF-2A 4000 (101600) 5875 (149225 6512 ( 65405) Supply Tracking
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) TTL Compatible
750-20 UNEF-2A 1500 (38100) 3375 (85725) 4012 (101905) Supply Tracking
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) TTL Compatible
750-20 UNEF-2A 2750 (69850) 4625 (117475) 5262 (133655) Supply Tracking
DH1512-105
DH1522-105
DH1512-106
DH1522-106
DH1512-107
DH1522-107
DH1612-105
DH1612-106
DH1622-105
DH1622-106
Part Num Thread A Dimension Output
625-18 UNF-2A 1500 (38100) TTL Compatible
625-18 UNF-2A 1500 (38100) Supply Tracking
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-109
DH1522-109
DH1512-110
DH1522-110
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 and 34 Threads
Vin
35
Cable Length
10 ft (305m)
10 ft (305m)
10 ft (305m)
10 ft (305m)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
36
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
40
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
46
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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A
Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
50
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 36: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/36.jpg)
Part Num Thread A Dimension Output
625-18 UNF-2A 2750 (69850) TTL Compatible
625-18 UNF-2A 2750 (69850) Supply Tracking
DH1512-210
DH1522-210
Sensor Resistance 0degC = 100 Ω in air
Temp coefficient (0degC - 100degC) = 000385 ΩΩdegC (AVE)
T = [(R100-1) x 259740degC plusmn15degC
Vmax = 1 vdc Imax = 10mA
DH SERIESZero Velocity - Magnetic Hall Effect Sensors - 58 Threads
Fully Threaded with Cable and Temperature Output
TEMPERATURE SENSOR
RTD
Vin
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100 ohms 0 deg C
RTD(ORG)
RTD(GRN)RTD
Cable Length
10 ft (305m)
10 ft (305m)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
50
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 37: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/37.jpg)
AI-Tek Bi-directional zero velocity sensors are self-calibrating to the specific customer
application and provide two independent frequency outputs and a direction signal output to
indicate change in direction of the sensed ferrous target
The Bi-directional sensor can also be referred to as a dual channel sensor since it utilizes two
Hall effect sensing elements physically offset from each other Each element generates a single
channel of target information identical in frequency and polarity but offset in the time domain
(phase shifted) Special circuits inside the sensor are designed to calibrate each channel to its
application target then analyze these two channels of information for a phase lead lag
condition The direction output will then provide a logic 1 level for clockwise or a logic 0 for
counterclockwise rotation assuming proper sensor orientation
It is the customerrsquos responsibility to determine whether the productis proper for customerrsquos use and application
AI-
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Distance Amplifier)
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
For applications that exceed 500 Ft (150 meters) go to page 42 for the DSDA (Digital Signal
37
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
38
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
44
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
46
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
50
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 38: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/38.jpg)
Active Sensor (Bi-Dir) Selection Guide
Thread Size
Part
Number
Supply
Tracking or
TTL Termination
Thread
Length
(in)
Sensor
Length
(in) Page
34-20 BH1612-001 TTL Connector 15 3375
34-20 BH1622-001 ST Connector 15 3375
34-20 BH1612-002 TTL Connector 275 4625
34-20 BH1622-002 ST Connector 275 4625
34-20 BH1612-013 TTL Cable 15 3375
34-20 BH1622-013 ST Cable 15 3375
34-20 BH1612-014 TTL Cable 275 4625
34-20 BH1622-014 ST Cable 275 4625
34-20 BH1612-005 TTL Connector 15 3375
34-20 BH1622-005 ST Connector 15 3375
34-20 BH1612-006 TTL Connector 275 4625
34-20 BH1622-006 ST Connector 275 4625
34-20 BH1612-009 TTL Cable 4 4
34-20 BH1622-009 ST Cable 4 4
34-20 BH1612-010 TTL Cable 6 6
34-20 BH1622-010 ST Cable 6 6
58-18 BH1512-001 TTL Connector 15 3375
58-18 BH1522-001 ST Connector 15 3375
58-18 BH1512-002 TTL Connector 275 4625
58-18 BH1522-002 ST Connector 275 4625
58-18 BH1512-013 TTL Cable 15 3375
58-18 BH1522-013 ST Cable 15 3375
58-18 BH1512-014 TTL Cable 275 4625
58-18 BH1522-014 ST Cable 275 4625
58-18 BH1512-005 TTL Connector 15 3375
58-18 BH1522-005 ST Connector 15 3375
58-18 BH1512-006 TTL Connector 275 4625
58-18 BH1522-006 ST Connector 275 4625
58-18 BH1512-009 TTL Cable 4 4
58-18 BH1522-009 ST Cable 4 4
58-18 BH1512-010 TTL Cable 6 6
58-18 BH1522-010 ST Cable 6 6
BH SERIES
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4040404040404040414141414141414140404040404040404141414141414141
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
40
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
C
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
46
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
50
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 39: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/39.jpg)
Specifications
Power SupplyPower Supply Voltage
Power Supply Current
OutputsOutput Voltage
Essentially square wave fanout to 10 TTL inputs
TTL Compatible (See Figure 1)
Logic 0 +6 Vdc maximum
Logic 1
Supply Tracking (See Figure 2)
Logic 0 +6 Vdc maximum
Logic 1 Vo = Vs x RL
RL + 22k
Output Impedance 22K Ohms plusmn5
Output Current
Reverse Battery Voltage -30 Vdc
MechanicalTarget Frequency 0 to 15 kHz
EnvironmentalOperating Temperature
-40degC to +125degC
Thermal Shock
100 cycles air to air (-40deg to +130degC)1 min ramp time with 30 min soak
Salt SprayPer MIL-STD-202 method 201 test cond B5 NaCl for 48 hrs No visible corrosion
Humidity
92 RH 40degC for 90 hrs No visible corrosion
Dielectric StrengthPer MIL-STD-202 method 301 1000 Vrms(60Hz) for 5 sec leads to case 10 mA max leakage
Insulation ResistancePer MIL-STD-202 method 302 500 Vdc for 30sec leads to case 100 mega-ohm min
VibrationPer MIL-STD-202 resonant frequency searchsine method 204 test cond CampD (20g)random method 214a test cond AampB (756g) for 15 min
ShockPer MIL-STD-202 method 213b (sawtooth)
mutually perpendicular planes
MaterialsHousing300 series stainless steel
Cable
100 mA maximum
40 to 60 duty cycle
+4 to +50 Vdc 5mA
40 to 60 duty cycle
Direction Logic
20 mA sink max 10 mA source max
Target Performance
test cond HampI (100g 6 ms) 3 shocks
EMCDesign principles consistent with BSEN and MIL-STDsfor EMC hardness
125degC 5 lead wires
Sensor must be aligned Target rotation toward notchflat results in Logic 1 direction output
Note Either output will work with any AI-Tek Tachometer
AI-
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DIAMETRAL
PITCH
8
10
12
20
24
32
AIRGAP RANGE
(Inches)
051 - 160
020 - 140
010 - 120
010 - 100
005 - 050
005 - 040
10 - 28 Vdc
Output high (Logic 1) with rotation toward notch
AWG 22 Irradiated cross-linked polyolefin
micromicro
Channel phasing 45deg to 135deg
RiseFall Time 5 s 3 typicals
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
39
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
INTERNAL
SENSOR
CIRCUITRY
22KVIN SUPPLY (+)
COMMONGND (-)
EMC
SECTION
TTL Compatible Fig 1 Supply Tracking Fig 2
VOUT(CH AB OUTPUT)
VOUT(CH AB OUTPUT)
AI-
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
40
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
AI-
Tek
Instr
um
ents
C
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TU
SA
EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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Tek
Instr
um
ents
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TU
SA
It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
44
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
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C
TU
SA
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A
Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 40: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/40.jpg)
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(Select cable from group ldquoCrdquo see index)
(A) Ch A out(B) Not used(C) Ch B out(D) Direct out(E) + Supply power(F) DC Common
Red + Supply powerBlk DC CommonWht Ch A OutOrg Ch B OutGrn Direct Out
Dimensions in inches and (mm)
Bi-Directional Hex Body with 6 Pin Connector
Bi-Directional Hex Body with Cable
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim Cable Length Output
BH1512-013 625-18UNF-2A 1500 (381) 3375 (857) 10 ft (305m) TTL CompatibleBH1522-013 Supply TrackingBH1512-014 2750 (699) 4625 (1175) TTL CompatibleBH1522-014 Supply TrackingBH1612-013 750-20UNEF-2A 1500 (381) 3375 (857) TTL CompatibleBH1622-013 Supply TrackingBH1612-014 2750 (699) 4625 (1175) TTL CompatibleBH1622-014 Supply Tracking
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-001 625-18UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-001 Supply TrackingBH1512-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-002 Supply TrackingBH1612-001 750-20UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-001 Supply TrackingBH1612-002 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-002 Supply Tracking
Net Weight 9 oz max
Net Weight 16 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
44
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
C
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C
TU
SA
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
50
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 41: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/41.jpg)
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Bi-Directional Fully Threaded with Cable
Bi-Directional Round Body with Connector
Part Num Thread ldquoArdquo Dim ldquoBrdquo Dim ldquoCrdquo Dim (max) Output
BH1512-005 625-18 UNF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1522-005 Supply TrackingBH1512-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1522-006 Supply Tracking
BH1612-005 750-20 UNEF-2A 1500 (381) 3375 (857) 3875 (984) TTL CompatibleBH1622-005 Supply TrackingBH1612-006 2750 (699) 4625 (1175) 5125 (1302) TTL CompatibleBH1622-006 Supply Tracking
Part Num Thread ldquoArdquo Dim Cable Length Output
BH1512-009 625-18 UNF-2A 4000 (1016) 10 ft (305m) TTL CompatibleBH1522-009 Supply TrackingBH1512-010 6000 (1524) TTL CompatibleBH1522-010 Supply TrackingBH1612-009 750-20 UNEF-2A 4000 (1016) TTL CompatibleBH1622-009 Supply TrackingBH1612-010 6000 (1524) TTL CompatibleBH1622-010 Supply Tracking
Dimensions in inches and (mm)
Net Weight 6 oz max
Net Weight 11 oz max
BH SERIESBi-Directional Dual Channel Magnetic Hall Effect Speed Sensors -58 and 34 Threads
41
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
44
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
50
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 42: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/42.jpg)
Digital Signal Distance Amplifier
(DSDA)
The newest member of the AI-Tek family
The new AI-TEK DSDArsquos are designed for
use with active sensors and serve to reduce
line impedance allowing cable runs of up to
3000ft In some cases this represents a 10X
improvement over installations not currently
using a DSDA
Line impedance plays a major role in the distance an active sensor signal can be transmitted
through cable and wire Mutual capacitance of 25 Pico-faradsfoot or more can exist between
conductors When sufficient resistance from the sensor cabling and output load is placed in
series with that capacitance signal rise times can increase to the point where the sensor can
no longer switch This condition becomes even worse due to higher target speeds that cause
output signal frequency rises
Two versions were developed to allow use with either TTL or supply tracking output options
The DSDA will work with any AI-TEK active sensor and many other brands that support these
output styles
Construction is rugged Each DSDA is potted into a cast aluminum box Cables enter the box
through weather-tight strain relief bushings and allow all cable connections including shield
to be terminated inside the box
42
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Tek
Instr
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EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
AI-
Tek
Instr
um
ents
C
heshireC
TU
SA
It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
44
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Tek
Instr
um
ents
C
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TU
SA
Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
C
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C
TU
SA
45
AI-
Tek
Ins
trum
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CT
US
A
Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
46
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Tek
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Steel Split Gear
Solid Steel Gear
47
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Tek
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
50
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 43: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/43.jpg)
EA79880-100 TTL EA79880-200 SUPPLY TRACKING
INPUT POWER 8 ndash 24 VDC 45 ndash 18 VDC
SIGNAL INPUT 24 ndash 18 VDC 35 ndash 18 VDC
OUTPUT SIGNAL Logic 1
Logic 0
35 ndash 55 VDC
06 VDC max
45 ndash 18 VDC
0 6 VDC max
OUTPUT CURRENT 100mA max 100mA max
LOAD IMPEDANCE 240 min 240 min
OUTPUT CABLE LENGTH Up to 3000ft (914 m) Up to 3000ft (914 m)
specifications load specifications and signal frequency Keep capacitance resistance and inductance as low as possible to maximize cable run
For TTL applications using 5V input power use EA79880-200
Maximum cable length dependent on wiring practices cable or wire type and
43
AI-
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Instr
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It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
C
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C
TU
SA
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
46
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Tek
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Steel Split Gear
Solid Steel Gear
47
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Tek
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
AI-
Tek
Ins
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
AI-
Tek
Ins
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 44: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/44.jpg)
It is the customers responsibility to determine whetherthe product is proper for customers use and application
S
R
S
S
R
S
S
R
S
R
Net Weight 5 oz max
S
Group A-I Tek PN Mil Connect No Max Temp Cable Wiring
A CN79860 -3100 MS3106A10SL-4S 125degC Connector Only
-3800 MS3108B10SL-4S 125degC Connector Only
-3000 Connector Only
CA79860 MS3106A10SL-4S
MS3108B10SL-4S
B CN79860 -2600 MS3106A10SL-3S 125degC Connector Only
-3900 MS3108B10SL-3S 125degC Connector Only
CA79860 MS3106A10SL-3S 125degC 3 20 RedWhite amp Black
MS3108B10SL-3S 125degC 3 20 RedWhite amp Black
C CN79860 -4200 MIL-C-26482 125degC Connector Only
125degC 522 Red Orange Black
White Green
S = Straight ConnectorR = Right Angle Connector
MS3456L10SL-4S
MS3456L10SL-4S
CA79860-30-010
Standard cable assemblies include 10ft of shielded cable Special length cables may be available for 50 pcs or more
-01-010
-17-010
-06-010
-18-010
-24-010
PT06W-10-6SBayonet Style
105degC 2 22 Black amp White
175degC
105degC 2 22 Black amp White
175degC 2 20 Black amp White
Connectors and Cable
Assemblies
AI-Tek stocks a selection of connectors
and cable assemblies for your convenience
For ease of selection the connectors and
assemblies are divided into groups Group ldquoArdquo
is designed for 2-wire items Group ldquoBrdquo
for 3-wire and Group ldquoCrdquo for 5-wire
Complete cable assemblies include the
connector and 10 of recommended wiring
for use with AI-Tek equipment All wiring is
insulated and wrapped with braided or copper
shield and jacketed in long-lasting PVC Teflon
or polyolefin insulation Alternate cable length
is 50 use -050 for final suffix
K sSS
44
AI-
Tek
Instr
um
ents
C
heshireC
TU
SA
Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
AI-T
ek
Instru
ments
C
heshire
C
TU
SA
45
AI-
Tek
Ins
trum
ents
C
hesh
ire
CT
US
A
Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
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Group A
PIN A = Black
PIN B = White
Group B
PIN A = Red
PIN B = White
PIN C = Black
Group C
PIN A = White
PIN B = Not Used
PIN C = Orange
PIN D = Green
PIN E = Red
PIN F = Black
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 46: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/46.jpg)
AI-
Tek
Ins
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Split GearsWhen using an AI-Tek speed sensor in RPM mea-surement split gears provide a convenient and simplemeans of installation where shaft disassembly is notfeasible The two halves of the gear are fastened withclamping screws thus assuring close fit All splitgears are 12 diametral pitch 145deg pressure angle
Solid GearAI-Tek also offers a 20 diametral pitch 145deg pressureangle solid steel gear This gear can be rebored to fitshaft diameters up to 1375 It is secured to the shaftwith 2 set screws
Note Gears are supplied with minimumbores as shown Alternate bores withinthe minimum and maximum limits areavailable at additional costCaution Gears may shatter if notinstalled to specifications or if operatedabove maximum RPM
Dimensions of Steel Split Gears
Part No Pitch OD No of Tooth Overall Std Bore Max Bore Approx MaxDia In Inches Teeth Face In Length In Dia In Dia In Wt Lbs RPM
G79870-202-1800 4000 4166 48 312 1000 0500 2125 30 8400G79870-202-1901 5000 5166 60 312 1000 1000 3125 50 5900G79870-202-2001 6000 6166 72 312 1000 1000 4000 70 5900G79870-202-2101 8000 8166 96 312 1125 1000 5750 150 4500G79870-202-2201 10000 10166 120 312 1250 1000 7500 260 3000G79870-202-4233 15000 15166 180 375 1375 7500 12000 480 2400
Dimensions of Solid Steel Gear
G79870-202-0967 3000 3100 60 375 0875 0375 1375 12 6000
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
50
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 47: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/47.jpg)
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Steel Split Gear
Solid Steel Gear
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
50
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 48: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/48.jpg)
AI-
Tek
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Mechanical SpecificationsLubrication Bearings are permanently lubricated do
not use pressure washes or solventsFinish Reference rod and outer ring are anodized aluminumReference Rod 14 diameter 6 longBearing Limits 4000 RPM max speedWeight 54 oz (153 kg) maxSensor Mounting 58-18 UNF-2A threaded hole std
Electrical SpecificationsOutput Frequency 30 pulsesrev (1 Hz = 2RPM)
Standard 60 pulsesrev (1 Hz - 1RPM)Optional
Output Voltage Depends on magnetic sensor usedOne turn of sensor controls 0056 inches of air
setting range from 0005 to 0020 inchesAmbient Temperature -30degC to +50degC
NOTE Not for use in abrasive atmospheres
Tachometer Transducers
when used with speed sensors They are designedprimarily to provide an easy means of attaching a pulsegenerating assembly to rotating shafts Sensor gap-ping shaft run-out and mounting problems are elimi-nated This makes the unit especially useful for shaftswith high run-out The ordering map on the followingpage provides information for selecting a unit for yourparticular application Please note that sensors andcable assemblies must be ordered separately
Taper-Lockreg Type
enables quick attachment to rotating shafts Thetransducer employs a rotor with small perforationsalong its periphery a permanently lubricated sealedbearing an outer ring and a reference rod whichwhen clamped in position prevents the outer ringassembly from moving The outer ring canaccomodate up to three speed sensors for use inmonitoring directions of rotation and speed
Sleeve Type
identical to the Taper-Lock type except that it providesa sleeve bushing with two set screws for installationpurposes allowing larger shaft sizes
It is the customers responsibility to determinewhether the product is proper for customers use andapplication
The assembly consists of a Taper-Lock bushing which
gap based on 58-18 UNF-2A thread Normal gap
AI-Tek tachometer transducers are self-generating units
The AI-Tek sleeve-type transducer assembly is
48
AI-
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Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
AI-
Tek
Ins
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
50
AI-
Tek
Ins
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 49: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/49.jpg)
AI-
Tek
Ins
trum
ents
C
hesh
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CT
US
A
Ordering ProcedureExample Speed indicating system for a variablespeed motor 0 - 1750 RPM 1 shaft diameter panel-mount display within 10 ft min motor speed is 175RPM1 Select Model No T79850 - 103 - 1215
30 PPR std basic modelTaper-lock sealed bearing 1 bore dia
Ease of Installation
Ordering Map
Basic Model1 Tachometer Transducer to accommodate one
sensor 30 pulsesrev (standard)2 Tachometer Transducer to accommodate two
sensors 30 pulsesrev4 Tachometer Transducer to accommodate one
sensor 60 pulsesrev5 Tachometer Transducer to accommodate two
sensors 60 pulsesrev
Bore Size11 - Bore Diameter 1212 - Bore Diameter 5813 - Bore Diameter 3414 - Bore Diameter 7815 - Bore Diameter 116 - Bore Diameter 1 1817 - Bore Diameter 1 14
or
18 - Bore Diameter 1 3819 - Bore Diameter 1 1220 - Bore Diameter 1 5821 - Bore Diameter 1 3422 - Bore Diameter 1 7823 - Bore Diameter 2
BearingBushing Type
2 Taper-Lock bushing amp sealed bearing
or
4 Sleeve bushing amp sealed bearing
NotesStandard mounting thread is 58-18 UNF-2A
2 Select a speed sensor such as PN 70085-1010-0013 Select a cable assembly PN CA79860-01-00 to
complement (2)4 Select tachometer to meet application needs
T79850-103-
Dimensions in inches and (mm)
49
AI-
Tek
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
50
AI-
Tek
Ins
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ents
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A
Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 50: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/50.jpg)
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Sensor Mounting BracketsSeveral types of brackets are available to facilitate
the mounting of AI-Tek speed sensors Threadedbrackets for 38-24 58-18 and 34-20 threads aregenerally used with passive sensors with one locknutActive zero- velocity sensors and passive chisel-pointsensors that require specific alignment should be usedwith unthreaded brackets and two locknuts
Bracket material is non-magnetic 303 stainlesssteel locknuts are also non-magnetic stainless steel orplated brass
Sensors and brackets should be attached to aframe free of excessive vibration to prevent spuriousindications when the gear is stopped or turning at veryslow speeds Refer to sensor specifications for properair gap and alignment with gear (target) rotation
Caution Too small an air gap especially with excessive run-out may cause the gear tostrike the sensor and make it inoperative
Threaded BracketsThread Size Bracket One Turn
Part No Advances
38-24 UNF-2B 646-310-0006 04258-18 UNF-2B 646-310-0007 056
34-20 UNEF-2B 646-310-0008 050
Unthreaded BracketsThread Size Hole Diameter BracketOf Sensor Part No
38-24 UNF-2A 390 646-140-000958-18 UNF-2A 640 646-140-0010
34-20 UNEF-2A 765 646-140-0015
Dimensions in inches and (mm)
Net Weight 4 oz max Net Weight 2 oz max
50
AI-
Tek
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Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 51: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/51.jpg)
AI-
Tek
Ins
trum
ents
C
hesh
ire
CT
US
A
Principles of Operation
The internal construction of the typical
Al-Tek variable reluctance sensor is a magnet
pole piece and coil (See figure 1) A magnetic
field (lines of flux) extends from the magnet
through the pole piece and coil out into the air
space at the end of the sensor The return path of
the magnetic field is from the air space to the
other end of the magnet As a ferrous object ap-
proaches the tip of the pole piece the magnetic
field increases and then decreases as the object
moves away from the pole piece The snap or the
rapid change in the magnetic field induces an AC
voltage signal in the coil With an ideal target and
matching sensor the induced voltage is in the shape of a sine wave
As can be seen the generated frequency signal is directly proportional to the number of ferrous
objects passing the pole piece per unit time The amplitude of the voltage output is proportional to
the speed of the ferrous objects passing the pole piece
Many applications of Al-Tek magnetic sensors use gears as targets Typical sensor output wave
forms with various targets are illustrated in Figure 3 Testing sensors with gears rather than other
ferrous discontinuities such as sprockets keyways boltheads etc is because the output is
predictable and repeatable See Figure 2 for commonly used gear terminology
Diametral Pitch = No of Teeth + 2
Outside Dia of Gear (in)
The performance of a sensor can be easily
defined when using a gear for a target it also
allows for estimated performance with alternate
targets Al-Tek sensors are tested with AGMA
standard gears the performance curves are
included in this catalog
Al-Tek Instruments differs from most sensor
manufacturers in the presentation of performance
curves and test parameters Most existing data is
specified at a surface speed of 1000 insec and
0005 in air gap we feel that a 0030 in air gap
and 500 in sec surface speed (1800 RPM motor
with 5 to 6 in dia gear) are more realistic
parameters to specify performance
Figure 1 - Internal configuration of typical sensors
Figure 3 - Generated voltage waveforms
Figure 2 - Common terms used in defining gears
51
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 52: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/52.jpg)
Part Number Page
Passive Sensors70084-1713-111 11
70085-1010-001 870085-1010-002 870085-1010-003 870085-1010-004 970085-1010-005 1870085-1010-007 1370085-1010-018 870085-1010-024 1670085-1010-026 870085-1010-028 970085-1010-037 1770085-1010-041 14 70085-1010-056 1370085-1010-078 1070085-1010-081 1870085-1010-086 1370085-1010-118 870085-1010-120 1570085-1010-131 1070085-1010-137 1070085-1010-174 1470085-1010-175 870085-1010-182 1770085-1010-214 1070085-1010-220 1170085-1010-227 1670085-1010-289 1770085-1010-299 1770085-1010-314 1570085-1010-327 1870085-1010-328 1870085-1010-329 1870085-1010-330 1870085-1010-355 1370085-1010-403 1970085-1010-404 1970085-1010-405 1970085-1010-406 1970085-1010-408 870085-1010-411 1870085-1010-412 1870085-1010-413 1870085-1010-414 1870085-1010-415 1970085-1010-416 1970085-1010-417 1970085-1010-420 1970085-1010-421 1270085-1010-424 1270085-1010-425 1270085-1010-428 1470085-1010-458 1470085-1010-469 970085-1010-472 16
70085-1010-540 1970085-1010-541 1970085-1010-542 1970085-1010-543 1970085-1010-544 19
Part Number Page
IEC EX70085-3030-111 2070085-3030-112 2070085-3030-113 2070085-3030-114 2070085-3030-211 2070085-3030-212 2070085-3030-213 2070085-3030-214 2070085-3030-222 2070085-3030-235 2070085-3030-237 20
70085-8080-001 1570085-8080-003 1170085-8080-004 15Side Look Sensor
Single Channel Hall Effect SensorsRH Series 23-31DH Series 32-36
Bi-Directional Hall Effect SensorsBH Series 37-41Digital Signal Distance Amplifier 42
Connectors and Cable AssembliesCA79860-01-XXX 44
GearsG79870-202-XXXX 46
TransducersT79850-103-XXXX 48
Brackets646-XXX-XXXX 50
PART NUMBER INDEX
52
21
Printed in USA1300-O 712
![Page 53: Table of Contentsdavidsonsales.com/docs_pdf/Sensor_Catalog.pdf · 2020. 3. 6. · Control and protection circuits have relied on variable reluctance technology for years. With few](https://reader034.fdocuments.in/reader034/viewer/2022051805/5ff91a97621b0029550cc523/html5/thumbnails/53.jpg)
Printed in USA1300-O 712