Product

Product OPERATION MANUAL Model-LTRON-BTMicroprocessor-based Flow Totaliser

1. FEATURES

NEW from cost effective LTRON SERIES FAMILY

Microprocessor based

Site Programmable-Program it, Fit it, Forget it!

Compact Size- 96 x 96 x 100 mm

Main inputs (linear/sqrt 0/4-20mA,0/1-5VDC,0-10VDC)

Up to 4 on-off relay outputs with C/O contacts

4-key tuctile key board for programming

24 VDC output to Power Transmitters

Isolated RS-485 serial port Option

Isolated 4-20 mA Re- Transmission output option 1. INTRODUCTIONLTRON-BT FLOW TOTALISER are part of Lectroteks LTRON-series MICROPROCESSOR-based Process Measurement and Control products. The instruments are innovative in terms of compact size (1/4 DIN & 1/8 DIN versions) and cost-effective, yet full-featured in terms of ease of use, programmability, optional communication port and re-transmission signal output. It has full keyboard based operation for programming inputs, ranges, decimal point, linear or square root input selection and calibration.

The LTRON-BT accepts 0/4-20 mA (linear/square-root), 0/1-5VDC, 0-10VDC inputs and is useful for all general purpose measurement.The instruments compact and highly functional fascia consists of a 16 digit, 7-segment LED display and 4-key tuctile keyboard for programming/parameter selection purposes. RS-232 or Rs-485 ports are optional for communication with DAS/SCADA systems. An isolated 4-20 mA re-transmission signal is also optional, and can be used for recording purposes or remote signal transmission to DAS/PLC/DCS systems.

The enclosure is a 96x96x100 mm (WHD) sized engineering plastic enclosure suitable for mounting in panel cutout of 92 x 92 mm DIN size, via 2 clamps. The instrument has an IP-40 front facia and IP40 rear.2. UNPACKING & INSTALLATION

Unpack the instrument and check for presence of this Operation Manual, pair of clamps and physical damage if any. Report to the dealer for any shortages or warranty service/replacement.

Install the instrument on the panel in a cutout as per the instrument size purchased, with the help of mounting clamps supplied. Connect power supply as ordered and marked on the instruments label.

Wire the instrument preferably through an external fuse and a 0.5A MCB for additional protections against shorts/over current protection. The instrument display comes on when power on is done. In case of no display condition, check power supply cord or connection point, or instruments internal fuse (if blown, replace). Use EARTH TAG for proper earthing. In case of further difficulty, please contact dealer.3. SPECIFICATIONSInputs/Ranges (site configurable)INPUT

RANGES (Configurable)0/4-20 mA DC (linear/square root)

0 to 9999 oC

0-10 Vdc / 0-5Vdc (optional)

0 to 9999 oC

1-5 Vdc (optional)

0 to 9999 oC

Accuracy

+/- 0.1%FS +/- 1 digit

Display

16 digits, 7-segment LED, Red, in 7.55 mm height

Keyboard

4-key tuctile keyboard

Calibration

From front keyboard, software based

Power Supply

100 270V AC, 50 +/- 3 Hz

Control/Alarm function

Dual alarms programmable on flow, configurable as HIGH/LOW

Batch Function (optional)

Two relays may be configured for anticipatory and final reset on total flow.

Relays

P-NO-NC relay contacts, rated 7A, 240 V, resistive loads (all potential free), to be externally fused with appropriate fuse ratings

Communication ports

RS-485 port

Retransmission Signal (optional)

Isolated & linear 0/4-20 mA proportional to inputPassword Facility (optional)

For BATCH START and in BATCHMODE entry

Digital Inputs

Two Digital inputs to START & STOP the BATCH

Wiring Screwed Terminals

Maximum 2.5 mm wire size

Enclosure

ABS, 96x96x100 mm with 2 mounting clamps

Panel Cutout

92x92 mm or 92x48 mm

Ambient Temperature

0 to 50 o C

Relative Humidity

90% RH max. non-condensing

4. PROGRAMMING

All alarm limits are configured in High mode (relay energizes when process value exceeds setpoint) unless specified in order, in which case it will be shipped with configuration as per order.

The instruments can be operated in divided in 5 modes:

Operation Mode - This mode operates the LTRON-BT

Limit Mode - Program flow value alarm/setpoints value

Batch Mode - Program batching alarm/setpoints values

Configuration Mode- Use this mode to re-configure the instruments input ranges, dp, input type.

Calibration Mode - Use this mode to calibrate the instruments inputs/outputOperation Mode

KEYBOARD

DISPLAY SHOWS

Normal Display

LTRON-BT normally displays the process value on its upper 4-digit display and Totalized flow on its lower 8-digit display. In case sensor/input is open or not connected, upper display shows 25% of the range at the ve side.Keyboard con-sists of 4 keys

S (Scroll Forward)

( (Decrease)

( (Increase)

M (Scroll Backward)100.0 Process Value

00000045 Total/Batch FlowLimit Mode

KEYBOARD

DISPLAY SHOWS

Changing the setpoint of Flow Value

Alarm/setpoint values can be changed in this mode.

Enter this mode by pressing S + ( keys together.Press S key to select Alm1, gAP1, ALm2, gAP2, tFLO.Change alarm values or hysterisis (gap) by using ( , ( keysExit this mode by pressing S+( keys together, again.

Note: To reset tFLO value (00000000) press ( + M keys together.Changing hysterisis and limit type

1.Program a +ve sign GAP value to energize relay in High Mode (ON above setpoint, OFF below setpoint).

The value of the GAP decides the hysterisis.

For example, if +5.0 gAP1 is set, and Aln1 value is 800 C, relay will energize at 800 C, and reset again at 795 C.

2. Program a ve GAP value to energize relay when PV is less than SP & vice-versa.

.(Limit 1) 300.0 Aln 1

(On-off gap of Limit1) 005.0 gAP1 (Limit2) 800.0 Aln 2

(On-off gap of Limit2)

005.0 gAP2 (Total flow limit) tFLO 00000050Batching Alarm Mode

KEYBOARD

DISPLAY SHOWS

Changing the setpoint of Total Flow Value

Batch Alarm/setpoint values can be changed in this mode.

Enter this mode by just pressing S key. Enter the correct password (optional).

Press S key to select LO_ALM(LS), HI_ALM(HS), Off Time(OF).

Change alarm values by using ( , ( keys

Exit this mode by pressing S+M keys together.Changing Batch Alarm value

Program a +ve value for LO Alarm and HI Alarm with LO Alarm value always lower than Hi Alarm value.

Both the relays energize when the batch is started and deenergizes when the Batch Total value equals the respective Batch Alarm values (if & only if user configures LS, HS mode for relay operation).Note: To Reset the Batch value of either alarms and OFF time to Zero (0000) press M key.00000015 LS01 (LO_ALM)00000025 HS01 (HI_ALM) 00.03 OF01 (Off Time)e.g.: If LO ALM= 15 and HI ALM = 25, then both the relays gets energize when the batch is started LO ALM relay deenergize when the Total Flow value equals 15.

HI ALM relay deenergizes when the Total Flow value equals 25.

When HS relay becomes off, Off Time of that batch Starts.Configuration Mode

KEYBOARD

DISPLAY SHOWS

What is its function?

In this mode user can change units communication serial number, rangehi, rangelo, resolution (d.p.), i/p type.

Note 1: Decimal can be selected for 1-3 digits.Step 1 Press S + M to enter input calibration mode.

Step 2 - Press S + ( keys to enter Output calibration Mode.

Step 3 - Press S + ( keys to enter configuration Mode. Instrument shows the communication serial number first. By using ( , ( keys, change the sr.no.

Step 4 - Press S key sequentially to select RangeHi, RangeLo, D.P, I/p type (m/A or 5V).

Step 5 - Get out of the mode by pressing S+M keys again.

SrnO (Serial Number)

rngH (RangeHi)

rngL (RangeLo)

dP (decimal Point)

InPt (Input Type)

Sqrt (mA sqrt yes/no).Sqrt option is only valid for mA input.

For Sqrt I/P type use the instrument above 10% of max. I/P current.

Input Calibration Mode

KEYBOARD

DISPLAY SHOWS

What is Input Calibration mode?

In this mode user can check or recalibrate the LTRON-BT at site

To get into this mode, press

1. S + M keys first.

2. Press M key successively to select Zero, Span,

3. Get out of the mode by pressing S + M keys again.

Connect reqd. mA calibration source at the I/P terminal.

Step 1 - Press S + M key. bottom display shows Z FL and upper display shows the Process Value.

Step 2 Press ( , ( keys to adjust errors at Zero side if any by applying the input corresponding to ZERO.

Step 3 Press M, displays S FL.Step 4 Repeat Step 2 for SPAN calibration by giving full span input and adjust error by ( , ( keys.

Example given below is for an mA input configured LTRON-BT1) ZERO (Zero side I/P calibration). 000.3 Z FL (mA I/p for 0.0 Range loWith an error of 0.3) 000.0 Z FL (0.3 error corrected)

2) SPAN(Span side I/P calibration) 102.0 S FL(mA I/p. for 100.0 Rangehi with an error of 2.0) 100.0 S FL(After adjusting error)

Output Calibration Mode

KEYBOARD

DISPLAY SHOWS

What is Output Calibration ?

In this mode user can calibrate the LTRON-BTs isolated re-transmission signal output to 4-20 mA

To get into this mode press

1.) S + M keys to enter input calibration mode.

2.) S + ( keys to enter output calibration mode.

Connect a DMM at the Ltron BTs output terminals, to read the retransmission output.Step 1 - Press S + M to enter input calibration mode.Step 2 Press S + ( keys together in Calibration mode. Display shows 04nA.Step 3 Press (, ( keys to adjust mA output to 4 mA Step 4 Press M key to display the span side output (20nA). Step 5 - Confirm instrument output is 20 mA, Adjust mA error if any by ( , ( keys.(Zero side O/P calibration).

04nA OUPt

(Span side O/P calibration).

20nA OUPt

5. CONNECTION DIAGRAM

NOTES

IMPORTANT NOTE: IN ALL SECTIONS, WHEN MULTIPLE KEY FUNCTIONS ARE REQUIRED, THE FIRST KEY IS TO BE PRESSED FIRST, AND KEEEPING IT PRESSED, THE SECOND KEY HAS TO BE THEN PRESSED, TO GO INTO THE PARTICULAR MODE. E.G. when S + ( key press instruction is given, press S key first, and keeping it pressed, press the ( key with another finger to get into setpoint change mode.

LTRON-BT WIRING DIAGRAM (UNUSED OPTIONS WILL BE IN BLANK CUTOUTS)Notes1. NC-P1-NO denote Normally Closed/Phase (Pole)/Normally open conditions of the relays. These can be configured in failsafe mode (NO contacts can be programmed and made to be energized as per High or Low limit requirement see Section II Operation).2. Terminals shall be provided as per order for no. of relays and optional feature (Retransmission and Communication port)

BATCH START MODETo start the totalisation of the flow values press M + ( keys together. Enter correct password (Password Facility if specified), press S key to enter in to the batch start mode with lower display showing Str bACH and upper display displaying the starting batch 0001.Press M key to start the totalization of the flow value.

CALIBRATION PARAMETERSCalibration parameters for 0-5,1-5,0-10V DC and 0/4-20 mA/sqrt are stored independently.

QUICK CALIBRATION MODE (Quick-Cal)The LTRON-BT can be quickly calibrated for its input by adopting the following procedure. First configure the instrument for required input (e.g., mA). Enter into Input ZERO side calibration Mode (see section IV), and press S + ( together. The input automatically gets calibrated to the user configured Range Lo. Similarly repeat the same procedure for input SPAN side calibration.Fine calibration may be further required.

LECTROTEK SYSTEMS PVT. LTD.

33 Parvati Industrial Estate, Pune-411009, India

Tel. +91-20-24220313/24220383 Fax: 4223932 ,Email: sales@lectrotek.com Visit www.lectrotek.com

1.) Connect 0/4-20mA/sqrt between terminal 1 and 3 (with 1 as +ve & 3 as - ve)2.) Connect 0-5,1-5,0-10V DC between terminal 5 and 4 (with 5 as +ve & 4 as ve) (optional)3.) Earth must be provided.

DIGITAL INPUTS OPERATIONTwo digital inputs (D1 & D3) are provided to start and stop the batch. These inputs are configured so as to accept the event on falling edges and low levels. Digital input of pulse width more than 100 mSec on pin D1 will stop the batch flow.Batch will start if and only if there is event on pin D3.

CONTENTS

1) Introduction 2) Unpacking & Installation

3) Specifications 4) Programming

5) Connection Diagram

EMBED PBrush

WARRANTY

18 Months after dispatch or 12 Months after commissioning, whichever is earlier, against manufacturing defects, ex-works / dealer.

Refer to company for detailed warranty terms.

No implied warranty applicable other than company standard warranty

LECTROTEK SYSTEMS

33, PARVATI INDUSTRIAL ESTATE,

PUNE 411009 (INDIA)

VOICE: 91 20 24220383

FAX: 91 20 24223932

EMAIL: SALES@LECTROTEK.COM

URL: WWW.LECTROTEK.COM

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