FEATURES

UNAM30I6103

Sensing range: 100 to 700 mm

Resolution: 0.3 mm

UNAM50I6121/S14

Sensing range: 400 to 2,500 mm

Resolution: 0.6 mm

Distance measurement with the top resolution level in the industry. Direct measurement output of 0–10 Vdc or 4–20 mA.

Long sensing range with high resolution

Because of the ultrasonic sensing method, there is no need to change settings for a new target object color.

Long sensing distances with high accuracy will continue.

No adjustments needed if the color of the target object changes.

Transparent glass substrate Black glass substrate

Long-Distance Ultrasonic Displacement Sensors

Unaffected by the color or material of the target object, ultrasonic sensors achieve long sensing distances using direct reflection.

High sensing accuracyResolution: 0.3 to 0.6 mm.

Long sensing distance UNAM50I 6121/S14Sensing range: 400 to 2,500 mm

UN Series

1

Preleadedconnector type

PA5 Series connector with cable

Female

Sensors side(male)

Male

Sensingmethod Appearance Features Sensing distance Catalog listing

• Built-in compact amplifier• Response time: 60 ms max.• Resolution: 0.3 mm max.• Output: 0 to 10 Vdc

• Built-in compact amplifier• Response time: 100 ms max.• Resolution: 0.3 mm max.• Output: 0 to 10 Vdc

• Response time: 80 ms max.• Resolution: 0.3 mm max.• Output: 4 to 20 mA

• Long sensing distance• Resolution: 0.6 mm max.• Output: 4 to 20 mA

60 to 400 UNDK30U6112

UNDK30U6103

UNAM30I6103

UNAM50I6121/S14

100 to 1000

100 to 700

400 to 2,500

Note: Use the UNAM50I 6121/S14 in combination with a PA5 series cable with connector (sold separately.)

Ref

lect

ive

anal

og

ou

tpu

tAPPLICATIONS

CATALOG LISTINGS

Glass substrate mapping Liquid level measurement Tire position detection

CONNECTOR WITH CABLEBe sure to use a PA5 Series connector with cable when connecting a preleaded connector or connector-type sensor.

Shape Cord length Lead colors

DC

2 m

5 m

2 m

5 m

PA5-4I SX2SK

PA5-4I SX5SK

PA5-4I LX2SK

PA5-4I LX5SK

Cord propertiesPower supply Catalog listing

1: brown, 2: white, 3: blue, 4: black

1: brown, 2: white, 3: blue, 4: black

1: brown, 2: white, 3: blue, 4: black

1: brown, 2: white, 3: blue, 4: black

Vinyl-insulated cordwith high resistanceto oil and vibration(UL/NFPA79 CM, CL3)

PA5 Series connector with cable

Sensors side PA5 connector side

Tightening the connectorAlign the grooves and rotate the fastening nut on the PA5 connector

by hand until it fits tightly with the connector on the sensors side.

Connector side(female)

1 2

Blind range (St)Range near the sensor in which the target cannot be detected reliably. In this range, however, there is a chance of detection due to multiple reflection of ultrasonic waves between the sensor and target.

Scanning range far limit (Sde)The far limit of the sensing range.

Sensing range (Sd)The area between the blind range far limit and the scanning range far limit.

Far limit settingA range upper limit setting that can be programmed with Teach-In.

Near limit settingA range lower limit setting that can be programmed that can be with Teach-In.

Minimum setting intervalThe minimum interval between the two settings.

Beam angle

Target

Sensing range (Sd)

Catalog listingScanning range far limitBlind rangeBeam angle (one side)

Sonic frequencyTuningSetting upper limitSetting lower limitMinimum setting intervalPowerCurrent consumptionOutputResponse timeRepeatabilityResolutionTemperature driftOperating temperatureOperating humidityIndicator modesHousingProtective structureConnection types

UNDK30U6112 UNDK30U6103 UNAM30I 6103 UNAM50I 6121/S1460 to 400 mm

0 to 60 mm

8˚

400 kHz

60 to 400 mm

60 to 400 mm

—

60 ms max.

0 to 100 mm

15 to 30 Vdc

Teach-In

2% So max.

0 to +60 ˚C

90 % RH max.

* Refer to “Indicator modes” under NOTES FOR USE.

IP67

100 to 1,000 mm

8˚

240 kHz

100 to 1,000 mm

100 to 1,000 mm

—

80 ms max.

0.5 mm max.

0.3 mm max.

2 m preleaded

35 mA max.

0 to 10 Vdc / 10 to 0 Vdc

Polyester Ni-plated brass

150 to 700 mm

100 to 650 mm

50 mm

55 mA max.

4 to 20 mA / 20 to 4 mA

80 ms max.

100 to 1,000 mm 400 to 2,500 mm

0 to 400 mm

8˚

120 kHz

500 to 2,500 mm

400 to 2,400 mm

100 mm

50 mA max.

4 to 20 mA / 20 to 4 mA

160 ms max.

1 mm max.

0.6 mm max.

Connector

10˚

230 kHz

Blind range (St)

Sensing distance (So)

Scanning range far limit (Sde)

GLOSSARY

SPECIFICATIONS

3

EXTERNAL DIMENSIONS

WIRING DIAGRAM

UNDK30U61�� UNAM30I6103

(Unit: mm)

UNAM50I6121/S14

Teach-in button

Maincircuit

Load

Analog outputBlack (4)

Brown (1) + Vs

0 VBlue (3)

LED

Teach-In buttonLED

3 4

Sonic level

Analog output

Target position

Good

Measurement output

Within set range

Small margin

Orange LED lit Orange LED blinking

Insufficient

Orange LED out

–

Red LED lit

Indefinite 4–20 mA or 0–10 Vdc

*Between blind range upper

limit and range near limit setting

1. Indicator modes

* The orange LED could be out for any of the following reasons:• There is no target.• The target is out of range.• The target is within the blind range.• The ultrasonic reflection from the target is too weak.

2. Operating the Teach-In button

Set the scanning range as follows.

• Press the button for 2 to 6 seconds unti l the indicator bl inks

alternately orange and red.

• Release the button and the indicator will begin to blink red.

• Place the target at the 0 Vdc or 4 mA output position and press the

button. The indicator begins to blink orange.

• Place the target at the 10 Vdc or 20 mA output position and press

the button to complete setup. The interval between the two set

points is linearly interpolated.

2.1 Setting a scanning range

Use the Teach-In button for setup. Setup should be completed within five minutes after power-up. The settings are fixed after five minutes to

prevent them from being accidentally changed during regular operation. Even after the power is turned off, the settings are saved.

SENSING AREA (typical)

NOTES FOR USE

(Standard target: 30 x 30 mm2)Sensor with 400 mm scanning range (Sde)

(Standard target: 100 x 100 mm2)Sensor with 2,500 mm scanning range (Sde)

(Standard target: 30 x 30 mm2)Sensor with 1,000 mm scanning range (Sde)

There are two ways of setting the scanning range,

depending on the target position.

• When setting 0 Vdc or 4 mA output, place the target near the sensor

4 mA0V

Sensing distance

Out

put

20 mA10V

-100

-80

-60

-40

0

20

40

60

80

100(mm)

-200

-160

-120

-80

-40

0

40

80

120

160

200(mm)

-400

-300

-200

0

100

200

300

400(mm)

-100

-20

0 50 100 150 200 250 300 350 400 450 0 100 200 300 400 500 600 700 800 900 1000 1100

2000 400 600 800 1000 1200 1400 1600 1800 2000 2200 2400 2600

Set distance (mm) Set distance (mm)

Set distance (mm)

5

Do not allow water to enter.

• The output will be unreliable if the target is outside of the

measurement range setting.

• When two or more sensors are used in close proximity, mutual

interference may cause the sensors to malfunction. Maintain at

least the distances indicated in the figures below.

• Parallel sensors facing each other (keep the same distances if the

sensors face in the same direction)

• Sensors mounted back to back

• Be sure to turn off the power before mounting the sensor.

• Do not pull excessively on the sensor cable.

• Do not use the sensor in a place exposed to water or oil, outdoors,

or in an atmosphere with chemicals (organic solvents, acids, and

alkalies).

• To prevent malfunction and device failure, always use the sensor

within the rated temperature.

• An airflow of more than 10 m/s within the sensing area may alter

the sensing area boundaries.

• Avoid local differences in temperature and strong convection

phenomena, because abrupt changes in airflow in the sensing

area may cause the sensor to malfunction.

• A jet of air from an air nozzle may cause the sensor to malfunction.

Do not use near an air nozzle or the like.

• Due to fundamental principles, the output may be unreliable in an

environment where the pressure fluctuates. Check the output

under the actual operating conditions before using the sensor.

Because the sensor does not have a pressure-resistant structure,

it should be used at atmospheric pressure.

• Water drops or dust on the sensing face may make the output

signals unstable.

• Since the end of the cable is outside of the protective structure,

take care to prevent water from entering from the end.

• Sound-absorbing materials, such as cotton and fine powder,

cannot be detected.

• If there is an ultrasonic cleaner or other ultrasonic equipment in the

area, separate it sufficiently from the sensor and verify that it does

not cause ultrasonic interference.

• The sensor may not detect a target whose surface is convex,

concave, or tilted toward the sensor.

Distance greater than 2 times the largest range limit setting

Sensor

Sensor

Sensor

Sensor

Distance greater than 4 times the largest range limit setting

0.1 m <

0.1 m <

• Route the cable separately from power lines or though a separate

conduit. Otherwise, induction may cause incorrect operation or

damage.

• If a switching regulator is used for the power supply, connect the

frame ground and ground terminal to ground. If the sensor is used

without grounding, faulty operation may occur due to switching

noise.

• Although the sensor has a miswiring protection circuit, incorrect

wiring involving the input/output terminals may cause damage.

• Diffuse reflection from surrounding objects because of ultrasonic

diffusion or sidelobes may cause incorrect detection. If measurement

is incorrect, consider the following countermeasures: keep the

sensor away from the surrounding objects, use sound-absorbing

materials like sponge, or install sound-insulating barriers.

• When setting 0 Vdc or 4 mA output, place the target far from the sensor.

4 mA0V

Sensing distance

Out

put

20 mA10V

Target

Sound-insulating barriers

Sensor

3. Handling precautions

4. Influence by diffuse reflection from surrounding objects

5. Wiring precautions

It is possible to revert the settings to the factory defaults by either of

the following methods:

1.

• Press the button for more than 6 seconds until the indicator rapidly

blinks alternately orange and red.

• Release the button, and the indicator will light orange and red at

the same time for 2 seconds. The sensor has been reset to the

factory defaults.

2.

• Set a scanning range without a target. The indicator will rapidly

blink alternately orange and red for 2 seconds. The sensor has

been reset to the factory defaults.

2.2 Factory defaults

Before use, thoroughly read the “Precautions for use” and “Precautions for handling” in the Technical Guide on pages B-021 to B-024 as well as the instruction manual and product specification for this sensor.

5 6