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Smart Sensor Laser Sensor with Built-in Amplifier


A CMOS Laser Sensor That's Optimum for Simple Measurements

Model NPN output ZX1-LD50A61
PNP output ZX1-LD50A81
Measurement range 50 ± 10 mm 100 ± 35 mm 300 ± 150 mm 600 ± 400 mm
Light source (wave length) Visible-light semiconductor laser
(wavelength: 660 nm, 1 mW max., IEC/EN Class 2, FDA Class 2 *1)
Spot diameter (typical)
(Defined at the measurement
center distance) *2
0.17 mm dia. 0.33 mm dia. 0.52 mm dia. 0.56 mm dia.
Power consumption 2,500 mW max. (105 mA max. at 24 VDC, 210 mA max. at 12 VDC)
Current consumption 250 mA max. (at power supply voltage 10 VDC)
Control output Load power supply voltage: 30 VDC max., Load current: 100 mA max.
(Residual voltage: 1 V max. (load current 10 mA or less), 2 V max. (load current of
10 to 100 mA))
Analog output Current output: 4 to 20 mA, maximum load resistance: 300 Ω
(The output is 20 mA for the nearest point in the measurement range in respect
to the Sensor and 4 mA for the farthest point.)
Functions Smart tuning, keep function, scaling setting, background removal, OFF-delay timer,
ON-delay timer, one-shot timer, ON/OFF-delay timer, zero reset, area output,
eco function, hysteresis width setting, and setting initialization
Indicators Digital display (red), output indicator (OUT1, OUT2) (orange), zero reset indicator
(orange), menu indicator (orange), laser ON indicator (green), and smart tuning
indicator (blue)
Judgment output Super-high-speed (SHS) Mode: 1 ms
High-speed (HS) Mode: 10 ms
Standard (Stnd) Mode: 100 ms
Laser OFF input 200 ms max.
Zero reset input 200 ms max.
Temperature characteristic *3 0.03% F.S./°C 0.04% F.S./°C
Linearity *4 ±0.15% F.S. ±0.25% F.S. ±0.25% F.S.
(200 to 600 mm)
±0.5% F.S.
(entire range)
Resolution *5 2 μm 7 μm 30 μm 80 μm
Ambient illumination Illumination on received light surface:
7,500 lx or less (incandescent light)
Illumination on received light surface:
5,000 lx or less (incandescent light)
Ambient temperature Operating: -10 to +55°C, Storage: -15 to +70°C (with no icing or condensation)
Ambient humidity Operating and storage: 35% to 85% (with no condensation)
Dielectric strength 1,000 VAC, 50/60 Hz, 1 minute
Vibration resistance (destruction) 10 to 55 Hz, 1.5-mm double amplitude, 2 hours each in X, Y, and Z directions
Shock resistance (destruction) 500 m/s2 3 times each in X, Y, and Z directions
Degree of protection *6 IEC 60529, IP67
Connection method *7 Pre-wired model (Standard cable length: 2 m, 5 m)
Pre-wired connector model (Standard cable length: 0.5 m)
Pre-wired models (2 m) Approx. 240 g/Approx. 180 g Approx. 270 g/Approx. 210 g
Pre-wired models (5 m) Approx. 450 g/Approx. 330 g Approx. 480 g/Approx. 360 g
Pre-wired connector
models (0.5 m)
Approx. 170 g/Approx. 110 g Approx. 200 g/Approx. 140 g
Materials Case and cover: PBT (polybutylene terephthalate), Optical window: Glass, Cable:
PVC, Mounting hole part: SUS303
Accessories Instruction sheet and Laser warning label (English)

Note: 1. False detection outside the measurement range can occur in the case of an object with high reflectance.
          2. Refer to the below for the ratings and specifications of Sensors with Class 1 lasers.
*1. Classified as Class 2 by IEC60825-1 criteria in accordance with the FDA standard previsions of Laser Notice No. 50.
       CDRH registration has been completed. (Center for Devices and Radiological Health) (Accession Number: 1210041) 
*2. Spot diameter: Defined as 1/e2 (13.5%) of the central intensity at the measurement center distance.
       False detections can occur in the case there is light leakage outside the defined region and the surroundings of the
       target object have a high reflectance in comparison to the target object.
       Accurate measurements may not be possible for workpieces that are smaller than the spot diameter.
*3. Temperature characteristic: Value for the case the space between the sensor and Omron’s standard target object is
       secured by an aluminum jig. (Measured at the measurement center distance)
*4. Linearity: Indicates the error with respect to the ideal straight line of the displacement output in the case of measuring
       Omron’s standard target object (white ceramic) at a temperature of 25 °C.
       Linearity and measured value may vary depending on target object.
*5. Resolution: Defined in Standard Mode for Omron’s standard target object (white ceramic) after executing Smart
       The resolution indicates the repetition accuracy for a still workpiece. Not an indication of the distance accuracy.
       Resolution performance may not be satisfied in a strong electromagnetic field.
*6. IP67 protection applies to the connector on pre-wired connector models if an extension cable is connected.
*7. Use a Pre-wired Connector Model together with an Extension Cable (10 m or 20 m).

Ratings and Specifications of Sensors with Class 1 lasers (ZX1-LD[]L)

The ratings and specifications that are different from those of the Sensors with Class 2 lasers are given below.

Model ZX1-LD50A61L/ZX1-LD50A81L
FDA Class Class1 0.24mW max.
IEC/EN Class Class1 0.24mW max.
Functions No scaling setting
Ambient illumination Illumination on received light surface 5,000 lx
or less (incandescent light)
Illumination on received light surface 2,500 lx
or less (incandescent light)
Connection method Pre-wired model (2 m)
Accessories Instruction sheet and Explanatory label (English), FDA certification label

Accession Number: 1210041