Wenglor CP35MHT80 Laser Distance Sensor High Precision

These sensors work with a high-resolution CMOS line and DSP technology and determine distance using angular measurement.

These sensors work with a high-resolution CMOS line and DSP technology and determine distance using angular measurement. As a result, material, color and brightness related measurement differences are virtually eliminated. Integrated analogue output can be configured for voltage 0…10 V (10…0 V) or current 4…20 mA (20…4 mA).


  • Response time: < 1250 µs (speed-mode)
  • High resolution: 50 µm (resolution-mode)
  • Linearity: 0,15 % (resolution-mode)
  • Zoom function
  • Measured value independent of material, color and brightness


In the food industry, it is important to accurately measure blocks of cheese on conveyors before cutting. This enables the amount of waste to be significantly reduced when the blocks are subsequently cut. To this end, two high-precision laser distance sensors are installed above and one on each side. The analog measurements can be used to calculate the volume of the cheese and thus determine the ideal frequency of the cutting knife. To avoid keeping the measuring sensors permanently in operation, a retro-reflex sensor is installed upstream as a trigger – this saves electricity and therefore costs.

High-Precision Laser Distance Sensors

High-precision laser distance sensors work according to the principle of angle measurement, whereby color, shape and object surface do not influence the measurement. Depending on the setting, they can be operated at very high speed or resolution. The measuring range can be selected individually within the sensor’s working range.


Optical Data

Working Range 50 … 350 mm
Measuring Range 300 mm
Resolution 50 µm
Resolution (Speed-Mode) 80 µm
Linearity 0.15 %
Linearity (Speed-Mode) 0.2 %
Linearity Deviation 450 µm
Light Source Laser (red)
Wavelength 660 nm
Service Life (T = +25 °C) 100,000 h
Laser Class (EN 60825-1) 2
Max. Ambient Light 10,000 Lux
Light Spot Diameter see Table 1

Electrical Data

Supply Voltage 18 … 30 V DC
Current Consumption (Ub = 24 V) < 80 mA
Measuring Rate 800 /s
Measuring Rate (Resolution-Mode) 400 /s
Response Time 1,250 µs
Response Time (Resolution Mode) < 2,500 µs
Temperature Drift < 25 µm/K
Temperature Range -25 … 50 °C
Analog Output 0…10 V
Load Current Voltage Output < 1 mA
Current Output Load Resistance < 500 Ohm
Interface RS-232
Baud Rate 38,400 Bd
Protection Class III
FDA Accession Number 0820590-000

Mechanical Data

Setting Method Teach-In
Housing Material Plastic
Degree of Protection IP67
Connection M12 × 1; 8-pin

Safety-relevant Data

MTTFd (EN ISO 13849-1) 713.97 a


Error Output yes
Analog Output yes
RS-232 Interface yes

Adjustable parameters

Analog output 0…10 V
4…20 mA
Other parameters Scale analog output
Exposure time
Speed mode
Resolution mode
Laser light


Datasheet : CP08MHT80 OCP801H0180 CP24MHT80 OCP162H0180 CP35MHT80 OCP352H0180

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