Wenglor OTM502C0002 Reflex Sensor Energetic

The transmitter and receiver in these sensors are located in a single housing.

The transmitter and receiver in these sensors are located in a single housing. The sensor evaluates transmitted light reflected back from the object. The output is switched as soon as an object passes the selected range. Bright objects reflect more light than dark objects, and can thus be recognized from greater distances.


  • IO-Link interface
  • Compact housing
  • Teach-in, external teach-in
  • Large detection range


Detection of Palms in Disinfectant Dispensers with Reflex Sensors

Disinfection stations for hands are provided in public areas such as shops, schools, train stations, airports, football stadiums, gyms and many more to meet hygiene standards. The automated disinfectant dispensers have one inlet for each hand. Compact reflex sensors are installed in narrow areas for contactless detection of the hands. The disinfection cycle starts as soon as the sensor has detected that both hands are present. This hygiene measure can combat the spread of germs quickly, effectively and fully automatically.

Energetic Reflex Sensors

Reflex sensors check objects for presence, check stack heights or perform counting tasks. They are used when objects need to be detected without a defined background. For this purpose, they use red light or infrared light according to the energy principle.


Optical Data

Range 500 mm
Switching Hysteresis  < 10 %
Light Source Infrared Light
Wavelength 850 nm
Service Life (T = +25 °C) 100,000 h
Max. Ambient Light 10,000 Lux
Opening Angle 12 °

Electrical Data

Supply Voltage 18 … 30 V
Current Consumption (Ub = 24 V) < 30 mA
Switching Frequency 2,500 Hz
Response Time 200 µs
On-/Off-Delay 0 … 60 s
Temperature Drift < 10 %
Temperature Range -25 … 60 °C
Switching Output Voltage Drop < 2.5 V
PNP Switching Output/Switching Current 100 mA
Residual Current Switching Output < 50 µA
Short Circuit Protection yes
Reverse Polarity Protection yes
Overload Protection yes
Lockable yes
Teach Mode NT, MT
Interface IO-Link V1.0
IO-Link Parameter 12
Protection Class III

Mechanical Data

Setting Method Teach-In
Housing Material Plastic
Full Encapsulation yes
Degree of Protection IP67
Connection M12 × 1; 4-pin


IO-Link yes
PNP NO yes

Adjustable parameters

Circuit NC


Datasheet : Wenglor OTM502C0002 Reflex Sensor Energetic

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