OHKS934 Reflex Sensor with Background Suppression

These sensors detect distance by measuring angles. They are particularly good at recognizing objects in front of any background. The color, shape and surface characteristics of the object have practically no influence on sensor switching performance.

This product has been discontinued. Click here to access the innovative successor.

Features at a Glance

Electronic background suppression
Miniature design
Red light
Switching distance adjuster

Technical data

Optical Data
Range	200 mm
Setting Range	35 ... 200 mm
Switching Hysteresis	< 10 %
Light Source	Red Light
Service Life (T = +25 °C)	100,000 h
Max. Ambient Light	10,000 Lux

Electrical Data
Supply Voltage	10 ... 30 V DC
Current Consumption (Ub = 24 V)	< 25 mA
Switching Frequency	600 Hz
Response Time	833 µs
Temperature Drift	< 5 %
Temperature Range	-40 ... 60 °C
Number of Switching Outputs	2
Switching Output Voltage Drop	< 2.5 V
PNP Switching Output/Switching Current	100 mA
Short Circuit Protection	yes
Reverse Polarity Protection	yes
Overload Protection	yes
Protection Class	III

Mechanical Data
Setting Method	Potentiometer
Housing Material	Plastic
Full Encapsulation	yes
Degree of Protection	IP67
Connection	M12 × 1; 4-pin
Cable Length	200 mm
Weight	22 g

Output
PNP NC, PNP NO	yes

Adjustable parameters
Circuit	NC NC+NO NO
All other parameters can be found in the product documentation.

Standards and certificates

* Temperature range with permanently installed cable, bending radius: > 20 mm

Table 1
Detection Range	30 mm	115 mm	200 mm
Light Spot Diameter	4 mm	6 mm	10 mm

Connection Diagram

Switching Distance Deviation
Typical characteristic curve based on white, 90 % remission Sr = Switching Distance dSr = Switching Distance Change black 6 % remission grey 18 % remission