With retro-reflective photoelectric sensors, or reflector photoelectric sensors, the transmitter and receiver are in a single housing, just as with diffuse proximity photoelectric sensors. However, the sensor always looks at a reflector which is placed opposite the sensor. The output of the sensor becomes active as soon as an object moves inbetween the sensor and the reflector. Unlike with normal reflective sensors, polarized retro-reflective photoelectric sensors use special polarized filters so that the receiver accepts only light reflected by the reflector and not by another reflective object, such as, for example, a metallic paint of a car. Thus, it is possible to detect translucent and reflective objects as well.

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Type
Version
Series
Detection range
Housing
Output
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Material
Power supply

SPPR 2610T J

SPPR 2610T J is a polarised photoelectric retro-reflective sensor with a range of 10 meters, PNP switching output and rotatable M12-connector. Sensitivity and on/off delay are adjustable through the potentiometer. Delivered with mounting bracket, but without reflector.

SPPR 2910/1 5

The Telco Sensors SPPR 2910/1 5 packing consists of a polarised photoelectric retro-reflective sensor a mounting bracket and a reflector. With the relay output it is possible to switch directly to 3A.

SPPR 2910T 5

SPPR 2910T 5 is a polarised photoelectric retro-reflective sensor with a range of 10 meters, a relay output and 12-240 Vac/dc power voltage. Sensitivity and on/off delay are adjustable through the potentiometer. Delivered with mounting bracket, but without reflector.