Optical sensor with a plurality of switching outputs

摘要

Optical barrier type sensor for detection of objects in a monitored area (4) comprises one or more light transmitters (6) and one or more matching receivers (10). A number of safety switch outputs (14) are provided over which switching signals for controlling a word machine are given out. The switching level of a switch signal is dependent on the detection of an object in a protection field of the monitored area.