The devices in the O-40E Extended series for medium ranges have a robust metallic housing with a metallic plug and are used in the detection of standard or small parts. These light barriers detect with LED or with laser variants (laser class 1) that are safe for the eye.
Background suppression sensors
Retroreflective diffuse sensors with background suppression provide reliable detection results with varying objects. They evaluate the position of objects, the objects located behind the set switching position are suppressed.
Retroreflective sensors make long ranges possible, with simple assembly and a high degree of system availability. The emitted light is reflected back by a reflector and evaluated in the retroreflective sensor.