With a reflex light barrier, the transmitter and receiver are housed in a single enclosure. A focused pulsed light beam is emitted via a polarising filter on to a remote reflector. The reflected light beam returns to the sensor, where it passes a second polarising filter before reaching the receiver. If an object interrupts the light beam, the sensor registers the reduced light intensity and activates the output.
Reflex light sensors with background suppression emit a focused beam of light on a remote object. A part of the reflected light radiates back into the sensor and falls on a position-sensitive device (PSD). This receiver differentiates between the light reflected from the object and the light reflected from the objects in the background. The output is enabled only when a value is reached that corresponds to the pre-set distance to the object.
• Ø x L: (W x H x D): 15 x 50 x 40 mm
• Switching range: 30 - 500 mm
• Connection: M12 plug, 4-pin
• Switching function: PNP anti-valent
• Supply voltage: 10 - 36 V DC
• Light type: red light
• Protection class (IP): IP67
• Material: PBTP
