No. B213
Infrared light barrier max. 50m

With the enclosed optics and highly sensitive photodetector this light barrier has a max. range of up to 50m! The infrared light ray is invisible for men. If the light ray between the transmitter and receiver is interrupted (if a person walks through it) the relay in the receiver switches.
Operating voltage: transmitter: 9..12V= approx. 70mA, receiver 12V= approx. 100mA. Relay contact: 1 x change over 3A.
Both boards have to be tipped. The phototransistor of the receiver is inserted into the board up to the limit stop (please pay attention to the correct polarity, one side of the phototransistor is flattened). The lens optic is stuck on the board in such a manner that the phototransistor is located in the centre of the diameter of the lens (in the focus). The receiver requires an operating voltage of 12V= (approx. 100mA) and the transmitter approx. 9V= (max. 70mA). Please use batteries or power units which are powerful enough (the small 9V compound batteries are too weak and not suitable!) It would be the best if you use 2 stabilized connector power units with 9V= and 12V= output voltage each.
In order to protect the phototransistor from lateral incidence of light, a plastic or cardboard tube must be slid over the optics. The inside of the tube must be stained black. Furthermore the cardboard tube must prevent the incidence of light from all directions with the exception of the front. Then the transmitter must be adjusted in such a manner that it radiates through the black tube on the optics exactly from the front.
The greater the distance from the transmitter to the receiver, the more exactly the transmitter must be aligned on the receiver. If the transmitter meets the receiver, the light emitting diode at the receiver lights and the relay switches on.


Gold-plated board!
Board dimensions:
Receiver: approx. 56 x 45 mm
Transmitter: approx. 17 x 55 mm
Fitting case: 2 x KEMO G027

Price group: 10
Recommended mirror: K002

 

Datasheet U 2531 B