₹ 450/Piece
- Sensing Distance: 0
- Brand: imported
A photoelectric switch typically works on the principle of light detection and interruption. It consists of two main components:
Transmitter: An emitter that sends out a beam of light, usually infrared (IR) because it is invisible and reliable.
Receiver: A sensor that continuously "listens" for the light beam from the transmitter.
The sensor is installed at the edges of the elevator doors, with the transmitter on one side and the receiver on the other. When a person or object enters the doorway, they break the path of the light beam. This interruption is instantly detected by the receiver, which sends a signal to the elevator's control system. The control system then responds by stopping the doors from closing or, if they have already started to close, reopening them to prevent a pinch-point accident