What is Beam Smoke detector

What is fire beam smoke detector?

A beam smoke detector is a device that consists of transmitter/receiver unit and a reflector. It transmits beam of light in order to detect smoke across large areas, wherein smoke is naturally a sign of fire. Beam smoke detector works on the principle of light obscuration, where there is a transmitter that emits beam and a beam receiver. If the presence of the smoke disrupts a certain percentage of beam light of the transmitted light, it will send signal to the panel that there is a fire. Beam smoke detectors area commonly used in area wherein standard point smoke detectors are not economical or efficient to use. 

Types Of Fire Beam Smoke Detector

1. First type Fire Beam Smoke Detector Consisting of receiver and transmitter unit. In normal state, light beams sent from transmitter reach the receiver unit. If the receiver did not receive enough light beams, it will trigger a general alarm. The distance between two units can be between 5-100 meters.

2. Second type Fire Beam Smoke Detector consists of reflector and a unit that works as both receiver and transmitter. In normal state, IR light beams sent from receiver-transmitter unit reflect from reflector and reaches the unit. In case of fire, smoke obstruct the IR light beams and some of light rays did not reach receiver-transmitter unit. If there are 4 reflectors, the distance between reflector and the unit can be between 40-100 meters. If there is 1 reflector, the distance between reflector and the unit can be between 8-40 meters.