Maxlogic beam-type smoke detectors are designed for both addressable and conventional systems. There are two types of beam detector: Receiver-transmitter type and reflector type. The first type consists of separate receiver and transmitter units. In the normal state, IR light beams sent from the transmitter reach the receiver, but in the event of fire, smoke obstructs the beams, so they cannot reach the receiver. The distance between the two units can be between 5m and 100m.
The second type consists of a reflector and a unit that works as both transmitter and receiver. In the normal state, IR light beams sent from the transmitter/receiver unit bounce off the reflector and return to the unit. In the event of fire, smoke obstructs the IR light beams, preventing some of the light rays from reaching the transmitter/receiver unit. If there are four reflectors, the distance between reflector and the unit can be between 5m and 50m; if there is one reflector, the distance between reflector and the unit can be between 5m and 35m.
Users can determine the fire-alarm threshold level as 25%, 35% or 45% obscuration of IR light beams according to ambient conditions. Should a solid object interrupt the IR light beam momentarily, there will be no fire alarm or fault alarm. However, if a solid object interrupts IR light beam for 6–8 seconds, the detector will give a fault alarm. The beam detector can recognize the difference between smoke and solid objects by evaluating the percentage of IR light rays blocked. This feature prevents false alarms originating from solid-object interruptions.
With numerous advanced features, Maxlogic beam-type smoke detectors provide effective detection in the first moments of a fire. Available in both addressable and conventional models, Maxlogic beam-type smoke detectors are designed exclusively for places with high ceilings.
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