GST I-9105R, Инструкция по установке и эксплуатации

Страница: 7 / 26

I-9105R
Intelligent Reflective Beam Detector
Installation and Operation Manual
The Intelligent Solution
5
Fig. 2
3. Operation Principle
The detector and reflector are placed oppositely. The detector includes
emitting part and receiving part. Infrared beam of certain intensity sent
out from the emitting part is reflected by the right-angle prisms of the
reflector, and then received by the receiving part of the detector. The
receiving part simultaneously collects and amplifies the returned
infrared beam, analyze and judge the collected signals through its
microprocessor. When the detector is in normal monitoring state, the
intensity of infrared beam received by the receiving part is steady at a
certain level. When smoke particles enter the detecting area, the
intensity of infrared light received by the receiving part falls owing to
light scattering. When the smoke particles reach a certain density, and
the intensity of infrared light received by the receiving part is reduced
below the preset threshold value, the detector alarms fire, illuminates
red LED. And fire output contact is closed. If connected with GST
control panel, the fire signal will be passed to the panel through loop.
Operation principle is shown in Fig. 3.
Adjusting Wheel
To Be Glued
Mounting Direction
Rotary Rack
Flexible Cable
Reed Switch
To Be Glued