Point type optical smoke detector
Product Description
Point type optical smoke detector
Product characteristics
Built-in crested microprocessor for fire industry, the detector can store and judge the data collected by itself, and has the function of self-diagnosis.
Automatic pollution compensation. Zero shift according to its own pollution degree to minimize false positives;
Wide range of application, different materials after the combustion of white smoke or black smoke can respond;
Strong anti-interference and anti-moisture ability;
Two buses, no polarity. Low power consumption, the longest transmission distance 1000m.
Scope of application
The point type optical smoke detector can effectively respond to the smoke particles produced in the early stage of fire and smoldering stage. Mainly used to detect visible or invisible combustion products and slow fire at the beginning of the fire, suitable for hotel rooms, office buildings, libraries, theaters, postal buildings and other public places, or for other halls and public places should not be installed temperature detectors.
Working principle
The point-type optical smoke detector consists of a maze, infrared transmitting part, infrared receiving part and the corresponding amplifying circuit. In normal operation, when there is no smoke in the maze, the infrared light from the infrared transmitting tube cannot reach the receiving tube, so the amplifier has no output; When there is smoke in the maze, some infrared light from the infrared light tube reaches the receiving tube due to the disperse-color effect of the smoke. The greater the concentration of smoke in the maze, the greater the amplifier output. When the smoke concentration reaches the set alarm threshold, the circuit will give an alarm signal.
Performance parameter
Operating temperature: -10 ℃ to +55℃
Storage temperature: -20 ~ +65℃
Relative humidity: ≤95% (no condensation)
Electrical characteristics
Working voltage: DC24V (DC19V~DC27V) modulated, provided by the controller.
Monitoring current: ≤0.3mA (DC24V)
Alarm current: ≤ 1mA (DC24V)
Confirm the monitoring state of the light and the alarm is on (red).
Communication characteristic
Wire system: two-wire system (non-polar)
The address range is 1 to 200.
Addressing mode: electronic encoder
The maximum transmission distance is 1000m.
Mechanical characteristics
Appearance: PANTONE Warm Gray 1 C off-white
Case material: ABS
Product quality: 92.5g
Overall dimension: Φ100mm ×H 46mm (including base)
Detection characteristic
Protection area: 60-80m².
