1. Overview
The independent photoelectric smoke and fire detection alarm (hereinafter referred to as the alarm) is produced with a special structure designed infrared photoelectric sensor, a reliable MCU, and SMT chip processing technology, which has high sensitivity, stability and reliability, low power consumption, beautiful and durable , Easy to use and other features. This product is suitable for smoke detection and alarm in factories, homes, shops, computer rooms, warehouses and other places. The product is not suitable for use in the following places: places where smoke remains under normal circumstances. Places with large dust, water mist, steam, oil mist pollution, and corrosive gas. Places where the relative humidity is greater than 95%. .Places where the ventilation speed is greater than 5m/sec.
2. Working principle
The alarm adopts a photoelectric sensor with a special structure design combined with a reliable MCU, which can effectively detect the smoke generated during the initial ignition phase of the fire or after it is generated. When smoke enters the alarm, the light source is scattered, the light receiving element feels the light intensity, and the received light intensity has a certain linear relationship with the smoke concentration. The alarm continuously collects, analyzes and judges on-site parameters. When confirming on-site data When the light intensity reaches the predetermined threshold, the red LED light of the alarm will light up and the buzzer will be activated. When the smoke in the working environment of the alarm disappears, the alarm will automatically return to the normal working state.
3.Technical characteristics
Sound pressure level: >80dB(A) (1 meter directly in front)
Power supply: DC3.6V
Quiescent current: 30uA
Alarm current: 45mA
Battery life: three years
Software version: Verl.1.0
Working temperature: -10*C~+50°C
Relative humidity: <95%RH
Output form: sound and light alarm
Executive standard: GB 20517-2006
Weight: about 115g (including battery)
Product size: 100mm×34mm
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