Mining GQQ0.1mg/m3 smoke sensor, mine with smoke protection, smoke alarms 
 Mainly used for monitoring coal mine rubber, coal dust due to friction from the smoke generated by the heat or other reasons. The sensor uses advanced gas probe, after the processing of the particular circuit. Sensitive, reliable, and correct action, refused to move, and so on. Shell small and easy to use, is the ideal components to install smoke alarms. 
 Type of protection: intrinsically safe mine 
 Explosion-proof mark: ExibI. 
 Technical performance 
 a grid voltage allows the fluctuation range: -25% to +10%; 
 working voltage: DC12V, operating current of 150mA; 
 c, recovery time: more than 5 seconds. 
 d, the sensor-to-host transmission distance not less than 1000m (single core cross-sectional area of ??1.5mm2) 
 e, the output signal of the sensor system should be consistent with the provisions of the MT209-1990 5.3 and a smoke-free detection (5-10V), smoke alarm ≤ 0.5V 
 F, the sensor sensitivity and response time 
 When the smoke concentration is 0.1mg/m3, the sensor response time ≤ 30s. The sensitivity of the sensor for Class II. 
 Connect the power, the green light to be stable after 10 minutes, the green off the red light, said detection probe thermal stabilization time of the end of the sensor into the detection state. When a small amount of smoke into the smoke chamber, the red light flashes simultaneously control three pipe conduction, output low, so that the relay is closed. Smoke protection or automatic fire extinguishing. 
 GQQ0.1mg/m3 smoke sensor, temperature, speed, emergency stop coal-bit sensor