Product Name: infrared methane sensor 

 Product Model: GJG100H type 

 Coal safety sign: MFB100174 

 Description: 
 This product uses the embedded microcontroller and non-dispersive infrared detection technology, to overcome the phenomenon of catalytic principle of sensor calibration cycle is short, easy to poisoning, sensor built-in precision temperature compensation circuit makes the detection accuracy will not drift due to temperature change. Measurement accuracy, fast response, calibration cycle, unaffected by other gases, wide measuring range, low power consumption, long life, stable performance and high reliability. With various types of coal mine safety monitoring system supporting the use of continuous monitoring of the methane concentration in the working environment. 

 The main technical indicators: 

 Item Specification 
 Measurement range (0 to 100)% 
 The basic error of ≤ ± 0.06% 
 Response time ≤ 25s 
 Input voltage DC (9 to 24) V/50mA (intrinsically safe power supply) 
 Output signal (200 to 1000) Hz, the RS485 (baud rate) 
 Transmission distance ≥ 2km 
 The alarm mode intermittent audible and visual alarm 
 Sound intensity ≥ 80dB 
 Explosionproof Type Exibd I 
 Sensor life> 5 years (imports electrochemical) 
 4 LED display 
 Dimensions 260 × 125 × 75mm 
 Weight ≤ 1kg 
 Equipment FYF5 mine with a remote control