GJC4 methane sensor, GJC4 methane sensor supply

GJC4 methane sensor, GJC4 methane sensor supply, GJC4 methane methane sensor sensor manufacturers zmjt02 GJC4 Products GJC4 methane sensor to meet the needs of our monitoring of underground coal mine methane concentration. It can continuously and automatically converts underground methane concentration into a standard electrical signal transmission to mating equipment, and has a local display of methane concentration, overrun sound and light alarm. Explosion test the sensor by the state authorities for online testing, can be used with all types of domestic monitoring system and power meter, gas locking device supporting wind power, suitable for stationary use in the coal mining face, electromechanical chamber, back to the wind tunnel and other locations. GJC4 methane sensor main features. The use of highly integrated single-chip computer and digital circuit, the circuit structure is simple, reliable performance, ease of maintenance and debugging. ? 2. Infrared remote control adjustment to achieve a zero point calibration, alarm and other features that make adjustment easy and convenient. 3. Increase the sensor power control functions, and can be set off point, to achieve a multi-purpose machine. 4. Using the new switching power supply, reducing the overall power consumption, increasing the transmission distance of the instrument. 5. Increase the fault self-test function, easy to use and maintain. 6. We designed a new high-strength shell structure, enhance the impact resistance of the instrument. GJC4 methane sensors are suitable for 1, applicable conditions Ambient temperature: 0 ℃ ~ 40 ℃ Relative humidity: ≤98% RH Atmospheric pressure: 80kPa ~ 116kPa Winds: 0m / s ~ 8m / s suitable for containing gas or coal dust explosion hazard of coal mine underground. GJC4 methane sensor performance indicators measuring range: ± 0.00% CH4 ~ 4.00% CH4 basic error% CH4 0 ~ 1.00% ± 0.10 1.00 ~ 3.00 true value of the 10% 3.00 ~ 4.00 ± 0.30 Resolution: 0.01% CH4 Display: 4 LED display, and can represent a positive or negative display values. Response time: Response time (T90) of the sensor should ≤20s alarm point: adjustable, set at 1.00% CH4 sensor factory, Alarm error: ± 0.05% CH4. Alarm: sound, light, wherein: a) sound level intensity: ≥80dB (A); b) light visibility: 20m at clearly visible. Work: diffused power functions: a) power point: adjustable sensor is factory set at 1.50% CH4 b) restoration point: adjustable sensor is factory set at 1.00% CH4 explosion-proof type: Mine intrinsically safe and explosion-proof mark: Exdib I Mb output signal: a) Frequency: 200 ~ 1000Hz; 5 ~ 15Hz; 5 ~ 155Hz; (current pulse output or opto-isolated outputs) b) power output: 5VDC / 20mA of DC signal, or opto-isolated outputs. Dimensions: 270 × 155 × 55mm Weight: ≤1.3kg; Case Material: Stainless steel. The product has been exported to many countries, the United States, France, Canada, Indonesia, Russia, Vietnam, Australia, South Korea, Iran and other customers receive the praise due to production batch, the specific model is different from the above picture for reference only, contact Our sales staff will be specifically verified. National unity free sales Tel: 400-086-0537