Mine hydrogen tester CQH100 CQH100 mine hydrogen tester Model: CQH100 Description: CQH100 mine hydrogen measuring device, measuring downhole hydrogen content, the use of imported electrochemical sensors, sensor head outwards, to avoid dust accumulation caused by sensor failure Rechargeable be zero calibration, the next calibration date can be automatically reminded, using townhouse charger. CQH100 mine measuring hydrogen I. Introduction CQH100 used for mine detection of hydrogen, such as used in transformers, underground substations, the engine room, the flag can be used to mine fire detection and analysis of gas, can also occur after the explosion rescue situations, it imported electrochemical sensor, responsive, accurate and reliable. Instruments made of sturdy plastic casing and good protection design, can be used with a gas such as dust explosive atmospheres. Instrument compact and lightweight, can easily grip the belt, shirt pocket or helmet. Super high brightness LCD in a dark underground OLCD still clearly visible, readable, the gas concentration, time, power and other data. If the current gas concentration exceeds a preset limit value, the instrument to sound, light alarm to alert the user. Trial sites: suitable for a gas explosion and coal and gas outburst of occasions, including underground transformers, power stations, substations, mine rescue, coal mining face, back to the wind tunnel and other uses. Hydrogen is the lightest gases downhole. The hydrogen concentration in the air 4% to 74%, have a risk of explosion. The main source of hydrogen underground transformer and battery charging. In addition, mine fires and explosions will also produce. Second, the product name: Mine hydrogen tester main technical parameters of the project parameters Measuring range 0-100ppm Diffusion sampling method sensors: electrochemical sensor * Sensor orientation: outward, to avoid dust accumulation caused by sensor failure protection Housing material ABS plastic grade IP54, waterproof and dustproof security level Class I, Division 1, Group A, B, C, D, T5; ambient temperature continuous operation -20 ℃ ~ +45 ℃ intermittent work: -40 ℃ ~ +55 ℃ Humidity 0% ~ 95% RH (non-condensing) * Display OLCD high brightness LCD display name of the gas, the measured value, the battery * key four operating keys Alarm 90Dba, 10cm buzzer, red and green LED flashing alarm signal high concentrations, battery alarm zero calibration methods / extended calibration * Battery 1500mAH high-capacity polymer lithium-ion battery, rechargeable * Calibration: Rechargeable be zero calibration; next calibration date can automatically alert * Charger: Charger townhouse independent proof type intrinsically safe mine ExibI running time can work for two years Size 93mm × 49mm × 22mm Weight 102g (with battery) Jining Branch-Mining Equipment Co., large favorably, please call