Overview SRQ gas meter calibrator is mainly used for calibration and testing and surface coal mine methane sensors, oxygen sensors, carbon monoxide sensors, carbon dioxide sensors and other types of gas sensors; gas detection alarm, oxygen detection alarm, carbon monoxide alarm detector, carbon dioxide detector Alarm and other types of gas detection alarm; various gas analyzer, power meter methane, coal mine gas drainage pipeline with sensors. Gas meter calibrator main components are manufactured using special materials and rigorous stress and tightness test, the safety factor in line with national standards. At the same time the gas meter calibrator with reasonable design, compact, small size, light weight, stable performance, safe and reliable, simple to operate, easy to carry, intuitive flow advantages. SRQ gas meter pressure calibrator major technical indicators: (0.1-15) MPa tightness: 15MPa gas volume: (300 ~ 600) L Weight: (2 ~ 3) kg volume: (2 ~ 4) L adjustable flow : (0 ~ 5000) mL / min Uncertainty: Flow 3%; CH4 calibration gas 2%; O2 calibration gas 1%; CO calibration gas 2%; N2 gas mark 1% supporting the use of a manual one certificate dedicated a special wrench calibration gas cylinder hose set a special dedicated a special gas meter bridge a (filled with standard gas) valve a copper material, the accuracy of 2%, stepless adjustment SRQ gas flow meter calibrator is mine ventilation area, testing and inspection agencies, security metering stations, research institutes, laboratories and manufacturers of gas detection products the best choice. ★ according to the standard substance (standard gas) concentration, the exact value of the linear calibration regulations, in order to prevent the occurrence of substance concentration value of the standard overlay changes must specifically dedicated bottle, we advise you to purchase no less than three. Advantages: the most stable performance, easiest, best air tightness, the largest gas storage capacity, supporting the whole.