CJT425X hanging methane oxygen measuring device CJT425X Hanging methane oxygen measuring device detects the type of gas product features: simultaneous detection of methane (0-4%), oxygen (0-25%) Display: two lines, four 2.3-inch red LED display pipe, within 30 meters clearly visible 200-1000Hz frequency and RS485 wired data transfer interface built suction pump, remote pump sampling CJT425X hanging methane oxygen measuring device profile CJT425X Hanging methane oxygen measuring device main suspension (or wall) in mining, tunneling face, ventilated main alley, with two rows, four 2.3-inch large display also shows methane (0-4%), oxygen (0-25%) of the data, 30 meters away clearly visible. Along with data upload interfaces (frequency and RS485) interface that can be used as more than two-parameter sensor and gas monitoring system networking, built-mining pump, remote sampling. Commonly known as the "big character", "wall-mounted dual-use instrument." Original catalytic combustion of methane, oxygen imported electrochemical sensor uses infrared remote control adjust the way, easy adjustment. Display with two lines, four large red digital tube, very eye-catching visual. Has overrun sound, light alarm. This instrument is reliable, reasonable structure, easy to use, suitable for a gas explosion and coal and gas outburst dangerous situations. Suitable for coal mining face, back to the wind tunnel and other locations fixed suspension. Alarm: large db (not less than 80 db), high brightness alarm mode. Calibration: Remote control calibration. * Sampling method: Built-mining pump, remote sampling: * Interface :200-1000Hz frequency and RS485 wired data transmission interface; Stability: measuring continuous work 365 days. Display: White LED structure: the overall stainless steel safety features: proof in the form: Mine intrinsically safe and explosion-proof; external power supply: DC 18V proof grade: ExibdI CJT425X hanging methane oxygen measuring device main technical parameters * Display: measurement data : two lines, four 2.3-inch red digital display tubes, clearly visible within 30 meters * simultaneous detection of simultaneous detection of methane, oxygen measurement range and basic error measurement of gas measurement range Basic error CH4 (0.00 ~ 1.00)% CH4 ± 0.10% CH4 (1.00 ~ 3.00)% CH4 true value ± 10% (3.00 ~ 4.00)% CH4 ± 0.30% CH4 O2 (0.0 ~ 5.0)% O2 ± 0.5% O2 (> 5.0 ~ 25.0)% O2 ± 3% FS Response time: ≤ 30s Jining Branch-mining equipment, large favorably, please call