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Instruction

   places.Methane sensor in coal mine safety monitoring system for coal mine, the mining working face and goaf, return air roadway, the place such as mechanical and electronic chamber, continuous monitoring of methane concentration when the concentration of methane overrun, can automatically send out sound and light alarm, for the coal mine workers, methane detection, underground management personnel to carry use, such as fixed use is also available for the above.

Refrence

    Technical parameters, detection of gas, methane detection principle: principle of infrared detection range: 0 ~ 100% LEL, 100% Vol, 100% Vol optional resolution: 0.1% LEL (0 ~ 100% LEL), 100% Vol Vol (0 ~ 100%) detection method: pump suction display: LCD backlit display precision: plus or minus 2% FS alarm way: sound and light alarm (alarm point is adjustable) response time: less than 30 s recovery time: less than 40 s linear error, uncertainty of plus or minus 1.0% : 2% Rd zero drift: 0.1 mm + / - 2.0% FS/year or less span drift: working power supply: + / - 1.0% FS/month or less DC3.6 V sensor life: 5 years using the environment: temperature - 20 ℃ ~ + 70 ℃;Relative humidity 95% RH or less (gel);Used in condensation environment needs custom-made battery capacity: 3.6 VDC, 5000 ma, with the function of charging protection Installation dimensions: 180 * 190 * 190 mm (L * W * H) standard parts: 0.8 m sampling handle a root, instrument box, a charger a heavy volume: 1.5 Kg.

Function

   With functions of automatic zero;
A calibration being higher reliability, more stable performance, use more simple and convenient;
Using high resolution single chip microcomputer, the measured values are accurate and reliable;
Being turned on and with functions of automatic steady zero;
Optional debug menu structure, convenient deb ing, the operation is simple.