Method for on-site verification of gas monitoring instrument controlled by mobile phone APP

Abstract

The invention discloses a method for on-site verification of a gas monitoring instrument controlled by a mobile phone APP. The method is carried out according to the following steps: a first step is to charge a synthetic air, a second step is to charge a standard gas, a third step is Bluetooth pairing, a fourth step is to set composition; a fifth step is to set a flow rate; a sixth step is to connect the gas monitoring instrument, a seventh step is to determine measured concentration points by a worker; and an eighth step is the on-site verification, to be more specific, each measurement concentration point is separately verified according to a from-low-to-high concentration order, and the mobile APP displays each indication error corresponding to each verification operation for determining whether detection results of the gas monitoring instrument exceed an allowable error range according to the allowable error range of the gas monitoring instrument to be verified. The method can realize single-person operation and controls through the mobile phone APP, thereby improving the efficiency of the on-site verification of the gas monitoring instrument and improving the verification accuracy.

Description

technical field [0001] The invention relates to the technical field of meter calibration. Background technique [0002] The gas monitoring instrument works for a long time in the hazardous gas workplace, continuously and uninterruptedly measures the gas content in the monitored range, and the gas monitoring instrument works for a long time. In order to ensure the reliability of the gas monitoring instrument and the accuracy of the measurement, it is necessary to regularly calibrate the gas monitoring instrument. The usual calibration method is to remove the gas monitoring instrument and carry it to the laboratory for calibration, but this This method is complicated to operate, and the calibration period is long. During the calibration period when the instrument is removed, the monitoring of the on-site operating environment cannot be realized, and there are potential safety hazards. [0003] Gas monitoring instruments are installed at different positions in the monitoring a...

AI Technical Summary

Problems solved by technology

In order to ensure the reliability of the gas monitoring instrument and the accuracy of the measurement, it is necessary to regularly calibrate the gas monitoring instrument. The usual calibration method is to remove the gas monitoring instrument and carry it to the laboratory for calibration, but this This method is complicated to operate, and the calibration cycle is long. During the calibration period when the instrument is disassembled, the monitoring of the on-site operating environment cannot be realized, and there are potential safety hazards.

[0003] Gas monitoring instruments are installed at different positions in the monitoring area, and their installation height is related to the gas density. Therefore, some gas monitoring instruments are installed at a high position from the ground, and the calibration personnel cannot operate conveniently while observing the displayed value of the instrument. The on-site calibration device requires the cooperation of multiple people or repeated trips between the on-site calibration device and the gas monitoring instrument, which reduces work efficiency

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