Multi-station gas detector calibration instrument and calibration method of multi-station gas detectors

Abstract

The invention discloses a multi-station gas detector calibration instrument and a calibration method of multi-station gas detectors. The multi-station gas detector calibration instrument comprises a machine frame, a calibration station, an air supply device and a monitoring device. A camera, branch liquid crystal displays, a sound-light alarm module and an air supply opening are formed in the calibration station, the monitoring device comprises a microcontroller, an industrial personal computer and a displayer, and a key operation module, an electric current signal processing module, a pressure sensor assembly and a flow sensor are connected to the input end of the microcontroller. The calibration method of the multi-station gas detectors comprises the following steps that firstly, preparation work before test is carried out; secondarily, indication errors of the gas detectors are obtained; thirdly, repeatability of the gas detectors is obtained; fourthly; response time of the gas detectors is obtained; fifthly, drifting values of the gas detectors are obtained; and sixthly, test data of the gas detectors are judged. According to the multi-station gas detector calibration instrument and the calibration method of the multi-station gas detectors, calibration of the multiple gas detectors can be simply, conveniently and rapidly completed, the calibration process is easy to control, and the calibration quality, efficiency and accuracy of the gas detectors are improved.

Description

technical field [0001] The invention belongs to the technical field of gas detector verification, and in particular relates to a multi-station gas detector verification instrument and a verification method. Background technique [0002] The gas detector is a kind of gas leakage concentration detection instrument, which mainly uses gas sensors to detect the gas concentration existing in the environment. In recent years, gas detectors have been widely used in petrochemical, safety and environmental protection, chemical industry and other industries, especially in petrochemical industry. Whether the gas detector works normally is directly related to the property safety of the enterprise and the life safety of the on-site workers. [0003] At present, the verification of gas detectors is still in the stage of manual operation verification. Although manual verification can complete the verification task of gas detectors, the procedures in this process need to be operated indepe...

AI Technical Summary

Problems solved by technology

Although manual verification can complete the verification task of gas detectors, the procedures in this process need to be operated independently, and the labor intensity is high. It is acceptable to verify a gas detector. If it is a large-scale verification and calibration, it is difficult to meet the demand.

In addition, reading records of indication values, data processing and issuance of result judgments are all done manually, resulting in a lot of repetitive work, high labor intensity and low verification efficiency

In particular, the original display value pattern of the gas detector cannot be saved. If the display value is not read accurately due to human error in the verification, the source cannot be traced and it is difficult to be held accountable.

Therefore, there is a lack of a multi-station gas detector verification instrument and verification method, which is convenient to operate, improves the efficiency of gas detector verification, ensures the accuracy of gas detector verification, and reduces manual labor intensity.

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