Hydrogen gas detector, as a member of the gas detector, is mainly responsible for real-time monitoring of hydrogen concentration. When hydrogen is present in the environment, the instrument responds immediately and displays a specific concentration value on the LCD screen. However, in order to ensure the accuracy of the test data, the hydrogen gas detector needs to be tested after a long period of use. So do you know how to calibrate a hydrogen gas detector?The following Yiyuntian Electronics will introduce to you:
Calibration method of hydrogen gas detector:
1. In principle, the calibration of the hydrogen gas detector should select the standard sample gas that has been certified by measurement and matches the tested gas. The standard gas sample selected for the same measured medium is different, and the alarm point is also different.
2. Before the calibration of the hydrogen gas detector, the surrounding environment of the probe should be free of combustible gas. Assuming that there is combustible gas, the rain cover should be removed first, filled with a certain amount of clean air, and then connected to the sample gas to ensure the calibration.
3. When the measured gas of the hydrogen gas detector is a hydrocarbon mixture, isobutane is the sample gas, followed by propane.
4. For non-hydrocarbon mixtures or hydrocarbon mixtures with large heat differences during incineration of gases with ** lower concentration, butane, isobutane, propane and other easily available and stable single-component fuels can be used as sample gas as a last resort. At this moment, it is necessary to adjust the range of the hydrogen gas detector according to a certain detection signal conversion contact.
To sum up, it is the calibration method of hydrogen gas detector. In order to ensure accurate measurements in hydrogen gas detectors, regular calibration is particularly important. In principle, we recommend calibrations once a year or, if necessary, semi-annually. As for the specific calibration schedule, it needs to be flexibly decided according to the actual usage.