Pay attention to regular calibration and testing of gas detectors.
Toxic and harmful gas detectors, like other analytical and detection instruments, use a relative comparison method for measurement: first, calibrate the instrument with a zero gas and a standard concentration gas, obtain a standard curve, and store it in the instrument. During measurement, the instrument compares the electrical signal generated by the concentration of the gas to be measured with the electrical signal of the standard concentration to calculate the accurate gas concentration value. Therefore, zeroing the instrument at any time and regularly calibrating the instrument are essential tasks to ensure accurate measurement. It should be noted that many gas detectors currently have replaceable detection sensors, but this does not mean that a detector can be equipped with different detector probes at any time. Whenever replacing the probe, in addition to requiring a certain sensor activation time, the instrument must also be recalibrated. In addition, it is recommended to perform response testing on the standard gas used in various instruments before use to ensure that the instruments truly provide protection.
Pay attention to the detection interference between various sensors.
Generally speaking, each sensor corresponds to a specific gas being detected, but no gas detector can be highly effective. Therefore, when choosing a gas sensor, it is important to understand as much as possible the detection interference of other gases on the sensor to ensure accurate detection of specific gases.
