Precautions for gas detector calibration
1. Calibrate the environmental conditions. The gas alarm is an electronic instrument, and the error in its verification mainly comes from the verification environment. It is required to be well ventilated, and the measured components will not be disturbed during calibration, and its environment and temperature need to reach a certain value.
Second, calibration flow control. Since gas alarms are mostly catalytic combustion sensors, the flow rate directly affects the accuracy of the test results, so the flow rate needs to be controlled. If the flow rate is too large or too small, it will affect the calibration result.
3. During the calibration, the indication value of the main controller and the on-site detector do not match. When the gas concentration of the gas detector in the environment reaches or exceeds the preset alarm value, the main controller will send out an alarm to remind the on-duty personnel to take safety measures, so as to ensure the safe production of the enterprise.
4. Calibration cover for calibration. When calibrating flammable and toxic gas alarms, a calibration cover will be used. Each manufacturer has its own dedicated calibration cover. When calibrating, it is better to use the calibration cover produced by the original factory, and the calibration result will be more accurate. In addition, in order to ensure the accuracy of detection, the gas alarm should be calibrated at least once a year.
