How to maintain and maintain the gas detector is correct
Gas detector maintenance method
1. When using the instrument, it is necessary to check the gas flow rate through the instrument. Generally, the gas flow rate is 30/h. If the flow rate is too large or too small, it will have a great impact on the measurement results.
2. The filter paper needs to be replaced in time after the instrument has been used for a period of time: stop the pump and drain the filter tank.
3. It is necessary to check whether there is any air leakage in the gas system of the instrument, check whether the weeping pump diaphragm is damaged, whether the sealing ring of the sampling probe is broken, whether the four-way valve, condensing steam and other components are damaged, etc.
4. Clean the sampling probe and dredge the sampling hole pipeline
5. Check whether the operating state of the condenser is normal, generally need to adjust its temperature within 3 degrees Celsius
6. Check whether the measuring device components are dirty and need to be cleaned in time.
Gas detector maintenance method
1. Inspection of the whole machine: The detector should be inspected at regular intervals, and the signal current in clean air is usually DC4mA.
2. Maintain the sensor: The sensor is installed in the instrument. Generally, it needs to be re-checked and calibrated within half a year to one year of use, and the tester will provide a test report.
3. If the sensitivity of the sensor in the gas detector is lost during use, it needs to be replaced in time. The regular calibration method can be used to judge whether the sensor is invalid. If the calibration value does not reach the standard value, the sensor needs to be replaced in time.
