How to judge whether the gas detector is faulty?
To judge whether the gas detector is faulty, we can check it from the following aspects:
1. Display the fault code
Check whether the instrument displays error code or fault indication, which directly reflects the fault.
2. The test is not accurate
If the standard test gas is used for testing, the result may be damaged if it deviates too much from the standard value.
3. Can't start normally
The tester can't be powered on normally, and the display screen doesn't light up, which may be a circuit fault.
4. Calibration failed
If the calibration of the gas detector cannot be completed according to the standard procedure, it is probably a fault.
5. No response
For gases with different concentrations, the detector is insensitive and the response reading is abnormal.
6. The result is unstable
The test results fluctuate greatly, and the same sample is measured continuously, but the reading difference is too large.
Step 7 damage the appearance
Check the instrument shell, probe and display screen for mechanical damage.
8. Probe connection failure
Judge whether the probe is connected abnormally, resulting in signal interruption.
Based on these indicators, it can be judged whether the gas detector is likely to fail and needs to be repaired.
How to judge that the gas detector is broken?
1. The instrument can't start normally, or the display screen can't light up.
2. The self-check function is invalid, so it cannot pass the self-check.
3. Repeated detection of gas with the same concentration results in excessive fluctuation or instability.
4. Slow response to the change of gas concentration, unable to accurately display the change of concentration.
5. The alarm function fails, and an early warning cannot be given at the set concentration.
6. The signal transmission interface is abnormal, and it is impossible to connect and communicate with external devices normally.
7. The appearance of the instrument is damaged, or an abnormal information code is displayed.
8. The test results of other instruments of the same model are significantly different from their performance.
9. The indication of power supply is abnormal, indicating charging failure, etc.
