What should I do if the gas detector is inaccurate? Is there any solution?
Generally, when we use gas detectors for gas detection on a daily basis, we will encounter various failures. For example, what should we do if the gas concentration value detected by the gas detector is inaccurate? How to deal with it?
First of all, when we encounter a fault problem during the use of the gas detector, we must not deal with it blindly and panic, so as to avoid damage to the parts of the detection instrument caused by some unprofessional operations. If it is confirmed that the gas detector is inaccurate in detecting the actual concentration of gas in the environment, and the difference between the theoretical value and the actual value is large, it is recommended to calibrate the instrument through standard gas to ensure the accuracy of the detection, and send it to the factory for calibration or send it to a provincial or above Verification and calibration by relevant third-party metrology and verification institutions. It is difficult for non-professional people to deal with the related product accuracy and other issues.
How to solve the inaccurate detection of gas detector:
Solution:
1. The gas detector confirms whether the actual concentration of the gas in the detection environment is accurate. The difference between the theoretical value and the actual value is very large. It is recommended to calibrate the instrument through standard gas to ensure the accuracy of the detection, or send it to a relevant third party above the provincial level Verification and calibration by metrological verification institutions; it is difficult for non-professional institutions to deal with such product accuracy issues.
2. If the detection is still inaccurate after calibration, you need to confirm with the manufacturer whether the gas sensor can continue to be used. If the sensor itself is approaching its service life, even if it can be used normally in a short period of time after recalibration, the measurement will still occur after a period of time The value is inaccurate, and the drift value is too large, it is recommended to contact the manufacturer to replace the gas sensor.
3. If the gas sensor is used for a long time, there may be errors in the measured value, and the detector needs to be recalibrated.
Regarding the solution that the gas detector cannot detect low-concentration gases:
1. First of all, if it is a pump-suction gas detector, first check whether the air pump is working normally, and block the air inlet with your finger for 5 seconds. If it is normal to feel obvious suction, if there is no suction, check whether the air inlet is blocked;
2. Next, pass in nitrogen gas to calibrate the zero point or calibrate the zero point in clean air, and then test after calibration;
3. After calibrating the zero point, if no gas is detected, it is necessary to restore the factory settings;
4. Finally, if the above steps are completed and still not detected, it is necessary to confirm whether there is a gas to be measured on site, or the concentration of the gas to be measured is really low, and if it is lower than the minimum detection accuracy of the gas sensor, it cannot be detected.
