Generally speaking, when we use gas detectors for gas detection, we will encounter various failure problems. What should I do if the gas detector detects that the gas concentration value is incorrect? What should I do?

First of all, when we encounter a failure when using the gas detector, do not blindly panic to deal with it, so as to avoid some unprofessional The operation damages the parts of the detector. If it is confirmed that the gas detector is not accurate in detecting the actual concentration of the gas in the environment, and the difference between the theoretical value and the actual value is very large, it is recommended to ensure the accuracy of the detection through standard gas calibration equipment, and perform factory calibration or related third-party metrology at or above the provincial level. Calibration of testing institutions. It is difficult for non-professional personnel to deal with the accuracy of the relevant products.

how to solve the problem of incorrect gas detector detection:

solution:

1. The gas detector confirms whether the actual concentration of the gas in the detection environment is accurate. There is a big gap between the theoretical value and the actual value. It is recommended to ensure the accuracy of the detection through a standard gas detector, or send it to the provincial level or above. Relevant third-party testing agencies carry out testing and testing. It is difficult for non-professional organizations to deal with the accuracy of this product.

2. If the inspection after calibration is incorrect, you need to confirm with the manufacturer whether the gas sensor can continue to be used. If the sensor itself is close to life, it can be used normally in a short period of time even after recalibration. If the drift value is too large after a period of time, it is recommended to contact the manufacturer to replace the gas sensor.

3. The gas sensor has been used for a long time, the measured value may have errors, and the detector needs to be re-corrected.

on the gas detector low concentration gas detection method:

1. first, if it is a pump suction gas detector, first check whether the air pump is working properly, block the air inlet with your fingers for 5 seconds, if the normal feeling has obvious suction force, if there is no suction force, check whether the air inlet is blocked

2. secondly, calibrate the zero point by nitrogen or in clean air, and check it after calibration

3. Then after calibrating the zero point, if the gas cannot be detected, the factory settings need to be restored

4. Finally, the above steps cannot be detected after the operation. Whether there is any detected gas on site or the detected gas concentration is really low, less than the minimum detection accuracy of the gas sensor can not be detected.