What should I do if the gas detector is not detecting accurately? Is there any solution
Usually, we encounter various malfunctions when using gas detectors for gas detection in our daily lives, such as inaccurate gas concentration values detected by gas detectors. What should we do? How to handle it?
Firstly, when encountering malfunctions during the use of gas detectors, we must not blindly panic and deal with them, in order to avoid some unprofessional operations that may damage the components of the detection instrument. If it is confirmed that the gas detector is not accurate in detecting the actual concentration of gases in the environment, and there is a large difference between the theoretical value and the actual value, it is recommended to use a standard gas calibration instrument to ensure detection accuracy, and send it to the factory for calibration or relevant third-party metrology and verification institutions at or above the provincial level for calibration. Non professionals find it difficult to handle issues related to product accuracy.
How to solve the problem of inaccurate detection by gas detectors:
Solution:
1. The gas detector confirms whether the actual concentration of gas in the detection environment is accurate. There is a large difference between the theoretical value and the actual value. It is recommended to use a standard gas calibration instrument to ensure detection accuracy, or send it to a relevant third-party metrological verification institution at or above the provincial level for calibration; Non professionals find it difficult to handle accuracy issues with such products.
2. If the calibration results in inaccurate detection, it is necessary to confirm with the manufacturer whether the gas sensor can still be used. If the sensor itself is approaching its service life, even if it can still be used normally for a short period of time after recalibration, there may still be inaccurate measurement values and excessive drift values after a period of time. 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 measurement values, and the detector needs to be recalibrated.
The solution to the inability of gas detectors to detect low concentration gases:
1. Firstly, if it is a pump suction gas detector, check if the air pump is working properly. Use your fingers to block the air inlet for 5 seconds. If there is a noticeable suction force, if there is no suction force, check if the air inlet is blocked;
2. Next, introduce nitrogen to calibrate the zero point or calibrate the zero point in clean air, and then perform testing after calibration;
3. If gas cannot be detected after zero calibration, it is necessary to restore the factory settings;
4. After completing all the above steps and still unable to detect, it is necessary to confirm whether the measured gas is present on site, or if the concentration of the measured gas is indeed very low. If it is lower than the minimum detection accuracy of the gas sensor, it cannot be detected.
