Possible causes: Correct operation is essential to ensure the accuracy of the oxygen detector.

Solution: Follow the manufacturer's instructions to avoid incorrect operation that may cause damage to the oxygen detector or inaccurate measurement.

Maintenance:

Possible causes: Regular cleaning and maintenance of the oxygen detector, including cleaning the sensor, checking the connection points, etc., can extend the life of the instrument and maintain its accuracy.

Solution: When reusing the oxygen detector, make sure that there is no air leakage when connecting the sampling pipeline, and carefully blow the air leakage clean.

Pipe material and surface roughness:

Possible causes: The humidity and roughness of the pipe material and surface may affect the change of oxygen content in the sample gas.

Solution: The oxygen detector should choose the appropriate pipe material (such as stainless steel pipe) and avoid using pipes that are easy to cause pollution (such as plastic pipe and rubber pipe).

Instrument leakage:

Possible causes: any imprecise connection points, welding points, valves, etc. may cause oxygen in the air to reverse into the pipeline and inside the oxygen detector, thus obtaining the result of high oxygen content.

Solution: Strict leak detection should be carried out before the initial activation of the oxygen detector to ensure that the instrument is tight and does not leak.

In summary, we can see that the key factors that affect the accuracy of the oxygen detector involve the common influence of instrument design and manufacturing, calibration and calibration, environmental factors, operation and maintenance, and many other aspects. Therefore, in order to ensure the accuracy of the measurement results, we need to comprehensively consider these factors and take corresponding measures to optimize the performance of the instrument, so as to improve the accuracy of the oxygen detector through continuous improvement and optimization, and provide a strong guarantee for personnel safety and production efficiency.