Oxygen is an important gas for human survival. Whether the oxygen content in the air is within a safe range is related to the life safety of workers. Especially in the chemical industry, oxygen detectors are required to detect oxygen concentration. This can prevent hypoxia and oxygen enrichment in the working environment. However, some friends due to some wrong operation or other reasons in the use of the process, sometimes the oxygen detector can not work properly. So what factors will affect the normal operation of oxygen detector ? The following is a brief introduction by yi yun Tian:

The following are the factors that will affect the normal operation of the oxygen detector:

1. Simplify and clean the gas path switcher.

microanalysis requires that environmental damage to sample gas caused by dead corners in various pipe fittings, chamfering machine valves, headers, etc. on the gas circuit must be effectively eliminated. Therefore, the manual pipe bender should simplify the gas path switcher as much as possible, and choose the connecting piece with small dead angle. And avoid the use of water seal, oil seal and wax seal and other equipment to prevent dissolved oxygen from escaping and causing environmental damage. It is also necessary to avoid adding purification equipment that is easy to cause environmental damage to the pipeline from the sample gas to the inlet of the oxygen detector. Only in this way can we ensure that the switch is clean and the data is correct.

2. Environmental damage to the oxygen detector.

When reusing the oxygen detector, pay attention to whether air leaks when connecting the sampling line, and carefully blow the leaked air clean, and try not to let a large amount of oxygen pass through the sensor to prolong the service life of the sensor. In the process of pipeline switcher purification, in order to shorten the purification time, a certain method is needed. Riveting machines generally use high-pressure venting and small-flow blowing alternately to quickly purify the pipeline.

3. Selection of pipe material.

The pipe material and surface roughness will also affect the change of oxygen content in the sample gas. Generally, it is not suitable to use plastic pipes, rubber pipes, etc. as connecting pipes. Copper or stainless steel tubes are usually used for ultra-micro analysis (referring & lt;0.1ppm) must be polished stainless steel pipe.

4. Leakage of oxygen detector.

The oxygen detector must be strictly leak-checked prior to initial activation.The oxygen detector can only obtain correct data results under strict and leak-free conditions. Any connection points, solder joints, valves, etc. are not tight, will lead to oxygen in the air into the pipeline and oxygen detector, resulting in high oxygen content.

In summary, these are some factors that will affect the normal operation of the oxygen detector. In order to ensure the smooth operation of the oxygen detector, we must strictly check whether the instrument is in normal working condition, so we must remember to standardize the test before use, so as not to affect the normal operation of the oxygen detector, in order to get accurate results.