According to different principles, oxygen analyzers can generally be divided into three categories: fuel cell method oxygen analyzer, zirconia sensor of zirconia method, and magnetic oxygen analyzer. There are many precautions in the use of oxygen analyzer, otherwise it is very easy to have problems such as inaccurate analysis results. Therefore, York Instruments has summarized several precautions for your reference:
- Before the oxygen analyzer is used for the first time, leak detection should be performed on connection points, solder joints, valves, etc., to ensure that oxygen in the air will not reverse seep into the pipeline and the inside of the instrument, resulting in high measured values.
- Before using the instrument again, clean the piping system to blow out the leaked air, and make sure that no air leaks when connecting the sampling pipeline.
- The change of oxygen content in the sample gas will be affected by the pipe material and surface roughness. Therefore, copper pipes or polished stainless steel pipes are generally used for connecting pipes, instead of plastic pipes, rubber pipes, etc.
- During microanalysis, avoid the pollution of the sample gas caused by various pipe fittings, valves, meter heads and other dead angles. Therefore, the gas circuit system must be simplified as much as possible, and the dead angle of the connecting parts should be small. Power prevents pollution caused by the escape of dissolved oxygen. It is best to use water seal, oil seal and wax seal to ensure the accuracy of the data