Analysis of the cause of the failure of the gas analyzer
Frequent changes in span and zero point lead to large linearity errors and contamination of the gas chamber.
First of all, the frequent changes of the range and zero point lead to large linearity errors. The main reason is that there are many suppliers of flue gas online monitoring system instruments. Different suppliers will have different characteristics when designing gas analyzers, so it is necessary to accurately judge Where and why the failure occurs is more difficult. Therefore, when troubleshooting, first determine whether the display panel of the gas analyzer prompts a fault alarm, and determine the location of the fault according to the alarm information.
At the same time, since the design principle of the gas analyzer is mainly the principle of optical measurement, it is necessary to check the light source to determine whether it is a failure caused by aging, but it must be checked strictly according to the instrument manual. If the inspection result shows that the light source is too weak or too strong, It is necessary to replace the light source in time.
After eliminating these reasons, the detector should be inspected to determine whether it is working normally. However, it should be noted that the inspection of the detector is difficult, and the professional quality of the inspection personnel is required to be good. Therefore, if necessary, you can contact the manufacturer for a careful inspection.
Secondly, whether the gas chamber is polluted will directly affect whether the optical mirror can be used normally. If the pretreatment system has congenital defects or fails to work normally, causing dust and water vapor to enter the gas chamber, it will seriously affect the scientificity and accuracy of the measurement results. To solve this problem, the gas chamber should be thoroughly cleaned with clean water first, and then blown dry with compressed air.
