To ensure the stable operation of online monitoring equipment, reduce equipment failure and improve the effective operation rate, this paper analyzes the quality assurance and control measures that we should take strictly from such aspects as the installation, operation, maintenance, calibration and comparison of the equipment, and puts forward auxiliary means for further verifying the accuracy of the data from online monitoring equipment. The results show that in the actual operation and maintenance work, we can discover and eliminate problems in operation in time and ensure the long-term standard operation of online monitoring equipment, provided we operate the equipment in strict accordance with technical specifications. 

Online monitoring equipment, quality assurance, operation and maintenance, equipment failure.

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