Understanding and managing pressure gauge monitoring and supervision
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In the previous hierarchical management of pressure gauges, there were descriptions regarding those used for monitoring and surveillance. How should monitoring and surveillance be understood? An example? How does your company handle similar situations? Thank you!
Personal understanding: Monitoring: Similar to a gauge point with control points. Monitoring: Instrumentation points that are only for display.
On October 10, 1988, the Ministry of Chemical Industry and the **Technical Supervision Bureau jointly issued the \"Provisional Measures for the Classification and Management of Measuring Instruments in the Chemical Industry,\" which classified such instruments into three grades: A, B, and C. In accordance with the appendix to this method, namely the \"Catalogue for the Graded Management of Measuring Instruments in Chemical Manufacturing Enterprises\", the grading and calibration frequency for pressure gauges used in chemical enterprises are as follows: Grade A: Pressure gauges used for safety protection must be calibrated at least once every six months. Class B: Pressure gauges used for process control, with a calibration interval corresponding to the maintenance period of the equipment. Class C: 1. Pressure gauges used for monitoring, with a calibration cycle of 1–2 years ； 2. The pressure gauge for monitoring does not require periodic calibration; it is replaced as soon as a fault occurs.
Well, my understanding was too superficial; I just interpreted it literally! Your version is more standardized. According to your standards, Class A pressure gauges need to be calibrated every three months, while Class B and C pressure gauges require inspection on a monthly basis; they must be replaced if damaged!