Regarding instrument loop testing
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I would like to ask whether the instrument loop test needs to be performed as well after the routine maintenance and calibration of the transmitter A few experts from the company came to prepare test records for the instrument circuit after verifying the transmitters. . Is it still needed after this thing is put into use? Seeking advice. . .
Loop check? Just use Hart 475 for communication and proceed with it; the DCS will display the values. It’s very simple
Experts say it’s necessary; it’s basically something that must be done before starting work. I’ve actually never done it before
If doing it once confirms there are no problems, then there’s no need to do it again. But if the experts say to do it, then we just have to do it; we can’t make any decisions or change the outcome.
Article 2 of Part 1 of the Instrumentation Hazard Inspection Form in the \"Guidelines for the Identification and Rectification of Accident Hazards in Hazardous Chemical Enterprises\" (Safety Supervision Administration Order No. San103): The records of instrument calibration, maintenance, and testing must be complete; these mainly include: 1. Records of regular calibration of instruments and circuit debugging； 2. The inspection records for measuring instruments and control systems, as well as maintenance records, are complete. It’s necessary to check; if there are discrepancies, corrections need to be made, but I don’t even know how to make those corrections