Electromagnetic flowmeter
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Dear seniors, I have a question. Electromagnetic flowmeters installed on-site may experience drift over time. In the past, when this happened, technicians would apply a 24-volt voltage directly to the excitation coil. What is the principle behind such an approach? When asked, the on-site technician couldn’t say for sure; he only mentioned that previous technicians did it in the same way. Additionally, apart from interference and poor grounding, are there any other possible reasons for drift in electromagnetic flowmeters?
I’ve never heard of such a shady trick before. Could you take a look and see if there are any clues in the manual of the electromagnetic flowmeter you are using?
None, I couldn’t find the answer, that’s why I came to the forum to ask experts for help!
I can help you transfer it to the instrument control section where there might be more discussions
Experience is sometimes harder to express than theory