The grounding ring for electromagnetic flowmeters should be considered standard equipment; shouldn’t all flowmeters come with one?
Thread Content
As the title suggests, an additional fee is actually required; the manufacturer advises that one should inform them if this is needed
Check the technical agreement or specification sheet to see if there are any requirements; the manufacturer will not voluntarily increase costs
This post was last edited by hanhaigang128 on 2023-10-17 at 11:20. Electromagnetic flowmeter manufacturers generally do not provide grounding rings; these rings are used to ground electromagnetic flowmeters when they are installed in lined pipes or non-metallic pipes. If the instrument’s specifications or technical agreement do not require it, the manufacturer will usually not include a grounding ring.
Each case must be analyzed on its own merits. For ordinary small-diameter electromagnetic flowmeters, a few manufacturers provide grounding electrodes or grounding rings as standard equipment, though these are limited to grounding electrodes or grounding rings made of less expensive materials. For large-diameter electromagnetic flowmeters, grounding electrodes or grounding rings are definitely not part of the standard configuration; they require an additional cost and are available as optional accessories. Some other conventional electromagnetic flowmeters for water transfer can do without ground electrodes or ground rings, as long as it is ensured that there are no electromagnetic interference sources at the locations where the pipelines and the electromagnetic flowmeter are installed.
For our large-diameter fire-fighting water hoses, we use Yokogawa’s built-in grounding rings
The material of the grounding ring must be specified in the data sheet or specifications; in fact, electromagnetic fields on metal pipes do not require a grounding ring