Functional engineering, functional objects and the ...

There are plant owners that want them to be tagged like any other instrument item, such as PG-101, PG-102, etc, but there are also plant owners that want ALL gauges with the same range tagged with that range, e.g. all pressure gauges with a range of 0-10 barg are to be tagged PG10. They are then considered to be interchangeable commodity items. ................
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