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I fell into a situation where I had to troubleshoot an ABB swirl meter on a steam application where clearly it was not giving the correct reading. It was deemed to be a Mass meter by virtue that it had temperature compensation via a Pt 100 sensor which was installed in the primary element. and when this was measured its resistance indicated a temperature significantly greater than what the steam pressure was (no it was not superheated).
A service engineer came and applied an offset in the transmitter electronics with the proviso that it may require further tweaking! I find this hard to believe that a Pt 100 which should correspond to accepted tables should require any sort of "fudge" factor please put my mind to rest.
A service engineer came and applied an offset in the transmitter electronics with the proviso that it may require further tweaking! I find this hard to believe that a Pt 100 which should correspond to accepted tables should require any sort of "fudge" factor please put my mind to rest.