Q91. Are orifice, venturi, and nozzle flow meters required to have temperature and total pressure transmitters located on the flowmeters?

A91.  For orifice, nozzle and venturi flow meters, the use of representative values for temperature and total pressure is allowed in situations where there are no existing transmitters to measure these parameters at the flow meter location. Rather than requiring additional transmitters to be installed and calibrated in close proximity to the flow meter, reporters shall apply suitable correction factors to temperature and/or total pressure readings made at a remote location (or locations), to represent conditions at the flow meter. (See §98.3(i)(3)(ii).)

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Source: This question and answer was derived from a Legacy FAQ

Approval / Publishing History: Version 1

Expiration: none

Relevant Subparts: Subpart C
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