Flow Measurement & Control


Thermal (mass) flow

August 2001 Flow Measurement & Control

Thermal flowmetering is a well-recognised and accurate technique for direct mass flow measurement, eliminating the need for temperature and pressure compensation. Sierra's smart thermal flowmeters are widely used in industrial gas flow applications. They measure mass flow directly, with only a single break into the pipeline, avoiding the need for a primary element with temperature and pressure compensation. They have excellent accuracy and repeatability with turndown ratios of 100:1. Available for flow velocities from 1 to 150 (normal) m3/s with excellent accuracy and repeatability, Sierra's unique validation process is most useful for ISO 9000 certification, because it eliminates the need for flow calibration.



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