October 2011


Improve material balance by using proper flowmeter corrections

Here are guidelines to increase accuracy for flow measurements

Peramanu, S., Wah, J. C., Canadian Natural Resources Ltd.

Process plants frequently encounter mass imbalances. These can be attributed to various factors, but often they lead back to inappropriate measuring devices, improper calibration, incorrect installation or incorrect interpretation of the measured flows. There are well-established guidelines available to ensure appropriate flowmeter selection based on the process conditions and control requirements. Instrument vendors follow the industry standards and approved procedures for flowmeter calibration, calculating the calibration factors based on the data provided in the flowmeter specification datasheets. Engineering and construction service contractors often follow vendor guidelines and stan

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