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Title: Basic Application Of Flow Computers And Telemetry Systems
Author: Martin Johnson
Source: 2012 International School of Hydrocarbon Measurement
Year Published: 2012
Abstract: Flow Computers have long been used as the cash register for both Hydrocarbon liquid & gas measurement. One of the first microprocessor based flow computers was the 7900 series introduced by Solartron back in 1975 and whilst the functionality of these early flow computers was limited, their primary function has remained the same for the last 30 years or more to accurately compute the amount of gas or liquid that has flowed through the associated flow meter(s).This amount may be expressed in terms of actual volume but is usually required to be calculated in either standard volume (expressed at a given temperature and pressure such as 14.696 psia and 60oF or 1013.25 mBarabs & 15oC ), mass or energy, while adhering to the required National & International Standards The essential inputs to the flow computer are typically flow (volume or mass), pressure, temperature and often density or fluid composition. The essential outputs are the afore mentioned flow totals, which traditionally would be printed in a daily report at a

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