As more gas wells are brought on line, the management of production volume becomes a challenge. While conventional flow computers meet all metering requirements, there is now a trend toward embedding this functionality in PLCs and RTUs, which are valued for their construction and control capabilities.

Bridging the gap is the Stardom FCN autonomous controller, which has been certified for use as a flow computer by Measurement Canada. The certification is based on the determination that the autonomous controller from Yokogawa Corp. of America, Newnan, Ga., has the same accuracy as a conventional flow computer, says the company.

Measurement Canada is an agency of Industry Canada, a department of the Canadian government. Charged with ensuring the integrity and accuracy of measurement in the Canadian marketplace, the agency is responsible for approving and certifying measuring devices for trade measurement in Canada. Devices subject to its approval are used to measure gas, electricity, mass, and volume, and are tested on criteria such as design, construction, marking, accuracy and sealing method.