Reducing Fiscal Metering System Flow Metering Uncertainty

by , | Dec 1, 2020 | Flow

Jim Cahill

Jim Cahill

Chief Blogger, Social Marketing Leader

Emerson’s Karl Stappert presents Smart Meters and Prover Technology Advancements Reduce Uncertainty at the Emerson Exchange Americas Virtual Series. Here’s his presentation abstract:

This session will discuss the advantages of applying smart flow metering technologies to reduce the operational uncertainty of a fiscal metering system and advancements in flow prover technology that improves the economics of proving smart meters.

Karl opened describing industry standards and regulatory agencies and their requirements for calibrating and validating measurement instruments used in fiscal and custody transfer applications.

He highlighted statistical process control concepts noting that all measurements vary. Improvements to reduce this variability depends on system design and management actions. Improvements cannot be accomplished if the equipment and the management of the equipment doesn’t allow for it.

Emerson Compact ProverTraditional flow technologies inherently increase system measurement variability and uncertainty. The meter factor changes with density, viscosity, flow rate, Reynolds number, temperature and pressure. The meter is also susceptible to wear, flow surges & pulsation, and dirty fluids in the process. A lack of diagnostics increases operating uncertainty for these meters.

Smart flow meters reduce measurement variability and uncertainty across process conditions. The proving process can also cause measurement uncertainties.

The Emerson Compact Provers reduce proving flow noise and improve prove repeatability with smart meters.

Karl described Emerson’s new generation of compact provers with reduced piston assembly weight which provides smoother cycling of the piston. Its larger diameter piston with a conical upstream shape reduces pressure drop and flow disturbances caused by the cycling of the piston.

Plantweb Advisor for MetrologyThe smart meter diagnostics enable robust process control methods for verifying overall system performance. Diagnostics combined with primary and secondary instrument measurements facilitate sophisticated verification analytics which provide effective and efficient system verification and predictive maintenance.

Plantweb Advisor for Metrology enables you to understand the health and risks of your measurement products and systems. With Plantweb Advisor for Metrology, you can save time and money by using its remote monitoring features, health assessment dashboards, and more.

Visit the Plantweb digital ecosystem section on for more on these and other operational analytics to drive improved performance.

Popular Posts


Related Posts

Subscribe for Updates

Follow Us

We invite you to follow us on Facebook, LinkedIn, Twitter and YouTube to keep up to date on all the latest news, events and innovations to help you take on and solve your toughest challenges.

Want to re-purpose, reuse or translate content?

Please do, Just link back to the post and send us a quick note so we can share your work. Thanks!

Our Global Community

Emerson Exchange 365

The opinions expressed here are the personal opinions of the authors. Content published here is not read or approved by Emerson before it is posted and does not necessarily represent the views and opinions of Emerson.