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Certifying Coriolis Meter Accuracy

by | Sep 3, 2019 | Measurement Instrumentation

Jim Cahill

Jim Cahill

Chief Blogger, Social Marketing Leader

While the Emerson Exchange 365 global user community has a very vibrant forum for DeltaV distributed control system (DCS) users, there is also some great knowledge sharing happening in many of the other areas such as the Measurement Instrumentation, Valves, Actuators & Regulators, and other discussion forums in the Control & Safety Systems groups to name just a few.

I wanted to share this recent post, periodic certification, from the flow measurement forum. The question:


I have a question about Coriolis f300 & 2700R12ABZEZZZ & 475 Field Communicator:

Do these devices need to certify periodically?

Emerson’s Tonya Wyatt, whom you may recall from several earlier posts, shared back [I’ve added in some hyperlinks for reference to additional information]:

The Coriolis meter does not drift over time, so should not have any changes with use. However, there are sometimes regulatory reasons in your area or other reasons (for example, proving is common in the oil & gas industry) you might need to check your meter.

If you need to verify the reading, you can do that in a variety of ways. If you have Smart Meter Verification on your transmitter (2700 transmitter), you can check the meter using this diagnostic. If you do not have Smart Meter verification, you can check to see if there are any alarms present using the 475 Field Communicator. You can prove the meter against a proving standard like a ball prover or compact prover. You can also do a quick field verification of the flow reading using either a check meter in line with the F300 or doing a “catch and weigh” procedure. Basically, if you can safely use a fluid through the meter like water and reset the totalizer before you begin flowing the water, you can put some water through the meter, then into a container. When you are through, weigh how much fluid you have in the container (the weight of the container plus the water minus the weight of the empty container) and compare it to the totalizer reading on the 2700. You can also return the meter to the factory for a calibration check.

For further information, please contact our customer service group at [email protected]. You can also visit emerson.com and go to the contact us page to find an office close to you for support.

If you have Emerson technology in your manufacturing and production operations, you definitely want to join the Emerson Exchange 365 community and join the groups in your areas of interest. You’ll find other customers, Emerson Impact Partners and Emerson Experts exchanging knowledge to help everyone in the community better develop their skills and improve productivity.

You can also connect and interact with many of the experts we feature in the posts at the September 23-27 Emerson Exchange conference in Nashville.

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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.