Skip to main content

Flow Meter Technology Assessment: A Three–Year Evaluation of Seven Common Meter Technologies found in the DWSD Collection System

Buy Article:

$9.50 plus tax (Refund Policy)

Or sign up for a free trial

A highly accurate dye dilution testing protocol using Rhodamine WT was developed and used to quantify flow meter accuracy in the Greater Detroit Regional Sewer System. Over 150 tests were performed on 37 flow meters in conjunction with a set of good metering practice principles. A summary of the accuracy for each of the seven technologies tested observed before and after good metering practice is given. Also presented is a summary of flow meter manufacturer presentations hosted to explore accuracy issues and proper application of six commonly used technologies. The seven technologies assessed are electromagnetic induction meters (magmeters); full-conduit, multiple-path, transit-time meters; full-conduit, single-path, transit-time meters; openchannel, multiple-path, transit-time meters; open-channel, ultrasonic meters; flumes; and weirs. Many meters that are typically considered to be accurate had errors of more than 30%. Some meters had errors that exceeded 70%.

Overall, the average initial system accuracy for system meters was observed to be ±15.0% of measurement with an overall bias of 6.1% (under-predicting flow). After implementing the good metering practice principles, and in particular using dye dilution testing as a diagnostic tool, the average accuracy potential observed for the system reduced to ±5.5% of measurement, with an overall bias of 0.6% (under-predicting flow). It is concluded that: 1) there are observable accuracy differences between flow meter technologies, 2) objective standards like dye dilution testing are critical to good metering, 3) verifying installed accuracy is important, even for technologies considered to be highly accurate, and 4) the simplest technology that can be used is often the best.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Data/Media
No Metrics

Document Type: Research Article

Publication date: 2000-01-01

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    A subscription to the Proceedings of the Water Environment Federation includes access to most papers presented at the annual WEF Technical Exhibition and Conference (WEFTEC) and other conferences held since 2000. Subscription access begins 12 months after the event and is valid for 12 months from month of purchase. A subscription to the Proceedings of the Water Environment Federation is included in Water Environment Federation (WEF) membership.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access. Access begins 12 months after the conference or event
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Learn about the many other WEF member benefits and join today
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more