Skip to main content

VERIFYING FLOW METER ACCURACY: A COMPARISON OF APPROACHES, LESSONS LEARNED, AND BENEFITS BASED ON EIGHT YEARS OF FLOW METER ACCURACY TESTING

The full text article is not available for purchase.

The publisher only permits individual articles to be downloaded by subscribers.

or click here to sign up for a free trial

Abstract:

Flow meter accuracy is an important part of any utility's ability to manage its system. Even though a meter may test as being accurate under one set of conditions, it may have significant error under another set. This paper summarizes seven different techniques available to verify the installed accuracy of collection system flow meters, the lessons learned on the sources and effects of typical flow meter error, and the benefits of performing routine accuracy verification. It is based on eight years of meter verification work performed in Detroit, Ann Arbor, Genesee County, Oakland County, and the South Huron Valley Utilities Authority systems in Michigan; and the Pittsburgh and Philadelphia systems in Pennsylvania, including more than 600 independent flow meter accuracy tests on more than 150 collection system flow meters.

The seven techniques evaluated for flow meter accuracy verification are summarized in Figure 3. For each technique, the level of effort and costs required to perform each one, flexibility of use, expected accuracy, and objectivity information is indicated based on experience. Drawdown testing offers the greatest potential accuracy and most reasonable cost, but is limited to very few locations. Other commonly used techniques such as velocity profiling and use of a reference meter are not highly accurate or objective. Dye and trace dilution method ultimately offer the greatest flexibility and objectivity, and can be used in most cases where high meter accuracy is required.

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864705784291619

Publication date: January 1, 2005

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 These proceedings are not peer reviewed.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Ingenta Connect is not responsible for the content or availability of external websites
wef/wefproc/2005/00002005/00000004/art00033
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial 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