Email Document Reference

Enter your email address below and the reference for this document will be sent to shortly from webmaster@ceesi.com.

Title: Ensuring A High Level Confidence In Sonic Nozzle Test Equipment Used To Certify Domestic Gas Meters
Author: A.J. Cockshott
Source: Flomeko 2016
Year Published: 2016
Abstract: he validation and verification of sonic nozzle test equipment are typically conducted on an annual basis. This involves the comprehensive calibration of multiple pressure, temperature and relative humidi ty t ransmitters, time measurement and the calibration of sonic nozzle factors to determine the overall system accuracy calibration. When manufacturing and certifying domestic gas meters to a very tight tolerance, it is common to utilise a check meter to ensure the continued accuracy of sonic nozzle test equipment since its last verification. Analysing the error percentage drift of the check meter over time, allows the organisation to determine the level of confidence of the test equipment between success ive equipment verifications. But when considering the uncertainty of the test equipment combined with the repeatability of a check meter, what variation in error percentage of the check meter does one consider acceptable?

In order to prevent spam and automated file downloads for documents within the Measurement Library, please follow the instructions below and then you will be able to email a reference to this article.