Application Note

Improve Reliability And Decrease Alarm Count

Source: Endress+Hauser, Inc.

By Bill Sholette and Chris Fournet

Refinery-Application-WP01025F24EN0116-1

The purpose of this paper is to discuss how to decrease alarms due to redundant level devices not matching especially in applications with high pressure and/or high temperature. The importance of Gas Phase Compensation (GPC) and how it affects level readings of guided wave radar (GWR) devices is critical. The presence of polar gas also can have an effect on the accuracy of any GWR that does not have GPC when installed in applications where high temperature or pressure is present. This paper will discuss these issues and address how to overcome them.