Measuring apparatus for response time of differential pressure gauge

Abstract

Abstract PURPOSE:To be able to measure response time of a differential pressure gauge without stopping operation of a plant, by a method wherein a electromagnetic switching valve and a time measuring means are provided in a detecting tube to which a differential pressure gauge is connected. CONSTITUTION:In normal condition, a switching valve 19 is closed and a switching valve 21 is opened according to the command given by a time measuring means 15. Differential pressure of fluid is measured by a differential pressure gauge 11, while a fluid flows through an orifice 3. For measuring the response time of the differential pressure gauge 11, the time measuring means 15 applies an open command signal to the switching valve 19 so as to open the valve 19. The time measuring means 15 detects the time when the open command signal was applied, and the time when the output of the differential pressure gauge 11 is ''0'', and thus, the response time of the differential pressure gauge 11 is measured.

Inventors

• 👤 Isao Takami
• 👤 高見　勲
• 👤 Shozo Taguchi
• 👤 田口　省三

Bibliographic Details