PROCESS FLUID PRESSURE SENSING ASSEMBLY FOR PRESSURE TRANSMITTERS SUBJECTED TO HIGH WORKING PRESSURE

摘要

A pressure measurement assembly (20) is provided. The assembly includes a pressure sensor mount (40) having an aperture (36) therethrough. A pressure sensor (52) passes through and is mounted to the aperture (36). The pressure sensor (52) has an electrical characteristic that varies with applied pressure. An isolator plug (50) is configured to be exposed to a process fluid. The isolator plug has an isolation diaphragm (64) disposed to contact the process fluid. A passageway (66) is fluidically coupled to the isolation diaphragm (64) to convey process fluid pressure from the isolation diaphragm (64) to the pressure sensor (52) through an incompressible fluid. The pressure sensor mount (40) is coupled to the isolator plug (50) and has a non-circular shape when viewed along an axis of the aperture.