CORROSION RESISTANT PRESSURE MODULE FOR PROCESS FLUID PRESSURE TRANSMITTER

摘要

A pressure sensor module for a process pressure transmitter is provided. The pressure sensor module includes a first member formed of a metal suitable for exposure to seawater. The first member has a passageway extending therethrough. An isolation diaphragm (50) is coupled to the first member and has a first side configured to contact a process fluid and an opposite side in fluidic communication with the passageway of the first member. A second member is formed of a different metal than the first member and is mechanically coupled to the first member to define a chamber that is fluidically coupled to the passageway. A pressure sensor )40) is disposed to sense a pressure within the chamber. A seal is coupled to the first and second members to seal an interface between the first and second members.