Patent ID: 6675655
Filing Date: 2004-01-13
Classification: G01L

Abstract:
A process transmitter for measuring a process pressure, comprising:a pressure sensor; a sensor housing having a face configured to be exposed to process fluid, the face includes a face step; a fill fluid capillary tube which couples fluid from the pressure sensor to the face; an isolation diaphragm which isolates fill fluid in the capillary tube from the process fluid; a diaphragm weld which attaches the isolation diaphragm to the face step offset from a plane of the diaphragm; and a process fluid seal which seals a process fluid connection to the face of the sensor housing to thereby couple process fluid to the isolation diaphragm, the process fluid seal spaced apart in a direction perpendicular to a plane of the face from the diaphragm weld to reduce stress on the diaphragm from the process fluid seal due to a mounting force.