Pressure transmitter with pressure sensor mount
AssigneeRosemount Inc.
InventorMark G. Romo
Life of this patent
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Abstract
A pressure transmitter with pressure sensor mount includes pressure measurement circuitry. A metal body of the pressure transmitter has a pressure coupling configured to couple to a process pressure. A pressure sensor is configured to provide an output related to an applied pressure to the pressure measurement circuitry. A conduit is coupled to the pressure sensor and configured to apply an applied pressure corresponding to the process pressure to pressure sensor. A non-conductive spacer is configured to electrically isolate the conduit from the metal body. The non-conductive spacer has an opening formed therein and is arranged to convey the applied from the metal body to the conduit.
Claims23
A pressure transmitter with pressure sensor mount, comprising:
- pressure measurement circuitry;
- a metal body of the pressure transmitter having a pressure coupling configured to couple to a process pressure;
- a pressure sensor configured to receive the process pressure and responsively provide a sensor output related to the process pressure to the pressure measurement circuitry the sensor output electrically coupled to the measurement circuitry;
- a conduit coupled to the pressure sensor configured to apply an applied pressure corresponding to the process pressure to pressure sensor;
- and
- a non-conductive spacer disposed between the metal body and conduit and configured to electrically isolate the conduit from the metal body of the pressure transmitter, the non-conductive spacer having an opening formed therein and arranged to convey the applied pressure from the metal body to the conduit.
A method of coupling a pressure sensor in a pressure transmitter to a process fluid pressure, comprising:
- receiving the process fluid pressure;
- conveying the process fluid pressure to an electrically isolated pressure sensor through a metal body of the pressure transmitted, a conduit and a non-conductive spacer, the metal body having a pressure coupling configured to couple to the process fluid;
- and
- coupling the conduit to an opening in the non-conductive spacer.
Dependencies are inferred from the claim text.