Claims
- 1. An in-line pressure transmitter for sensing an absolute or gage process pressure of a process fluid, comprising:
a pressure sensor configured to sense the process pressure; transmitter circuitry coupled to the pressure sensor configured to provide an output related to the sensed process pressure; a single isolation diaphragm assembly configured to isolate the process fluid from the pressure sensor; a transmitter housing containing the pressure sensor, transmitter circuitry and isolation diaphragm assembly; and an in-line process coupling integral with to the housing having a mounting member which includes a substantially flat mounting face and a bore generally aligned with the isolation diaphragm assembly, the mounting face including a depression around the bore to receive a seal, the mounting member including at least two bolt holes extending therethrough which extend generally parallel with the bore.
- 2. The in-line pressure transmitter of claim 1 wherein the in-line process coupling is welded to the housing.
- 3. The in-line pressure transmitter of claim 1 wherein the bolt holes are spaced a substantially equal distance from the bore.
- 4. The in-line pressure transmitter of claim 1 wherein centers at the bolt holes are spaced about 1.626 inches apart.
- 5. The in-line pressure transmitter of claim 1 wherein the bore is threaded and configured to receive a threaded process connection.
- 6. The in-line pressure transmitter of claim 1 wherein the in-line process coupling includes a block valve to block the bore.
- 7. The in-line pressure transmitter of claim 1 wherein the in-line process coupling includes a vent valve configured to vent the bore.
- 8. The in-line pressure transmitter of claim 1 wherein the mounting member includes four bolt holes spaced substantially equal distance from the bore.
- 9. The in-line pressure transmitter of claim 1 wherein the transmitter circuitry is configured to couple to a two-wire process control loop.
- 10. The in-line pressure transmitter of claim 1 wherein the pressure sensor is configured to measure gage pressure.
- 11. The in-line pressure transmitter of claim 1 wherein the pressure sensor is configured to measure absolute pressure.
Parent Case Info
[0001] The present application is based on and claims the benefit of U.S. provisional patent application Serial No. 60/242,940, filed Oct. 24, 2000, the content of which is hereby incorporated by reference in its entirety.
Provisional Applications (1)
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Number |
Date |
Country |
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60242940 |
Oct 2000 |
US |