Transmitter with moisture draining housing and improved method o

Details Transmitter with moisture draining housing and improved method o Transmitter with moisture draining housing and improved method o

1994-08-11

1996-08-20

Chilcot, Richard

Measuring and testing

Instrument casing

738665, 191 26, 312229, G01D 1130

Patent

active

055468047

ABSTRACT:
A transmitter transmitting a sensed process variable over a conductor includes a cylindrical housing having a terminal compartment and an electronics compartment separated by a bulkhead. The terminal compartment used for conductor connection is subject to moisture accumulation. An access channel fully intersects an internal surface of terminal compartment such that the access channel drains moisture from the terminal compartment across a range of mounting orientations. The transmitter includes a circuit in the electronics compartment for compensating a process variable and providing the compensated process variable via a feedthrough circuit assembly in the bulkhead, which in one embodiment, includes an encapsulated radio frequency interference filter, to terminals in the terminal compartment for coupling to a conductor that is connected to an external controller.

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Product Manual: "Model 2088 Absolute or Gage Pressure Transmitter," Rosemount Inc., Eden Prairie, MN, Jan. 1993.
Appendix A: Photographic views of Rosemount Model No. 3044 transmitter showing conduit configuration.
Appendix B: Photographic views of Rosemount Model No. 2088 transmitter showing terminal block electronics and RFI filters.
Appendix C: Photographic Views of Rosemount Model No. 2024 transmitter substantially as shown in Figure 1 of the pending application.

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