Wireless communication adapter for field devices

摘要

A wireless process communication adapter is provided. The adapter includes a housing having a plurality of openings. An end cap is coupled to a first opening of the plurality of openings. A field device coupling is disposed at the second of the plurality of openings. The housing, end cap and field device coupling define a chamber therein. At least one circuit board is disposed within the chamber, the circuit board has wireless communication circuitry disposed thereon and is coupleable to a field device through the field device coupling. In one aspect, substantially all remaining volume in the chamber is filled with a solid material. In another aspect, an explosion-proof barrier is provided in the field device coupling. Combinations of the aspects are also provided.

主权项

1. A wireless process communication adapter coupleable to a field device, the wireless process communication adapter having:
a housing having a plurality of openings; an end cap coupled to a first opening of the plurality of openings; a field device coupling disposed at a second of the plurality of openings, the field device coupling configured to mount to a housing of the field device; wherein the housing, end cap and field device coupling define a chamber therein; at least one circuit board disposed within the chamber, the circuit board having wireless communication circuitry and being coupleable to a two-wire process communication loop and at least one additional wired connection coupleable to transmitter circuitry of the field device by a plurality of discrete wires passing through the field device coupling; and wherein the chamber is completely filled with a solid material; and wherein the field device coupling includes an explosion-proof barrier and wherein the explosion-proof barrier includes a pressure-blocking feedthrough.