in reply to: switch closure to HART posted by Bryan Inkster on 15 December 2011 at 18:17:08.
I have to connect one of our sensors to a HART system. The sensor provides a simple contact closure when triggered and has no adjustments or settings. I do not want to add a microprocessor and modem to this simple sensor because it would complicate it and reduce the reliability and I certainly don't want to go through the Hart approval and membership process. Is there a simple, approved, HART interface module which takes in a contact closure and provides connection to a HART master?