Abstract: An automated process control prover system for (1) performing tasks, including tests, at the circuit loop termination on a termination base located between interconnected control room instrumentation and field equipment, (2) for performing tasks, including tests, to the circuit loop terminations at the control room instrumentation and field equipment locations and (3) for calibration of the field equipment. The prover system includes an improved termination base for allowing selective access to a predetermined number of the circuit loop terminations, a multiplexer for providing the selective access to one of the circuit loop terminations, and a computer for performing the tasks at the termination base.

Abstract: A delta-P transmitter generating a signal corresponding to the differential pressure produced by a primary element installed in a conduit through which a fluid flows, comprising the primary element and a transducer implanted in the primary element to generate a signal corresponding to the differential pressure with which may be combined the signals generated by a temperature transducer and/or an absolute pressure transducer to generate an output signal corresponding to the weight or mass rate of fluid flow.