Conductive polymer reference connection for magnetic flowmeter
An electromagnetic flowmeter assembly is provided. The assembly includes a magnetic flowmeter configured to couple to a process pipe at a coupling point and measure a flowrate of a flow of process fluid. The assembly includes a conductive polymer reference connection configured to contact the process fluid and provide an electrical connection to magnetic flowmeter electronics.
1. An electromagnetic flowmeter assembly comprising:
a magnetic flowmeter configured to couple to a process pipe at a coupling point and measure a flowrate of a flow of process fluid, the magnetic flowmeter having flowmeter electronics, a liner, and a pair of electrodes coupled to the flowmeter electronics and being disposed to measure an electrical characteristic of the process fluid flowing through the liner;
a conductive polymer reference connection spaced from the pair of electrodes and configured to contact the process fluid, the conductive polymer reference connection being coupled to the flowmeter electronics;
wherein the conductive polymer reference connection comprises a conductive polymer section molded into the liner of the magnetic flowmeter; and
wherein the conductive polymer reference connection comprises a ring and wherein the conductive polymer reference connection comprises a central aperture configured to reduce a line size between the process pipe and the magnetic flowmeter.