THERMOELECTRIC HEATING, COOLING AND POWER GENERATION FOR DIRECT MOUNT AND DUAL COMPARTMENT FILL REMOTE SEAL SYSTEMS

摘要

A pressure transmitter assembly for measuring a process pressure of an industrial process includes a pressure sensor configured to sense the process pressure. A process coupling couples the pressure sensor to the industrial process using an elongate housing with a fill fluid capillary. In one example configuration, at least one thermoelectric element is included within the elongate housing to apply heat to, or conduct heat away from, the process coupling in response to an applied electric current or signal, allowing fill fluid to be preheated to facilitate cold startup or calibration, and providing cooling of the process coupling during high temperature operation.

主权项

1. A process coupling for coupling a process variable transmitter to a process fluid of an industrial process comprising:
an elongate housing having a process mount configured to couple to the process fluid and an opposed transmitter coupling configured to couple to the process variable transmitter; a capillary in the elongate housing which conveys a process pressure at the process mount to the transmitter coupling; at least one thermoelectric element configured to apply heat to, or conduct heat away from, the process coupling in response to an applied electric signal.