Patent ID: 9702732
Date: 2017-07-11
CPC Classifications: G01D,G05B

Claim:
1. A process variable transmitter comprising: transmitter circuitry for determining a process variable from a sensor signal produced using a process sensor, the transmitter circuitry having at least one operating parameter; a wireless communication module configured to be powered by a two-wire process control loop and capable of communicating wirelessly with a general-purpose mobile device using a general-purpose wireless communication standard such that the wireless communication module can instruct the transmitter circuitry to change a value of the at least one operating parameter based on a wireless message received from the general-purpose mobile device; the process variable transmitter further comprises a power storage component providing additional power to the wireless communication module; and wherein the power storage component stores power from the two-wire process control loop when the wireless communication module is inactive and provides additional power to the wireless communication module when the wireless communication circuitry is active.