Patent ID: 9606146
Date: 2017-03-28
CPC Classifications: G01R

Claim:
1. A system comprising: a multimeter having a housing, a pair of clamp portions, and a wireless transceiver, wherein at least one of the clamp portions is movably attached to the housing such that the pair of clamp portions are positionable around an electrical conductor, wherein in operation the clamp portions produce a first signal representative of current flow in the electrical conductor, and wherein the wireless transceiver wirelessly transmits information corresponding to the first signal; a Rogowski coil sensor unit separate from the multimeter, wherein the Rogowski coil sensor unit includes a Rogowski coil that produces a second signal representative of current flow in an electrical conductor surrounded by the Rogowski coil, and a wireless control unit coupled to the Rogowski coil that wirelessly transmits information corresponding to the second signal; and a remote control apparatus separate from the multimeter and the Rogowski coil sensor unit, wherein the remote control apparatus is operable to directly communicate with the multimeter and the Rogowski coil sensor unit via wireless communication to the receive the information corresponding to the first and second signals and to send control signals to the multimeter and the Rogowski coil sensor unit, and wherein the wireless transceiver of the multimeter is further configured to receive the information transmitted by the wireless control unit corresponding to the second signal produced by the Rogowski coil.