The Loop-Powered Transmitter (LPT) joins the more than 20 loop-powered devices—from digital panel meters to controllers—made by Otek Corp. The LPT uses a patent-pending technique, along with ...
Galvanically (that is, optically or electromagnetically) isolated 4- to 20-mA current loops offer robust noise immunity and tolerate long cable runs. These advantages, combined with simple unshielded ...