The BACT284 is a isolating transmitter that measures ac voltage or ac current. Input spans up to 1000V or 10A can be manufactured. The input is conditioned rectified and then scaled by an isolating transmitter with a link selectable output providing true 3-way galvanic isolation up to 2000V rms. A wide range ac/dc power supply powers the input and the output circuit with three way power/input/output isolation (There are no separate supply terminals on the signal powered version). Final calibration is trimmed using the front accessible ZERO and SPAN 15-turn trim adjustments. The output signal level is indicated by a green LED on front giving a clear indication of module function. Reverse or direct action are factory configured. Special requirements for input/output response time variation can be accommodated by the customised response time option.