The BACT241 accepts AC current from current transformer or direct load current ranging from 0.5A up to 10A. Standard output is 4 – 20mA with a minimum supply voltage of 7.5V. This enables the BACT241 to be used in 12V battery systems. Other factory set output configurations are 10 – 50mA loop powered and 0 – 10mA, 0 – 20mA or voltage output in 3-wire connection. Double surge protection is standard with all Series 200 loop powered transmitters to prevent failure due to spikes induced by DC switched inductive loads. Input output relation can be direct or reverse acting. Input output isolation up to 2kV is achieved through the use of an internal current transformer. Base calibration is set with 2 metal film resistors and removable coding plugs on the main board. These links provide a convenient and user-friendly means of changing the input range in the field from 0 – 1 Amp to 0 – 5 Amps. Any other 2 ranges are available upon request. Final calibration is trimmed using the front accessible zero and span 15-turn trim adjustments. A front mounted L.E.D. and a test socket verifies module function and assist in calibration checks without disconnection of output wires.