SCM7B35 isolated 2-wire transmitter interface modules with loop power accept input signals in the 4-20mA range from the field and provide a high-level voltage output to the process control system. Current to voltage conversion occurs internal to the module, which is factory calibrated to ensure the highest accuracy.

Loop power is provided by the SCM7B35 isolated 2-wire transmitter interface module, enabling a 2-wire transmitter to be directly connected without the need for a separate dc power supply for the 2-wire transmitter.

These SCM7B35 isolated 2-wire transmitter interface modules incorporate a five-pole filtering approach to maximize both time and frequency response by taking advantage of both Thomson (Bessel) and Butterworth characteristics. One pole of the filter is on the field side of the isolation barrier; four are on the process control system side.

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