universal signal converter / galvanically-isolated
Signal converter 641 is designed to convert standard process input /output signals. Current inputs 0/4..20 mA can be converted into voltage outputs, -10.. 10 V can be converted to 0..10 V, low mV inputs can be converted to standard outputs etc. Signal converter 641 accepts 2-wire transmitters without separate power supply. Potentiometer input as a standard.
Galvanic isolation is made at the same time with the convertion. Galvanic isolation cuts the noise signals which may exist when using low voltage signals, f.ex. thermocouples.