The potential separator/signal converter is used for separating analog signals in the range from 0 to 10 V DC and 0 to 20 mA DC or for signal conversion from 0 to 10 V DC to 0 to 20 mA DC or 0 to 20 mA DC to 0 to 10 V DC. The input and output signals as well as the supply voltage are mutually isolated. An input signal 0 to 10 V or 0 to 20 mA can optionally be connected to the device. Function potential separation: In PT-C12 230, the input signal 0 to 10 V is proportional to the output signal 0 to 10 V. The PTi-C12 230 equals the input signal 0 to 20 mA proportionally to the output signal 0 to 20 mA. Function Signal conversion with potential separation: In a signal conversion from 0 to 10 V to 0 to 20 mA or 0 to 20 mA to 0 to 10 V, the converted output signal can be readjusted by means of integrated spindle trimers. In addition, a hand emergency operating level with HAND-AUTO switch with feedback contact is integrated. Not applicable