The potential isolator / signal converter is used to separate analog signals within a range from 0 to 10 0 V DC and 0 to 20 mA DC, or for signal conversion from 0 to 10 V DC to 0 mA DC, or 0 to 20 mA DC to 20 to 10 V. DC The input or Output signals as well as the supply voltage are isolated against each other. An input signal 0 to 10 V or 0 to 20 mA can be connected to the device. Potential separation function: With PT-C12, the input signal 0 to 10 V is proportionally matched to the output signal 0 to 10 V. The PTI-C12 balances the input signal 0 to 20 mA proportionally to the output signal 0 to 20 mA. Signal conversion function with potential separation: With a signal conversion from 0 to 10 V on 0 to 20 mA or 0 to 20 mA on 0 to 10 V, the converted output signal can be adjusted by means of integrated spindle trimmer. In addition, a manual emergency operating level is integrated with MANUAL auto switch with feedback contact. The output signal 0 to 10 V or 0 to 20 mA can be set MANUALLY