Conversion of Pt100-detector signal for 3 types of process signals. Typical applications are, where one wants to measure a temperature via a standard analogue input. The temperature converter has two ranges and in the lower range at -50-100° C it is possible to achieve a dissolution of more than 27 integer/° C on a 12 bit analogue input. An alternative is a Pt100 module for the PLC or a relatively expensive detector with a transmitter.