4 channels, Converter for 2-, 3- and 4-wire RTDs (Pt100 ... Pt1000), slide wire sensors etc., Installation in Zone 2 or safe area, Simulation mode for service operations (forcing), Explosion protection: Ex ic, Field device: resistance thermometer, Field device [3]: slide-wire sensors, Field device [5]: potentiometer, Connection: 2-wire sensor, Connection [2]: 3-wire sensor, Connection [3]: 4-wire sensor