< 4-channel
< Inputs Ex ia
< Mounting in Zone 2, Class I/Div.2 or in the safe area
< Power supply for 2-wire transmitters with 4 mA ... 20 mA
< Supply circuit 15 V (20 mA)
< Input from active signals of 4-wire transmitters
< HART communication via field bus or service bus
< Simulation mode for service operations (forcing)
< Line fault detection (LFD): one LED per channel
< Permanently self-monitoring
< Module can be exchanged under voltage