The single channel VEGATRENN 151 is used for galvanic separation of intrinsically safe applications as well as signal transmission of Ex-approved 4 … 20 mA sensors in hazardous areas. The separator is ideal in conjunction with controllers without own Ex approval. The VEGATRENN 151 is suitable for bidirectional transmission of HART signals. The HART signal can be picked off via the HART communication sockets integrated in the front or the terminals. The complete HART permeability allows complete access to the sensor settings.