The 9468/32 HART analogue universal module for Zone 1 has eight channels which can be used separately for Ex i operation of 2-/3-conductor HART transmitters, 4-conductor transmitters or control valves/positioners with 0/4 to 20 mA signals. HART communication is bidirectional. All inputs/outputs are short-circuit proof, galvanically separated from the system and individually monitored to check for line faults.