Sipart Ps2 Smart Electropneumatic Positioner For Pneumatic Linear And Part-turn Actuators; 2-wire; 4...20ma With Hart-interface; Single Action; Polycarbonate Enclosure Standard Without Explosion Protection. Connection Thread El.: 1/2" Npt / Pneu.: 1/4" Npt Without Limit Monitor. Analog Output Module (Aom), Analog Position Feedback 4 ... 20 Ma. Device Plug M12 Optionally Orderable With -z D53. Isolating Power Supply Sitrans I100 Separately Orderable (7ng4124-1aa00). . Brief Instructions English / German / Chinese. Standard / Fail-safe - Depressurizing The Actuator In Case Of Failure Of Electrical Auxiliary Power (Single Acting Only). Without Manometer Block / Booster.