SIPART PS2 Smart, electropneumatic positioner, 4...20mA, HART, Ex/nEx, double-acting, polycarbonate enclosure, for pneumatic linear and part-turn actuators. Non-contacting (wear-free) position detection (NCS). Standard Without explosion protection. Connection thread el.: M20x1.5 / pneu.: G 1/4 Without limit monitor. Without option module. . 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 / Venting gauge block / Booster.