SIPART PS2 Smart, electropneumatic positioner, 4...20mA, Ex/nEx, single-acting, aluminum enclosure, flameproof (Ex d), for pneumatic linear and part-turn actuators. Non-contacting (wear-free) position detection (NCS). Standard Type of protection (Ex): Flameproof enclosure (Ex d), Dust ignition protection by enclosure (Ex t). Connection thread el.: M20x1.5 / pneu.: G 1/4 Without limit monitor. Analog Output Module (AOM), analog position feedback 4 ... 20 mA. 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.