SIPART PS2 smart electropneumatic positioner for pneumatic linear and part-turn actuators; 2-wire; 4...20mA with HART-interface; single acting; Enclosure stainless steel, flame-proof . Type of protection (Ex): Flameproof enclosure (Ex d), Dust ignition protection by enclosure (Ex t) Connection thread: el.: M20x1,5 mec.: 1/4 inch NPT Without Analog Output Module (AOM), analog position feedback 4 ... 20 mA . Brief instructions English / German / Chinese Fail to Open - Pressurizing of the actuator in case of failure of electrical auxiliary power Manometer block stainless steel 316 ¼‑18 NPT, single-acting with SST manometer IP54 (MPa, bar, psi) Monitoring of the device/user-specific min./max. supply pressure PZ. Hold position on demand. Valve Signature, Partial Stroke Test, monitoring of leakage and actuating pressure (triggered), actuating pressure limitation for single acting. Messages according to Namur NE107.