SIPART PS2 Smart, electro-pneumatic positioner, 4...20mA, Ex/nEx, double acting, polycarbonate case, for linear and partial revolution pneumatic actuators. Non-contact (wear-free) position detection (NCS). Standard Without explosion protection. Connection thread el.: M20x1.5 / pneu.: G 1/4 Without limit switch monitor. Analog input module (AIM) for connecting external position detection systems, such as NCS sensor, 6DR4004-1ES/2ES/3ES/4ES position transmitter or other sensors. Internal position detection is not applied but can be ordered additionally with -Z K11 and/or K12. M12 device connector optionally orderable with -Z D54. Short instructions in English /German / Chinese. Standard /Fail-Safe - Actuator depressurization in case of interruption of the auxiliary power supply (single acting only). G¼ aluminum pressure gauge block, double acting with IP31 plastic pressure gauge (MPa, bar)