Pneumatic Positioner G 1/4 intelligent electropneumatic, 4...20mA (3/4 thread), HART, Ex/nEx, double-acting, . aluminum housing, for pneumatic linear and part-turn actuators. Standard Protection type (Ex): Intrinsic safety (Ex i). SITRANS I200 output isolator can be ordered separately (7NG4131-1AA00). Without limit monitor. Analog Output Module (AOM), analog position feedback 4...20 mA. M12 device connector can be ordered as an option with -Z D53. Power supply for SITRANS I100 isolation can be ordered separately (7NG4124-1AA00). Short instructions English / German / Chinese. Standard / Fail-Safe - Depressurization of the drive in the event of failure of the auxiliary power supply (single-acting only). Without Venting gauge block / Booster.