The Fairchild T-5223-04 is an electric-to-pneumatic transducer that converts a 4-20 mA electrical signal into a proportional pneumatic pressure. It features a 1:3 output ratio and provides a pneumatic output in the 9–45 PSIG range. This device is used in process control and automation to drive pneumatic actuators from standard 4-20 mA current loops.
