The TD7800 series electro-pneumatic transducer is manufactured by Fairchild Industrial Products USA. It converts standard 4–20mA electrical control signal into proportional pneumatic output pressure ranging from 6 to 30 PSIG, with a maximum supply air pressure of 120 PSIG. Equipped with zero and span adjustment knobs for on-site calibration, it features an aluminum valve body and intrinsic safety FM explosion-proof certification, suitable for marine, petrochemical and other hazardous industrial environments. Widely used to drive pneumatic control valves, actuators and separators for precise process pressure regulation.
