Fisher 3720 Electro-Pneumatic Valve Positioner with 4-20mA Signal for Modulating Control and Corrosion Resistant Construction
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Product Overview The Fisher 3720 is an electro-pneumatic valve positioner for diaphragm or piston rotary actuators. It combines a 3710 pneumatic positioner with a 3722 electro-pneumatic converter. The converter accepts a 4-20 mA DC signal and produces a proportional pneumatic output (0.2 to 1.0 bar / 3 to 15 psig) that drives the pneumatic positioner stage. The 3720 works in single-acting or double-acting configurations. Action can be switched between direct and reverse in
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