Fisher 3720 Electro-Pneumatic Valve Positioner with 4-20mA Signal, Corrosion Resistant Aluminum Alloy and Field-Reversible Action
منتوج وصف
Product Overview The Fisher 3720 is an electro-pneumatic valve positioner designed for use with diaphragm or piston rotary actuators. It consists of a 3710 pneumatic positioner combined with a 3722 electro-pneumatic converter. The converter receives a 4-20 mA DC input 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 can be used in single-acting or double-acting configurations. The action
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