Type AV Characterizable Pneumatic Positioners are control devices that satisfy a wide range of applications. These ABB positioners provide fast, sensitive, and accurate positioning of pneumatic signal or double-acting, linear or rotary motion actuators. A mechanical connection from the actuator to a position feedback cam in the positioner establishes actual position. Three characterized segments on one cam provide application flexibility by establishing various relationships between input signal and actuator position. The relationships provided by the segments are square foot, linear, and square.
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