Pneumatic Positioner or Pneumatic Position Transmitter
The pneumatic positioner is an instrument used in control valves, or other devices that are acted by a pneumatic motor or a diaphragm. It is mainly used as a linking element between a pneumatic pressure controller and a pneumatic actuator, to assure an exact positioning of the actuator's stem (or the valve) proportional to the signal received from the pneumatic controller.
Input Signal Range: 3 –15 psi(g); 5 – 25 psi(g) or 6 – 30 psi(g).
Output Signal Range: The pressure required by the actuator, this signal will be as a maximum up to 95% of the supply signal.
It has three control characterized cams (A, B and C).
May be configured to work in split range.
Action easily changed between direct or reverse action.
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