The positioner works by measuring the current position of the valve and comparing it with the input signal from the process controller. It then sends an electrical signal to the valve actuator, adjusting its position to match the desired position. Positioners can also automatically compensate for variations in supply pressure and load, allowing for more precise control of the valve position.
Some key benefits of positioners include increased process efficiency, reduced downtime, improved product quality, reduced energy consumption, and enhanced safety. They also help minimize wear and extend the life of the valve, reducing maintenance costs.
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