|Hydraulic Filters
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What is the function of the differential pressure indication switch of the FH series?
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The indicator switch allows you to determine when the element needs to be replaced via a signal.
When the element is clogged and the differential pressure between the inlet and outlet sides increases, the switch is activated, and at the same time, the red ring will float in the indicator window. Replace the element when this happens. Once the flow stops, the signal and red ring will return to their original states.
If signal retention is required, take action in the control circuit.
The differential pressure at which the switch operates depends on the filter specifications.