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Why does the 9013FSG2J99M4 trip on very slow loss of pressure? The switch works great while the system is in active service but quits working if there is no water being used.

The switch doesn`t acknowledge a slow drop in pressure over several hours!. An application where the system is inactive for long periods requires a switch that doesn`t have the M4 lockout on it . ᅠThis response is inherent in the design of this switch. and cannot be adjusted out if the pressure drop is very slow.


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