Filter monitoring system

Details Filter monitoring system Filter monitoring system

G - Physics

08

B

340/102, 325/47

G08B 21/00 (2006.01) G01P 13/00 (2006.01)

Patent

CA 1195403

FILTER MONITORING SYSTEM Abstract of the Disclosure A fluid filter monitoring system includes a filter relief valve movable in response to a pressure buildup caused by filter clogging to sequentially actuate a pair of pressure operated switches. A temperature sensor senses the temperature of fluid in the hydraulic system. A control unit, including a microprocessor, controls the energization of a plurality of indicators, depending upon the status of the temperature sensor, the pressure-operated switches and the duration of actuation of the switches.

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