| 摘要 |
A system for the automatic operation of a marine bilge pump is provided. The system comprises, in series, a fluid level detector, a fluid level discrimination circuit, and pump control circuitry. The fluid level detector uses an AC signal to determine when an unacceptable level of bilge water is present. The discrimination circuit determines when the fluid level detector is sensing a true level reading, as opposed to mere bilge water sloshing. If the water level is indeed too high, a bilge pump is activated. The system may be adapted for multiple pump operation. Furthermore, an emergency backup circuit, as well as alarms and a test circuit, may be added.
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