Xylem Rule-Mate 500 Manuel D'instructions page 4

All potential sources of ignition located in spaces containing gasoline powered
machinery or gasoline fuel tank(s), or joint fitting(s), or other connection(s), between
components of a gasoline system, shall be ignition protected in accordance with the
requirements of ISO 10133, ABYC E-11, AC and DC Electrical Systems On Boats.
The electrical wiring, connections, and installation shall be in accordance with the
requirements of ISO 10133, ABYC E-11, AC and DC Electrical Systems On Boats.
Rule-Mate Intelligence
Rule-Mate bilge pumps have built-in programming that can sense when the pump is
running but not pumping water to protect the pump, vessel, and the vessel's batteries.
If debris fouls the sensor or the pump becomes air-bound, the pump will stop running
and begin to "check" for water every 2.5 minutes. Once the debris is removed, the
pump will revert to its normal operation, turning on when the water reaches approxi-
mately 2.5" (63.5 mm) and shutting off at 5/8" (16 mm).
Our Rule-Mate bilge pumps contain a fail-safe back-up program that measures the
amount of work the motor is performing and the length of time the motor is running.
If debris, such as a wet paper towel or leaves, became lodged against the pump, it
could "trick" the pump into thinking water remained in the bilge which could deplete
the vessel's battery.
If the circuit board senses the motor is running but doing little work (not pumping
water) for longer than fifteen seconds, the pump will enter into a cycling mode in
the same fashion as the computerized pumps. The pump will sense water every
2.5 minutes and if it senses water, it will continue to run until the water has been
removed from the bilge.
After the debris is removed, the pump will automatically revert to the level sensing
mode.
CAUTION: Disconnect power from the system before working on the
unit to avoid personal injury, damage to the surrounding environment
and/or damage to the unit.
CAUTION: Always install proper fuse size to prevent damage to product
should a short occur. Failure to install proper fuse could increase risk of pump
malfunction, potentially resulting in personal injury and/or fire hazard.
CAUTION: Keep all wire connections above the highest water level.
Wires must be joined with butt connectors and a marine grade sealant to
prevent wire corrosion.
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