Eagle Electronics 250 DS, 250 DF manual

In saltwater environments we recommend you connect the power cable to the auxiliary power switch included in most boat designs. If that results in electrical interference, or if such a switch is not available, we recommend connecting direct to the battery and in- stalling an inline switch. This will let you shut off power to the power cable when the unit is not in use. When you are not using the unit, you should always shut off power to the power cable, es- pecially when the power cable is disconnected from the unit.

To unit	Optional power off switch
	for saltwater installations
	Black wire
	12 volt	Red wire with
		3 amp fuse
	battery

Power and transducer connections for sonar units (direct battery connection shown).

WARNING:

Do not use this product without a 3-amp fuse wired into the power cable! Failure to use a 3-amp fuse will void your warranty. This product must be independently fused with the enclosed 3-amp fuse (or equivalent), even if you connect to a fused accessory or power buss. If a malfunction happens inside the unit, extensive damage can occur if the enclosed fuse is not used. As with all elec- trical devices this unit could be damaged to a point that it is unrepairable and could even cause harm to the user when not properly fused.

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