Lowrance lms-480df 产品宣传册
3
Powering Your Display Unit
The display unit works from a 12-volt DC battery system. Attach the
display power cable (with provided 3-amp fuse) to an accessory switch
or power bus. If this results in electrical interference, connect direct to
a battery but install an in-line switch on the cable.
Caution:
Caution:
We strongly recommend that you shut off the power supply to the
power cable when the unit is not in use, especially in saltwater en-
vironments. When the unit is turned off but still connected to a
power supply, electrolysis can occur in the power cable plug. This
may result in corrosion of the plug body along with the electrical
contacts in the cable and the unit's power socket. Risk of electroly-
sis corrosion is even greater when the cable is unplugged from the
unit, but still connected to a power source. 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 di-
rect to the battery and installing an in-line 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, especially when the power cable is dis-
connected from the unit.
power cable when the unit is not in use, especially in saltwater en-
vironments. When the unit is turned off but still connected to a
power supply, electrolysis can occur in the power cable plug. This
may result in corrosion of the plug body along with the electrical
contacts in the cable and the unit's power socket. Risk of electroly-
sis corrosion is even greater when the cable is unplugged from the
unit, but still connected to a power source. 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 di-
rect to the battery and installing an in-line 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, especially when the power cable is dis-
connected from the unit.
WARNING:
This product must be independently fused with the en-
closed 3-amp fuse (or equivalent), even if you connect to
a fused accessory or power bus.
If a malfunction happens inside the unit, extensive dam-
age can occur if the enclosed fuse is not used. As with all
electrical 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.
Failure to use a 3-amp fuse will void your warranty.
closed 3-amp fuse (or equivalent), even if you connect to
a fused accessory or power bus.
If a malfunction happens inside the unit, extensive dam-
age can occur if the enclosed fuse is not used. As with all
electrical 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.
Failure to use a 3-amp fuse will void your warranty.
If possible, keep the power cable away from other boat wiring, especially
the engine's wires. This will provide the best isolation from electrical
noise. If the cable is not long enough, splice #18 gauge wire onto it.
The display power cable has three wires, white, red and black. Red is the
The display power cable has three wires, white, red and black. Red is the
positive (+) lead, black is negative (–) or ground. The white wire is un-
used by your unit and should be capped. Make sure to attach the in-line
fuse holder to the red lead as close to the power source as possible.
fuse holder to the red lead as close to the power source as possible.