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Lowrance 3500 User Manual

Lowrance 3500
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3500
Installation and Operation
Instructions
The 3500 is a high-performance digital sonar. It works only off the bottom signal
and it's operation is completely automatic. There are no sensitivity or noise con-
trols. All of this is made possible by the computer built inside. This unit fits in a
standard 2 1/8" (54 mm) hole used by most marine equipment manufacturers.
Mounting
The 3500 needs at least 2 1/2" (64 mm) of space to mount on any flat panel or
dash. To install the unit, also make certain there is at least 3 3/4" (95 mm) from
the
front
of the dash to any obstruction behind the dash. Check to be sure there
is room to route the power and sensor cables. The
maximum
usable dash thick-
ness is 1 1/8" (28.5 mm).
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3 3/4" minimum
clearance
When you determine the location for the 3500, drill a 2 1/8" (54 mm) hole in the
dash. Slide the 3500 through the hole from the front of the dash. Align it so that
it's straight, then tighten the two screws with a phillips-head screwdriver.
CAUTION!
To prevent damage to the unit, DO NOT use a pneumatic/power screwdriver.
Use a hand-held screwdriver and the torque should not exceed 7 in lbs. Also,
when removing the unit, do not back the screws out of the case. Damage to the
faceplate will result. We recommend backing off the screws one complete turn
before attempting to remove the unit. If further loosening of the screws is re-
quired, do so in half-rotation increments.
Place the push-button into the holes in the bezel and snap it on to the 3500.
The unit is now ready for wiring.
DASH
TIGHTEN
THESE
SCREWS
SCREW

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Lowrance 3500 Specifications

General IconGeneral
BrandLowrance
Model3500
CategorySonar
LanguageEnglish

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