Furuno 841 User Manual download pdf (Page 47)

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5.2 Display Unit Installation

Mounting considerations

When selecting a mounting location for the

display unit keep in mind the following

points.

• The display unit is designed and con-

structed to be splashproof, thus it can be

installed outdoors. You can even hose it

down after a day’s outing. If it is to be

installed outdoors, we recommend install-

ing it an enclosed cabinet, for maximum

protection against the marine environ-

ment.

• The temperature and humidity of the

mounting location should be stable and

moderate. No LCD can provide adequate

contrast if the ambient temperature is too

extreme.

• The display unit consumes only a mod-

erate amount of power, so there is no need

for forced air ventilation. However, you

should provide adequate space behind and

around the unit to permit circulation of

air and to provide convenient access to

the rear connectors.

• Even though the picture is quite legible

even in bright sunlight, keep the display

unit out of direct sunlight or at least

shaded because of heat that can build up

inside the cabinet.

• Locate the display unit in a position where

you can view and operate it conveniently

but where there is no danger of salt or

fresh water spray or immersion.

• The orientation of the display unit should

be so the radar screen is viewed while the

operator is facing in the direction of the

bow. This makes determination of your

position much easier.

• Make sure you allow enough clearance

both to get to the connectors behind the

unit and to allow you to get your hands

in on both sides to loosen or tighten the

mounting knobs. Make sure you leave at

least a foot or so of “service loop” of

cables behind the unit so it can be pulled

forward for servicing or easy removal of

the connectors.

• A magnetic compass will be affected if

placed too close to the display unit. Ob-

serve the minimum compass safe dis-

tances to prevent deviation of a magnetic

compass: standard compass, 0.7 meters,

and steering compass, 0.5 meters.

Mounting procedure

The display unit is designed to be mounted

on a tabletop.

1) Using the hanger as a template, mark

screw locations in the mounting location.

2) Fix the hanger to the mounting location

with four M6 tapping screws (supplied).

3) Fit the knob bolts to the display unit.

4) Install the display unit in the hanger.

5) Tighten the knob bolts securely.

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