Installation And Setup; Installation - NorthStar NS 3100 User Manual

6 Installation and setup

6-1 Installation

Reference Manual and Installation Manual
Correct installation is critical to the performance of the unit. It is vital to read this section of the manual and the
documentation that comes with the other parts before starting installation.
The NS3100 DEPTH can:
Drive external beepers or lights for the alarm.
Send and receive data from other Northstar
instruments connected via NavBus. Settings
Warnings
The unit is waterproof from the front. Protect the rear of the unit from water, or else water might enter the
breathing hole and damage the unit. The warranty does not cover damage caused by moisture or water
entering the back of the unit.
Ensure that any holes that you cut will not weaken the boat's structure. If in doubt, consult a qualified boat
builder.
The choice, location, angle and installation of the transducers is the most critical part of the installation. If
they are not correct, the unit can not perform at its designed potential. If in doubt, consult your Northstar
dealer. Plastic through hull transducers are usually unsuitable for wood hulls. If in doubt, consult a
marine surveyor or marine engineer.
NS3100 DEPTH display unit
1 Choose a location for the display unit that is:
Easily seen and protected from damage.
At least 100 mm (4") from a compass and at
least 500 mm (1.65 ft) from a radio or radar
antenna.
Away from engines, fluorescent lights, and
power inverters.
Accessible from behind; the minimum
clearance required at the back is 50 mm (2")
(see mounting diagram).
With the back of the unit protected from
moisture.
2 The unit must mount on a flat panel which
is less than 20 mm (0.75") thick. Stick the
mounting template in place. Drill a 50 mm
(2") fixing hole through the centre hole in the
template. Note that the template allows space
around the unit for the protective cover.
3 Remove the fixing nut from the back of the
unit. Insert the stud at the back of the unit
through the mounting hole. Hand tighten the
fixing nut.
for alarms, units, calibration and backlighting are
shared (see section 4-1).
Send and receive NMEA data from other
instruments (see section 4-2).
Side view of display unit mounting
Fixing hole
50 mm (2")
Display
unit
Clearance 50 mm
(2") minimum
20 mm (0.75")
maximum thickness
Fixing nut
Cables
11