SPEED 3100 log Installation and Operation Manual
NAVMAN
13
12 V DC
power
External beepers or
lights (optional)
Red
White
Green
Black
Yellow
Switch
Fuse
Orange
Blue
NavBus (optional
)
Masthead
unit cable
NMEA out (optional)
NMEA in (GPS, optional)
}
Power/data cables
Junction box
Junction box
Power
& data
connections
Power/data cable
NavBus cable
Group 1
Group 2
Power & data
connections
Power/data wiring
1
Wire the display unit power/data cable:
The unit requires 12 V DC power. Fit a
power switch and fuse to the power supply
or power the unit from a fused auxiliary
switch. The fuse should be 1 A for up to five
instruments.
If the external beepers and lights require
more than 250 mA DC total, fit a relay.
A single unit can be wired as shown below:
With several instruments, use the optional
junction boxes to simplify wiring, as shown
below:
For information on how to connect NavBus and
to use junction boxes, refer to the NavBus
Installation and Operation Manual.
2
Tape or cover any unused wires or connectors
to protect them from water and keep them from
shorting together.
9-2 Set up
1
Take the boat for a trial run to check that all the
instruments work correctly.
2
If the unit will take speed readings from a GPS
receiver (rather than a speed transducer or an
external speed input from an instrument with a
speed transducer - see section 7):
i
Press
+
several times until the Speed
Mode screen is displayed:
ii
Press
or
to change the mode to GPS
(when using a speed transducer, the mode
should be SEn).
iii Press
.
3
If the unit is part of a system of 3100 series
instruments connected by NavBus, set the
backlight group number (see section 7-1):
i
Press
+
several times until the
Backlight Group screen is displayed:
ii
Press
or
to set the backlight group
number.
iii Press
.
4
Set:
Speed and log units (see section 3-1).
The speed resolution (see section 3-6).
The temperature units (see section 5-1).
5
Calibrate if required:
Speed (see section 3-7).
Temperature (see section 5-2).
Group 3
