Navman MULTI 3100 User Manual

Installation and

Operation Manual

DRAFT

MULTI 3100

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This document is still under review and is subject to change.

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NAVMAN

MULTI 3100 Installation and Operation Manual

English .............2

Français .........18

Español ..........33

Português ......48

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NAVMAN

1

FCC Statement

Note: This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a normal installation. This
equipment generates, uses and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following
measures:

Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an output on a circuit different from that to which the
receiver is connected.
Consult the dealer or an experienced technician for help.
A shielded cable must be used when connecting a peripheral to the serial ports.

2

NAVMAN

MULTI 3100 Installation and Operation Manual

Contents

1 Introduction ..................................................................................................... 5

2 Operation ......................................................................................................... 6

2-1 Turn on and off ............................................................................................................6

2-2 Basic operation............................................................................................................ 6

2-3 Change units ............................................................................................................... 6

2-4 Alarms .........................................................................................................................6

2-5 Simulate mode............................................................................................................. 6

2-6 Key reference .............................................................................................................. 7

3 Speed, average speed, maximum speed, trim speed .................................. 8

3-1 Set speed and log units ............................................................................................... 8

3-2 Reset average speed ...................................................................................................8

3-3 Reset maximum speed ................................................................................................ 8

3-4 Reset trim speed ......................................................................................................... 8

3-5 Set speed damping...................................................................................................... 8

3-6 Set speed resolution .................................................................................................... 8

3-7 Calibrate speed ........................................................................................................... 8

4 Log and total log ............................................................................................. 9

4-1 Reset log ..................................................................................................................... 9

4-2 Reset total log.............................................................................................................. 9

5 Depth, keel offset, too deep alarm, too shallow alarm ............................... 10

5-1 Set depth units .......................................................................................................... 10

5-2 Set too deep alarm..................................................................................................... 10

5-3 Set too shallow alarm................................................................................................. 10

5-4 Anchor watch............................................................................................................. 10

5-5 Set keel offset............................................................................................................ 10

6 Temperature....................................................................................................1 1

6-1 Set temperature units ................................................................................................ 11

6-2 Calibrate temperature ................................................................................................ 11

7 Countdown timer ............................................................................................11

7-1 Start countdown timer ................................................................................................ 11

7-2 Stop and reset countdown timer................................................................................. 11

7-3 Adjust start time......................................................................................................... 11

8 Systems of several instruments .................................................................. 12

8-1 NMEA ....................................................................................................................... 12

8-2 NavBus ..................................................................................................................... 12

9 MULTI 3100 hardware.................................................................................... 12

9-1 What comes with your MULTI 3100........................................................................... 12

9-2 Other parts required .................................................................................................. 12

9-3 Transducers .............................................................................................................. 13

9-4 Accessories............................................................................................................... 13

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MULTI 3100 Installation and Operation Manual

3

10 Installation and setup.................................................................................. 13

10-1 Installation ............................................................................................................... 13

10-2 Setup....................................................................................................................... 15

10-3 Resetting to factory defaults .................................................................................... 15

Appendix A - S pecifications ............................................................................ 15

Appendix B - Troubleshooting ........................................................................ 16

Appendix C - How to contact us ..................................................................... 63

Units

This unit is set up with default units of metres, °C, knots and nautical miles.
Please refer to section 2-3 of this manual to change the units.

Important

It is the owner’s sole responsibility to install and use the instrument and transducer/s in a manner that will
not cause accidents, personal injury or property damage. The user of this product is solely responsible
for observing safe boating practices.

NAVMAN NZ LIMITED DISCLAIMS ALL LIABILITY FOR AN Y USE OF THIS PRODUCT IN A WA Y THA T
MAY CAUSE ACCIDENTS, DAMAGE OR THAT MA Y VIOLATE THE LAW .

This manual represents the MULTI 3100 as at the time of printing. Navman NZ Limited reserves the right
to make changes to specifications without notice.

Governing Language: This statement, any instruction manuals, user guides and other information relating
to the product (Documentation) may be translated to, or has been translated from, another language
(Translation). In the event of any conflict between any Translation of the Documentation, the English
language version of the Documentation will be the official version of the Documentation.

Copyright © 2002 Navman NZ Limited, New Zealand. All rights reserved. NA VMAN is a registered trademark
of Navman NZ Limited.

4

NAVMAN

MULTI 3100 Installation and Operation Manual

1 Introduction

The MULTI 3100 measures and displays speed,
water depth and water temperature. It can calculate
and display average speed, maximum speed, trim
speed, trip log (distance) and total log.

An installed MULTI 3100 usually has two p art s:

The display unit.
Depth and speed / temperature transducers

which are attached to the hull and wired to the

display unit.
The unit is powered from the boat’s power supply.
The MULTI 3100 is part of the NAVMAN family of

instruments for boats, which includes instruments
for speed, depth, wind and repeaters. These
instruments can be connected together to form an
integrated data system for a boat (see section 8).

For maximum benefit, please read this manual
carefully before installation and use.

How the transducer measures depth

The depth transducer generates an ultrasonic
(sound) pulse, which travels down through the water.
When the pulse meets the bottom, some of the pulse
is reflected back up towards the boat and is received
by the transducer.

The MULTI 3100 display unit

Display

(backlit)

The display unit analyses the reflections from each
pulse. It removes unwanted reflections (from bubbles
and other objects) and calculates the depth by
measuring the time between sending the pulse and
receiving its echo.

How the transducer measures speed

The speed transducer has a small paddlewheel
which spins as the boat moves through the water.
The transducer measures how fast the paddlewheel
is spinning and calculates the boat speed by
averaging several measurements.

Cleaning and maintenance

Clean the display unit and any plastic transducers
with a damp cloth or mild detergent. Avoid abrasive
cleaners, petrol or other solvents.

When repainting the hull, cover or remove any visible
transducers. Depth transducers may be coated with
a thin layer of antifouling paint; gently sand off any
previous paint first.

Do not use a high pressure water blast on the speed
transducer paddlewheel as it may damage the
bearings.

Alarm symbol

Top part of display,
(showing boat speed)

NAVMAN

Four keys

(backlit)

MULTI 3100 Installation and Operation Manual

Bottom part of display,
(showing water depth)

111 x 111 mm
(4.4" x 4.4")

5

2 Operation

2-1 T urn on and off

Turn the unit on and off with the auxiliary power switch
on the boat. The unit does not have its own power
switch. When you turn it off, any settings you have
made are retained.

If the word SIM flashes at the bottom, right of the
display, then the unit is in simulate mode (see
section 2-5).

2-2 Basic operation

The keys

The unit has four keys, labelled and .
In this manual:

Press means to push the key for less than one

second.

Hold for two seconds means to hold the key

down for two seconds or more.

Press one key + another key means to push

both keys together.

Set backlight level for screen and keys

You can set the backlight to one of four brightness
levels or off. Press
backlight level, press again to change the level:

Change the items displayed

The display can show two values at once, one in the
top part of the screen and one in the bottom. If an
item displays as dashes (— —) then it means that
the value is outside the range, for example the depth
might be too deep or unknown.

To change what is displayed in the top part of the
screen, press one or more times to select:

Speed.

Avg speed.

Max speed.

Trim speed.

Depth.

Temperature.

once to display the current

Backlight
Level 2

To change the value displayed in the bottom part of
the screen, press

Speed.
Depth.
Trip log (distance).
Total log (distance).
Battery voltage.
Countdown timer.

one or more times to select:

2-3 Change units

To change the speed and log units, press
until SPEED is displayed, then hold until the
units change; if necessary, hold again until
the units change again.

To change the depth units, press until
DEPTH is displayed, then hold until the
units change; if necessary, hold until the
units change again.

To change the temperature units, press
until the temperature is displayed, then hold
until the units change.

2-4 Alarms

The MULTI 3100 can be set to sound an alarm when
the water is too deep or too shallow (see sections
5-2 and 5-3). When the alarm sounds, the internal
beeper sounds, the symbol on the display flashes
and any external beepers or lights operate.

Press

to mute the alarm. The alarm stays muted
until the depth becomes returns to the pre-alarm
condition or is within the alarm parameters. The
alarm will sound if the depth becomes too deep or
too shallow again.

2-5 Simulate mode

Simulate mode allows you to become familiar with
the unit off the water. In Simulate mode, the MULTI
3100 functions normally except that the transducers
are ignored and the unit generates this data internally.
The word SIMULATE flashes at the bottom, right
corner of the screen.

To turn Simulate mode on or off:
1 Turn the power off.
2 Hold down while you turn the power on.

6

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MULTI 3100 Installation and Operation Manual

2-6 Key reference

Turn power on

Hold

Hold

+

5 sec

Normal operation

Hold 2 sec

+

+

+

Hold
2 sec

Hold
2 sec

Turn Simulate
on or off

Reset memory

Change top display
(Speed, Avg speed, Max
speed, Trim speed, Depth,
Temperature)

Change bottom display
(Speed, Depth, Log, Total log,
Battery voltage, Countdown
timer)

Mute an alarm

Adjust backlight
(4 levels or off)

Reset top value to zero
(Avg speed, Max speed,
Trim speed)

Reset bottom value to zero
(Log, Total log (hold for 5 sec)
Start or stop countdown timer)

Change units of top value
(e.g. knots, metres, °C)

Change units of bottom value
(e.g. knots, metres)

+

Mode
is SEn

Mode
is GPS

Set alarms

Set T oo Deep
alarm

Hold

2 sec

Set T oo
Shallow alarm

Hold

2 sec

Setup

Set Speed
Damping

+

Set Countdown
Timer Start Time

+

Set Keel Offset

+

Set T emperature
Calibration

+

Set Speed Mode
Sen(sor) or GPS

Set Speed
Calibration

+

Set Log
Calibration

+

Set Speed
Resolution

+

Set Backlight
Group

+

Turn
alarm
on or off

Increase
alarm
depth

Decrease
alarm
depth

Return to
normal
operation

Increase
value or
change
setting

Decrease
value or
change
setting

Return to
normal
operation

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MULTI 3100 Installation and Operation Manual

7

3 Speed, average speed, maximum speed, trim speed

The unit can display several speeds:

SPEED: The current boat speed.
AVG SPEED: The average speed since AVG

SPEED was reset or the unit was switched on.
MAX SPEED: The maximum speed since MAX

SPEED was reset or the unit was switched on.
TRIM SPEED: Trim speed may be used for

tuning racing boats. Trim speed measures
changes in boat speed, relative to when you
reset trim speed to zero. For example, if the
boat is travelling at 10 knots and you reset trim
speed, then trim speed is zero. Then:

If the boat speed increases to 11.5 knots,
the trim speed is 1.5 knots.

If the boat speed decreases to 8.5 knots,
the trim speed is -1.5 knots.

3-1 Set speed and log units

The speed units can be selected to be KNOTS, KPH
and MPH. Selecting one of these automatically sets
the log distance units to NM, KM or M (miles):

Press until SPEED is displayed, then hold

until the units change; if necessary , hold

again until the units change again.

3-2 Reset average speed

Resetting makes the MULTI 3100 calculate a new
average speed:

1 Press
2 Press

until AVG SPEED is displayed.

+ .

3-3 Reset maximum speed

Resetting makes the MULTI 3100 calculate a new
maximum:

1 Press
2 Press

until MAX SPEED is displayed.

+ .

3-4 Reset trim speed

Resetting sets the trim speed to zero:
1 Press
2 Press

until TRIM SPEED is displayed.

+ .

3-5 Set speed damping

Waves and wind cause the boat speed to fluctuate
slightly. To give a stable reading, the MULTI 3100
calculates the boat speed and trim speed by
measuring the speed several times and averaging
the measurements. The speed damping value
ranges from 1 to 5:

A lower value averages readings over a shorter
period of time. This gives the most accurate
speed but has the most fluctuations.

8

A higher value averages readings over a longer
period of time. This gives the most stable speed
but will ignore some true speed changes.

Set the speed damping to the lowest value which
gives a stable speed reading. Values of 1, 2, 3, 4
and 5 average readings over a time period of 6, 12,
18, 24 and 30 seconds respectively. To get the most
accurate, stable trim speeds, you may need to
increase the damping. To set speed damping:

1 Press

2 Press
3 Press

+ several times until the Speed

Damping screen is displayed:

or to change the damping.
.

3-6 Set speed resolution

This sets how speeds are displayed. It has two
settings:

0.0 Displays speeds as 0.0 to 19.9, 20 up.

0.00 Displays speeds as 0.00 to 19.99, 20.0 to

29.9, 30 up.
To set the speed resolution:
1 Press

2 Press

3 Press

+ several times until the Speed

Resolution screen is displayed:

or to change the resolution setting

to 0.0 or 0.00.

.

3-7 Calibrate speed

Calibration may be required, because different hull
shapes have different water flow characteristics.
Speed calibration can be done either by the speed
or by the log, as described below. If speed readings
are taken from a GPS receiver (see section 8-1),
then you can not calibrate it.

NAVMAN

MULTI 3100 Installation and Operation Manual

Damping
equals 3

Value
equals

0.0 or 0.00

Calibrate by speed

In this method, travel at a measured, constant speed.
Use the speed displayed on a GPS receiver, follow
another boat travelling at a known speed or make a
timed run over a known distance.

Note that for accurate calibration:

The speed from a GPS receiver should be
above 5 knots.

The speed from another paddlewheel
transducer e.g. another boat - should be
between 5 and 20 knots.

Best results are achieved in calm conditions
where there is minimal tidal current (best at
high or low tide).

Continue travelling at this measured, constant speed
and calibrate the speed as follows:

1 Press

+ several times until the Speed
Calibration screen is displayed (after this, it
does not matter if the boat speed changes):

Measured
speed

Calibrate by log

In this method, travel a known distance in a straight
line over a course. Best results are achieved in calm
conditions where there is minimal current (best at
high or low tide). Tidal effects may be reduced by
making the trip twice, parallel to the current, once in
each direction.

1 At the start of the course, reset the trip log (see

section 4-1). Travel in a straight line over the
course, then repeat in the other direction.

2 At the end, note the trip log distance (see

section 4).

3 Press + several times until the Log

Calibration screen is displayed:

Distance

travelled

4 Press

5 Press

or to change the displayed
distance travelled to the actual distance you
travelled over the course.

.

2 Press

3 Press

or to change the displayed speed

to the measured boat speed.

.

4 Log and total log

The MULTI 3100 has two distance logs:

LOG: Trip distance. The distance travelled
since log was reset.

TOTAL LOG: Total distance. The distance
travelled since total log was reset:

Total log

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MULTI 3100 Installation and Operation Manual

The log units are NM, KM or M (miles) and
correspond to the speed units, for example if you set
the speed units to KPH then the log units are KM
(see section 3-1).

4-1 Reset log

Resetting zeros the log (trip distance):
1 Press
2 Press

until LOG is displayed.

+ .

4-2 Reset total log

Resetting zeros the total log (total distance), as well
as the log and avg speed:

1 Press
2 Hold

until TOTAL LOG is displayed.

+ for 5 seconds.

9

5 Depth, keel offset, too deep alarm, too shallow alarm

Depth and keel offset

The displayed depth is the distance from the transducer
on the boat to the bottom of the water, plus or minus an
offset which is called the keel offset:

A positive keel of fset displays depth as
measured from a point above the transducer.

For example, if you set the offset as the
distance from the transducer to the surface, it

Keel offset

will display the depth from the surface to the
bottom of the water.

A negative keel offset displays depth as
measured from a point below the transducer .

For example, if you set the negative offset as
the distance from the transducer to the bottom
of the keel, it will display the depth from the
bottom of the keel to the bottom of the water.

Water surface
Depth of transducer

Note: The boat illustrated uses a through hull transducer

5-1 Set depth units

The units can be METERS, FEET or FATH:

Press until DEPTH is displayed, then hold

until the units change; if necessary , hold

until the units change again.

5-2 Set too deep alarm

The too deep alarm sounds if the alarm is turned on
and the depth becomes equal to or more than the
too deep alarm depth. To mute the alarm, press .

T o set the too deep alarm:
1 Hold

2 To change the alarm depth, press
3 To turn the alarm on or off, press
4 Press

for two seconds to display the Too

Deep Alarm screen:

Deep
alarm
value

Alarm
is on

or .

.

.

5-3 Set too shallow alarm

The too shallow alarm sounds if the alarm is turned
on and the depth becomes equal to or less than the
too shallow alarm depth. To mute the alarm, press

. To set the too shallow alarm:

1 At the Too Deep Alarm screen, hold

seconds to display the T oo Shallow Alarm screen:

for two

Keel offset

Positive value

Transducer

2 To change the alarm depth, press or .
3 To turn the alarm on or off, press .
4 Press .

Negative value

Shallow
alarm
value

Alarm
is off

5-4 Anchor watch

T o set an anchor watch, set the too shallow alarm to
slightly less than the current depth and set the too
deep alarm to slightly more than the current depth.
Allow for tide changes.

5-5 Set keel offset

Keel offset is described above. The range is ± 2.9 m
(± 9.6 ft, ± 1.6 fathoms):

Keel
offset
(negative)

1 Press
2 Press or to change the keel offset.

3 Press .

+ several times until the Keel
Offset screen is displayed:

10

NAVMAN

MULTI 3100 Installation and Operation Manual

6 Temperature

T emperature is measured by a sensor in the speed
transducer.

6-1 Set temperature units

The units can be either °C or °F:

Press until the temperature is displayed,
then hold until the units change.

6-2 Calibrate temperature

The unit is factory calibrated and should not normally
need calibrating. To calibrate:

1 Measure the water temperature near the speed

transducer.

2 Press

+ several times until the

Temperature Calibration screen is displayed:

7 Countdown timer

Y ou can adjust the countdown timer to start counting
down between one and ten minutes, in increments
of one minute. The factory default start time is 10
minutes. When the timer is counting down, the
countdown timer symbol flashes and the time
remaining is displayed in minutes and seconds:

Countdown
timer symbol
flashes

Timer
counting
down

The beeper sounds and any external beepers or
lights operate:

Four beeps at four minutes to go.
Three beeps at three minutes.
Two beeps at two minutes.
One beep at one minute.
Ten beeps at the end; the last beep is longer

and marks the end of the countdown.

In each case, the end of the last beep marks the
exact minute.

7-1 Start countdown timer

The timer starts at the start time (to adjust the start
time, see section 7-3).

1 Press

2 Press

until the countdown timer is

displayed.

+ . The timer displays On briefly

and starts counting down from the start time.

Water
temperature

3 Press

4 Press

or to change the temperature to
the value measured in step 1 above.

.

7-2 Stop and reset countdown timer

1 Press until the countdown timer is

displayed.

2 Press

+ . The timer stops and the time

resets to the start time (see section 7-3).

7-3 Adjust start time

1 Press + several times until the

Countdown Timer Start Time screen is displayed:

Timer
start time
is 9 min

2 Press
3 Press

or to set the start time in minutes.
. The timer does not start now (to start

the timer, see section 7-1).

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MULTI 3100 Installation and Operation Manual

11

8 Systems of several instruments

Several NAVMAN instruments can be connected
together during installation to share data. There are
two ways of connecting instruments together, NavBus
or NMEA.

8-1 NMEA

NMEA is an industry standard. Speed, depth,
temperature and log data may be output which can
be read and displayed by any compatible NAVMAN
(eg REPEAT 3100) or other NMEA instrument. S peed
(RMC) can be received via NMEA and displayed by
the MULTI 3100 (see section 10-1 for wiring).

If an external RMC (speed) input is available from a
GPS instrument, then you can set up the MULTI
3100 to use this for speed readings (see section
10-2, step 2); Note:

A speed from a paddlewheel sensor is the
speed that the boat is moving through the
water. A speed from a GPS is the speed over
the ground. If there is a current then these two
speeds will be different.

If a transducer is not fitted to the unit and the
corresponding external data is not available
then the displayed value will be 0 (for example,
when using a GPS input for speed and no
speed/temperature transducer is fitted then
temperature displays as 0).

8-2 NavBus

NavBus is a NAVMAN proprietary system. It is high
speed and allows a wide range of data to be shared
by the instruments.

When instruments are connected by NavBus:

If you change the units, alarms or calibration in
one instrument, then the values will automatically
change in all other instruments of the same type

Each instrument can be assigned to a group of
instruments (see section 10-2, step 3). If you
change the backlight in an instrument in group
1, 2, 3 or 4 then the backlight will automatically
change in the other instruments in the same
group. If you change the backlight in an
instrument in group 0 then no other instruments
are affected.

If an alarm sounds, mute it by pressing on
any instrument which can display that alarm.
For example, mute a depth alarm on any
instrument that can display depth.

If the unit does not have a depth or a speed/
temperature transducer fitted then the unit will
automatically take depth, speed and temperature
readings from another instrument, via NavBus, if the
data is available.

For more information, refer to the NavBus Installation
and Operation manual.

9 MULTI 3100 hardware

9-1 What comes with your MULTI 3100 9-2 Other parts required

The MULTI 3100 comes in several configurations.

Standalone configuration

MULTI 3100 unit with protective cover .
Warranty card.
Mounting template.
This Installation and Operation Manual.

In addition, the standalone configuration usually requires
a depth transducer and a speed/temperature transducer
(see section 9-3).

Kit configuration

The MULTI 3100 is available in several kit configurations
with different grades of through hull transducer, with:

The parts for the standalone configuration, listed
above.

Through hull depth transducer.
Through hull speed/temperature transducer.
Transducer Installation Manual.

12

One or more 3100 series instruments will be
connected to the boat 12 V power supply via:

An accessory switch to turn the instruments on
and off.

A fuse. Use a 1 A fuse for between one and five
instruments.

Optional external beepers or lights can be fitted. The
MULTI 3100 output is switched to ground, 30 V DC
and 250 mA maximum. If the beepers and lights
require more than 250 mA, fit a relay.

For systems of several instruments, wiring and
connectors are required (see section 8 or your
NavBus Installation and Operation Manual).

NAVMAN

MULTI 3100 Installation and Operation Manual

9-3 Transducers

The MULTI 3100 is usually used with a through hull
depth transducer and a separate through hull speed/
temperature transducer. However , the unit can take
readings from another instrument, in which case it
may not need transducers (see section 8).
Through hull transducers generally give the best
performance and are the best choice for
displacement hulls. They are mounted in a hole
drilled through the bottom of the boat.

Plastic through hull transducers are suitable
for GRP or metal hulls.
Bronze transducers are suitable for wood or
fibreglass hulls. Never install a bronze
transducer in a metal hull, because it will

cause electrolytic corrosion.
A range of NAVMAN through hull transducers are
available, plus in hull and transom mount
transducers. For more information, refer to the

Transducer Installation manual or consult your
NAVMAN dealer .

9-4 Accessories

These accessories are available from your NAVMAN dealer.

4 m speed

transducer extension

cable

4 m depth

transducer

extension cable

Through hull

speed transducer

10 Installation and setup

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 MULTI 3100 can:

Drive external beepers or lights for the alarm
and countdown timer.
Send and receive data from other NAVMAN
instruments connected via NavBus. Settings
for alarms, units, calibration and backlighting
are shared (see section 8).
Send and receive NMEA data from other
instruments.

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.

NAVMAN

MULTI 3100 Installation and Operation Manual

Through hull speed

paddlewheel

skin fitting

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 NAVMAN dealer. Plastic
through hull transducers are usually unsuitable
for wood hulls. If in doubt, consult a marine
surveyor or marine engineer.

Ensure that any holes that you cut will not weaken
the boat’s structure. If in doubt, consult a qualified
boat builder.

NavBus junction

Box (See section 8)

10-1 Installation

MULTI 3100 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 (19.5") from a radio or
radar antenna.

13

Away from engines, fluorescent lights,
power inverters and radio or radar
transmitters.
Accessable 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.

Transducers

1 If the MULTI 3100 does not come with

transducers, choose suitable transducers (see
section 9-3). If the MULTI 3100 is supplied with
transducers, see section 9-3 to ensure that
they are suitable.

2 Choose suitable locations for the transducers

and install them by following the instructions in
the Transducer Installation manual.

3 Fit the cables between the transducers and the

display unit:

Keep the cable away from other cables,
engines, fluorescent lights, power inverters
and radio or radar transmitters.
Do not lay the cable in the bilge.
If necessary, extend the cable by adding
extension cables.
Do not cut the cable on any depth
transducer.
Secure the cable at regular intervals.

4 Connect the transducers to the display unit

connectors.

Side view of display unit mounting

Fixing hole
50 mm (2")

20 mm (0.75")
maximum thickness

Fixing nut

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:

Black

Switch

Red

Green

Yellow

White
Orange

Blue

Speed/temperature transducer

Depth transducer

Fuse

External beepers or
lights (optional)

NMEA in (GPS, optional)
NMEA out (optional)

NavBus (optional)

}

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.

Group 1

Junction box

Power & data
connections

Power/data cables

Group 2

NavBus cable

Junction box

Power & data
connections

-

12 V DC
power

+

Display

unit

2 Tape or cover any unused wires or connectors

to protect them from water and keep them from
shorting together.

10-2 Set up

1 Take the boat for a trial run to check that all

Power/data cable

Cables Clearance

50 mm (2") minimum

14

the instruments work correctly.

2 If the unit will take speed readings from a GPS

receiver, rather than a speed transducer or an

NAVMAN

MULTI 3100 Installation and Operation Manual

external speed input from an instrument with a

speed transducer (see section 8-1):

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
unit’s backlight group number (see section 8):

i Press

+ several times until the

Backlight Group screen is displayed:

ii Press

or to set the backlight group
number.

iii Press

.

4 Set:

10-3 Resetting to factory defaults

All settings may be reset to the manufacturer’s default
settings (see below).

To reset to factory defaults:
1 Turn the power off.
2 Hold down + while you turn the power on

and continue to hold the keys down for at least
five seconds.

Speed units .........................................Knots

Depth units........................................ Metres

Temperature unit s.....................................°C

Speed resolution ..................................... 0.0

Speed damping........................................... 2

Keel offset ................................................... 0

Depth alarms............................................Off

Countdown timer start time ..............10 min

Distance logs ..............................................0

SIMULATE mode ......................................Off

Backlight Level ...........................................0

Backlight Group.......................................... 1

Speed and log units (see section 3-1).
The speed resolution (see section 3-6).
The depth units (see section 5-1).
The keel offset (see section 5-5).
The temperature units (see section 6-1).

5 Calibrate if required:

Speed (see section 3-7).
Temperature (see section 6-2).

NAVMANNAVMAN

MULTI 3100 Installation and Operation Manual

15

Appendix A - Specifications

Physical

Case size 111 mm (4.4") square.
LCD display 82 mm (3.2") wide, 61 mm (2.4")
high; twisted nematic.
LCD digits 30 mm (1.2") high on top line,
20 mm (0.8") high on bottom line.
Four operator keys, laser etched
Backlighting for display and keys, amber, four
levels and off.
Operating temperature 0 to 50°C (32 to 122°F)
Transducer cable length 8 or 9 metres (26.25 or

29.5 ft).
Power Cable length 1 m (3.25 ft).

Electrical

Power supply 10 to 5 to 16.5 V DC, 30 mA
without backlighting, 200 mA with full
backlighting and transducer.
External beeper or light output, switched to
ground, 30 V DC and 250 mA maximum.

Speed

Displays current speed, average speed,
maximum speed, trim speed.
Range 0 to 50 knots (0 to 58 mph, 0 to 93 km/h).
Display resolution either 0.0 to 19.9, 20 up or

0.00 to 19.99, 20.0 to 29.9, 30 up.
Trim speed displays ± .00 to .99, 1.0 to 9.9, 10 up
Adjustable damping for speed and trim speed
gives stable readings in all sea conditions;
values of 1, 2, 3, 4 & 5 average readings over a
time period of 6, 12, 18, 24 & 30 seconds
respectively.

Log

Displays trip log and total log.
Range 0 to 99999 km, miles or nautical miles.
Displays 0.00 to 999.99, 1000.0 to 9999.9,
10000 up.

Depth

Range 0.5 to 130 m (1.5 to 400 ft, 0.3 to 67 fa).
Typical accuracy < 2% (depends on type of
depth transducer, installation and water clarity).
Displays 0.0 to 19.9, 20 up.
Adjustable keel offset ± 2.9 m (± 9.6 ft, ± 1.6 fa)
Too Deep and Too Shallow alarms (run both at
once to provide anchor watch facility).

Temperature

Range 0 to 37.7°C (32 to 99.9°F); typical
accuracy < 2°C.
Resolution 0.1 degree.

Countdown timer

Can be set to between 1 and 10 minutes, in
increments of 1 minute.
Counts down in minutes and seconds.

Calibration

Speed and temperature can be calibrated.

Interfaces

NavBus connection to other NAVMAN
instruments.
NMEA 0183 outputs: DBT, DPT, PTTKD,
PTTKV, VHW, MTW, VLW; input RMC.

Standards compliance

EMC compliance

USA (FCC): Part 15 Class B.
Europe (CE): EN50081-1, EN50082-1
New Zealand and Australia (C Tick) :

AS-NZS 3548.
Environment: IP66 from front when correctly
mounted.

Power/data cable wires
Wire Signal

Red Power positive, 12 V DC, 200 mA

maximum
Black Power negative, NMEA common
Green External beeper or light out, switched to

ground, 30 V DC and 250 mA max.
Orange NavBus +
Blue NavBus ­White NMEA out
Y ellow NMEA in

16

NAVMAN

MULTI 3100 Installation and Operation Manual

Appendix B - Troubleshooting

This troubleshooting guide assumes that you have
read and understood this manual.

It is possible in many cases to solve difficulties
without having to send the unit back to the
manufacturer for repair. Please follow this
troubleshooting section before contacting the
nearest NAVMAN dealer .

There are no user serviceable parts. Specialized
methods and testing equipment are required to
ensure that the unit is reassembled correctly and is
waterproof. Repairs to the unit must only be carried
out by a service centre approved by NAVMAN NZ
Limited. Users who service the unit themselves will
void the warranty.

More information can be found on our website:
www.navman.com

1 Unit will not turn on:

a Fuse blown or circuit breaker tripped.
b Battery voltage is outside the range 10.5 to

16.5 V DC.

c Power/data cable damaged.

2 Speed reading wrong or erratic:

a Calibration is incorrect (see section 3-7).
b Speed transducer cable unplugged or

damaged.

c S peed/temperature transducer fouled or

damaged. Check paddle wheel is aligned
fore and aft in the fitting. Remove
paddlewheel from fitting, check for fouling
or damage. Spin paddlewheel by hand,
check for a speed reading.

d Speed transducer installed incorrectly or

transducer does not have a smooth flow of
clear water over it. Review installation.

e Interference from electrical noise. Review

installation.

3 Depth reading wrong or erratic:

a Unit temporarily unable to detect bottom,

for example water too deep or too shallow,
water not clear, boat reversing and
transducer in turbulent water.

b Depth transducer cable unplugged or

damaged.

c Depth transducer fouled or damaged.

Check for fouling, damage or too thick a
layer of paint over it.

d Depth transducer installed incorrectly or

transducer does not have a smooth flow of
clear water over it. Review installation.

e Interference from the ultrasound pulse from

another depth sounder.

f Interference from electrical noise. Review

installation.

To check the transducer, disconnect it and
connect a known good transducer temporarily.
Hold it over the side of the boat in the water
and check if the unit displays a depth.

4 Temperature reading wrong:

a Calibration is incorrect (see section 6-2).
b Speed/temperature transducer cable

damaged.

5 The word SIM flashes at bottom, right of

screen, values displayed are unexpected:

a Unit is in simulate mode (see section 2-5).

6 The display fogs:

a Moist air has entered the breathing tube at

the rear of the unit. Air the boat or run unit
with backlight fully on.

b Water has entered the breathing tube.

Return unit for service.

NAVMAN

MULTI 3100 Installation and Operation Manual

17

Appendix C - How to contact us www.navman.com

NORTH AMERICA

NAVMAN USA INC.

18 Pine St. Ext.
Nashua, NH 03060.
Ph: [phone]
Fax: [phone]
e-mail: [e-mail]

OCEANIA

New Zealand

Absolute Marine Ltd.
Unit B, 138 Harris Road,
East Tamaki, Auckland.
Ph: [phone]
Fax: [phone]
e-mail:

[e-mail]

Australia

NAVMAN AUSTRALIA PTY
Limited
Unit 6 / 5-13 Parsons St,
Rozelle, NSW 2039, Australia.
Ph: [phone]
Fax: [phone]
e-mail: [e-mail]

SOUTH AMERICA

Argentina

HERBY Marina S.A.
Costanera UNO,
Av Pte Castillo Calle 13
1425 Buenos Aires, Argentina.
Ph: [phone]
Fax: [phone]
e-mail:

[e-mail]

Brazil

REALMARINE
Estrada do Joa 3862,
CEP2611-020,
Barra da Tijuca, Rio de Janeiro,
Brasil.
Ph: [phone]
Fax: [phone]
e-mail:

[e-mail]

Equinautic Com Imp Exp de
Equip Nauticos Ltda.
Av. Diario de Noticias 1997 CEP
90810-080, Bairro Cristal, Porto
Alegre - RS, Brasil.
Ph: [phone]
Fax: [phone]
e-mail:

[e-mail]

NAVMAN

MULTI 3100 Installation and Operation Manual

ASIA

China

Peaceful Marine Electronics Co. Ltd.
Hong Kong, Guangzhou,
Shanghai, Qindao, Dalian.
E210, Huang Hua Gang Ke Mao
Street, 81 Xian Lie Zhong Road,
510070 Guangzhou, China.
Ph: [phone]
Fax: [phone]
e-mail:

[e-mail]

Website:

www.peaceful-marine.com

Korea

Kumho Marine Technology Co. Ltd.
# 604-816, 3F, 1117-34,
Koejung4-Dong, Saha-ku
Pusan, Korea
Ph: [phone]
Fax: [phone]
e-mail: [e-mail]
Website:
www.kumhomarine.com

Malaysia

Advanced Equipment Co.
43A, Jalan Jejaka 2, Taman
Maluri, Cheras 55100, Kuala Lumpur.
Ph: [phone]
Fax: [phone]
e-mail: [e-mail]

Singapore

RIQ PTE Ltd.
Blk 3007, Ubi Road 1,
#02-440, Singapore 408701
Ph: [phone]
Fax: [phone]
HP: [phone]
e-mail: [e-mail]

Thailand

Thong Electronics (Thailand)
Company Ltd.
923/588 Thaprong Road,
Mahachai,
Muang, Samutsakhon 74000,
Thailand.
Ph: [phone]
Fax: [phone]
e-mail: [e-mail]

Vietnam

Haidang Co. Ltd.
16A/A1E, Ba thang hai St.
District 10, Hochiminh City.
Ph: [phone]
Fax: [phone]
e-mail:

[e-mail]

Website: www.haidangvn.com

MIDDLE EAST

Lebanon and Syria

Letro, Balco Stores,
Moutran Street, Tripoli
VIA Beirut.
Ph: [phone]
Fax: [phone]
e-mail: [e-mail]

United Arab Emirates

Kuwait, Oman & Saudi Arabia
AMIT, opp Creak Rd.
Baniyas Road, Dubai.
Ph: [phone]
Fax: [phone]
e-mail: [e-mail]

AFRICA

South Africa

Pertec (Pty) Ltd Coastal,
Division No.16 Paarden Eiland Rd.
Paarden Eiland, 7405
Postal Address: PO Box 527,
Paarden Eiland 7420
Cape Town, South Africa.
Ph: [phone]
Fax: [phone]
e-mail: [e-mail]

EUROPE

France, Belgium and
Switzerland

PLASTIMO INTERNATIONAL
15, rue Ingénieur Verrière,
BP435,
56325 Lorient Cedex.
Ph: [phone]
Fax: [phone]
e-mail: [e-mail]
Website: www.plastimo.fr

Germany

PLASTIMO DEUTSCHLAND
15, rue Ingénieur Verrière
BP435
56325 Lorient Cedex.
Ph: [phone]

[phone]

[phone]
Fax: [phone]
e-mail:

[e-mail]

Website: www.plastimo.de

Italy

PLASTIMO ITALIA
Nuova Rade spa, Via del Pontasso 5
I-16015 CASELLA SCRIVIA (GE).
Ph: [phone]
Fax: [phone]
e-mail: [e-mail]
Website: www.plastimo.it

Holland

PLASTIMO HOLLAND BV.
Industrieweg 4,
2871 JE SCHOONHOVEN.
Ph: [phone]
Fax: [phone]
e-mail: [e-mail]
Website: www.plastimo.nl

United Kingdom

PLASTIMO Mfg. UK Ltd.
School Lane - Chandlers Ford
Industrial Estate,
EASTLEIGH - HANTS S053 ADG.
Ph: [phone]
Fax: [phone]
e-mail: [e-mail]
Website: www.plastimo.co.uk

Sweden, Denmark or Finland

PLASTIMO NORDIC AB.
Box 28 - Lundenvägen 2,
47321 HENAN.
Ph: [phone]
Fax: [phone]
e-mail: [e-mail]
Website: www.plastimo.se

Spain

PLASTIMO ESPAÑA, S.A.
Avenida Narcís Monturiol, 17
08339 VILASSAR DE DALT,
(Barcelona).
Ph: [phone]
Fax: [phone]
e-mail: [e-mail]
Website: www.plastimo.es

Other countries in Europe

PLASTIMO INTERNATIONAL
15, rue Ingénieur Verrière
BP435
56325 Lorient Cedex, France.
Ph: [phone]
Fax: [phone]
e-mail:

[e-mail]

Website: www.plastimo.com

REST OF WORLD /
MANUFACTURERS

NAVMAN NZ Limited
13-17 Kawana St. Northcote.
P.O. Box 68 155 Newton,
Auckland, New Zealand.
Ph: [phone]
Fax: [phone]
e-mail:

[e-mail]

Website:

www.navman.com

63

Made in New Zealand
MN000132 1951318B

MULTI 3100

Lon 174° 44.535`E

Lat 36° 48.404`S

NAVMAN