Navman MULTI 3100 User manual

1
MULTI 3100 Installation and Operation Manual
NAVMAN
English .............2
Français .........18
Español ..........33
Português ......48
NAVMAN
Installation and
Operation Manual
www.navman.com
MULTI 3100
DRAFT
Approved by translator
Approved by Plastimo
This document is still under review and is subject to change.
Each completed stage to be marked with 

2NAVMAN MULTI 3100 Installation and Operation Manual
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.

3
MULTI 3100 Installation and Operation Manual
NAVMAN
Contents
1 Introduction ..................................................................................................... 5
2 Operation ......................................................................................................... 6
2-1 Turn on and off ............................................................................................................ 6
2-2Basic operation............................................................................................................ 6
2-3Change units ............................................................................................................... 6
2-4Alarms ......................................................................................................................... 6
2-5Simulatemode............................................................................................................. 6
2-6Keyreference .............................................................................................................. 7
3 Speed, average speed, maximum speed, trim speed .................................. 8
3-1Set speed andlogunits ............................................................................................... 8
3-2Resetaveragespeed ................................................................................................... 8
3-3Resetmaximumspeed ................................................................................................ 8
3-4Reset trim speed ......................................................................................................... 8
3-5Set speeddamping...................................................................................................... 8
3-6Set speedresolution .................................................................................................... 8
3-7Calibratespeed ........................................................................................................... 8
4 Log and total log ............................................................................................. 9
4-1Reset log ..................................................................................................................... 9
4-2Reset totallog.............................................................................................................. 9
5 Depth, keel offset, too deep alarm, too shallow alarm ............................... 10
5-1Set depth units .......................................................................................................... 10
5-2Set toodeep alarm..................................................................................................... 10
5-3Set tooshallow alarm................................................................................................. 10
5-4Anchorwatch............................................................................................................. 10
5-5Set keel offset............................................................................................................ 10
6 Temperature....................................................................................................11
6-1Set temperatureunits ................................................................................................ 11
6-2Calibratetemperature ................................................................................................ 11
7 Countdown timer ............................................................................................11
7-1Startcountdowntimer ................................................................................................ 11
7-2Stopandreset countdowntimer................................................................................. 11
7-3Adjuststarttime......................................................................................................... 11
8 Systems of several instruments .................................................................. 12
8-1NMEA ....................................................................................................................... 12
8-2NavBus ..................................................................................................................... 12
9 MULTI 3100 hardware.................................................................................... 12
9-1Whatcomes with your MULTI 3100 ........................................................................... 12
9-2Other partsrequired .................................................................................................. 12
9-3Transducers .............................................................................................................. 13
9-4Accessories............................................................................................................... 13

4NAVMAN MULTI 3100 Installation and Operation Manual
10 Installation and setup.................................................................................. 13
10-1Installation ............................................................................................................... 13
10-2Setup....................................................................................................................... 15
10-3Resetting tofactorydefaults .................................................................................... 15
Appendix A - Specifications ............................................................................ 15
Appendix B - Troubleshooting ........................................................................ 16
Appendix C - How to contact us ..................................................................... 63
Important
Itistheowner’s sole responsibility toinstallandusethe instrument and transducer/sinamannerthat will
not cause accidents, personal injury or property damage. The user of this product is solely responsible
for observing safe boating practices.
NAVMAN NZLIMITEDDISCLAIMSALLLIABILITYFORANYUSEOFTHIS PRODUCTINAWAYTHAT
MAY CAUSEACCIDENTS, DAMAGE OR THAT MAYVIOLATE THE LAW.
ThismanualrepresentstheMULTI 3100 as at the time of printing. Navman NZ Limited reserves the right
to make changes to specifications without notice.
GoverningLanguage:Thisstatement,any instructionmanuals,userguidesand otherinformationrelating
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©2002NavmanNZLimited,NewZealand.Allrightsreserved.NAVMANisaregisteredtrademark
of Navman NZ Limited.
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.

5
MULTI 3100 Installation and Operation Manual
NAVMAN
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 parts:
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, whichtravels downthroughthewater.
Whenthe pulsemeetsthebottom, someofthepulse
isreflectedbackuptowards theboatandisreceived
by the transducer.
The display unit analyses the reflections from each
pulse.Itremovesunwantedreflections(frombubbles
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.
Thetransducermeasures howfastthe 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.
Whenrepaintingthe hull,coverorremoveanyvisible
transducers.Depthtransducersmay be coatedwith
a thin layer of antifouling paint; gently sand off any
previous paint first.
Donotuse ahighpressure waterblastonthe speed
transducer paddlewheel as it may damage the
bearings.
1 Introduction
Alarm symbol
Display
(backlit)
Fourkeys
(backlit)
Top part of display,
(showing boat speed)
Bottom part of display,
(showing water depth)
The MULTI 3100 display unit
111 x 111 mm
(4.4"x4.4")

6NAVMAN MULTI 3100 Installation and Operation Manual
2-1 Turn on and off
Turntheunitonandoffwiththeauxiliarypowerswitch
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
bothkeystogether.
Set backlight level for screen and keys
You can set the backlight to one of four brightness
levels or off. Press once to display the current
backlight level, press again to change the level:
Change the items displayed
Thedisplaycanshow two values atonce,onein the
top part of the screen and one in the bottom. If an
item displays as dashes (— —) then it means that
thevalueisoutsidetherange,for examplethedepth
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.
Avgspeed.
Maxspeed.
Trim speed.
Depth.
Temperature.
To change the value displayed in the bottom part of
the screen, press one or more times to select:
Speed.
Depth.
Trip log (distance).
Total log (distance).
Batteryvoltage.
Countdown timer.
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
TheMULTI3100 canbeset tosoundan alarmwhen
the water is too deep or too shallow (see sections
5-2 and 5-3). When the alarm sounds, the internal
beepersounds,the symbolonthe displayflashes
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
3100functionsnormally exceptthatthe transducers
areignoredandtheunitgeneratesthisdatainternally.
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.
2 Operation
Backlight
Level2

7
MULTI 3100 Installation and Operation Manual
NAVMAN
Hold
2 sec
Hold
2 sec
+
+
+
Hold
Hold
+
5 sec
Hold 2 sec
Increase
valueor
change
setting
Decrease
valueor
change
setting
Turn Simulate
on or off
Reset memory
Change units of bottom value
(e.g. knots, metres)
Change units of top value
(e.g. knots, metres, °C)
Reset bottom value to zero
(Log, Total log (hold for 5 sec)
Start or stop countdown timer)
Reset top value to zero
(Avgspeed,Maxspeed,
Trim speed)
Adjust backlight
(4 levels or off)
Mute an alarm
Change bottom display
(Speed, Depth, Log, Total log,
Batteryvoltage,Countdown
timer)
Change top display
(Speed,Avgspeed,Max
speed, Trim speed, Depth,
Temperature)
SetSpeed
Resolution
SetSpeed
Calibration
Set Temperature
Calibration
Set Keel Offset
SetCountdown
Timer Start Time
SetSpeed
Damping
Set Too
Shallow alarm
Set Too Deep
alarm
Hold
2 sec
Return to
normal
operation
Return to
normal
operation
Increase
alarm
depth
Hold
2 sec
+
2-6 Key reference
Setup
Set alarms Turn
alarm
on or off
Turn power on
Normaloperation
Set Log
Calibration
Set Backlight
Group
Decrease
alarm
depth
SetSpeed Mode
Sen(sor) or GPS
+
+
+
+
+
+
+
+
Mode
is GPS
Mode
is SEn

8NAVMAN MULTI 3100 Installation and Operation Manual
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
Thespeedunitscanbeselected tobeKNOTS, 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
averagespeed:
1 Press until AVG SPEED is displayed.
2 Press + .
3-3 Reset maximum speed
Resetting makes the MULTI 3100 calculate a new
maximum:
1 Press until MAX SPEED is displayed.
2 Press + .
3-4 Reset trim speed
Resetting sets the trim speed to zero:
1 Press until TRIM SPEED is displayed.
2 Press + .
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.
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 + several times until the Speed
Damping screen is displayed:
2 Press or to change the damping.
3 Press .
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 + several times until the Speed
Resolution screen is displayed:
2 Press or to change the resolution setting
to 0.0 or 0.00.
3 Press .
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.
Damping
equals 3
Value
equals
0.0 or 0.00

9
MULTI 3100 Installation and Operation Manual
NAVMAN
Calibrate by speed
Inthismethod,travelatameasured,constantspeed.
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
above5knots.
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).
Continuetravelling atthismeasured,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):
2 Press or to change the displayed speed
to the measured boat speed.
3 Press .
Measured
speed
Calibrate by log
In this method, travel a known distance in a straight
lineovera course.Bestresults areachievedin 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:
4 Press or to change the displayed
distance travelled to the actual distance you
travelled over the course.
5 Press .
Distance
travelled
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:
The log units are NM, KM or M (miles) and
correspondtothespeedunits,forexampleifyou 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 until LOG is displayed.
2 Press + .
4-2 Reset total log
Resetting zeros the total log (total distance), as well
as the log and avg speed:
1 Press until TOTAL LOG is displayed.
2 Hold + for 5 seconds.
Total log

10 NAVMAN MULTI 3100 Installation and Operation Manual
5 Depth, keel offset, too deep alarm, too shallow alarm
Depth and keel offset
Thedisplayeddepthisthedistancefromthetransducer
ontheboattothebottomofthewater,plusorminusan
offset which is called the keel offset:
Apositive keel offset 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
Deep
alarm
value
Alarm
is on
Shallow
alarm
value
Alarm
is off
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.
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 .
To set the too deep alarm:
1 Hold for two seconds to display the Too
DeepAlarm screen:
2 To change the alarm depth, press or .
3 To turn the alarm on or off, press .
4 Press .
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 DeepAlarm screen, hold for two
seconds to display theToo ShallowAlarm screen:
2 To change the alarm depth, press or .
3 To turn the alarm on or off, press .
4 Press .
5-4Anchor watch
To 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
Keeloffsetisdescribedabove.The range is ± 2.9 m
(± 9.6 ft, ± 1.6 fathoms):
1 Press + several times until the Keel
Offset screen is displayed:
2 Press or to change the keel offset.
3 Press .
Keel
offset
(negative)
Positivevalue
Keel offset
Negativevalue
Transducer
Depth of transducer
Water surface
Keel offset
Note: The boat illustrated uses a through hull transducer

11
MULTI 3100 Installation and Operation Manual
NAVMAN
6 Temperature
Temperature 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
Theunit isfactorycalibratedandshouldnotnormally
need calibrating. To calibrate:
1 Measure the water temperature near the speed
transducer.
2 Press + several times until the
Temperature Calibration screen is displayed:
3 Press or to change the temperature to
the value measured in step 1 above.
4 Press .
Water
temperature
7 Countdown timer
Youcanadjust thecountdowntimertostartcounting
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:
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
exactminute.
Timer
counting
down
Countdown
timer symbol
flashes
7-1 Start countdown timer
The timer starts at the start time (to adjust the start
time, see section 7-3).
1 Press until the countdown timer is
displayed.
2 Press + . The timer displays On briefly
and starts counting down from the start time.
Timer
start time
is 9 min
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).
7-3Adjust start time
1 Press + several times until the
Countdown Timer Start Time screen is displayed:
2 Press or to set the start time in minutes.
3 Press . The timer does not start now (to start
the timer, see section 7-1).

12 NAVMAN MULTI 3100 Installation and Operation Manual
Several NAVMAN instruments can be connected
together during installation to share data.There are
twowaysofconnectinginstrumentstogether,NavBus
orNMEA.
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
(egREPEAT3100)orotherNMEAinstrument.Speed
(RMC) can be received via NMEA and displayed by
the MULTI 3100 (see section 10-1 for wiring).
IfanexternalRMC (speed) input isavailablefroma
GPS instrument, then you can set up the MULTI
3100 to use this for speed readings (see section
10-2, step 2); Note:
Aspeed from a paddlewheel sensor is the
speed that the boat is moving through the
water.Aspeed 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 Systems of several instruments8-2 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
areaffected.
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
readingsfromanotherinstrument,viaNavBus,ifthe
data is available.
Formoreinformation,refertotheNavBusInstallation
and Operation manual.
9 MULTI 3100 hardware
The MULTI 3100 comes in several configurations.
Standaloneconfiguration
MULTI3100unitwithprotective cover.
Warranty card.
Mountingtemplate.
This Installation and Operation Manual.
Inaddition,thestandaloneconfigurationusuallyrequires
adepthtransducerandaspeed/temperaturetransducer
(see section 9-3).
Kit configuration
TheMULTI3100isavailableinseveralkitconfigurations
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.
9-1 What comes with your MULTI 3100 9-2 Other parts required
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
andoff.
Afuse. Use a 1Afuse for between one and five
instruments.
Optionalexternalbeepersorlightscanbefitted.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 OperationManual).

13
MULTI 3100 Installation and Operation Manual
NAVMAN
Through hull
speed transducer
skin fitting
4 m speed
transducer extension
cable
Through hull speed
paddlewheel
9-4 Accessories
These accessories are available from your NAVMAN dealer.
4 m depth
transducer
extension cable
NavBus junction
Box (See section 8)
9-3 Transducers
The MULTI 3100 is usually used with a through hull
depthtransducerandaseparatethroughhullspeed/
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.
10 Installation and setup 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
throughhull transducersareusually unsuitable
for wood hulls. If in doubt, consult a marine
surveyor or marine engineer.
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 NMEAdata from other
instruments.
Warnings
Theunit iswaterprooffromthefront.Protecttherear
of the unit from water, or else water might enter the
breathing hole and damage the unit. The warranty
doesnotcoverdamagecausedbymoistureorwater
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.
10-1Installation
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
radarantenna.

14 NAVMAN MULTI 3100 Installation and Operation Manual
Power/data cables
Junctionbox
Junctionbox
Power & data
connections
Power/data cable
NavBus cable
Group 1
Group 2
Power & data
connections
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.
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 Afor up to
five instruments.
If the external beepers and lights require
more than 250 mADC 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.
10-2 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
Black 12 V DC
power
Red Switch Fuse
External beepers or
lights (optional)
NMEA in (GPS, optional)
NMEA out (optional)
Depth transducer
White
Green
Yellow
Orange
Blue
Speed/temperature transducer
Cables Clearance
50 mm (2") minimum
20 mm (0.75")
maximum thickness Fixing nut
Display
unit
Fixing hole
50 mm (2")
Side view of display unit mounting
NavBus (optional)
}
-
+

15
MULTI 3100 Installation and Operation Manual
NAVMANNAVMAN
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:
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).
10-3 Resetting to factory defaults
Allsettingsmayberesettothemanufacturer’sdefault
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 units.....................................°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

16 NAVMAN MULTI 3100 Installation and Operation Manual
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,
10000up.
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).
Appendix A - Specifications 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
NavBusconnectiontootherNAVMAN
instruments.
NMEA0183 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-NZS3548.
Environment: IP66 from front when correctly
mounted.
Power/data cable wires
Wire Signal
Red Power positive, 12 V DC, 200 mA
maximum
Black Powernegative,NMEA common
Green External beeper or light out, switched to
ground, 30 V DC and 250 mA max.
Orange NavBus+
Blue NavBus-
White NMEAout
Yellow NMEAin

17
MULTI 3100 Installation and Operation Manual
NAVMAN
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 unitmust only be carried
out by a service centre approved by NAVMAN NZ
Limited. Users who service the unit themselves will
voidthewarranty.
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 Speed/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.

63
MULTI 3100 Installation and Operation Manual
NAVMAN
NORTH AMERICA
NAVMAN USA INC.
18 Pine St. Ext.
Nashua, NH 03060.
Ph: [phone]
Fax: [phone]
e-mail: [email protected]
OCEANIA
New Zealand
Absolute Marine Ltd.
Unit B, 138 Harris Road,
East Tamaki, Auckland.
Ph: [phone]
Fax: [phone]
e-mail:
[email protected]
Australia
NAVMAN AUSTRALIA PTY
Limited
Unit 6 / 5-13 Parsons St,
Rozelle, NSW 2039, Australia.
Ph: [phone]
Fax: [phone]
e-mail: [email protected]
SOUTH AMERICA
Argentina
HERBY Marina S.A.
Costanera UNO,
Av Pte Castillo Calle 13
1425 Buenos Aires, Argentina.
Ph: [phone]
Fax: [phone]
e-mail:
[email protected]
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]
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:
[email protected]
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: [email protected]
Website:
www.kumhomarine.com
Malaysia
Advanced Equipment Co.
43A, Jalan Jejaka 2, Taman
Maluri, Cheras 55100, Kuala Lumpur.
Ph: [phone]
Fax: [phone]
e-mail: [email protected]
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: [email protected]
Vietnam
Haidang Co. Ltd.
16A/A1E, Ba thang hai St.
District 10, Hochiminh City.
Ph: [phone]
Fax: [phone]
e-mail:
[email protected]
Website: www.haidangvn.com
MIDDLE EAST
Lebanon and Syria
Letro, Balco Stores,
Moutran Street, Tripoli
VIA Beirut.
Ph: [phone]
Fax: [phone]
e-mail: [email protected]
United Arab Emirates
Kuwait, Oman & Saudi Arabia
AMIT, opp Creak Rd.
Baniyas Road, Dubai.
Ph: [phone]
Fax: [phone]
e-mail: [email protected]
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: [email protected]
EUROPE
France, Belgium and
Switzerland
PLASTIMO INTERNATIONAL
15, rue Ingénieur Verrière,
BP435,
56325 Lorient Cedex.
Ph: [phone]
Fax: [phone]
e-mail: [email protected]
Website: www.plastimo.fr
Germany
PLASTIMO DEUTSCHLAND
15, rue Ingénieur Verrière
BP435
56325 Lorient Cedex.
Ph: [phone]
[phone]
[phone]
Fax: [phone]
e-mail:
[email protected]
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: [email protected]
Website: www.plastimo.it
Holland
PLASTIMO HOLLAND BV.
Industrieweg 4,
2871 JE SCHOONHOVEN.
Ph: [phone]
Fax: [phone]
e-mail: [email protected]
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: [email protected]
Website: www.plastimo.co.uk
Sweden, Denmark or Finland
PLASTIMO NORDIC AB.
Box 28 - Lundenvägen 2,
47321 HENAN.
Ph: [phone]
Fax: [phone]
e-mail: [email protected]
Website: www.plastimo.se
Spain
PLASTIMO ESPAÑA, S.A.
Avenida Narcís Monturiol, 17
08339 VILASSAR DE DALT,
(Barcelona).
Ph: [phone]
Fax: [phone]
e-mail: [email protected]
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:
[email protected]
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:
[email protected]
Website:
www.navman.com
Appendix C - How to contact us www.navman.com

Lon 174° 44.535`E
Lat 36° 48.404`S
Made in New Zealand
MN000132 1951318B
NAVMAN
MULTI 3100