Navman FUEL 3100 User manual

Installation and
Operation Manual
NAVMAN
www.navman.com
Pilot 3380
A U T O P I L O T
FUEL 3100 (Petrol)
and
DIESEL 3200 (Diesel)
F U E L M O N I T O R S
English ................3
Español .............27
Português .........51
FUEL 3100 DIESEL 3200

Units
This instrument is set up with units of US Gallons, knots and nautical miles.
Please refer to section 2-7 to change the units.
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:
• Re-orient 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.

Contents
1 Introduction ..........................................................................................................................................6
1-1 Typical Installations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1-2 How the flow sensors work . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1-3 Cleaning and maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1-4 Calibration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2 Operation ..............................................................................................................................................7
2-1 Turning on and off . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2-2 The Keys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
2-3 Setting the backlight . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2-4 Upper display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2-5 Lower display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2-6 Fuel and battery alarms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2-7 Fuel gauge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2-8 Changing fuel units . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2-9 Simulation mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
2-10 Key reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10
3 The setup menus .................................................................................................................................. 11
3-1 Setup data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3-2 Initial Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
3-3 Setup Menus and data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
3-4 Fuel calibration (CAL.F) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3-5 Fuel flow damping (dAmP.F) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3-6 Speed input (InPUt) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3-7 Speed damping (dAmP.S) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
3-8 Speed calibration by log (CAL.L) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
3-9 Speed calibration by boat speed (CAL.S) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
4 Installation .......................................................................................................................................... 16
4-1 Tank and engine options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16
4-2 The display unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4-3 The fuel flow sensor(s) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4-4 The speed sensor (optional) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
4-5 Power/data cable wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18
4-6 Systems of several instruments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19
4-7 Testing the installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20
4-8 Resetting to factory defaults . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .20

5 When you add or remove fuel ............................................................................................................... 20
6 Troubleshooting .................................................................................................................................. 21
Appendix A Specifications .......................................................................................................................23
Appendix B Diesel fuel flow sensor hardware ..........................................................................................24
B-1 FUEL 3100 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24
B-2 DIESEL 3200 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
B-3 Other options (FUEL 3100 and DIESEL 3200) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25
Appendix C - Speed through water and over ground ................................................................................ 26

It is the owner’s sole responsibility to install and use the instrument and its sensor(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.
Fuel type: Navman petrol flow sensors (plastic) and FUEL 3100 instruments have been specifically
developed for use in marine applications with petrol (gasoline) inboard and outboard engines and
are not warranted for any other type of application. These sensors and instruments must NOT be
used with petrol EFI engines with a return line to the tank or with diesel engines.
Navman diesel flow sensors (metal) and DIESEL 3200 instruments have been specifically developed
for use in marine applications with diesel engines and are not warranted for any other type of
application. These sensors and instruments must NOT be used with petrol (gasoline) engines.
Fuel formulation: Every effort has been made by the manufacturer to ensure that the materials
used in the Navman fuel flow sensor(s) will operate reliably with different fuel mixtures. The
manufacturer or its distributors can not be held responsible for fuel formulation or any affect this
may have on the performance and durability of the fuel flow sensor(s).
Back pressure: A fuel flow sensor will create additional back pressure in a fuel system:
• In a petrol system (FUEL 3100): 1/2" of mercury at 19.8 US gallons /hour (75 litres/ hour) and 1"
of mercury at 39.5 US gallons per hour (150 litres/ hour).
• In a diesel system (DIESEL 3200): 0.3" of mercury at 25 US gallons /hour (100 litres/ hour) and
1.5" of mercury at 80 US gallons per hour (300 litres/hour).
It is the owners responsibility to ensure that fitting the fuel flow sensor(s) does not cause fuel
starvation which may lead to poor engine performance.
Fuel Computer: Fuel economy can alter drastically depending on the boat loading and sea
conditions. The fuel computer should not be the sole source of information concerning available
fuel onboard and the electronic information should be supplemented by visual or other
checks of the fuel load. This is necessary due to possible operator induced errors such as forgetting
to reset the fuel used when filling the tank, running the engine with the fuel computer not
switched on or other operator controlled actions that may render the device inaccurate. Always
ensure that adequate fuel is carried onboard for the intended trip plus a reserve to allow for
unforeseen circumstances.
Specific requirements: Your boat’s fuel installation boat might be subject to specific requirements
(such as USCG, NMMA and ABYC guidelines or local laws), particularly if the boat is licensed,
surveyed, charted or inspected. It is the owner’s sole responsibility to install and use the instrument
and its sensor(s) in compliance with these requirements.
NAVMAN NZ LIMITED DISCLAIMS ALL LIABILITY FOR ANY USE OF THIS PRODUCT IN A WAY THAT
MAY CAUSE ACCIDENTS, DAMAGE OR THAT MAY VIOLATE THE LAW.
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.
This manual represents the FUEL 3100 and DIESEL 3200 as at the time of printing. Navman NZ
Limited reserves the right to make changes to specifications without notice.
Copyright © 2004 Navman NZ Limited, New Zealand. All rights reserved. Navman is a registered
trademark of Navman NZ Limited.
Important

6FUEL 3100 / DIESEL 3200 Installation and Operation Manual
NAVMAN
This manual describes two different Navman
marine fuel instruments:
• The FUEL 3100, which is installed with the
separate petrol/ gasoline flow sensor kit,
and measures petrol consumption.
• The DIESEL 3200, which is installed with
the separate diesel flow sensor kit, and
measures diesel consumption.
This manual describes how to install, set up and
operate the instruments. For more information,
refer to the separate Flow Sensor Installation
Manual (for the FUEL 3100 and petrol systems)
and Diesel Flow Sensor Installation and
Operation Manual (for the DIESEL 3200 and
diesel systems); this manual has extensive
information on understanding and optimising
your diesel boat’s performance.
The FUEL 3100 or DIESEL 3200 measures and
displays the fuel flow in real time for a single or
twin engine boat. It can calculate and display
the amount of fuel used, the amount of fuel
remaining and the fuel flow rate.
If an optional speed sensor or speed
instrument is connected, the unit can also
1 Introduction
show the fuel economy, boat speed and the
trip log and total logs.
Knowing the fuel economy can help determine
the optimum throttle settings and maximize
fuel savings. With twin engine boats,
comparison between the flow rates of each
engine can be used to achieve maximum
synchronisation.
It is essential to update the fuel readings in
the FUEL 3100 or DIESEL 3200 after a partial or
full refill, or after manually removing fuel, to
maintain accurate readings (see section 5).
The FUEL 3100 and DIESEL 3200 are part of
the Navman family of instruments for boats,
which includes instruments for speed, depth,
wind and repeaters. These instruments can be
connected together, using NavBus or NMEA, to
form an integrated data system for a boat.
Information in this manual applies to both the
FUEL 3100 and the DIESEL 3200 unless noted. It
is vital to read this document and the Navman
instrument’s installation and operation manual
before installing or using this kit.
Power supply
Sensor wiring
Connection to other
instruments (optional)
Petrol tank
Diesel tank
Diesel engine
Tachometer pickup
Power supply
Sensor wiring
Connection to other
instruments (optional)
Diesel flow
sensor Diesel flow sensor
Petrol flow sensor
Petrol engine
1-1 Typical Installations
FUEL 3100 System
DIESEL 3200 System
In a twin engine system, each
engine has its own sensor(s)

7
FUEL 3100 / DIESEL 3200 Installation and Operation Manual NAVMAN
2 Operation
The unit has four keys, ESC, ENT, and .
In this manual:
• Press means push the key for less than one
second.
• Hold means hold the key down until the
display changes.
In general:
• Press to change what is displayed in the
upper display.
In a setup menu, press or hold to
increase the setting.
• Press to change what is displayed in the
lower display.
Petrol flow sensor (FUEL 3100): The petrol
flow sensor is fitted in the fuel line between the
fuel tank and the engine. A small turbine inside
the fuel flow sensor measures the rate of the
fuel flow into the engine. This information is
relayed through the fuel flow sensor cable and
shown electronically on the display unit.
Diesel flow sensor (DIESEL 3200): A diesel
sensor is a positive displacement flowmeter,
with one moving internal part, made of low
friction, fuel proof plastic. There are no fine
pointed shafts and jewelled bearings to get
worn or hammered by diesel pulsing.
Each engine is fitted with two fuel flow
sensors, to measure fuel supply and return.The
system calculates the engine consumption,
compensating for pulsing from diaphragm
lift pumps, different fuel temperatures in
the supply and return lines and the flow
characteristics of the sensors.
Clean the display unit and any plastic sensor
with a damp cloth or mild detergent. Avoid
abrasive cleaners, petrol or other solvents.
1-2 How the flow sensors work
1-3 Cleaning and maintenance
1-4 Calibration
Put the protective cover over the display when
it is not being used.
FUEL 3100: It is essential to calibrate the fuel
flow sensors after installation and again after
the first 100 engine hours to allow moving
parts to wear in (see section 3-4).
DIESEL 3200: The sensors are factory
calibrated and are highly accurate. They can be
calibrated but this should not be necessary.
2-2 The Keys
2-1 Turning on and off
The display unit does not have its own power
switch, but if possible should be wired so that it
turns on when the engine ignition is turned on
to allow the engine hours counter to function
properly. (See section 4 -5).
Turn the unit on and off with the boat’s ignition
switch. The display unit does not have its own
power switch. When the unit it is turned off,
any settings you have made are retained.
If SIM flashes at the bottom left corner of the
display, the unit is in simulation mode (see
section 2-9).
In a setup menu, press or hold to decrease
the setting.

8FUEL 3100 / DIESEL 3200 Installation and Operation Manual
NAVMAN
2-4 Upper display
Press one or more times to change what is
displayed (for example, if the display shows
USED then press to change the display to
FLOW):
• REMAINING: Fuel remaining. Update this
when you add or remove fuel (see section 5).
• USED : The fuel used since last reset.
To reset fuel used, press one or more
times until used is displayed, then hold ENT
and together until the reading resets
to zero.
• : Displays supply voltage to the head unit.
• FLOW: Fuel flow rate.
• ECONOMY: Distance travelled per unit of
fuel used (requires optional speed input, see
section 3-6)
• RPM: Engine RPM (DIESEL 3200 only).
PORT RPM: Port engine RPM (displayed on
upper display)
STBD RPM: Starboard engine RPM
(displayed on lower display)
Note:
• If the boat has twin engines, then when
FLOW is displayed, press ENT one or more
times to display PORT, STBD or TOTAL
flow.
• If the boat has a twin fuel tanks, then when
REMAINING or USED is displayed, press
ENT one or more times to display PORT,
STBD or TOTAL data.
2-5 Lower display
Press one or more times to change what
is displayed:
• LOG: Trip distance; the distance travelled
since log was reset.
To reset log, press one or more times
until log is displayed, then hold ENT and
together until the reading resets to zero.
• TOTAL LOG: Total distance; the distance
travelled since total log was reset.
To reset total log, press one or more
times until total log is displayed, then hold
ENT and together until the reading
resets to zero.
• hours: Hours the engine has run since
hours was reset.
To reset hours, press one or more times
until hours is displayed, then hold ENT and
together until the reading resets to zero.
• RANGE: Estimated distance that can be
travelled on the remaining fuel at the
current consumption.
• SPEED: Boat speed.
Note:
• LOG, TOTAL LOG, RANGE and SPEED
require the optional speed input (see
section 3-6).
The display and keys are backlit for easy
reading in dim light. To change the backlight,
change LAmP in the LAmP menu.
(see section 3-3)
2-3 Setting the backlight

9
FUEL 3100 / DIESEL 3200 Installation and Operation Manual NAVMAN
2-8 Changing fuel units
1 Press until REMAINING, USED, FLOW or
ECONOMY are displayed.
2 Hold one or more times to change fuel
units.
Note:
When “gal” is displayed, this could be US
gallons or imperial gallons. Check the units
menu to confirm and change if required
(see FUEL UnItS in the UnItS menu,
section 3-3).
Changing distance and speed units
1 Press until LOG, TOTAL LOG, RANGE
or SPEED are displayed.
2 Hold one or more times to change
distance and speed units.
2-7 Fuel gauge
Displays fuel remaining in the tank(s). If the
boat has twin tanks, the gauge shows both
tanks; the left side is the port tank and the right
side the starboard tank:
Single tank Twin tanks
Full
Port tank
almost full
Starboard tank
almost empty
2-6 Fuel and battery alarms
The unit has two alarms:
• Low fuel: Alarm sounds when the fuel left
in the tank becomes less than the alarm
value.
• Low battery: Alarm sounds when the
battery voltage becomes less than the
alarm value.
To turn the alarms on and off and to set the
alarm values, see section 3-3. When an alarm
sounds, the symbol flashes, the internal
beeper sounds and any external beepers or
lights operate. For a low fuel alarm the fuel
gauge flashes.
Press ESC to mute the alarm.
alarm symbol
2-9 Simulation mode
Simulation mode allows the user to become
familiar with the FUEL 3100 off the water. In
Simulation mode, the FUEL 3100 generates
data internally and ignores input from the
sensor. The word SIM flashes at the bottom left
corner of the display.
To turn Simulation mode on or off:
1 Turn the power off.
2 Hold ESC while turning the power on.
Almost
Empty

10 FUEL 3100 / DIESEL 3200 Installation and Operation Manual
NAVMAN
Hold ENT +
for 5 s to reset
TOTAL LOG
Press ENT + to
reset USED
2-10 Key reference
FUEL
REMAINING
FUEL USED
FUEL FLOW
FUEL
ECONOMY*
LOG *
TOTAL
LOG*
hours
RANGE*
SPEED*
Hold ENT +
for 5 s to reset
hours
Press ENT +
to reset LOG
Press +
when tank filled
Press
+
when tank
filled
When USED
displayed,
press
ENT + to
reset USED
Reset to factory defaults
Turn Simulation mode On
or OFF
*Hold ENT +
Upper display
Press to change what is displayed
PORT
STBD
TOTAL
PORT
STBD
TOTAL
Single tank
Hold ESC
Lower display Press to change what is displayed
When unit is
turned on
Main display
RPM PORT
RPM STBD
Twin engines
press ENT to
display:
RPM
Diesel only
PORT and STBD
* denotes must have speed input (see section 3-6)
*Hold ENT + for at
least 5 seconds.
Twin engines
press ENT
to display:
Twin engines
press ENT
to display: