Navman FISH 4200 Operation Manual

FISH 4200

FISHFINDERS

Installation and

Operation Manual

www.navman.com

NAVMAN

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.

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NAVMAN

FISH 4200 Installation and Operation Manual

Contents

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

2 Getting started ................................................................................................. 6

2-1 Simulation Mode .......................................................................................................... 7

3 Operation ......................................................................................................... 7

3-1 ALARMS ..................................................................................................................... 8

3-2 HISTORY screen operation ......................................................................................... 8

3-3 HISTORY screen interpretation ................................................................................... 9

3-4 ZOOM screen ........................................................................................................... 12

3-5 SONAR screen ......................................................................................................... 12

3-6 NAVIGA TE screen .................................................................................................... 13

3-7 DAT A screen ............................................................................................................. 14

3-8 FUEL screen................................................................................................................14

3-9 RANGE menu ........................................................................................................... 15

4 SETUP menu.................................................................................................. 16

4-1 ALARMS menu.......................................................................................................... 16

4-2 UNITS menu ............................................................................................................. 18

4-3 KEY BEEP ................................................................................................................ 18

4-4 FISH SYMBOL.......................................................................................................... 18

4-5 CONTRAST menu .................................................................................................... 18

4-6 LOG menu .............................................................................................................. .... 19

4-7 FUEL menu..................................................................................................................19

4-8 INSTALL menu.......................................................................................................... 20

4-9 CALIBRATION menu ................................................................................................ 21

4-10 Resetting to Factory Defaults................................................................................... 22

5 Installation ..................................................................................................... 23

5-1 What comes with the FISH 4200? ............................................................................. 23

5-2 Options and accessories ........................................................................................... 23

5-3 Mounting the FISH 4200 display unit ......................................................................... 23

5-4 Wiring Connection..................................................................................................... 24

5-5 Connecting the FISH 4200 to other instruments ........................................................ 25

Appendix A - S pecifications ............................................................................ 26

Appendix B - Troubleshooting............................................................................... 27

Appendix C - How to contact us..........................................................................30

NAVMAN fishfinders are set up with default units of feet, °F (Fahrenheit) and knot s.
Please refer to section 4-2 of this manual to change the units.

NAVMAN

3FISH 4200 Installation and Operation Manual

Important

It is the owner’s sole responsibility to install and use the instrument and transducers 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 A NY USE OF THIS PRODUCT IN A W A Y THA T
MAY CAUSE ACCIDENTS, DAMAGE OR THA T 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.

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.

This manual represents the FISH 4200 as at the time of printing. Navman NZ Limited reserves the right to
make changes to specifications without notice.

Copyright © 2002 Navman NZ Limited, New Zealand, all rights reserved. NAVMAN is a registered trademark
of Navman NZ Limited.

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NAVMAN

FISH 4200 Installation and Operation Manual

1 Introduction

Congratulations on choosing a NAVMAN fishfinder .
For maximum benefit, please read this manual
carefully before installation and use.

This manual describes the installation and operation
procedures for the FISH 4200.

The NAVMAN Fishfinder

The FISH 4200 is an ultrasonic fishfinder with four
levels of greyscale. It provides powerful software and
a large, high-resolution screen with a zoom facility
and a choice of fish symbols. As well as detecting
fish, the FISH 4200 measures the water depth, water
temperature and boat speed.

It also measures the battery voltage, engine hours,
and fuel consumption (requires optional fuel kit), and
has two distance logs (Trip Log and Tot al Log).

An installed FISH 4200 has two parts:

- the transducer attached to the hull

- the display unit.
The transducer generates an ultrasonic pulse (sound
that is above the hearing range of the human ear),
which travels down towards the bottom, spreading
out into a cone shape. When the pulse meets an
object, such as a fish or the bottom, some of the
pulse is reflected back up towards the boat and is
received by the transducer. The depth of an object
can be calculated by measuring the time between
sending the pulse and receiving its echo. The
NAVMAN FISH 4200 will detect the bottom down to
600 feet (180 metres), depending on the clarity of
the water and the type of transducer used.

The strength of an echo can vary for a number of reasons.
Larger fish usually return stronger echoes, and so do
fish in the middle of the cone, where the pulse is
strongest. Reasons for weak echoes include the fish or
object being in deep water, turbid water or in the edge of
the cone where the pulse is weakest. Turbid water
scatters the ultrasonic pulse and is difficult to ‘see’
through. Turbidity can be caused by air in the water (e.g.
from another boat's wake) or by mud in the water.

Important

It is vital to the performance of the fishfinder that
the transducer is installed in the best location.
Please follow the instructions in the Transducer
Installation manual very carefully.

All of the NAVMAN 4000 Series fishfinders use new
proprietary SBN Technology for sonar processing to
improve signal enhancement, bottom recognition & noise
rejection. SBN Technology uses the latest in digital
adaptive filter algorithms to enhance all returned signals.
At the same time, SBN Technology uses active noise

control to reject interference, which can often be
mistaken by fishfinders for true returns. Using SBN
Technology, the FISH 4200 analyses the reflections
from each pulse, filters false returns, and displays what
is in the water under the boat.

The distinctions between the four levels of shading
help the user to better interpret what is in the water
and what type of bottom is under the boat.

Assisting with navigation

The FISH 4200 can be used to find fish, to locate
features on the bottom such as reefs or wrecks,
and to help recognise favourite fishing spots from
the profile of the bottom. Use the NAVMAN
fishfinder to assist navigation by following the depth
contours marked on charts.

IMPORT ANT NOTE ON USE. While any fishfinder
can be used as an aid to navigation, accuracy can
be influenced by many factors including the location
of the transducer. It is the user’s responsibility to
ensure that the FISH 4200 is installed and used
correctly.

How to find fish

Underwater features like reefs, wrecks and rocky
outcrops attract fish. Use the FISH 4200 to find these
features, then look for fish by passing over the feature
slowly several times using the ZOOM screen (see
section 3-4). Where there is a current, the fish will
often be found downstream of the feature.

For deep-sea fishing with the FISH 4200, a rapid
change in temperature may indicate the edge of a
warm or cold current. The temperature difference
can form a barrier, and the fish may not swim through
this. Search for fish on either side of the barrier.

Cleaning and maintenance

The FISH 4200 should be cleaned with a damp
cloth or mild detergent. A void abrasive cleaners and
petrol or other solvents. Always cover or remove a
transom-mounted transducer when repainting the
hull. If painting over a through hull transducer with
antifouling paint then use only one coat of paint.
When repainting the transducer, remove previous
coats of antifouling paint by sanding it lightly .

When not in use, the FISH 4200 can either be
removed from the installation bracket and stored
in a safe, dry, cool place such as the NA VMAN carry
bag, or left on the installation bracket and securely
covered with the sun cover supplied.

NAVMAN

5FISH 4200 Installation and Operation Manual

2 Getting started

Power and transducer connection

The FISH 4200 has two sockets located on the rear of
the unit. The power cable has a black 8 pin LT
connector plug. Push this plug into the lower socket,
which has a black nut and is located on the rear of the
display unit, then turn the collar to lock. Make sure
that the collar is secure for a watertight connection.

The transducer cable has a blue 8 pin LT connector
plug. Push this plug into the upper socket, which has
a blue nut and is located on the rear of the display
unit, then turn the collar to lock. Make sure that the
collar is secure for a watertight connection.

If the transducer is not connected, the message “NO
TRANSDUCER DETECTED. ENTER SIMULATION
MODE?” will appear. Press
or NO. (More information on the simulation mode can
be found in the following section). Press
confirm the selection and the startup sequence will
continue. (Note: If the transducer was not intentionally
disconnected, turn the display unit off and refer to the
section on Troubleshooting in Appendix B.)

Names of keys:

Cursor key

gain key

+

gain key

-

Power key

Definition of Press and Hold in this manual:

· Press means to push the key for less than one

second.

· Hold means to push and hold the key down for

more than one second.

Power on

To turn the fishfinder on press .

Note: if the unit is wired for Auto Power (see section
5-4) the fishfinder will turn on automatically when
the boat's ignition is turned on.

to switch between YES

to

key

A title screen briefly appears which displays basic
product information, including the software version.

The FISH 4200 then automatically displays the
screen that was last used.

Power off

T o turn the fishfinder of f, hold . A countdown box
appears. Continue to hold

the fishfinder turns off.

Note: if the unit is wired for Auto Power (see
section 5-4) the fishfinder can only be turned off
when the boat’s ignition is turned off.

for three seconds until

Language selection

To check which language is currently selected,
press

Follow these steps to change the language:

For further information, see section 4-8.

to display the MAIN MENU.

1. Power off the unit.

2. While the unit is off, hold down the

3. Keep holding down the key and power
on the unit.

4. The screen displays a list of languages.
Press the Cursor or key to highlight a
language, then press the Cursor key to
select it. The fishfinder will continue the
startup sequence.

key.

Backlighting

Use the button to adjust the backlighting to suit
individual preferences.

Press

once, at any time, to see the backlight
bar. This is displayed at the bottom of the screen
and shows the current setting.

Press

repeatedly until the desired backlighting
level is achieved. The backlight bar will disappear
2 seconds after the last press.

Fuel Computer

With an optional fuel kit the FISH 4200 becomes a
sophisticated yet easy to use fuel computer.

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NAVMAN

FISH 4200 Installation and Operation Manual

2-1 Simulation Mode

An internal simulator allows users to learn how to
operate the fishfinder off the water.

In Simulation mode the word “SIMULATION” flashes
on the bottom of the screen. The fishfinder generates
data so that all the main screens appear to be
operational. Any changes made to the contrast,
backlighting, alarms or the display setup are saved.

3 Operation

MAIN MENU screen

The FISH 4200 is menu driven. Press to
display the MAIN MENU screen.

Press or
an option, then press
to select it.

The MAIN MENU options
are summarized below
and fully explained in the
following sections.

Enabled Alarms
(displayed on all screens)

HISTORY screen (see section 3-1)

Displays the echoes received over time, with the most
recent events on the right of the screen. Use this
screen when travelling to show the bottom so reefs,
wrecks and fish can be found.

ZOOM screen (see section 3-2)

This screen is split into two parts. On the right is the
Full Range Section which shows part of the
HISTORY Screen and to the left is the Zoom Section.
Use this screen for taking a closer look at interesting
underwater features.

SONAR screen (see section 3-3)

Displays the strength and depth of the echoes
returned from each ultrasonic pulse. The depth range
is displayed in the lower right corner. This screen is
a powerful aid, ideal for showing the bottom hardness
and the fish species.

This screen can also be used to adjust the display
shading on the HISTORY and ZOOM screens.

to highlight

T o turn the Simulation mode on, power the FISH 4200
off, disconnect the blue transducer plug at the rear
of unit, then turn the power on.

T o turn the Simulation mode off, power the fishfinder
off, reconnect the blue transducer plug at the rear of
the unit, then power the fishfinder on.

NAVIGA TE screen (see section 3-6)

Prominently displays the water depth as a digital
readout. The corresponding bottom trace is also
shown. These two complimentary features are
particularly useful for understanding depth trends
when travelling at speed.

It also displays the boat speed and the enabled
alarms.

DATA screen (see section 3-7)

The DATA screen displays the water temperature
and water temperature history over the last 40
minutes. It also displays the boat battery voltage, log,
engine-hours counter, boat speed, water depth and
enabled alarms.

FUEL screen (requires optional fuel kit)
(see section 3-8)

The FUEL screen displays the amount of fuel used
and fuel remaining, and the rate of fuel flow. It also
shows the boat speed, water depth and an
ECONOMY reading, which is the distance travelled
per unit of fuel used. The NAVMAN fishfinder
calculates this from the boat speed and fuel used.
The bigger the number, the better the fuel economy .
Adjust the throttle and trim to achieve the best fuel
economy.

SETUP menu (see section 4)

Use this option to customise the FISH 4200 to suit
the boat and individual preferences.

RANGE menu (see section 3-9)

Use this option to select either Auto or Manual Range
and to change the selected depth range.

NAVMAN

7FISH 4200 Installation and Operation Manual

3-1 ALARMS

Alarms can be enabled to automatically detect certain
conditions, such as the water being too shallow. The
trigger settings for the alarms can be defined to suit
the boat and individual preferences.

The FISH 4200 has seven alarms, TOO SHALLOW ,
TOO DEEP, FISH ALARM, TEMP VALUE, TEMP
RATE, LOW BATTERY and LOW FUEL.

The alarm symbols and beeper cycles for all of the
alarms are shown in section 4-1. The FISH ALARM
is three short beeps, the TOO SHALLOW ALARM is
a rapid continuous beep while all others are a slower
continuous beep.

When an alarm condition is met, then:

· the beeper sounds.

· the ALARMS menu is displayed on the
screen with the activated alarm(s) flashing.

Press any key to acknowledge the alarm, stop the
beeping and remove the ALARMS menu. This does

3-2 HISTORY screen operation

Select MAIN MENU - HISTORY to display the
HISTORY screen.

The HISTORY screen displays the most recent
echoes on the right of the screen and the oldest
echoes on the left. These eventually disappear off
the screen.

The vertical bar on the right edge of the screen is the
zoom bar. This shows the zoom range. To adjust the
zoom range see section 3-4.

Fish symbol
with depth

Zoom bar

Bottom

Alarms

The HISTORY screen does not show a fixed distance
travelled by the boat; rather, it displays what has
passed below the boat during a certain period of time.
The actual display depends upon the boat speed and
the depth of the water.

As the boat travels through shallow water, the echoes
have less distance to travel between the objects and

8

Selected depth range (0 to 150')

not disable the alarm. The symbol will continue to
flash until the alarm condition is no longer present.

Alarms automatically re-enable

The TOO SHALLOW, T OO DEEP, LOW FUEL and
LOW BATTERY alarms automatically re-enable
when the value moves outside the alarm trigger
setting.

The TEMP VALUE alarm automatically re-enables
when the temperature is more than 0.45°F (0.25°C)
above or below the alarm trigger setting.

The TEMP RATE alarm automatically re-enables
when the rate of temperature change falls below the
trigger setting by more than 0.2°F (0.1°C) per minute.

Enabling Alarms and Changing Trigger
Values

See section 4-1 for information about enabling alarms
and changing the trigger values.

the boat. This means that the HISTORY screen
display moves across the screen more quickly than
when the boat is travelling in deep water. In deep
water, the echoes take longer to travel between the
objects and the boat, producing a display that moves
across the screen more slowly.

Note 1: Different fish symbols can be selected (see
section 4-4).

Note 2: The depth of bottom can be adjusted for keel
offset (see section 4-8).

Range

Range is the depth of water displayed vertically. The
NAVMAN fishfinder has two range modes, Auto
Range and Manual Range:

· In Auto Range, the fishfinder adjusts the depth
range automatically so that the bottom is always
shown in the lower part of the screen. The use
of Auto Range is recommended.

· In Manual Range, the fishfinder shows only a
selected depth range. In areas of rapidly
changing bottom depth, such as the sea floor
around pinnacles, it can be useful to prevent
the screen from rescaling to always show the
bottom. If the bottom is deeper than the
specified depth range, it will not be shown on
the display screen.

T o change the range mode, see section 3-9.

NAVMAN

FISH 4200 Installation and Operation Manual

Changing the Gain Mode

Gain (sensitivity) controls the amount of detail
displayed on the screen. The FISH 4200 has two
gain modes, Auto Gain and Manual Gain:

· In Auto Gain, the gain is automatically adjusted to
compensate for water depth and clarity. The use of
Auto Gain is strongly recommended when learning
to use a fishfinder, or when travelling at speed.

· In Manual Gain, the user can adjust the gain to
compensate for water depth and clarity. Manual
settings range from 1 to 9. High settings may
amplify normal background noise until it
appears as random pixels on the screen. The
ideal setting produces only a small number of
random pixels. Normally the best results with a
fishfinder are obtained in Manual Gain but
practice and experience are required to
understand how to adjust the gain correctly .

T o change between Auto Gain and Manual Gain, hold

or -. The Gain mode will be displayed briefly at

+

the bottom of the screen.
When in Manual Gain the gain symbol

at the top of the display, followed by the gain level.
Press + to increase the gain level or press - to
decrease the gain level.

is shown

Fish detection and display

The fish symbol option can be customized, or switched
off altogether so that the echoes are not converted to
fish symbols on the screen. Section 4-4 explains how
to do this. The differences between Fish symbols on
and off are:

Fish symbols ON

Using NAVMAN’s SBN sonar technology
the fishfinder analyses all return signals
and eliminates most false signals and
clutter so that remaining targets are most
likely fish. Depending on the strength of the
remaining signals, they are displayed as
either small, medium or large fish symbols
with or without depth. Whilst the SBN
processing is very sophisticated it is not
foolproof and there will be times when the
unit will not be able to differentiate between
large air bubbles, rubbish containing air,
fishing floats etc and genuine fish returns.

Fish symbols OFF

For experienced users this will always
provide the best information as every sonar
return signal is displayed, whether it is
surface clutter, a thermocline or a fish.

3-3 HISTORY screen interpretation

Fish Arches

In ideal conditions and with Fish symbols turned OFF,
a fish passing through the cone-shaped ultrasonic pulse
is displayed on the screen as a fish arch:

As the fish enters the weak edge of the sonar cone it
generates a weak return signal that turns on the first
pixel on the fishfinder screen. As the boat moves closer
to the fish the distance between the transducer and the
fish reduces and the return signal is displayed at
progressively shallower depths, producing the start of
an arch. When the fish is directly beneath the transducer
and in the middle of the beam then the returned signal is

NAVMAN

even stronger so the arch becomes thicker. As the fish
passes out of the cone the reverse happens with a
progressively weaker and deeper return.

In reality there are many reasons why fish arches
can’t be seen. For example:

· Poor transducer installation - please refer to
the Transducer Inst allation Guide.

· If the boat is anchored then fish will tend to
show on the display as horizontal lines as they
swim into and out of the transducer sonar
beam. Slow speeds in deeper water give best
fish arch returns.

· Range is important. It will be much easier to see
fish arches when using NAVMAN’ s split screen
zoom mode to concentrate on a particular
section of water rather than just displaying
everything from the surface to the bottom.
Zooming increases screen resolution and is
necessary for good fish arches.

· It is almost impossible to get fish arches in
shallow water as the transducer sonar beam is
very narrow near the surface and fish do not
stay within the beam long enough to display an
arch. Several fish in shallow water tend to
display as randomly stacked blocks of pixels.

9FISH 4200 Installation and Operation Manual

The following picture shows the HISTORY screen with
the fish symbols turned off:

Single fish
Large school of fish
Small school of fish
Bottom

Strength of returned echoes

The shading indicates differences in the strength of
the returned echo from the bottom. A black pattern
indicates a strong echo, and light grey indicates a weak
echo. Fish symbols are always shown in black.

The strength of the returned echo varies with several
factors, such as:

· The size of the fish, school of fish or other
object.

· The depth of the fish or object.

· The location of the fish or object. The area
covered by the ultrasonic beam is
approximately cone-shaped and echoes are
strongest in the middle.

· The clarity of water. Particles or air in the water
reduce the strength of the returned echo.

· The composition or density of the object or
bottom. Mud, weed and sand bottoms tend to
weaken and scatter the sonar signal, which
results in weaker returns. Rock or coral
bottoms concentrate the return signal for
strong returns.

Note: that planing hulls at speed produce air bubbles
and turbulent water that bombard the transducer. The
resulting ultrasonic noise may be picked up by the
transducer and obscure the real echoes.

Large fish
Kelp / weed

Hard bottoms such as
rock or coral show as
wide bands at the
bottom of the screen

Shadows

Shadows are areas where the ultrasonic beam cannot ‘see’. These
include hollows on the bottom or beside rocks and ledges where the
strong echo returned off the rock obscures the weaker echo of the fish.

When looking for small objects including fish, users should consider
that there are places where fishfinders cannot ‘see’.

Shadow - where objects are hidden in the bottom echo.

These fish will be hidden in the bottom echo.

10

NAVMAN

Soft bottoms such as
mud, weed and sand
show as narrow bands
at the bottom of the
screen

FISH 4200 Installation and Operation Manual

NAVMAN fishfinders display the most recent events on
the right of the screen.

Moving boat

1 minute ago

30 seconds ago

Air in water (e.g.

from wake)

Stationary boat

1 minute ago Now

Now

When the fish symbol option is
ON, any echo returned that fits
the profile of a fish is displayed
on the screen with a fish symbol.

When a boat is stationary, all bottom echoes will come from the same small
area of bottom. This will produce a flat bottom trace on the screen.

The appearance of the HISTORY and ZOOM screens

can be changed to suit individual preferences.

Note: times indicated are for illustration only.

NAVMAN

Time

11FISH 4200 Installation and Operation Manual

3-4 ZOOM screen

Select MAIN MENU - ZOOM to display the ZOOM
screen.

The ZOOM screen is split into two parts. On the right
is the full range section (just like the HISTORY
screen) and on the left is the zoom section.

Full range section
Zoom section

Zoom bar

The full range section illustrated is 150 feet and the
zoom bar, located on the right edge of the screen,
shows the area that is enlarged in the zoom section,
in this case the section between 50ft and 100ft.

The zoom section shows the area of interest (such

3-5 SONAR screen

Select MAIN MENU - SONAR to display the SONAR
screen.

This is a powerful feature and with some experience,
this screen can be used to identify both the type of
bottom and the fish species.

On the Sonar Echo section on the right side, the
strength of an echo at a particular depth is shown by
a horizontal line at that depth. A strong echo produces
a long line, whereas a weak echo produces a short
line. Below the echoes the screen shows the Shading
Bar. This disappears from view after a few seconds,
but just press

The left side of the screen is the Fish History section.
Using the Shading Bar as a control, the fishfinder
interprets the echoes shown on the Sonar Echo
section and uses this information to draw the Fish
History section.

Recognising the Type of Bottom

The bottom trace is the strongest echo shown in the
lower part of the left side of the screen.

A bottom trace with a wide black layer is indicative
of a hard bottom, because a hard bottom returns
strong echoes. Conversely, a soft bottom produces
medium or weak echoes, which are shown by a
narrower trace.

12

to re-display it.

as fish or features close to the bottom) in greater
detail than the HISTORY screen.

Bottom Lock

The zoom bar is normally locked to the bottom
(Bottom Lock) so that the bottom is always
displayed in the zoom section, regardless of
changes in depth.

To turn Bottom Lock off, press then move the
zoom bar to the desired position with or

T o turn Bottom Lock on, move the zoom bar down
until it touches the bottom and the message
“BOTTOM LOCK ON” briefly appears.

If Bottom Lock is off and the bottom rises to meet
the zoom bar, the zoom bar will temporarily track
the bottom. This condition will cease when the
depth exceeds the original depth of the zoom bar.

.

Changing the Zoom

To increase magnification (make the zoom bar
smaller), press . T o decrease magnification (make
the zoom bar bigger), press .

Alternatively, the zoom bar can be adjusted in the
HISTORY screen before switching to ZOOM.

Small strong echo
(e.g. fish). This
usually flashes on
and off as the
ultrasonic pulse
strikes the fish.

Large strong signal
(e.g. bottom)

Shading Bar

Recognising the T ype of Fish

Different species of fish have different sizes and
shapes of swim bladders. The air in the swim
bladder reflects the ultrasonic pulse, so the strength
of the echo varies between fish species according
to the size and shape of the swim bladder. The
sonar display on the FISH 4200 is 70 pixels wide,
so it can show 70 levels of return echo strength,
which is a powerful feature.

When fishing among a school of fish and catching
them, note the fish species and the strength of the
echo that it returns on the fishfinder on the Sonar
Echo screen. Then, the next time that particular

NAVMAN

FISH 4200 Installation and Operation Manual

return on the fishfinder is seen, it is likely to be the
same fish species.

Adjusting the Shading Bar

The Shading Bar is displayed as a horizontal bar
in the lower half of the screen. Adjust the Shading
Bar so different strength echoes have a different
shade on the screen. Weaker echoes can be
shown as light grey, and the strongest echoes
shown as black.

Increase the black part of the Shading Bar by pressing

if there are too few long (strong) echoes being

displayed in black.
Decrease the black part of the Shading Bar by

pressing if there are too many long (strong) echoes
being displayed.

Manual Gain

When Manual Gain is selected, increasing the gain
setting will result in more detail being shown on the
fishfinder display. Decreasing the gain will reduce detail
being shown. See ‘Changing the Gain Mode’ in section
3-2 for more information on changing Gain settings.

3-6 NA VIGATE screen

Select MAIN MENU - NAVIGATE to display the
NAVIGA TE screen.

The NAVIGATE screen displays useful information
while travelling at speed. It prominently displays the
water depth, the boat speed, the bottom profile and
any alarms that are enabled.

Gain setting

These echoes will be
shown in grey on the
Fish History section.

These strong echoes
will be shown in black
on the Fish History
section.

The weak echoes within
this white section of the
shading bar will not be
shown - they are below
the threshold of where
the shading begins.

Increasing Gain by pressing
+ will move the edge of the
light grey bar to the left and
result in weaker echoes
being displayed in the Fish
History section. Pressing ­will move the edge of the
grey bar to the right.

Depth can be displayed in feet (FT), fathoms (FA), or
metres (M). Use the SETUP - UNITS - DEPTH menu
to select the required depth units (see section 4-2).

Speed can be displayed in knots (KN), miles per
hour (MPH), or kilometres per hour (KPH). Use the
SETUP - UNITS - SPEED menu to select the desired
speed units (see section 4-2).

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13FISH 4200 Installation and Operation Manual

3-7 DA TA screen

Select MAIN MENU - DATA to display the DATA
screen:

Temperature

Temperature
Graph

Battery
voltage

Speed

Depth

A graph displays the surface water temperature for
the last 40 minutes and is updated every 30 seconds.
The current water temperature is displayed above
the graph and is updated every second.

Log
Engine hours

Enabled
alarms

3-8 FUEL screen

To use the fuel display, the optional fuel kit must be
installed and the fuel data set-up (see section 4-8).

Select MAIN MENU - FUEL to display the FUEL
screen:

If FUEL does not
appear on the MAIN
MENU screen, enable
it using the SETUP ­INSTALL option (see
section 4-8).

USED shows the total
fuel used since it was
reset to 0 by the CLEAR
USED command (see
section 4-7).

REMAINING shows the amount of fuel remaining in the
fuel tanks.

FLOW shows the fuel consumption per hour . For twin
engine installations the fuel flow for each engine is
shown separately. This is useful for checking that
both engines are under the same load.

The temperature can be displayed in °F
(Fahrenheit) or °C (Celsius). Use the SETUP ­UNITS - TEMPERA TURE menu to select the
desired temperature units (see section 4-2).

Alarms that indicate a specific temperature, or rate
of change of temperature, may be enabled (see
section 4-1).

Log. One of two distance logs can be displayed:
Trip Log or Total Log. Both logs are retained in the
FISH 4200 memory when the unit is switched off.

Use the SETUP - LOG menu to select the Trip Log
or Total Log (see section 4-6). The Trip Log must
be reset manually (e.g. to record total mileage
during a season, or the distance travelled on this
trip). Note that the units displayed on each Log will
correspond with the Speed.

Speed can be displayed in knots (KN), miles per
hour (MPH), or kilometres per hour (KPH). Use the
SETUP - UNITS - SPEED menu to select the
desired speed units (see section 4-2).

ECONOMY is the distance travelled per unit of fuel
used. The NA VMAN fishfinder calculates this from
the boat speed and fuel used. The bigger the
number, the better the fuel economy. Adjust the
throttle and trim to achieve the best fuel economy.

SPEED is the current speed of the boat.
The water depth and the enabled alarms are shown

at the base of the screen.

Warnings:

Fuel economy can change drastically
depending on boat loading and sea
conditions. Always carry adequate fuel for
the journey plus a sufficient reserve.
Each time fuel is added or removed use
the fuel setup menu (see section 4-7) to
record the fuel or else fuel remaining and
the low fuel alarm will be meaningless!

14

NAVMAN

FISH 4200 Installation and Operation Manual

3-9 RANGE menu

Select MAIN MENU - RANGE to change the manual
range and adjust the selected depth range.

The range setup box is displayed. This shows the
depth of water displayed vertically and the range mode
setting.

NAVMAN’ s FISH 4200 has two range modes, Auto
Range and Manual Range. The use of Auto Range
is recommended. See section 3-2 for more details.

To change between Auto Range and Manual
Range, press

The Manual Range mode offers the user a choice
of pre-selected water depths. Use
the options and select a water depth.

Press

to exit.

.

and to display

NAVMAN

15FISH 4200 Installation and Operation Manual

4 SETUP menu

Select MAIN MENU - SETUP to display the SETUP
menu:

4-1 ALARMS menu

Select MAIN MENU - SETUP - ALARMS to display the
available alarms. Press

When an alarm condition is met, then:

· the beeper sounds.

· the ALARMS menu is displayed on the screen
with the activated alarm symbol(s) flashing.

Press any key to acknowledge the alarm, stop the
beeping and remove the ALARMS menu. This does
not disable the alarm. The symbol will continue to
flash until the alarm condition is no longer present.

to highlight an option.

or

Alarms can be
enabled to
automatically detect
certain conditions,
such as the water
being too shallow.
Trigger settings can
be defined to suit the
boat and individual
preferences.

Use the SETUP menu to customize the FISH 4200
to suit the boat and individual preferences, as follows:

· specify the trigger settings for the alarms (see
section 4-1)

· choose the units for depth, temperature, speed
and fuel (see section 4-2)

· turn the key beep on or off (see section 4-3)

· choose the fish symbol (see section 4-4)

· choose the contrast level (see section 4-5)

· select the Trip Log or the Total Log (see
section 4-6)

· zero Trip Log or zero all logs (see section 4-6)

· sets the fuel options: tank full, set remaining,
clear used (see section 4-7)

· specify number of engines and tank size (see
section 4-8)

· select language, setup the keel offset (see section
4-8)

· calibrate speed and temperature sensors (see
section 4-8)

· calibrate the fuel level and the fuel flow (see
section 4-8)

or

Press
following sections.

The beeper cycle is different for some alarms. All of
the alarm symbols and beeper cycles are shown:

Symbol Alarm Beeper Alarm condition is

Note: The FISH ALARM gives only three short beeps.

to highlight an option, then see the

Name Cycle met when:
Temp1/2 sec the temperature equals
Value the alarm trigger value
Temp1/2 sec the rate of change of
Rate temperature equals the

alarm trigger value
Too1/5 sec the depth is less than
Shallow the alarm trigger value
Too1/2 sec the depth is greater
Deep than the alarm trigger

value
Fish 3 short an echo matches the
Alarm beep s profile of a fish
Low1/2 sec the battery voltage is
Battery less than the alarm

trigger value

16

NAVMAN

FISH 4200 Installation and Operation Manual

Alarms automatically re-enable

The TOO SHALLOW, TOO DEEP and LOW
BATTERY alarms automatically re-enable when the
value moves outside the alarm trigger setting.

The TEMP VALUE alarm automatically re-enables
when the temperature is more than 0.45°F (0.25°C)
above or below the alarm trigger setting.

The TEMP RATE alarm automatically re-enables
when the rate of temperature change falls below the
trigger setting by more than 0.2°F (0.1°C) per minute.

Flashing Light and/or External Beeper

If a secondary alarm indicator is required, a flashing
light and/or external beeper can be installed. These
can be positioned anywhere suitable on the boat.
For installation advice see section 5-4.

Enabling Alarms and Changing Trigger
Values

or to highlight an alarm, then press to

Press
select it. To enable or disable an Alarm, press
switch between ON and OFF.

T o set the trigger value for an Alarm, press or
increase or decrease the trigger value.

The alarm trigger value is retained even when the
alarm is disabled.

to

to

NAVMAN

17FISH 4200 Installation and Operation Manual

4-2 UNITS menu

Select MAIN MENU - SETUP - UNITS to define the
units for depth, temperature, speed and fuel.

or to highlight

Press
an option.

DEPTH

Can be displayed in units
of feet (FT), fathoms (FA),
or metres (M). Press to
select the required depth
units.

TEMPERA TURE

Can be displayed in °F
(Fahrenheit) or °C
(Celsius). Press
select the required
temperature units.

to

SPEED

Can be displayed in knots (KN), miles per hour
(MPH), or kilometres per hour (KPH). Press to
select the required speed units.

Note: Distance units will change automatically to
match the speed units.

FUEL

Can be displayed in litres (L), US Gallons (USGAL),
or Imperial Gallons (IMPGAL).
the required fuel units.

Press to select

4-3 KEY BEEP

Select MAIN MENU - SETUP - KEY BEEP to enable
or disable a single beep that audibly confirms a
keypress.

4-4 FISH SYMBOL

Select MAIN MENU - SETUP - FISH SYMBOL to
display the fish symbol options for the screen displays.

There are three options. Press

· OFF

· .

·

,

to select:

OFF

Displays echoes as dots on the screen.

Displays any echoes returned that match the profile of
a fish as a fish symbol in one of three sizes:

4-5 CONTRAST menu

Select MAIN MENU - SETUP - CONTRAST to display
the contrast setting box and the current setting.

The contrast level can be set at any level between 0
and 16. The default setting is 6.

18

to select ON or OFF . The default setting is

Press
ON.

Strongest echo
Average echo

Weakest echo

Echoes which are not recognised as fish are
displayed as dots on the screen.

Displays any echoes returned that match the profile
of a fish as a fish symbol in one of three sizes as
above. The depth of the fish is shown to the left of
the symbol. Echoes which are not recognised as
fish are displayed as dots on the screen.

or to increase or decrease the setting to

Press
the required level. Then press to exit.

NAVMAN

FISH 4200 Installation and Operation Manual

4-6 LOG menu

Select MAIN MENU - SETUP - LOG to display the
available options.

or

to highlight

Press
an option:

LOG

Selects which log is
displayed on the DAT A
screen, TOTAL or TRIP.

Press

to choose
between TRIP or
TOTAL. Both logs are
retained in the NAVMAN
fishfinder but only the
selected log is
displayed.

4-7 FUEL menu

Select MAIN MENU - SETUP - FUEL to display the
fuel options.

Press

or to highlight

an option.

TANK FULL

Press to select YES
or NO. It is important to
select YES each time
that the tank is refilled,
otherwise the low fuel
alarm will not work
correctly. (Selecting YES
also automatically
updates the SET
REMAINING fuel
reading to equal the full
tank capacity.)

ZERO TRIP LOG

Resetting the trip log will return the trip log value to
zero. The trip log is retained in the fishfinder memory
so it retains the distance value if the fishfinder is
switched off during a trip. Therefore, the trip log needs
to be reset manually each time the user wishes to log
a trip.

Press or to highlight ZERO TRIP LOG , then press

to select it. The message box “ZERO TRIP LOG

YES” appears.

to select YES or NO. Then press

Press
to reset the trip log and exit.

or

ZERO ALL LOGS

Resetting both logs will return both the trip log and
the total log values to zero.

Press or to highlight ZERO ALL LOGS, then
press to select it. The message box “ZERO ALL
LOGS YES” appears.

to select YES or NO. Then press

Press
to exit.

SET REMAINING

Use this to change the remaining fuel value. Press

or to increase or decrease the value as required;
for example, after syphoning out some fuel or when
not filling up the tank to capacity.

CLEAR USED

Use this to reset the fuel used value to 0. Press
select YES or NO. Selecting YES will reset the value
to 0.

or

to

NAVMAN

19FISH 4200 Installation and Operation Manual

4-8 INST ALL menu

Use this menu at installation time, to select the
language and to enter the keel offset value, the number
of engines and the fuel tank size. The INST ALL menu
can also be used to calibrate the water temperature
and boat speed.

Select MAIN MENU - SETUP - INSTALL to display the
menu.

Press or
an option.

LANGUAGE

The following languages
are available: English,
French, German,
Spanish, Italian, Dutch,
Swedish, Portuguese
and Finnish.

Press or to highlight
the selected language,
then press
and exit.

Use Keel Offset either when the
transducer is located below the
water surface but a display of total
water depth is required, or when
depth of water below the boat’s
keel is required.

to highlight

to save

KEEL OFFSET

Keel offset is the distance between the location of
the depth transducer and the point the displayed
depth is measured from.

Enter a keel offset value when the transducer is
located below the water surface but a display of
total water depth is required, or when the depth of
water below the boat's keel is required.

Press

or to select KEEL OFFSET, then press

to display the keel offset box.

Negative values display the depth as measured
from a point below the transducer (e.g. keel).
Positive values display the depth as measured from
a point above the transducer (e.g. water surface).

Press

or to increase or decrease the value.

Water surface
Positive value

Transducer

Depth of transducer

Negative value

Enter positive values to display depth as measured from a point above the transducer (e.g. water surface).
Enter negative values to display depth as measured from a point below the transducer (e.g. keel).

CALIBRATION

See section 4-9 for a description of the calibration
menu options.

NUM. ENGINES

Use this to specify the number of engines on your boat.
Press to select 0, 1, or 2. Note: selecting 0 will
remove the fuel options from the menus and turn off
all the fuel features.

TANK SIZE

Use this to specify the capacity of the fuel tank (this
is displayed in the units selected through the
SETUP - UNITS menu). Press
or decrease the value as required.

It is recommended that the fuel tank capacity is
measured by draining the fuel tank and then filling
it to capacity . After filling, note the reading from the
fuel dispenser’s gauge. Note: Be aware of air

Note: Boat illustrated uses a through hull transducer

pockets, especially in underfloor tanks.

20

NAVMAN

FISH 4200 Installation and Operation Manual

or to increase

4-9 CALIBRA TION menu

Use this menu to
calibrate water
temperature boat
speed, fuel
readings and the
fuel flow filter.

Select MAIN MENU

- SETUP - INSTALL

- CALIBRATION to
display the
calibration menu.

Calibrating the Temperature

The factory settings should be sufficiently accurate
for normal usage. However, to calibrate the
temperature readout, first measure the water
temperature.

Then, to calibrate the setting, select TEMPERA TURE
then press to display the temperature readout box.
Press or to increase or decrease the value to
match the measured temperature.

(To change the temperature units between °F
(Fahrenheit) or °C (Celsius), use the SETUP - UNITS
menu (see section 4-2).

Calibrating the Speed

Use this to calibrate the boat's speed and log.
Calibration may be required because different hull
shapes have different flow characteristics.

Obtain an accurate measurement of the boat's speed
from a GPS receiver; by following another boat
traveling at a known speed; or by making a timed
run over a known distance.

Note that for accurate calibration:

· the speed from a GPS receiver should be
greater than 5 knots.

· the speed from another paddlewheel transducer
should be between 5 and 20 knots.

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

Use

or to highlight the SPEED option, then press

to display the speed readout box. Press or to
increase or decrease the readout to match the
independent speed value.

Calibrating the Fuel

Use this to calibrate the fuel usage. Calibrating the
fuel usage can improve the accuracy of fuel
measurements.

Twin engine installations require each fuel transducer
to be calibrated. This can be done at the same time
with two portable tanks, or at different times using
one portable tank.

Calibrating the fuel transducer requires accurate
measurement of the fuel consumption. This is best
done using a small portable tank. At least 4 gallons
(15 litres) of fuel should be used to ensure an
accurate calibration.

It is often very difficult to fill underfloor tanks to the
same level twice due to air pockets, so the more fuel
used, the more accurate the calibration.

T o calibrate a fuel transducer, perform the following
steps:

1 Select MAIN MENU - SETUP - FUEL and then
select the CLEAR USED option. Press
YES.

2 Note the level of the fuel in the tank.
3 Connect the portable tank to the engine through

the fuel transducer.
4 Run the engine at normal cruising speed until at

least 4 gallons (15 litres) of fuel has been used per
engine.

5 Check the actual amount of fuel used per engine
by refilling the portable tanks to the original level and
noting the reading from the fuel dispenser’s gauge.

6 Select MAIN MENU - SETUP - INSTALL ­CALIBRATION - FUEL, then press
the reading to match that on the fuel dispenser’s
gauge.

7 Press
(Repeat the procedure for the other engine in a twin

engine installation).
Note: If the fuel calibration options appear to give

erroneous readings after being used for a while, first
check that the fuel sensor has been installed correctly
according to the Installation Instructions supplied with
it, and then refer to the trouble-shooting section in
Appendix B of this manual.

when the reading is correct.

to select

or to change

NAVMAN

21FISH 4200 Installation and Operation Manual

Setting the Flow Filter Period

Normally engines do not draw fuel from the tank at a
steady rate. To give a stable fuel flow reading, the
TRACKER calculates the flow values by taking several
measurements and averaging them. The flow filter
sets the period over which the fuel flow is averaged,
and can be set from 1 to 255 seconds or Off.

Set the flow filter to the lowest value which give a
stable flow. Usually a value of 10 to 15 seconds will
give a satisfactory result for two-stroke carburettor
engines. Electronic fuel injected and four-stroke
engines may require a larger value.

This setting affects the Flow rate and Economy displays.
It does not affect the fuel used measurement.

4-10 Resetting to Factory Defaults

Important:

This option resets all of the following settings and
resets them to the manufacturer’s default settings.

Speed and distance are related. For example, if knots
are chosen as the speed units, then distance is
always measured in nautical miles.

T o reset the fishfinder to the manufacturer's default
settings, power off the fishfinder. Then hold
power on while holding it.

The message “RESET TO F ACTORY DEFAUL TS?”
appears. Press to select YES or NO. Then press

to reset the trip log and exit.

or

GENERAL

Auto Gain ....................................................... ON

Auto Range .................................................... ON

Manual Gain .......................................................5

Bottom Lock ................................................... ON

Key Beep ........................................................ ON

Contrast .............................................................6

Backlighting........................................................6

UNITS

Temperature..................................................... °F

Depth ........................................................... Feet

Speed ..............................................................KN

Fuel ......................................................... US Gal.

and

ALARMS

Shallow Alarm .............................................. OFF

Shallow Alarm Value .....................................10 ft

Deep Alarm .................................................. OFF

Deep Alarm Value .........................................60 ft

Fish Alarm .................................................... OFF

Temp. Change Alarm ................................... OFF

Temp. Change Alarm Value........................ 5.0 °F

Temp. Alarm ................................................. OFF

T emp. Alarm V alue...................................... 80 °F

Low Battery Alarm ........................................ OFF

Battery Alarm Value .............................. 11.5 Volts

Low Fuel Alarm .................................... 5 US Gal.

FISH SYMBOL .......................................

INSTALL

Keel Offset ...................................................0.0 ft

Num. Engines ....................................................0

Tank size ............................................ 18 US Gal.

Flow Filter ................................................ 10 sec.

22

NAVMAN

FISH 4200 Installation and Operation Manual

5 Installation

Correct installation is critical to the performance of
the FISH 4200. There are two components to install,
the display unit and the transducer. It is vital to read

the entire installation section of this manual and
the documentation that comes with the transducer
before attempting installation.

5-1 What comes with the FISH 4200?

Standard configuration

· FISH 4200 display unit

· Power cable

· Mounting bracket (screws included)

· Warranty registration card

· This manual

· Transducer (includes cable kit and screws)

· Transducer Installation Manual

· Screws

· Sun cover

· Flush mounting kit

5-2 Options and Accessories

Optional transducers

· Through hull Speed/Temperature transducer

· Through hull Depth transducer

· In hull Depth transducer

Other options and accessories

· Replacement paddle wheel

· Adapter cable for through hull transducer

· Carry bag

· Transducer extension cable

· Fuel kit (single or twin available)

Depth Repeater

Repeater for Depth, Speed, Water Temperature,
Battery Voltage (see section 5-5).

Please consult your NAVMAN dealer for more
information.

5-3 Mounting the FISH 4200 Display Unit

There are two mounting arrangements:

· Flush mounting requires a solid panel
with access behind for wiring and mounting
screws.

· Bracket mounting requires a panel for
mounting the bracket. The bracket can be
rotated and tilted.

Select a position where the display head will be:

· at least 4" (100 mm) away from the compass.

· at least 12" (300 mm) away from any radio
transmitter.

· at least 4' (1.2 m) away from any antenna.

· easy to read by the helmsman and crew
while underway.

· protected from physical damage during
rough sea passages.

· easy to access the 12 volt power source.

· convenient to route the transducer cables.

Bracket mounting

1. Fix the mounting bracket onto the boat using the
three stainless steel screws. Do not overtighten
as the bracket may not rotate.

2. Push the display unit onto the mounting

NAVMAN

bracket and tighten it firmly using the knob on
the mounting bracket.

3. Attach the cables

Removing the FISH 4200

The FISH 4200 can be removed after each use for
protection against the environment or security
reasons.

When removing the FISH 4200 ensure that the plugs
left in the boat are not exposed to the elements. Push
the attached dust covers over the exposed ends of
the plugs. Keep the display unit in a dry clean place
such as the optional NAVMAN carry bag.

Flush mounting

1. Cut a hole in the bulkhead for the display

2. Drill four holes for the mounting studs

3. Screw the four studs into the brass inserts

4. Sit the display unit in place and fit the

Unit

Screws

Transducer

unit using the flush mount template.
using the flush mount template.
in the back of the display unit.
washers and nuts to the studs.

Power cable

Mounting
bracket

23FISH 4200 Installation and Operation Manual

5-4 Wiring Connection

Warning

1 Amp fuses must be positioned where shown in
the wiring diagrams.

If possible, route the transducer cables away from
other wiring on the boat. Electrical noise from engine
wiring, bilge pumps and other electrical equipment
can affect the unit.

The shortest and most direct connection to the boat's
battery helps to minimise voltage drop. Ensure that
any cable connections do not lay in the bilge.

Two wiring options are described in this section:

· Basic Wiring. This does not start the fishfinder
automatically when the boat ignition is switched
on and it disables the engine hours counter.

· Auto Power Wiring. This must be used for
engine hours and fuel computer options.

Important

The FISH 4200 must be run off a 12 volt battery and
must not be run off a circuit without a battery.

Basic Wiring

Black wire: Connect this to the negative battery
terminal.

1A Fuse

Main
switch

12 V DC

Red wire: Connect this to the 12V positive battery
terminal after the main switch. Fit a 1 Amp fuse as
shown.

Yellow wire: Connect this to the black wire. This
disables the engine hours counter.

Power on the fishfinder manually whenever the main
switch is on.

Red

Yellow

Black

Auto Power Wiring

To ignition
system

Ignition
switch

Main
switch

1A fuse

1A fuse

External
Beeper or
Light

12 V DC

White (NMEA
out)

Yellow
Red

Green
Black

Black wire: Connect this to the negative battery
terminal.

Red wire: Connect this to the 12V positive battery
terminal after the main switch. Fit a 1 Amp fuse as
shown.

Yellow wire: To enable the engine hours counter
and start the fishfinder automatically when the
ignition is turned on, connect the yellow wire to the
ignition system, through a 1 Amp fuse. Note that
the fishfinder cannot be turned off while the ignition
is on.

Flashing Light and/or External beeper

Use the green wire, if desired, to connect a
secondary alarm indicator such as a flashing light
or a 12V external beeper with a built in drive circuit.
Refer to the wiring diagram. If the external beeper
or light requires more than 250mA DC total, fit a
12V relay. Consult your NAVMAN dealer for more
advice.

NMEA Instruments

Use the white wire, if desired, to connect the
fishfinder to other NMEA instruments such as
NAVMAN’ s depth repeater. See section 5-5 for more
information.

24

NAVMAN

FISH 4200 Installation and Operation Manual

Single Engine Fuel Wiring Option Twin Engine Fuel W iring Option

Power fuel
cable 2m

8 pin Black

8 pin White

cable 8m

fuse

Black

Fuel Transducer

Red

Power fuel
cable 2m

8 pin Black

8 pin White

cable 8m

Fuel Transducer

Port

5-5 Connecting a FISH 4200 to other instruments

Several NAVMAN instruments can be connected
together to share data such as Depth or Speed. The
FISH 4200 uses the NMEA protocol to output data to
other instruments.

NMEA

NMEA is an industry standard for marine instrument
communications. Data sent by one instrument over

an NMEA line can be read and displayed by
another instrument that accepts NMEA 0183
Version 2. Depth, speed and temperature dat a is
output by the FISH 4200 and can be read and
displayed by the NAVMAN REPEAT 3100,
DEPTH41, GPS Chartplotter (5000 series), or
other NMEA instrument.

8 pin White

Twin engine
fuel adaptor

Fuel Transducer

Starboard

fuse

Black

cable 8m

Red

REPEAT 3100
Repeater for depth, speed, water temperature and

DEPTH41

Depth repeater.
battery voltage. Can accept many other NMEA dat a
inputs from other instruments.

Please contact your NAVMAN dealer for information on NAVMAN’s full range of NMEA enabled instruments
and connection options.

NAVMAN

25FISH 4200 Installation and Operation Manual

Appendix A - Specifications

Depth range

· 2 ft (0.6 m) to 600 ft (180 m)

Display type

· FSTN greyscale

· Screen resolution 160 high x 120 wide (pixels)

· Amber multi-level back lighting

Supply voltage

· 10 to 16.5 V DC

Supply current

· 120 mA min - no backlighting

· 180 mA max - full backlighting

Operating temperature

· 32 to 122°F (0 to 50°C)

Transom transducer cable length

· 26 ft (8 m)

Typical depth acquisition time from st artup

· 2 seconds at 100 feet

Transducer frequency

· 200 kHz

Transducer power

· 150 Watts RMS @ 13.8V DC (During Burst)

Receiver sensitivity

· Better than 10 micro volts RMS

· Dynamic range 4.0 million to 1 (120dB)

Standards Compliance

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

AS-NZS 3548

· Environment: IP67

Temperature measurement range

· 32 to 99.9°F (0 to 37.7°C) Resolution 0.1 units

Speed range

· 1 to 50 kn (57.5 mph, 96.6 kph)

Speed resolution

· 0.0 to 9.9, 10 to 50

Communications

· NMEA 0183 (Ver 2.0) 4800 Baud

NMEA output

NMEA (0183 format) is a standard for interfacing
marine electronic devices. The NAVMAN fishfinder
can output the following data:

· DBT (Depth Below Transducer)

· DPT (Depth and Keel offset)

· TDK (Depth NAVMAN NZ - proprietary)

· TKV (Speed NAVMAN NZ - proprietary)

· VHW (Speed)

· MTW (Water temperature)

· XDR (Battery voltage and Fuel Flow)

Fuel Computer

(Optional fuel transducers required)

Outboard carburetted two stroke petrol/gasoline
engines: 30 to 300 hp
Outboard four stroke petrol/gasoline engines:
90 to 300 hp
Inboard petrol/gasoline engines: 50 to 300 hp
Minimum flow rate: 1.3 U.S. gallons per hour (5
litres per hour)

26

NAVMAN

FISH 4200 Installation and Operation Manual

Appendix B - Troubleshooting

This troubleshooting guide is written with the
assumption that the user has read and understood
the relevant sections in this manual.

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

There are no user serviceable parts. Specialised
methods and testing equipment are required to
ensure that the display unit is reassembled correctly
and is waterproof. Users who service a NAVMAN
fishfinder themselves will void the warranty.

Repairs to the FISH 4200 may only be carried out by
a service centre approved by NAVMAN NZ. If the
display unit must be sent into a service centre for
repair, it is essential to send in the transducer(s) at
the same time.

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

1. The fishfinder won't turn on:

a) NAVMAN fishfinders are designed to operate

on 12 volt battery systems, where the voltage
may vary from 10 to 16.5 volts. If an excessive
voltage is supplied to the unit, a resettable fuse
will be tripped, turning the display unit off.

b) Check that the power cable LT connector at

the back of the display unit is securely plugged
in and the collar is locked in place. The collar
must be secure for watertight connection.

c) Measure the battery voltage while the battery is

under load - turn on some lights, radio, or other
electrical equipment connected to the battery. If
the voltage is less than 10 volts:

- the battery terminals or wiring on the
terminals may be corroded.

- the battery may not be charging correctly or
may need replacing.

d) Inspect the power cable from end to end for

damage such as cuts, breaks, or squashed
sections.

e) Ensure that the red wire is connected to the

positive battery terminal and the black wire to
the negative battery terminal. If wired for the Auto
Power option, ensure the yellow wires are
connected to ignition circuit. Also check the boat's
main switch circuit. See section 5-4.

f) Check for corrosion on the power cable LT

connector and clean or replace if required.

g) Check fuses that are placed in line with the

power cable. A fuse can be blown despite
appearing to be good, or the fuse may be

NAVMAN

corroded. Test the fuse or replace it with a fuse
known to be good.

2. The fishfinder won’t turn off:

The fishfinder may have been wired with the
Engine Hours feature enabled. In this case, the
fishfinder cannot be turned off while the ignition
power is on. See Auto Power Wiring in section
5-4.

3. The fishfinder operates erratically:

a) Check that the transducer does not have debris

(e.g. weed, plastic bag) caught around it.

b) The transducer may have been damaged

during launching, running aground, or running
underway with debris etc. If the transducer has
been impacted, it may have been kicked up on
the bracket. If it is not physically damaged,
reset the transducer back to its original
postion. See the Transducer Installation Guide
for more information.

c) When in water less than 2 feet (0.6 m) the

bottom and depth readings may become
inconsistent and erratic. This depth is
measured from the transducer and does not
allow for any keel offset setting.

d) Manual Gain may be set too low, which may

cause weak bottom echo, or no fish signals. If
Auto Gain is disabled try increasing the gain.

e) Ensure the back of the bottom surface of the

transducer is slightly lower than the front and
the front is as deep in the water as possible in
order to minimise the generation of bubbles
through cavitation. See the Transducer
Installation Guide for more information.

f) Check the transducer and power cable LT

connectors at the back of the display unit are
securely plugged in and the collar is locked in
place. The collar must be secure for watertight
connection.

g) Inspect the transducer and power cables from

end to end for damage such as cuts, breaks or
squashed sections.

h) Ensure there is not another fishfinder or depth

sounder turned on, which may interfere with
the FISH 4200.

i) Electrical noise from the boat's engine or an

accessory may be interfering with the
transducer(s) and/or the NAVMAN fishfinder .
This may cause the fishfinder to automatically
decrease the gain unless using Manual Gain.
The fishfinder thus eliminates weaker signals
such as fish or even the bottom from the
display. This may be checked by switching of f
other instruments, accessories (e.g. bilge
pump) and the motor until the offending device

27FISH 4200 Installation and Operation Manual

is located. To stop problems from electrical
noise, try:

- rerouting the power and transducer
cable(s) away from the boat’s other
electrical wiring.

- routing the unit's power cable directly to the
battery instead of through a fuse block or
ignition switch.

4. Bottom is not displayed:

a) The fishfinder may have Manual Range

selected and the depth may be outside the
range value selected. Either change the
fishfinder to Auto Range or select another
depth range - see section 3-9.

b) The depth may be outside the fishfinder’s

range. While in Auto Range, the display unit
will flash the last depth displayed, then display
“--.-” to indicate that there is no bottom
detected. A display of the bottom should
reappear when it is shallower than 180m (600
ft).

5. The bottom is displayed too far up the
screen:

The fishfinder may have Manual Range
selected and the selected Range value is too
high for the depth. Either change the fishfinder
to Auto Range or select another depth range ­see section 3-9.

6. Bottom echo disappears or erratic digital

reading while the boat is moving:

a) Ensure the back of the bottom surface of the

transducer is slightly lower than the front and
the front is as deep in the water as possible in
order to minimise the generation of bubbles
through cavitation. See the Transducer
Installation Guide for more information.

b) The transducer may be in turbulent water. Air

bubbles in the water disrupt the echoes
returned, interfering with the fishfinder’s ability
to find the bottom or other targets. This often
happens when the boat is reversed. The
transducer must be mounted in a smooth flow
of water in order for the fishfinder to work at all
boat speeds.

c) Electrical noise from the boat’s motor can

interfere with the fishfinder. Try some
suppression spark plugs.

7. If the fishfinder beeps when turned on but
nothing is displayed:

The fishfinder may be operating, but the
contrast settings may have been set too high
or low. Power off the fishfinder . Then hold

and press to reset the fishfinder to the
default contrast setting.

28

8. The wrong language is displayed:

See section 2.

9. Fuel USED or REMAINING seem inaccurate:

a) If the engine is run whilst the fishfinder is

powered off, the fishfinder does not record
the amount of fuel used during that engine
run. Consequently, the FUEL REMAINING
value will be higher than the actual amount of
fuel remaining in the tank.
To avoid this problem, use the Auto Power
Wiring option described in section 5.4. This
ensures that the fishfinder powers on
automatically whenever the boat’s ignition is
switched on.

b) In rough seas, fuel may surge back and forth

through the fuel transducer, resulting in
incorrect readings. Try installing a one-way
valve between the fuel transducer and the
fuel tank.

c) The SET REMAINING fuel value must be

reset after every refuelling. See section 4-7.

d) The fuel tank may not refill to the same

capacity each time due to air pockets. This is
particularly noticable with underfloor tanks.

e) Fuel transducers wear out over time and

should be replaced after every 5000 litres of
fuel.

10. FLOW indicates no fuel or low fuel

a) Check that the fuel cable connectors are

securely plugged in and the collar is locked in
place. The collar must be locked in place to
give a watertight connection.

b) A fuel transducer may be clogged. If so,

remove the transducer from the fuel line and
gently blow through it in the opposite direction
to the fuel flow.
A fuel filter between the fuel transducer and
the fuel tank must be installed as per the fuel
installation guide. Failure to do so will void
the warranty.

c) Inspect the fuel cable from end to end for

damage such as cuts, breaks, or squashed

sections.
d) Check that the fuel filter is clean.
e) Installation implications.

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FISH 4200 Installation and Operation Manual

11. A twin engine installation shows only one
flow rate:

a) Check that the number of engines is set to 2.

See section 4-8.

12. Erratic fuel FLOW readings:

a) The fuel flow transducer may have been

mounted too close to the fuel pump, or may be
subject to excessive vibration. Refer to the
Installation Instructions supplied with the fuel
transducer.

b) Check for air leaks in the fuel line or in the fuel

pickup in the tank.

c) The FLOW FILTER value is not suit able for the

engine. Check that the value is not set to zero,
and then try increasing the value until a steady
FLOW rate is shown. See section 4-9.

13. There is no reading for fuel ECONOMY:

a) The boat must be travelling through the water

to generate an ECONOMY reading.

b) Check that the paddlewheel on the transducer

is spinning freely, and that the two magnet s in
the paddlewheel are still in place.

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29FISH 4200 Installation and Operation Manual

30

NAVMAN

FISH 4200 Installation and Operation Manual

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31FISH 4200 Installation and Operation Manual

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Made in New Zealand
MN000160 1951407A

FISH 4200

Lon 174° 44.535'E

Lat 36° 48.404'S

NAVMAN