Simrad EQ33 User Manual

M A N U A L

Simrad EQ33

Echosounder

183.230 0.702

02121.10

EQ33 Echosounder Table of contents

Chapter 1 Introduction and safety summary

1.1 Introduction and system familiarization ...................................... 1-1

1.2 Safety summary ........................................................................... 1-2

1.3 How to get started ........................................................................ 1-3

1.3.1 Dedicated function keys............................................................... 1-3

1.3.2 Echosounder features ................................................................... 1-4

Chapter 2 Fundamentals and initial startup

2.1 Fundamentals of the display and page system ............................. 2-1

2.2 Key functions ............................................................................... 2-3

2.3 Menu bar....................................................................................... 2-4

2.4 Menu layout .................................................................................. 2-5

2.5 Initial start-up............................................................................... 2-6

2.6 Turn power off .............................................................................. 2-6

Chapter 3 Position menu

3. Position menu ............................................................................... 3-1

3.1 Position display............................................................................. 3-1

Chapter 4 Pilot menu

4. Pilot menu .................................................................................... 4-1

4.1 Highway display ........................................................................... 4-1

4.2 Navigation setup........................................................................... 4-1

Chapter 5 Echosounder operation

5. Echosounder operation ................................................................. 5-1

5.1 Echosounder menu ....................................................................... 5-2

5.2 Echosounder display..................................................................... 5-2

5.3 Bottom expansion......................................................................... 5-4

5.4 VRM expansion............................................................................ 5-5

5.5 A-scope......................................................................................... 5-6

5.6 Variable range marker .................................................................. 5-7

5.7 Depth & temperature diagram ..................................................... 5-7

5.8 Echosounder setup........................................................................ 5-9

5.9 Presentation setup........................................................................5-11

Chapter 6 Miscellaneous menu

6. Miscellaneous menu ..................................................................... 6-1

6.1 Wind display................................................................................. 6-1

6.2 DSC alarm (feature prepared for future DSC VHF).................... 6-3

Chapter 7 Setup menu

7. Setup menu................................................................................... 7-1

7.1 Speed alarm, units & language .................................................... 7-1

Table of contents EQ33 Echosounder

7.2 Interface setup, NMEA ................................................................ 7-4

7.2.1 Default sentences.......................................................................... 7-5

7.2.2 Description of sentences............................................................... 7-6

7.3 Interface setup, alarm output........................................................ 7-7

7.4 Decca lanes................................................................................... 7-8

7.5 Loran C......................................................................................... 7-9

7.6 Display color................................................................................7-10

7.7 Factory settings ...........................................................................7-11

Chapter 8 Principles of operation

8.1 Parts of an echosounder ............................................................... 8-1

8.2 How the echosounder works ........................................................ 8-2

8.3 Transducer beam width ................................................................ 8-3

8.4 Effects of the vessel’s speed .........................................................8-4

Chapter 9 Installation and service

9. Installation and service ................................................................ 9-1

9.1 Installation notes .......................................................................... 9-1

9.2 Installation of EQ33 Echosounder................................................ 9-3

9.3 Location for display unit ..............................................................9-4

9.4 Installation of DS33 Dual Station................................................. 9-5

9.4.1 Operation of DS33 Dual Station................................................... 9-5

9.5 Electrical connections ..................................................................9-6

9.5.1 Power supply connections ............................................................ 9-7

9.5.2 Fuse............................................................................................... 9-7

9.5.3 Transducer connection ................................................................. 9-7

9.5.4 NMEA0183 interface connection................................................. 9-7

9.6 Basic transducer and cable information ....................................... 9-7

9.6.1 Transducers (optional)..................................................................9-8

9.6.2 Determining the position for the transducer ...............................9-11

9.7 Preventive maintenance.............................................................. 9-13

9.8 Repair and service ...................................................................... 9-13

9.9 Troubleshooting...........................................................................9-14

9.10 Specifications ............................................................................. 9-15

Appendix A Glossary of terms...................................................................A-1

Index

CE Declaration
International warranty
List of Simrad distributors

EQ33 Introduction and safety summary Chapter 1-1

1.1 Introduction and system familiarization

Congratulations on your purchase of SIMRAD EQ33 Echosounder and
Fishfinder - a high performance echosounder in a unique slim-line design

with a bright 6” TFT color or monochrome display.
The EQ33 is both an echosounder system with selectable frequency i.e. 50

and 200 kHz, providing an impression of what is to be found in the water
under the vessel, and it is a repeater for navigational data from connected GPS
receiver.

DS33 Dual Station for the EQ33 is available with a 6” bright TFT color
or monochrome display. The main unit and the dual station are identical in
design and operation.

How to use this manual?

It is a good idea if you make yourself familiar with the key functions, menu
structure and rotation of pages (screens) described in chapter 2 before you
start out, and then proceed with section 2.5 Initial start-up. For quick location
of a certain term, please check the “Glossary of terms” and the “Index” at the
back of the manual. Also, “How to get started” further on in this chapter will
give you a quick introduction to some of the features you have access to in
your new echosounder.

The display examples shown in this manual are not always an exact copy of
what you will see on the screen, as the presentation depends on your system
configuration and choices of setup.

How to interpret special marked key symbols etc. in the manual:

+/-

Either the + (plus) or - (minus) key may be applied.

0-9

Alpha-numeric keys for insertion of figures.

A-Z

Alpha-numeric keys for insertion of letters.

) Emphasizes important points.

3,7

Indicates that you should press the keys [3] and [7] to obtain what is

written in italic next to the key.

Chapter 1-2 EQ3 3 Introduction and safety summary

1.2 Safety summary

Precaution: Do not open the equipment, only qualified persons should work
inside the equipment. If the glass in the screen breaks, be careful not to get cut
on the sharp edges of the glass pieces.

Power source, fuse and power cable: Check that the DC power supplied to
the unit is within the range of 10 to 32 volts. Note that the appropriate fuse
must be employed (see the fuse rating in section 9.10 Specifications). Ensure
that the power cord is firmly attached.

Grounding: To reduce electrical interference and risk of electrical shock,
properly ground the unit to the ship’s ground using the ground screw at the
rear of the unit. Good grounding should also be exercised for any equipment
connected to the EQ33.

Quality service personnel: The EQ33 is sealed and does not contain any user
serviceable parts. Opening of the unit will void its warranty. Touching electri­cal parts inside may cause bodily harm. If the unit is not working properly,
check sections 9.7 Preventive maintenance, 9.8 Repair and service, and 9.9
Troubleshooting. If your EQ33 requires servicing or repair, call your author­ized SIMRAD dealer.

Glossary of terms: If you have never used an echosounder before or if you are
unsure of how a term is used in this manual, then turn to Appendix A - Glos­sary of terms.

Default settings: All user implemented data in the EQ33 can be erased by
making a reset of the unit and thus return to factory default settings.

EQ33 Introduction and safety summary Chapter 1-3

1.3 How to get started

PWR

Press and hold the [PWR] key until you have a picture on the screen

ENT

Press the [ENT] key when the legend ‘System Ready’ appears on the

screen

1.3.1 Dedicated function keys

STND

Press [STND] from any other display will call up the standard echo

display.
Press [STND] again will toggle A-scope on/off.
Press [STND] for 2 seconds will toggle between 50 and 200 kHz

echo displays.

B-LCK

Press [B-LCK] from any other display will call up the bottom lock

display.
Press [B-LCK] again will toggle A-scope on/off.
Press [B-LCK] for 2 seconds will toggle between 50 and 200 kHz

echo displays with bottom expansion.

ZOOM

Press [ZOOM] from any other display will call up the zoom display.

Press [ZOOM] again will toggle A-scope on/off.
Press [ZOOM] for 2 seconds will toggle between 50 and 200 kHz

echo displays with zoom activated.

PAGE

Press the [PAGE] key to toggle between four user-selectable pages.

Press for 2 seconds to start automatic rotation of all four pages.

Chapter 1-4 EQ33 Introduction and safety summary

1.3.2 Echosounder features

A-scope - Activate A-scope by means of one of the dedicated function keys
(see section 1.3.1), or with echo display in active screen the function can be
turned on/off from the ECHO menu. Echoes are displayed in a ‘bar-graph’
format. The strength of the actual echo is indicated by both width and color
intensity.

Change frequency - Press and hold one of the function keys: [STND],
[B-LCK] or [ZOOM] for two seconds to toggle between 50 and 200 kHz, or
select via the ECHO menu.

Gain - Adjust gain with the [GAIN-] and [GAIN+] keys to just below the
point where you begin to see speckles of ‘noise’ on the screen.

Range - Select range by the numeric keys 1-9, or adjust with the +/- keys.
Key 0 will select Auto Range.

Bottom expansion - Press [B-LCK] from any display (see section 1.3.1), or
with echo display in active screen the function can be turned on/off from the
ECHO menu. Activate bottom expansion to expand the view of the bottom in
the echosounder display.

VRM expansion - Press [ZOOM] from any display (see section 1.3.1), or
with echo display in active screen the function can be turned on/off from the
ECHO menu. Activate VRM expansion to expand the view near the VRM ­Variable Range Marker - in the echosounder display. Use the up/down cursor
to activate and move the VRM line. Turn off the VRM line with [CLR].

Echo setup (presentation) - Press [ENT] from echo display to access the setup
display for either 50 or 200 kHz. Press [ENT] to confirm changes, or leave the
setup without having made any changes by pressing [MENU].

EQ33 Fundamentals & initial start-up Chapter 2-1

2.1 Fundamentals of the display and page system

The EQ33 Echosounder has a multi-function screen and data presen­tation system with full screen or a split screen with echo display and
data.

Full screen. Split screen.

There are four preset pages which
can be set up to the presentation you
prefer - see next page.

Chapter 2-2 EQ33 Fundamentals & initial start-up

Toggle between the four pre-set pages manually:

PAGE

Press the [PAGE] key - again and again - to toggle between the 4

pre-set pages, which as default are: Echo 200kHz display, Depth &
temperature diagram, Position display, and Highway display.

Toggle between the four pre-set pages automatically:

PAGE

Hold the [PAGE] key depressed for two seconds to start a rotation of

the 4 pages in intervals of 5 seconds - this interval can be changed,
refer to section 7.1. Press [PAGE] again to return to normal opera­tion.

Example of how to change a pre-set page:

For instance, if you wish to have the Echo 50kHz display inserted in
the PAGE sequence instead of the Highway display:

PAGE

Press the [PAGE] key until the Highway display appears

MENU

Call up the menu bar, and...

3,1

then call up the Echo 50kHz display

 The same display can be selected for view in more than one page

if it is selected via the menu. The hotkeys: [STND], [B-LCK] and
[ZOOM] will jump to the page with the desired display - if it’s there,
and if it’s not: it will replace the display in the active page.

EQ33 Fundamentals & initial start-up Chapter 2-3

2.2 Key functions

Some of the key functions are general and can be applied at any
time, other key functions are related to a certain menu(s) and can
only be applied when in the appropriate menu.

MENU

Turns the menu bar on/off. Exits any data display without taking any

action.

EVENT

Inserts a vertical mark at current ping and sends out WPL via

NMEA to connected chartplotter.

+/-

Changes echosounder range i.e. + (plus) selects a larger range) /

- (minus) selects a smaller range). Toggles between available values.

GAIN

+/- Adjusts echosounder gain. Optimum adjustment: Press [GAIN+]

till noise appears in ‘water’, then press [GAIN-] till noise just disap­pears again.

STND

Shortcut to standard echo display from any other display. Toggles

A-scope on/off. Hold two seconds to toggle between 50 and 200 kHz
frequency.

B-LCK

Shortcut to Bottom lock display from any other display. Bottom lock

is a combination of standard echo display and extended area around
the bottom. When bottom lock is turned on, the [B-LCK] key will
toggle A-scope on/off.

ZOOM

Shortcut to VRM expansion from any other display. VRM expansion

is a combination of standard echo display and extended area around
the VRM - Variable Range Marker. When zoom is turned on, the
[ZOOM] key will toggle A-scope on/off.

PAGE

Toggles between four pre-selected pages (screens). Hold 2 seconds

for automatic rotation of the four pre-selected pages. A new, single
press will resume normal operation.

ENT

Opens for/confirms insertion and editing of data. Gives access to

data and setup displays related to active display.

Moves cursor in data displays. Moves left/right/up/down in the menu

system. Adjusts gain (left/right). Activates and moves the VRM line
(up/down).

Chapter 2-4 EQ33 Fundamentals & initial start-up

0-9

The alpha-numeric keys inserts and selects data in data displays.

Keys 1-9 are also Quick-range keys, which each represent a fixed
echosounder range. Key 0 will activate auto range.

PWR

Calls up a window where you can adjust the brightness in the screen,

background light in keypad, and select Daylight displays, Night
display or custom made color palettes. Hold two seconds to turn the
power off.

CLR

Turns off VRM line in echo display. Deletes data in enter or edit

mode.

2.3 Menu bar

MENU

Toggles the menu bar on/off

To fit the complete menu bar across the screen, some of the menus
have been abbreviated. However, the last selected menu will be high­lighted, and if it’s an abbreviation of the menu, then the complete
menu title is written above the menu bar e.g.:

ECHOSOUNDER

1

POS

2

PILOT

3

ECHO

4

MISC

5

SETUP

1

Echo 50kHz

2

Echo 200kHz, etc.

Having selected e.g. 3:ECHO from the menu bar, its associated
menus will drop down. Key in the number next to the function you
wish to call forward, or use the cursor key to highlight the function
and press [ENT].

If you want to switch to a different menu, use the cursor key left/
right to move to the adjacent menu.

The menu bar will disappear from the screen at the selection of a
function, or by pressing the [MENU] key. Besides, if not used, it
automatically turns off after 30 seconds.

EQ33 Fundamentals & initial start-up Chapter 2-5

2.4 Menu layout

1

POS

2

PILOT

3

ECHO

1

Position

1

Highway

1

Echo 50kHz

2

Echo 200kHz

3

Turn bottom expansion ON

4

Turn VRM expansion ON

5

Turn A-scope ON

6

Depth & temperature diagram

7

Echosounder setup

4

MISC

5

SETUP

1

Wind

1

Speed alarm, units & language

2

DSC alarm

2

NMEA interface

3

Alarm output

4

Decca lanes

5

Loran C

6

Display color

7

Factory settings

Most functions in the menus are general, and can be called forward at any
time, but a few are related to a certain menu(s) and can only be called forward
or activated in the appropriate menu. Inactive functions in the menu will have
a different color from the rest of the functions.

When selecting a sub-menu in the SETUP menu, the display will always
appear in a pop-up window, so once you have accepted the changes / or decide
to just exit the display, then the display will disappear from the screen.
It will not stay on as part of the page system, as you have no use for this type
of display in the page system.

Chapter 2-6 EQ33 Fundamentals & initial start-up

2.5 Initial start-up

PWR

To turn on the EQ33, press and hold the [PWR] key till a picture

appears on the screen

ENT

Press [ENT] when the legend ‘System Ready’ appears on the screen

PWR

Press [PWR] again to adjust the lighting in the screen and select day

or night display etc., move around in display by means of the cursor
key and change settings with +/- keys, and...

ENT

Confirm with [ENT]

Customizing the EQ33 to suit individual needs can be done as you
go along i.e. choose a different color for the display background,
text, menu, etc. But to start out it will be wise to select the display
language you prefer to use:

MENU

Call up the menu bar, and...

5,1

press [5], [1] to call up the language display

Press up on the cursor to jump to the bottom line in the display

+/-

Select language

ENT

Confirm entry

The EQ33 has a demo program, which can be activated in the
Echosounder setup display, refer to section 5.8.

 When a transducer has been installed and selected, and the echo-

sounder is set up and ready to perform, please make sure that the
demo mode is switched OFF.

2.6 Turn power off

PWR

Call up INFO window, and...

PWR

Press and hold until screen turns black

The EQ33 is now turned off. All the data and setups are saved and
stored in the internal memory and, of course, will be available next
time the unit is turned on.

EQ33 Position menu Chapter 3-1

3. Position menu

1

POS

1

Position

3.1 Position display

 To present a position will require that the echosounder is con­nected to a navigator (GPS position sensor).

MENU

Call up the menu bar, and...

1,1

load Position display

Trip log 1 and 2.

Position in three deci­mals in minutes.

Water speed/speed
over ground.

Course, magnetic or
true.

Editing of position display

Reset log or change the start figure, adjust local time and date,
change position presentation i.e. SOG - speed over ground or STW

- speed through water, and - course and bearing can be set to either
magnetic or true.

ENT

Open for change

Move cursor to the value you want to change

Chapter 3-2 EQ33 Position menu

CLR

Press [CLR] to reset log

+/-

Toggle between available values, change time and date

ENT

Confirm entry

EQ33 Pilot menu Chapter 4-1

4. Pilot menu

2

PILOT

1

Highway

4.1 Highway display

To present any information in the EQ33 highway display will require
that a navigator is connected via the NMEA input port (PWR) - refer
to section 9.5 Electrical connections.

 The connected navigator must be in navigation mode, which
could be Cursor, Waypoint, Route or Track navigation - see next
page.

4.2 Navigation setup

MENU

Call up the menu bar, and...

2,1

load Highway display

Since there is no navigation mode active, you will receive the legend:
NAVIGATION IS OFF. To enter the basic Navigation setup:

ENT

Load Navigation setup

Navigation setup:

XTE distance: 00.10nm

Alarm distance can be changed in this display, but alarm can only be
initiated from the connected navigator. Maximum setting in nautical
miles is 9.99 nm.

ENT

Return to Highway display







Chapter 4-2 EQ33 Pilot menu

Highway display (with active navigation mode)

Nautical miles indication on horizontal lines indicates how many
nautical miles there are from ship’s position to the horizontal line.

C: Course over ground
X: Cross-track-error
S: Speed over ground
B: Bearing to approaching WP
D: Distance to waypoint
V: Speed towards WP (velocity)

Bottom line indicates name/number of approaching waypoint or
routepoint.

 Ship’s position and heading in relation to intended track.

 Ideal course line between two waypoints starting from ship’s

position when a navigation mode is activated on connected navi­ gator.

 XTE alarm lines - an alarm will sound if the ship touches the
lines.

EQ33 Echosounder operation Chapter 5-1

5. Echosounder operation

The echosounder function of the EQ33 determines the distance
between its transducer and underwater objects such as fish, lake
bottom or sea bed. It does this by utilizing the fact that an ultrasonic
wave transmitted through water travels at a nearly constant speed
of 1500 meters (4800 feet) per second. When a sound wave strikes
an underwater object such as fish or sea bottom, part of the sound
wave is reflected back toward the source. Thus by calculating the
time difference between the transmission of a sound wave and the
reception of the reflected sound wave, the depth to the object can be
determined.

The entire process begins in the display unit. Transmitter power is
sent to the transducer as a short pulse of electrical energy. The elec­trical signal produced by the transmitter is converted into an ultra­sonic signal by the transducer and transmitted into the water. Any
reflected signals from intervening objects (such as a fish school)
are received by the transducer and converted back into an electri­cal signal. It is then amplified in the amplifier section, and finally,
displayed on the screen.

The picture displayed is made up of a series of vertical scan lines
(pings), one for each transmission. Each line represents a ‘snapshot’
of what has occurred beneath the boat. The series of snapshots are
accumulated side by side across the screen, and the resulting con­tours of the bottom and fish between the bottom and surface are
displayed.

Selecting echosounder displays

The EQ33 provides various types of echosounder displays: standard
echogram, A-scope, bottom expansion (zoom) and VRM expan­sion. Each display has its special advantages. Select the appropriate
setup for the echosounder display in the presentation “Setup” and
“Echosounder setup” displays, considering current sea area and
target fish.

Chapter 5-2 EQ33 Echosounder operation

5.1 Echosounder menu

3

ECHO

1

Echo 50kHz - see section 5.2

2

Echo 200kHz - see section 5.2

3

Turn bottom expansion ON - see section 5.3

4

Turn VRM expansion ON - see section 5.4

5

Turn A-scope ON - see section 5.5

6

Depth & temperature diagram - see section 5.7

7

Echosounder setup - see section 5.8

5.2 Echosounder display

Low and high frequency echosounder display can be set up sepa­rately. The low frequency display will show deep water bottom
contours, and the high frequency display will show the mid-water
section with trawl targets or bait fish in a higher resolution.

As an example:

MENU

Call up the menu bar, and...

3,2

load the Echo display for 200kHz

- see display example on next page.

STND

Hotkey to Echo display i.e. jumps to page with Echo 50kHz or Echo

200kHz display; if none: inserts Echo display in active page.

 
2 secs.

From active echo display: hold either [STND], [B-LCK] or [ZOOM]

depressed for two seconds to toggle between 50 and 200 kHz dis­plays.

EQ33 Echosounder operation Chapter 5-3

This is the basic presentation mode (standard display) for observing
fish schools and sea bed. Some surface noise may appear just below
the transmission line.

Transmis­sion line

Depth range
is adjustable
with +/­keys or the
Quick-range
keys 1-9.

Press key 0
to return to
Auto range.

Press cursor left/right to adjust gain

The data field is preset to show: Actual depth *DK, transmit power
A100W (set to AUTO), transmission pulse length A- SHORT (set
to AUTO), water temperature T in Celcius or Fahrenheit (in 1/10
degrees), water or SOG speed S in knots or kilometers/hour or
miles/hour - units can be changed in Setup for units (MENU,5,1).

*) Actual depth i.e. Depth below Keel/Surface/Transducer - settings
can be changed in Echosounder menu (MENU,3,7).

 Refer to Appendix A for further description of the various functions.

ENT

Direct access to Setup display related to active echo display 50kHz

or 200kHz - (see section 5.9)

Use the cursor to go to the function you wish to change the value for

+/-

Toggle between available values

ENT

Confirm changes

Chapter 5-4 EQ33 Echosounder operation

5.3 Bottom expansion

The advanced bottom lock and expansion feature ensures a reli­able depth readout and provides a compressed standard display in
the upper half of the display. The bottom area can be magnified for
better separation of echoes. The actual size of the expansion window
can be adjusted in the Setup display for 50kHz/200kHz.

As an example, from active Echo 50kHz display:

MENU

Call up the menu bar, and...

3,3

activate bottom expansion...

... or just press:

B-LCK

Call up the bottom lock display

+/-

Adjust range with the + and - keys

ENT

Open Setup display - if any changes are required (see section 5.9)

ENT

Confirm changes

EQ33 Echosounder operation Chapter 5-5

5.4 VRM expansion

This feature will provide an expanded view of the area near the
Variable Range Marker which will give a better separation of echoes.
The actual size of the expansion window can be adjusted in the
Setup display for 50kHz/200kHz.

As an example, from active Echo 50kHz display:

MENU

Call up the menu bar, and...

3,4

activate VRM expansion

... or just press:

ZOOM

Call up the zoom display

The zoom level can be selected in seven steps, ranging from 1 to 50
meters, or converting to feet or fathoms (refer to Setup for units, sec­tion 7.1). The VRM horizontal line can be moved up/down by means
of the cursor.

+/-

Adjust range with the + and - keys

ENT

Open Setup display - if any changes are required (see section 5.9)

ENT

Confirm changes

Chapter 5-6 EQ33 Echosounder operation

5.5 A-scope

The amplitude scope, which appears in the right side of the echo
display, can be turned on and off.
The readout indicates the precise amplitude or strength of the last
received ping (sounding), which often can be used for determining
individual species of fish or hardness or the bottom.

As an example, from active Echo 50kHz display:

MENU

Call up the menu bar, and...

3,5

turn A-scope ON

 or... toggle the A-scope function on/off from active echo display:

STND

press either [STND] from standard echo display, or...

B-LCK

press [B-LCK] from echo display with bottom expansion, or...

ZOOM

press [ZOOM] from echo display with VRM expansion.

The vertical EVENT marker in this display is activated by the
[EVENT] key - see Appendix A for further details.

+/-

Adjust range with the + and - keys

ENT

Open Setup display - if any changes are required (see section 5.9)

ENT

Confirm changes

EQ33 Echosounder operation Chapter 5-7

5.6 Variable range marker

From active echo display:

Activate the Variable Range Marker function, and...
Move the VRM up/down

+/-

Adjust the range by means of the +/- keys

CLR

Turn VRM off again

5.7 Depth & temperature diagram

MENU

Call up the menu bar, and...

3,6

activate Depth & temperature diagram

Present water
temperature
and depth.

Depth over
time or dis­tance.

Temperature
over time or
distance.

ENT

Call Setup for Depth

-see display example next page.

Chapter 5-8 EQ33 Echosounder operation

Setup for Depth:

Scale for depth: 0 -> 100 m

Color for depth:

Scale for temperature: 0 -> 20 °C
Color for temperature:

Interval of screen: TIME
Time interval: 5 MIN.

Go to the function you wish to change

0-9

Key in new figures, or...

+/-

change settings

ENT

Confirm changes

Scale for depth - there are six depth scales to choose from, ranging
from 0 -> 10m to 0 -> 3000m. Toggle between values with +/- keys.

Color - for depth and temperature can be changed. Toggle between
available colors by means of the +/- keys.

Scale for temperature - can be set to 0 -> 10°, 0 -> 20°, 0 -> 30°,
10 -> 20°, and -10 -> 10°.

Interval of screen - the interval for updating of screen can be
related to TIME or DISTANCE.
TIME interval can be set in 6 intervals from 5 minutes to 3 hours (+
freeze) for refreshing of the screen.
DISTANCE can be set in 7 intervals, ranging from 0.05nm to 90nm
in order to adjust to the speed of the ship, and you can freeze the
reading.

EQ33 Echosounder operation Chapter 5-9

5.8 Echosounder setup

The Echosounder setup display mainly consist of general settings,
but also applies to a specific frequency where stated. The EQ33 fea­tures semi dual transceiver transmitting at 50 and 200 kHz.

MENU

Call up the menu bar, and...

3,7

activate Echosounder setup display

Use the cursor key to move cursor around in the display

+/-

Select new values by means of the +/- keys

ENT

Confirm changes, or...

MENU

Abandon changes and exit display

Transducer - select transmitter frequency 50kHz or 200kHz. Insert
the depth (position) of the transducer below surface.

Display can show: DEPTH BELOW KEEL / SURFACE / TRANS­DUCER.

Chapter 5-10 EQ33 Echosounder operation

Data on NMEA-out from - select the frequency you wish to use for
transfer of data to connected navigator, plotter, etc.

Alarm for fish - set the strength from min. 00 (weak echo) to max.
99dB (strong echo), and you can set it ON or OFF.

Depth DS fish - define a specific area below the water surface of
minimum and maximum depth for the fish alarm.

Depth DK alarm min. and max. - set up a depth limit alarm for
depth below keel.

Water profile - choose between SALT and FRESH water. The set­ting will reflect on the:

Velocity of sound in water: SALT = 1470 meters per second and
FRESH = 1430 meters per second as standard. The standard set­tings can be even more accurate by slightly increasing the number of
meters in warm waters and decreasing in cold waters.

Time/distance scale - will indicate the elapsed time or distance for
the echo picture. The readout will appear in the upper part of the
echo display. Toggle between time and distance in “Scroll synchro­nisation”, section 5.9.

Echo sampling - is preset to BOTTOM, which enables auto range
and a view all the way to the bottom. In RANGE the unit will not
wait for a bottom echo, but transmit a new pulse as soon as the
selected range has been reached. This mode will often improve
bottom detection and digital depth readout for vessels moving at
higher speeds. Also, it will enable a more detailed search for fish
in mid water range. Auto range is automatically switched off. The
depth alarm setting will have a higher priority than the selected
depth range.

Demo mode - the echosounder will function as though a transducer
was connected, but all data presented in the display will be simu­lated.

EQ33 Echosounder operation Chapter 5-11

5.9 Presentation setup

The most common settings for adjusting the presentation of the high
or low frequency echo picture are accessed by a single keystroke.

ENT

Press [ENT] from active echo display

Setup 200kHz:

Range start: 000 m
Range: AUTO
Gain: +30dB
White line: OFF
Expansion window: 6 m
TVG: Normal (20 log R)
Ping to ping filter: ON
Signal threshold: OFF
Color threshold:

OFF
Depth grid: OFF
Transmit pulse length: AUTO

Transmit power: AUTO
Scroll synchronization: TIME
Scroll speed: HIGH

 For details on the functions, refer to Appendix A.

Use the cursor key to move cursor around in the display

0-9

Key in new figures, or...

+/-

Toggle between available values

ENT

Confirm changes, or...

MENU

Abandon changes and exit display

Chapter 5-12 EQ33 Echosounder operation

EQ33 Miscellaneous menu Chapter 6-1

6. Miscellaneous menu

4

MISC

1

Wind - see section 6.1

2

DSC alarm - see section 6.2

6.1 Wind display

The EQ33 is ready to present wind data from connected instruments.
Wind data - the ‘wind instrument’ can provide both wind direction

and wind speed, and the readings can be shown in relative or true
(when the data is supplied from connected wind instrument).

MENU

Call up the menu bar, and...

4,1

load the ‘Wind instrument’ display

True wind
direction.

Wind rela­tive to vessel.

Wind speed,
relative or
true.

Chapter 6-2 EQ33 Miscellaneous menu

ENT

Load Setup for Wind display

Setup for Wind:

Damping level: MEDIUM
Relative wind scale: NORMAL
Wind angle offset: 00 0°
Show wind speed as: RELATIVE
Wind speed unit: METERS/SECOND

Go to the function you wish to change

+/-

Toggle between settings, or...

0-9

Key in new figure

ENT

Confirm entry and return to Wind display

Damping level - can be set to LOW, MEDIUM or HIGH. The higher
level the more steady and slow reacting reading.

Relative wind scale - can either be set to NORMAL (0-180°) or
MAGNIFIED (0-60°).

Wind angle offset - can be from 0 to 360°.
Show wind speed as - TRUE or RELATIVE.
Wind speed unit - can be either METER/SECOND, KNOTS,

KILOMETERS/HOUR or MILES/HOUR.

EQ33 Miscellaneous menu Chapter 6-3

6.2 DSC alarm (feature prepared for future DSC VHF)

To receive a DSC Alarm and Message from VHF will require that
the EQ33 is connected to a compatible Simrad VHF radiotelephone.

The message from the VHF will appear in a pop-up window together
with an acoustic alarm. Press [CLR] to reset the alarm.

To view the last received message:

MENU

Call up the menu bar, and...

4,2

load the DSC alarm display

Chapter 6-4 EQ33 Miscellaneous menu

EQ33 Setup menu Chapter 7-1

7. Setup menu

5

SETUP

1

Speed alarm, units & language - see section 7.1

2

NMEA interface - see section 7.2

3

Alarm output - see section 7.3

4

Decca lanes - see section 7.4

5

Loran C - see section 7.5

6

Display color - see section 7.6

7

Factory settings - see section 7.7

7.1 Speed alarm, units & language

MENU

Call up the menu bar, and...

5,1

load Speed alarm, units & language display

Setup for speed:

LOG speed sensor: ON
LOG speed calibration:019000 PULSES/nm
Speed alarm maximum (SOG):000.0kn OFF
Speed alarm minimum (SOG):000.0kn OFF

To select
new values
for this
setup
display, see
next page.

Setup for units:

Depth/altitude in: METERS
Distance in: NAUTICAL MILES
Speed in: KNOTS
Temperature in: DEGREE CELCIUS

Software version: EQ33 1.10

PAGE

More (1/2) Scroll



MENU

Exit Accept

ENT

Scroll up/down to go to the function you wish to change

PAGE

Toggle between page 1 and 2

0-9

Key in new values, or...

Chapter 7-2 EQ33 Setup menu

+/-

Toggle between available values

Serial number: 0x00ffffff
Interface software version: 0x00000025

PAGE rotation interval: 05 sec.
Display text in: English GB

Example of
the Speed
alarm, units
& language
display,
page 2.

PAGE

More (2/2) Scroll



MENU

Exit Accept

ENT

ENT

Confirm changes, or...

MENU

exit function without making any changes

Setup for speed:

LOG speed sensor - set to ON, the position display will show water
speed from external log sensor (via ECHO port).

-with NMEA sentence VHW set to ON, the readout will show water
speed from external water speed instrument (via NMEA port).

LOG speed calibration - calibrate log speed readout by increasing/
decreasing the number of pulses per nautical mile - see also Appen­dix A.

Speed alarm - can be set to maximum and/or minimum cruising
speed. This may be handy for trawl fishing, entering harbors with
speed limits, etc.

 Press [CLR] to reset an alarm - this applies to all activated alarms in

the system.

EQ33 Setup menu Chapter 7-3

Setup for units

Depth altitude in - can be set to meters (m), feet (ft) or fathoms
(fm).

Distance in - can be calculated in nautical miles (nm), kilometers
(km) or statue miles (mi).

Speed in - can be shown in knots (kn), kilometers/hour (kh) or
miles/hour (mh).

Temperature in - can be shown in Celcius or Fahrenheit.

Software version - indicates which software version is installed in

the unit.

Serial number - indicates the unit’s serial number.
Interface software version - indicates which version is installed in

the unit (for technicians only).
PAGE rotation interval - can be set to anywhere between 03 to 99

seconds. Refer to “Fundamentals of the display and page system” in
section 2.1 for more details on how the function works.

Display text in - as standard the EQ33 is supplied with the follow­ing national display languages: Danish (DK), English (GB), English
(US), French (F), German (D), Italian (I), Nederlands (NL), Spanish
(E), Swedish (S), and Portuguese (P).

Chapter 7-4 EQ33 Setup menu

7.2 Interface setup, NMEA

The next pages indicate the default settings for the interface setups.
After the interface setups will follow a description of the input and
output sentences available in the setups.

MENU

Call up the menu bar, and...

5,2

load NMEA interface

PAGE

Toggle between the two pages of sentences

-refer to 7.2.1 default settings and 7.2.2 description of sentences

+/-

Toggle between INPUT and OUTPUT

Go to any sentence you want to change

+/-

Toggle between values, and between ON and OFF

ENT

Confirm entry, and accept warning (press [ENT] again), or...

MENU

exit function without making any changes

EQ33 Setup menu Chapter 7-5

7.2.1 Default sentences

Interface setup - INPUT - Port NMEA0183:

Sentence

String Status

Water data:
Water temperature: MTW OFF
Water speed: VHW OFF

Heading data:
Heading: HDG ON

Position data:
Position: GLL ON
Course: VTG ON
Speed: VTG ON

Navigation data:
Navigation (APB,RMB,XTE): ON

-----------------------------------------------

Interface setup - OUTPUT - Port NMEA0183:

Sentence

String Status

Water data:
Depth below keel: DBK OFF
Depth below surface: DBS OFF
Depth below transducer: DBT OFF
Depth: DPT ON
Water temperature: MTW ON
Water speed and heading: VHW ON

Waypoint data:
Waypoint location: WPL ON

-------------------------------------------------

Chapter 7-6 EQ33 Setup menu

7.2.2 Description of sentences

Description of NMEA0183 input sentences

MTW Water temperature.
VHW Water speed and heading.
GLL Geographic position, latitude/longitude.
RMA Recommended minimum specific Loran C data.
RMC Recommended minimum specific GPS data.
GGA Global Positioning System fix data.
VTG Track made good (course) and ground speed.

Description of NMEA0183 navigation input sentences

APB Autopilot sentence “B”.
RMB Recommended minimum navigation information.
XTE Cross-Track-Error, measured.

Description of NMEA0183 version 2.0 output sentences

DBS Depth below surface.
DBK Depth below keel.
DBT Depth below transducer.
DPT Depth, including offset.
MTW Water temperature
VHW Water speed and heading.
WPL Waypoint location

EQ33 Setup menu Chapter 7 -7

7.3 Interface setup, alarm output

MENU

Call up the menu bar, and...

5,3

load display for Alarm output

Interface setup, alarm:
Output (pin 1,2): ON
Alarm stand-by level: LOW

MENU

Exit Accept

ENT

The stand-by level can either be: LOW = 0 volt or HIGH = 5 volt.

Use cursor to move around in display, and...

+/-

Toggle between available settings

ENT

Confirm entry, or...

MENU

exit function without making any changes

Chapter 7-8 EQ33 Setup menu

7.4 Decca lanes

 To present a position will require that the echosounder is con­nected to a navigator.

MENU

Call up the menu bar, and...

5,4

load decca chain display

+/-

Leaf through the available chains - see below.

ENT

Confirm entry

List of decca chains:

00 S Baltic 0A 24 Skagerak 10B
01 Vestlandet 0E 25 N Persian 5C
02 SW British 1B 26 S Persian 1C
03 North Humber 2A 27 Bombay 7B
04 Holland 2E 28 Calcutta 8B
05 British 3B 29 Bangladesh 6C
06 Lofoten, Norway 3E 30 Hokkaido 9C
07 German 3F 31 Tohoku 6C
08 N Baltic 4B 32 Kyusyu 7C
09 NW Spanish 4C 33 Namaqua 4A
10 Trondelag (N) 4E 34 Cape chain 6A
11 English 5B 35 E Province 8A
12 N Bothnian 5F 36 Dampier 8E
13 S Spanish 6A 37 Port Hedld 4A
14 N Scottish 6C 38 Hokuriku 2C
15 Finland 6E 39 Newfoundld. 2C
16 Danish 7B 40 Cabot strt 6B
17 Irish 7D 41 Nova Scotia 7C
18 Finnmarken 7E 42 Salaya 2F
19 French 8B 43 Kanto 8C
20 S Bothnian 8C 44 SW Africa 9C
21 Hebridean 8E 45 Natal 10C
22 Frisian 9B 46 Shikoku 4C
23 Helgeland 9E

EQ33 Setup menu Chapter 7-9

7.5 Loran C

 To present a position will require that the echosounder is con­nected to a navigator.

MENU

Call up the menu bar, and...

5,5

load Loran C chain display

+/-

Leaf through the available chains - see listing below.

If required, go to the slaves, and...

+/-

Toggle between available slaves (not all chains have more than one

slave)

0-9

...and it is possible to alter the figures in the time delay

If required, go to Offset, and key in a positive or negative offset

0-9

Key in a positive or negative offset to the time delay (toggle positive/

negative with +/-)

ENT

Confirm entry

List of Loran C chains:

Central Pacific
Gulf of Alaska
Southeast U.S.
Great Lakes
Northeast U.S.
Canadian West Coast
Canadian East Coast
Labrador Sea
West Coast U.S.
North Pacific

4990
7960
7980
8970
9960
5990
5930
7930
9940
9990

Commando Lion
North West Pacific
Norwegian Sea
Mediterranean Sea
Icelandic
Saudi Arabia South
Saudi Arabia North
Eastern U.S.S.R.
Western U.S.S.R.

5970
9970
7970
7990
9980
7170
8990
7950
8000

Chapter 7-10 EQ33 Setup menu

7.6 Display color

MENU

Call up the menu bar, and...

5,6

load the Palette setup

Palette 1 to 4 are preset to bright daylight (sunshine) in 1 and 2,
normal daylight in 3, and night setting in 4. These four setups are not
adjustable. Palette 5 to 9 can be customized to suit individual needs
and wishes. If you wish to make your own special palette setup in
e.g. palette 5, then:

5

Select Palette setup: 5

Use cursor to scroll up/down in display

A-Z

Key in a name for the new palette setup - max. 29 characters,

-refer to “Alphanumeric names” next page.

PAGE

Toggle between page 1 and 2

+/-

Toggle between available color settings

ENT

Confirm new setup

Page 1 of 2.

EQ33 Setup menu Chapter 7 -11

Page 2 of 2.

Alphanumeric names:

First select the key with the desired letter, then you can either repeat the
keystrokes, which will toggle between e.g. A,B,C,1, or once you have selected
one letter you can go back and forth in the alphabet by means of the +/- keys.
Use the cursor key to go to next space or to go back one space if you make a
mistake.
Depending on the selected language, the 0 (zero) key will hold special charac­ters e.g. Æ Ø Å Ä Ö Ü Ñ, and the 9 (nine) key will hold: (empty space) . ­Press the [CLR] key to delete everything from cursor position and to the right
of cursor in that row.

7.7 Factory settings

DELETE MEMORY: It will be possible to erase all sounder set­tings or NMEA settings entered into the unit by the user, and return
to the default settings set up from the factory.

FACTORY PRESETS: If the unit is still ‘alive’ but has ceased to
respond to normal operation, it could become necessary to return to
the factory presets - but first check ‘Troubleshooting’ in section 9.9.

 Activating ‘Return to all factory presets’ will erase all user-made

settings and restore the basic default settings from the factory.
Show test display: Information in display is for technicians only.

Chapter 7-12 EQ33 Setup menu

MENU

Call up the menu bar, and...

5,7

activate the display for Factory settings

FACTORY PRESETS:

1

Return to NMEA presets

2

Return to SOUNDER presets

CLR

Return to all factory presets

0

Show test display

MENU

Exit

To activate any of the above-mentioned functions, please follow the
instructions in the display. However, any attempt to make any type
of change, will first of all generate a WARNING display to inform
you that you are about to erase some or all data/settings.

ENT

If you are absolutely sure, press [ENT] to complete the job

MENU

If not absolutely sure, press [MENU] to exit function without having

made any changes

POWER OFF - RESET

In case, for some reason, the unit is totally locked i.e. no immediate
response from the keypad, then first try to reset the unit by discon­necting the power supply. Reconnect the power cable and then start
up the unit again by presssing and holding the [PWR] key until a
picture appears on the screen.

MASTER RESET (will return all settings to factory presets)
If the Power off - reset does not solve the problem, you may have to
perform a master reset by disconnecting the power supply, and then
while reconnecting the power cable you will have to press the [PWR]
and [CLR] keys at the same time, and hold both keys depressed until
a picture appears on the screen. All user-made data will be erased,
and all settings are returned to factory presets.

EQ33 Principles of operation Chapter 8-1

8.1 Parts of an echosounder

An echosounder is composed of a display screen, processor, and transmitter/
receiver unit which in the case of the EQ33 are housed in one unit.
Connected to this unit by a shielded cable is the transducer, which is mounted
horizontally on the bottom of the hull or on the transom.

The display screen presents in graphic and numerical form the information
the processor is receiving and accumulating from the transducer.

The processor is the “brain” of the echosounder. It is sealed inside the unit
which protects it from harm. The processor is composed of highly sophisti­cated microprocessor, memory and logic circuitry.

The transmitter/receiver (often called the “transceiver”) section of your
echosounder takes it’s commands from the processor. The processor tells the
transceiver to activate the transmitter. The transmitter sends a high voltage
transmit “ping” to the transducer mounted on the hull. At that point the trans­mitter’s job is done and the receiver takes over (see fig.1 in section 8.2).

The receiver is also connected to the transducer and amplifies the very small
signals received as echoes from fish and the sea floor which arrive at the
transducer (see fig.2 in section 8.2). The receiver is designed to reject other
signals as much as possible and provide enough amplification to see even rela­tively small targets at long ranges.

The amplified receiver signals are then send to the processor to be shown on
the display screen.

The transducer can be single or multiple ceramic elements in a rugged hous­ing made from reinforced plastic, bronze or stainless steel. The transducer is
attached horizontally to the bottom of the hull. It is essential that the trans­ducer be mounted properly, as echo transmissions are radiated at aright angles
from the transducer face. Shielded cables connect the transducer with the
echosounder.

Chapter 8-2 EQ33 Principles of operation

8.2 How the echosounder works

When the EQ33 is turned on, the processor begins to
send electrical pulses to the transducer. The ceramic
resonator in the transducer has a special property
which enables it to change dimensions slightly when
a varying voltage is applied.

The voltage is thus converted to mechanical vibra­tions (sound waves) which are then transmitted down
through the water.
See Fig. 1.

Fig. 1 Transmitted ‘ping’
from the transmitter/receiver.

The sound waves move through the water until they
encounter a change in density, such as a fish or the
bottom. This causes the sound waves to ‘echo’ back
up through the water. When the reflected sound
waves (echoes) hit the transducer, the ceramic disk
vibrates at the same frequency. This generates a
varying voltage which goes back up through the
cable to the receiver.
The EQ33 processes the signals and presents them on
the display screen.
See Fig. 2.

Fig. 2 The up arrow indicates:
Echo returning to the receiver.
The down arrow indicates:
Transmitted pulse.

EQ33 Principles of operation Chapter 8-3

8.3 Transducer beam width

The transducer mounted to the hull of your vessel serves as both a ‘speaker’
when transmitting, and as a ‘microphone’ when the echosounder is receiv­ing. Similar to the way a flashlight focuses light, most of the sound from your
transducer is focused downwards with a smaller amount going out to the sides.
The amount of focusing of the sound beam is expressed as a ‘beam width’.

Transducer

Approximation of the sound

pattern below the transducer

This angle is the transducer’s

beam width

1/2 maximum intensity

Maximum intensity

Fig. 3 A representation of a transducer beam width.

The center of the sound beam is the most intense, then as you move out
towards the sides of the sound beam there is a point where the intensity of
the sound is half what it was in the center. The distance moved is the ‘beam
width’. See Fig. 3.

Chapter 8-4 EQ33 Principles of operation

8.4 Effects of the vessel’s speed

The presentation of fish on the EQ33 depends directly on the vessel’s speed,
as well as on the depth of the fish. When the vessel is at rest, the echo traces
will appear stretched and flattened. As the vessel’s speed becomes greater, the
echo traces will become shorter and more arched. The reason for this change
in appearance is that as the vessel speed increases, fewer number of sound
‘pings’ strike each fish. A low vessel speed will provide the most accurate
information of where fish are located.

EQ33 Installation and service Chapter 9-1

9. Installation and service

9.1 Installation notes

For a number of reasons, all user-related decisions, setups, etc.
should be noted in these two pages as they occur. This information
may be helpful if your unit has been updated with new software,
reset or in for service.

Transducer type:

Echosounder setup:

Transducer

Depth

Frequency

Keel depth

Other important settings:

Chapter 9-2 EQ33 Installation and service

Other important settings (continued):

45 mm (1.8”)

100.5 mm (4”)

37.5 (1.5”)
235 mm (9.3”)

252 mm (10”)

144 mm (5. 8”)

168 mm ( 6.6” )

EQ33 Installation and service Chapter 9-3

9.2 Installation of EQ33 Echosounder

The EQ33 can be flat or bracket mounted - overhead, bulkhead or console.

Bulkhead mounting
(approx. 10° tilt, allowing space for
connectors and cables)
Console mounting
(max. tilt 45°)

Chapter 9-4 EQ33 Installation and service

Overhead mounting Flush mounting Removable corner
for flush mounting

Refer to included
template for instruc­ tions on flush
mounting.

Bracket mounting

Secure the bracket with two wood screws or
bolts (incl.).

9.3 Location for display unit

Determine which place is the most suitable and convenient for navigation and
general operation after considering the following conditions:

- you can see the ship’s bow when you raise or lower your eyes from the dis­ play.

- there is limited exposure to direct sunlight to avoid overheating - see envi­ ronment temperature limits in 9.10 Specifications.

- there is good ventilation and minimum vibration.

- the minimum distance to a magnetic compass is 500mm (20”).

- provide sufficient space behind the unit to allow for proper cable connections
to the rear panel connectors.

Ground

Ground

Power cable (NMEA)

Power cable (Not usable)

Connection cable 12.5 m

- extendable to max.25 m

EQ33 Installation and service Chapter 9-5

9.4 Installation of DS33 Dual Station

The DS33 is a remote control unit for the EQ33 echosounder. Both units are
identical in size, so the same installation guides can be applied when perform­ing the installation.

 Refer to section 9.5 for details on pin numbers.

EQ33 DS33

9.4.1 Operation of DS33 Dual Station

The main unit and the dual station operate in parallel.
All key commands are relayed to the main unit - EQ33 - and the display pic­ture is instantly transferred back via a high speed data bus (HSDb).

Adjust light/contrast in screen and background light in keypad via the [PWR]
key.

ECHO Transducer
1: Speed Log
2: Speed Log 5V+
3: Depth +
4: Depth Shield
5: Depth ­6: GND T/S Log
7: Temperature

REMOTE
1: Pink Ext. Switch
8: Pink/black dot Ext. Switch (GND)
2: Purple Alarm out 5V/50mA
3: Purple/black dot Alarm out (GND)
4: Orange/white dot Dual station 1 (to 1)
5: Orange/yellow dot Dual station 2 (to 2)
6: Blue/white dot PC Link TxD
7: Blue/yellow dot PC Link RxD

Ship’s

Ground

1 & 2: Red Supply +
10 - 32 Volts

3 & 4: Black Supply -

NMEA In
NC Rx-Shield
9: Yellow Data in (Rx)
6: Green Return

NMEA Out
5: Braid Tx-Shield
7: White Data out (Tx)
8: Brown Return

NMEA 2000

Optional

Fuse 4.0A slow

Chapter 9-6 EQ33 Installation and service

9.5 Electrical connections

EQ33 Installation and service Chapter 9-7

9.5.1 Power supply connections

The internal voltage regulator will allow the EQ33 to operate normally within
the power supply voltage range from 10 to 32 V DC. The EQ33 is connected to
external power (battery) by means of the supplied power/NMEA cable. Cable
length is approximately 2 meters.
After connecting the cable to the power source, push the plug as far as it will
go into the nine pin receptacle marked “PWR” on the rear of the cabinet and
turn the plug’s coupling ring clockwise until it makes a click.

9.5.2 Fuse

Warning! A fuse should always be installed to protect the unit.
Using a fuse which is not specified for your equipment can cause it to blow
the instant the EQ33 is switched on or it will not protect the equipment as
intended – see fuse rating in section 9.10 Specifications.

9.5.3 Transducer connection

Most transducers are supplied with a 10 meter cable for connection to the
echosounder unit – EQ33. Push the female plug, as far as it goes, into the
receptacle marked “ECHO” on the rear of the cabinet and turn the plug’s cou­pling ring clockwise until it clicks into locked position
 The EQ33 must be turned off while connecting/disconnecting the trans­ducer cables.

Recommended transducers

Airmar single element two-frequency 50/200 kHz transducers i.e. B744, P319,
B45, B256, P66 and P52.

9.5.4 NMEA0183 interface connection

NMEA0183 interface connection is made via the combined power and NMEA
cable.

9.6 Basic transducer and cable information

The installation should be carefully planned in advance, keeping in mind the
standard cable length of 10 meters (32 feet) which is connected to the trans­ducer. In the event where the standard cable is not long enough, up to an addi­tional 10 meters (32 feet) may be connected without a noticeable reduction of
the performance. The cable must be of the same type as the standard cable.
 The EQ33 must be turned off while connecting/disconnecting the trans­ducer cable.

The use of longer cable runs, while possible, always increases the likelihood of
increased interference and decreased performance. Care must be taken when
increasing the cable lengths to ensure that proper, adequate and consistent

Chapter 9-8 EQ33 Installation and service

shielding is maintained, that cable of adequate cross section is used, and that
all connections are properly made and protected from the effects of the marine
environment.

If possible, running the transducer cable through a grounded conduit will
greatly decrease the likelihood of interference. Likewise, the transducer cable
should be run as far as possible from other electrical cabling. If it is absolutely
necessary to pass close to other cabling, it is best to keep as much distance as
possible, and to make all crossings as close to a right angle as possible.

9.6.1 Transducers (optional)

Airmar P319

Thru-hull mount

Frequency: 50/200 kHz
Beam width: 45° / 15°
Cable length: 10m (32’)
Depth information.

Reference no. 179-0401-002 (P319)
Housing: Reinforced plastic
Recommended for fiberglass and metal
hulls. Do not use in wooden hulls!

Reference no. 179-0401-003 (B117)
Housing: Bronze
Recommended for fiberglass and
wooden hulls.

EQ33 Installation and service Chapter 9-9

Airmar P52

Transom mount

Frequency: 50/200 kHz
Beam width: 45° / 15°
Cable length: 10m (32’)
Speed, temperature + depth information

Reference no. 179-0401-001
Housing: Chemical resistant, high
impact plastic alloy.
Recommended for all type hulls.

Chapter 9-10 EQ33 Installation and service

Airmar SS505

- Optional fairing
Ref.no. 179-0401-011

Thru-hul stem mount

Accommodates hull thickness:
Min. no fairing 6 mm (1/4”), Max. with fairing 83 mm (3 1/4”)

Frequency: 50/200 kHz
Beam width: 45° / 15°
Cable length: 10m (32’)
Depth information.

Ref.no. 179.0401.004 (B45)
Housing: Bronze
Recommended for fiberglass or wooden hulls only.

Ref.no. 179.0401.008 (SS505)
Housing: Stainless steel
Recommended for any hull material.

EQ33 Installation and service Chapter 9-11

Airmar B744V

Thru-hull triducer

Frequency: 50/200 kHz
Beam width: 45° / 15°
Cable length: 10m (32’)
Speed, temperature + depth information.

Ref.no. 179-0401-009 (B744V)
Housing: Bronze
Recommended for fiberglass and
wooden hulls.

9.6.2 Determining the position for the transducer

The EQ33 is a sophisticated piece of electronic equipment, but how well it will
perform under actual operating conditions will be largely dependent upon the
location of the transducer and how it has been installed.
Careful consideration, therefore, must be given to selecting the mounting loca­tion and on deciding the method of installation that best suits the vessel.

Air bubbles and turbulence caused by the vessel’s movement through the water
will seriously degrade the transducer’s performance. Therefore the transducer
should be located well clear of any water intake or discharge line and also
clear of any projection along the hull line which might disturb the smooth flow
of water. It is of profound importance for good performance of the EQ33 that
the water flowing over the transducer be free of bubbles and aeration. If the
transducer face is clean but the performance degrades with increasing vessel
speed, then aeration of the water flowing under the transducer may be the
cause of the poor performance.

Due to the varying design of ship’s hulls and different operating speeds, there
can be great variation in the amount of air bubbles which are carried beneath
the hull. These bubbles tend to be carried close to the hull as they pass aft. For
this reason, it is desirable for the transducer to be mounted on a fairing block

Chapter 9-12 EQ33 Installation and service

which holds the transducer away from the hull and which directs the flow of
aerated water around the sides of the transducer rather than over the face of
the transducer.

On deep keeled vessels, care must be taken to ensure that the transducer beam
will not be blocked by any part of the keel. Although the appropriate mount­ing location that meets all requirements depends on the type of vessel and its
normal operating speeds, a practical choice is usually somewhere between one
third and one half of the vessel’s water line length from the bow. Levelling
blocks may be designed accordingly to meet this requirement.

 The more the transducer protrudes from the hull, the better the results will
be.

Particularly at lower frequency operation (50kHz), interference from propel­ler noise can be a significant problem. This can be seen as an increase in the
“noise” on the echosounder display when the propeller speed is increased. To
help reduce this, the transducer’s mounting face may be angled slightly for­ward on the order of 3-5°. The goal is to incline the transducer so that a line of
sight along the transducer’s radiating surface passes below the propeller.

 Keeping the propeller clean and free of any nicks or roughness will assist in
minimizing interference from propeller noise due to cavitation.

Sources of noise to consider:

Water/air

noise

Acoustic noise Electrical noise

Air bubbles
Tu r bulen ce
Propeller

Main engine
Reduction gear propeller
shaft
Generators auxiliary
engines
Power plant for freezers
Hydraulic pumps
Rudder engine
Bow thruster
Stern thruster

Noise from electrical cables
Noise from generators
Poor grounding of instrument
Radiated noise from other
instruments
Dc – Dc converters
Electrical winches
Neon lights
etc.

EQ33 Installation and service Chapter 9-13

9.7 Preventive maintenance

Surface cleaning – to keep the EQ33 cabinet and display screen clean, wipe
the surfaces with a clean damp cloth. For heavier cleaning, use a clean, damp
cloth which has been dipped in a solution of a mild dish detergent and water.
Wring out firmly before wiping the unit.
 Never use cleaning solutions containing spirit or alcohol.

Electrical connections – periodically check the electrical connections. Make
sure that connections are tight and that no cables are frayed or worn.

Transducer - periodically clean the face of the transducer with a plastic uten­sil using a scrubbing action.
 Do not use a harsh abrasive or a solvent to clean the transducer.

9.8 Repair and service

The EQ33 is sealed and does not contain any user serviceable parts. Opening
of this unit will void its warranty. If the EQ33 requires servicing or repair, call
your authorized SIMRAD dealer, but first check section 9.9 Troubleshooting.

Spare parts – fuses may be bought from a chandler or a marine supply store.
Use only fuses specified for this unit – see 9.10 Specifications.
If you require a SIMRAD part, please contact your authorized dealer.

Chapter 9-14 EQ33 Installation and service

9.9 Troubleshooting

For all fault finding, first check that the supply voltage is between 10-32 VDC

Symptom Check Remedy

No picture on display
screen

Check that the unit is
turned on

Press the [PWR] key on
keypad

Check fuse in power cable
fuse holder

Replace fuse. Use only
type 4.0A slow

Picture appears on the
display screen, but image
is too dark or too bright

Press [PWR], adjust light/
contrast, press [ENT]

No normal picture or key
operation

Turn unit off and on again

Disconnect power and
connect power again

Return to factory presets,
see section 7.7

Echo picture appears
normal, but no target are
shown or only random
“noise” is seen

Check that the correct
transducer frequency is
selected

Go to Echosounder setup
and select transducer
frequency

Check that the transducer
connectors are securely
mated with the unit

Correctly mate the con­nectors to the unit

Check that the receiver
gain is set high enough

Increase the receiver gain
in 5.9 Presentation setup

Check that the range is
correct for the water depth

Adjust the range in 5.9
Presentation setup

Excessive noise in echo
picture

Check for correct ground­ing

Connected equip­ment must be properly
grounded to the main unit

All data is deleted after
turning off the unit and
turning it back on

Check battery lifetime.
Expected lifetime is min.
5 years

Internal battery must be
replaced by authorized
dealer

EQ33 Installation and service Chapter 9-15

9.10 Specifications

General data

Power supply: 12 and 24 V DC (10-32 V DC max) 8-16 watt
Power cable: Power/NMEA cable, 2 m (153-6070-002)
Dimensions: H:144 mm (5.8”) W:252 mm (10”) D:70 mm (2.8”)
Weight: 1.5 kg (3.0 lbs)
Environment: -10 to +50°C, IEC 60945, waterproof USC 46 CFR and IP55
Housing: Casted aluminum back, polycarbonate front

Display: TFT color, power backlight: 5.7” 320x240 pixels, or .....

STN transflective monochrome 6” 320x340 pixels
Presentation: 4 pages. Manual, dedicated and remote switch, and automatic
sequencing.
Interfacing: 1 port in/out NMEA 0183
1 port NMEA 2000 (optional)
Alarm - signal output 5 V 50 mA
Fuse: 4.0A slow

Echosounder section

Frequencies: 50 or 200 kHz, selectable
Transmit power:600 watt RMS (4,800 W PP)
Impedance: 175 / 425 ohms
Display ranges: 5 to 1000 m in 21 steps, manual and auto mode
Detection
ranges: Frequency Beam Bottom
50 kHz 45° 800 m / 2,400 ft
200 kHz 15° 350 m / 1,050 ft
Pulse length: Short, medium, long and auto
Transmission
rate: Max. 10 pings per second
Alarms: Fish, max. and min. depth
Zoom mode: Bottom and VRM expansion, 6 to 50 meters, feet or fathoms
Event marker: At current ping and depth memory
Picture speed: True distance or time, high, medium, low, and freeze
Noise filter: User selectable on/off
Echo pre­sentation: A-scope and white line discrimination
Temperature: Sensor or NMEA
Speed: Sensor or NMEA

Chapter 9-16 EQ33 Installation and service

Alternative 50/200 kHz medium-rang transducers (Airmar Des.A)

B256: 1kW medium range transducer, 16x28° and 4x6° beams.
B45: 600W bronze stem mount transducer, 45° and 15° beam.
B744V: 600W bronze thru hull triducer, depth, speed and temperature,
45° and 15° beam.
P52: 600W plastic transom mount triducer, depth, speed and temperature,
45° and 15° beam.
P319: 600W plastic thru-hull transducer, 45° and 15° beam.
ST650: Speed and temperature only.

Options

DS33 Dual Station, 5.7” TFT LCD color screen or 6” monochrome, incl.

12.5 m cable (153-6070-004) - max. length 25 m.
Sunhood

EQ33 Glossary of terms Appendix A-1

Alarms – can be set to sound a “beep” if the echosounder detects a target
above (shallower than) a minimum alarm depth or below (deeper than) a maxi­mum alarm depth. The EQ33 allows you to set the alarm depths and to enable
or disable both the minimum and maximum depth alarms.

A-scope – a method of displaying the echosounder information. In A-Scope
mode, the echoes are displayed in a “bar-graph” format, with stronger echoes
displayed not only in the color representing their target strength, but also in a
width representing their target strength.

Color threshold – the color threshold function allows the “weaker” targets
and noise which may be shown on the display screen to be eliminated from
the display. These targets are usually shown in the weaker target colors such
as blues and greens. The Color threshold allows you to choose not to display
the blues, or the blues and greens, etc. Doing this will leave only the stronger
targets on the display screen.

Configuration – the configuration functions of the EQ33 allow you to adapt
the system more specifically to your needs. You may set Units of measure
(feet, fathoms, meters, etc.), Menu languages, Scroll speed, etc.

Depths – DK = Depth below keel, DS = Depth below surface, DT = Depth
below transducer.

Echogram background color – is the color shown on the EQ33 in the event
no target is present. There are three colors to choose from, white, blue or
black, where black is especially useful during nighttime operation when the
white background could appear too bright.

Echosounder frequency – 50 kHz or 200 kHz can be selected to suit the
task. 200 kHz is for general purpose and offers optimum discrimination and a
narrow transmitter beam. 50 kHz is for searching in a wider area, determining
bottom conditions and going the deepest.

Event marker – allows the user to set a vertical marker on the screen at the
current ping to indicate a school of fish, etc.

Expansion (zoom) – this function allows you to take a closer look at a par­ticular section of the water underneath your boat. You can expand the view
near the bottom (Bottom expansion) or near the Variable Range Marker (VRM
expansion). The amount of expansion can be adjusted in “Expansion window”,
Presentation setup.

Gain – is another way of saying “sensitivity”, or possibly “volume”. Increas-

Appendix A-2 EQ33 Glossary of terms

ing the gain setting of the EQ33 will allow you to see smaller and deeper
targets. If the gain is set too high, however, you will begin to see “noise” and
unwanted targets. Generally speaking, you want to set the gain control just
below the point that you begin to see speckles of “noise” between surface and
the bottom on the screen.

LOG speed calibration – the unit is preset to receive 19000 pulses per nauti­cal mile from the log transducer (paddle wheel). However the figure might
have to be changed to compensate for various transducers and actual water
flow passing the transducer. The correct pulse rate is calculated by:
19000 x indicated speed (e.g. 4kn)

= 15.200 pulses/nm

actual speed (GPS) (e.g. 5kn)

Measurement units – the user may select the displayed units to be one of the
following:
m meters
ft feet
fm fathoms
nm nautical mile, 1 nm is 1,852 meters
kn knots, nautical mile per hour
km kilometer, 1 km is 1,000 meters
kh kilometer per hour
mi statute mile, 1 mile is 1,609 meters
mh mile per hour

MENU – the selection of main menus will be shown in the upper part of the
screen. Leaf through the menus by means of the cursor key and the [ENT]
key, or use the numerical keys to activate one of the menus.

NMEA – National Marine Electronics Association. The NMEA is an organi­zation of manufacturers of marine electronics equipment. They have adopted
the NMEA0183 as a standard for communications between various types of
marine electronic equipment.

Ping to ping filter – can be set to either on or off. With the filter “off”, then
each received echo will be reflected on the screen. Whereas with the filter
“ON”, the system will compare every two echoes received and only reflect on
the screen what is received from both echoes, which will give a more unclut­tered and precise recording.

Pulse length – the transmitted pulse length can be set to OFF for observing
noise in the water (Auto range will switch to manual mode). Set to AUTO, the
optimum setting will be applied according to the water depth. Or it can be set
manually, if a specific pulse length is required - see next page:

EQ33 Glossary of terms Appendix A-3

SHORT less than 10m deep water

MEDIUM between 10 and 50 m deep water

LONG more than 50m deep water

 A long pulse will reach deeper but give less resolution.

Range – refers to the distance shown from the top to the bottom of the display
screen. Selecting Auto range will cause the EQ33 to change the basic range
setting(s) to keep the displayed bottom in the lower half of the display. For
instance, as your boat moves into deeper waters, the system will automatically
switch to a deeper range, always keeping the displayed bottom in the lower
half of the display. Manual range allows the operator to set the range dis­played on the screen.

Range start – allows the user to set the displayed depth range to begin at
some point below the surface. For example, a 100 meter displayed range can
be “phased” downwards, so that the screen shows a 100 meter section begin­ning at, say, 200 meters and going to 300 meters depth.

Scroll speed – is the rate of movement of the targets on the display screen,
moving from right to left. It is adjustable, to allow the user to show a longer
“history” on the display screen, if desired.

Scroll synchronization – the screen can be updated on the basis of time or
distance (when data from last ping appears on the display).

Signal threshold – can be set to ON to eliminate the appearance of unwanted
noise. The threshold level is automatic and the feature should be used with
caution, as it may eliminate small fish and small unidentified objects on the
screen.

TFT – Thin-Film Transistor (Active matrix) display.

Transducer – the transducer serves as the acoustic “loudspeaker” and “micro-

phone” to send and receive the signals through the water. They are most
often made from ceramic elements carefully built into a robust housing. The
ceramic elements change shape when a voltage is applied across them (when
the EQ33 transmits a signal), and they also generate a voltage when they
encounter sound waves (as when the EQ33 is receiving an echo).

Appendix A-4 EQ33 Glossary of terms

Transmit power – should normally be left on AUTOmatic.
The modes available are: AUTO, 600W, 100W and 10W.

TVG – Time Varying Gain – is a control that allows the EQ33 to make correc­tions for most of the losses and absorption that occurs as sound energy passes
through sea water. There are three settings to choose from, Normal, Special
and OFF.
The setting “Normal (20 log R) is for general fish finding at depths down to
50m (150’) and it will also give a uniform bottom echo presentation at shallow,
mid and deep water.
The setting “Special (40 log R) will adjust the TVG to show the same echo
strength for a given size fish at varying depths.
The OFF position is used for net sounders. In OFF position the TVG is inac­tive which means that the sounder operates with a fixed gain between each
transmitter pulse. Auto range is switched to manual.

White line – is a control which places a white/black line at the displayed sea
floor and blanks out 4 pixels just below the line. The purpose of this is to help
the user detect targets, such as fish, which are very close to the sea floor and
whose echoes tend to merge with those of the sea floor itself.

VRM – Variable Range Marker – this refers to a horizontal black line shown
on the display screen. The user can measure the range to targets shown on the
display screen by use of the VRM. The depth to the VRM can be seen in the
left side of the screen. This function is not available if VRM expansion is ON.

XTE – Cross-Track-Error (-Distance), measured magnitude of the position
error perpendicular to the intended track line.

EQ33 Echosounder Index

Agents end of manual
Alarms,

- depth 5-9,A-1

- DSC 6-3

- fish 5-9

- speed 7-1

- XTE 4-1,A-4
Alphanumeric names 7-11

CE Declaration end of manual
Configuration A-1
Contrast & light 2-6
Course over ground 4-2

- magnetic or true 3-1

Daylight display 7-10
Decca lanes 7-8

- list of decca chains 7-8
Depth in position display 3-1
Depth & temperature diagram 5-7
Display color 7-10
Dual Station DS33,

- installation 9-5

- operation 9-5

Echosounder features 1-4

- A-scope 5-6,A-1

- background color 7-11,A-1

- bottom expansion 5-4

- color threshold 5-11,A-1

- data field 5-3

- demo mode 5-9

- depth 5-9,A-1

- depth grid 5-11

- event marker 5-6,A-1

- expansion window 5-11,A-1

- frequency 5-9,A-1

- gain 5-11,A-1

- hotkey 5-2

- menu 5-2

- operation 5-1

- ping to ping filter 5-11,A-2

- presentation setup 5-11

- range 5-3,5-11,A-3

Echosounder features - continued,

- return to sounder presets 7-12

- sampling 5-9

- scroll speed 5-11,A-3

- scroll synchronization 5-11,A-3

- selecting displays 5-1,5-2

- setup 5-9

- signal threshold 5-11,A-3

- standard display 5-3

- time / distance scale 5-9

- transducer 5-9,A-3

- transmission line 5-3

- transmit power 5-11,A-4

- transmit pulse length 5-11,A-2

- TVG 5-11,A-4

- variable range marker 5-7,A-4

- VRM expansion 5-5,A-1

- white line 5-11,A-4
Effects of the vessel’s speed 8-4
Electrical connections 9-6

- fuse 9-7

- interface NMEA0183 9-7

- power supply 9-7

- transducer 9-7
Event marker 5-6,A-1

Factory settings 7-11

- master reset 7-12

- power off - reset 7-12

- return to all factory presets 7-12
Fundamentals 2-1
Glossary of terms A-1

How the echosounder works 8-2
How to get started 1-3
How to use this manual 1-1

Initial start-up 2-6
Installation,

- basic transducer and cable
information 9-7

- EQ33 9-3

- determining the position for
the transducer 9-11

Index EQ33 Echosounder

Installation - continued,

- DS33 9-5

- Operation of DS33 9-5

- location for display unit 9-4

- notes 9-1

- sources of noise 9-12

- transducers (optional) 9-8
Interface setup, alarm output 7-7
Interface setup, NMEA 7-4

- default sentences 7-5

- description of sentences 7-6

- return to NMEA presets 7-12
Interface software version 7-2
Introduction 1-1

Key functions 2-3

-dedicated function keys 1-3
Key symbols in manual 1-2

Language 2-6,7-2
Light & contrast 2-6
Local time and date 3-1
Log 3-1

- reset 3-2

- speed calibration 7-1,A-2

- speed sensor 7-1
Loran C 7-9

- list of Loran C chains 7-9

Maintenance 9-13
Master reset 7-12
Measurement units A-2

- setup 7-1
Menu bar 2-4
Menu layout 2-5
Miscellaneous menu 6-1

Navigation setup 4-1
Night display 7-10
NMEA interface 7-4

- return to NMEA presets 7-12

Page system 2-1

- preset pages 2-2

- rotation inverval 7-2
Palette setup 7-10
Parts of an echosounder 8-1
Pilot menu,

- highway display 4-1,4-2
Position

- display 3-1

- menu 3-1

- status 3-1
Power off 2-6
Power on 2-6

Repair and service 9-13

Safety summary 1-2
Serial number 7-2
Setup menu 7-1
Show test display 7-12
Software version 7-1
Specifications 9-15
Speed,

- over ground 3-1,4-2

- setup 7-1

- through water 3-1

Transducer beamwidth 8-3
Troubleshooting 9-14

Warr a nty end of manual
Wind display 6-1

- setup 6-2

- wind direction 6-1

- wind relative to the vessel 6-1

- wind speed, relative or true 6-1

XTE - cross-track-error 4-1,4-2,A-4

Simrad Støvring AS
Østre Allé 6
DK-9530 Støvring
Denmark

Odin Sletten

Product manager

Simrad Støvring AS

Declaration of Conformity

The EMC Directive, Article 10 (1)

Undersigned are herewith declaring, that

Product: SIMRAD EQ33

Echosounder

is in accordance with the protection requirements in

the EMC Directive 89/336/EØF of May 3rd, 1989

Employed harmonized standards:

EN 60945:1993 / Amd.1:1993

Støvring March 20, 2002

Warranty

SIMRAD warrants that every product shall be free of defects in material and workman­ship as specified below:

CATEGORY “A”:

•Autopilots •Radars •Instruments •Navigators •Radiotelephones •Plotters •Gyro
compasses incl. sensitive elements •Sonars •Echosounders •Trawl Instrumentation.

These products are warranted for a period of 24 months on parts and 12 months on
labor from date of purchase, except for category B items. Consumable parts such as
lamps, fuses, batteries, bearings, etc. are not covered by this warranty.

CATEGORY “B”:

•Antennas •Transducers •Trawl sensors •Monitors (CRT/LCD) •Radar magnetrons

•Disk drives.

These items are warranted for a period of 12 months on parts and labor from date of
purchase.

WARRANTY SERVICE is available through authorized service dealers or national
distributors worldwide. Products returned will, at the sole discretion of Simrad, either
be repaired or replaced free of charge within normal working hours. Freight charges,
insurance, duties or any other costs are the responsibility of the customer.
Maximum liability shall not, in any case, exceed the contract price of the products
claimed to be defective.

ON BOARD SERVICE can be arranged by authorized local service dealers or
national distributors upon request. Labor costs for the repair/replacement of the
defective modules/parts will be free of charge provided a valid warranty is confirmed.
Overtime, travel, lodging, per diem, insurance, duties or any other costs are the
responsibility of the customer. Additional expenses connected with replacement of
transducers such as dry docking, diving and precautionary measures are not covered by
this warranty.

VALIDITY: This warranty is effective only when warranty certificate or proof of
purchase and equipment serial number is presented. Furthermore, the installation and
operation has to be carried out in accordance with the product manual. Warranty
liability does not apply to any equipment which has become inoperative due to misuse,
accident, neglect, sea water damage or unauthorized repair. Simrad will not be liable for
any loss, incidental or consequential damages whether based upon warranty, contract or
negligence, or arising in connection with the sale, installation, use or repair of the
product. Consequential damages include, but are not limited to, any loss of profit,
property damage or personal injury.
The terms of warranty as described does not affect your statutory rights.

WARRANTY CARD

TO BE RETAINED BY THE OWNER

_____________________________________________ ___________________________________________

OWNER VESSEL

_____________________________________________ ___________________________________________

ADDRESS HOME PORT

___________________________________________

TYPE

__________________________________________________________

EQUIPMENT

________________________________________________________________________

____________________________________

____________________________________

______________________ __________________________

YES:________ NO:________

DATE OF PURCHASE DATE OF INSTALLATION INSTRUCTION FOR USE GIVEN

___________________________________________

AUTHORIZED INSTALLER/DEALER STAMP

Simrad Støvring AS

Østre Allé 6

DK-9530 Støvring

Denmark

SERIAL NO.

SIMRAD warrants that every product

shall be free of defects in material and

workmanship as specified overleaf:

tear out

WARRANTY CARD

To be mailed to the NATIONAL DISTRIBUTOR (see overleaf)

together with the installation report WITHIN 14 DAYS

from the date of installation.

_____________________________________________ ___________________________________________

OWNER VESSEL

_____________________________________________ ___________________________________________

ADDRESS HOME PORT

_____________________________________________ ___________________________________________

TYPE

__________________________________________________________

EQUIPMENT

________________________________________________________________________

____________________________________

____________________________________

________________________________________ ________________________________________

DATE OF PURCHASE DATE OF INSTALLATION

________________________________________ ________________________________________

(CUSTOMER’S SIGNATURE) (DEALER’SSIGNATURE)

Simrad Støvring AS

Østre Allé 6

DK-9530 Støvring

Denmark

SERIAL NO.

NATIONAL SIMRAD DISTRIBUTOR:

_________________________________________________________________________

_________________________________________________________________________

_________________________________________________________________________

_________________________________________________________________________

STAMP

HERE