Echo Sounder Simrad EQ33-2 Instruction Manual PDF

INSTRUCTION MANUAL
SIMRAD EQ33-2
Echosounder
183-2350-102 06134.20 English

About this manual
The technical data, information and illustrations contained in this publication

were to the best of our knowledge correct at the time of going to print.
We reserve the right to change specifications, equipment, installation and
maintenance instructions without notice as part of our policy of continuous
development and improvement. No part of this publication may be reproduced,
stored in a retrieval system or transmitted in any form, electronic or otherwise
without prior permission from Simrad AS. No liability can be accepted for
any inaccuracies or omissions in the publication, although every care has been
taken to make it as complete and accurate as possible.
This manual combines operating and installation information for the EQ33-2
Echosounder. We recommend that you familiarise yourself with the basic
instructions prior to installation or use.
EQ33-2 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 ............................................................... 1-4
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 on............................................................................... 2-7
2.7 Turn power off .............................................................................. 2-8
2.8 Simrad WR20 RemoteCommander (optional) ............................. 2-8
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 Variable range marker .................................................................. 5-3
5.4 Echo quick menu ..........................................................................5-4
5.5 Plot event mark on echo display ................................................... 5-6
5.6 Presentation setup......................................................................... 5-6
5.7 Depth & temperature diagram ..................................................... 5-9
Chapter 6 Engine monitoring

6. Engine menu ................................................................................. 6-1
6.1 Engine status ................................................................................ 6-2
Table of contents EQ33-2 Echosounder
6.2 Fuel and transmission ...................................................................6-4

6.3 Battery status ................................................................................ 6-5
6.4 Second set of engine monitoring displays .................................... 6-7
6.5 Demo mode .................................................................................. 6-8
Chapter 7 Miscellaneous menu

7. Miscellaneous menu ..................................................................... 7-1
7.1 Wind display ................................................................................. 7-1
7.2 Decca lanes ................................................................................... 7-3
7.3 Loran C ......................................................................................... 7-4
Chapter 8 Setup menu

8. Setup menu ................................................................................... 8-1
8.1 Echosounder setup........................................................................ 8-1
8.2 Pilot/Position setup ....................................................................... 8-3
8.3 Speed alarm, units & language ....................................................8-4
8.4 Interface setup .............................................................................. 8-7
8.4.1 Description of NMEA0183 sentences ........................................ 8-13
8.4.2 Description of NMEA2000 sentences ........................................8-14
8.5 Palette setup................................................................................ 8-15
8.6 Factory settings ...........................................................................8-17
Chapter 9 Principles of operation

9.1 Parts of an echosounder................................................................ 9-1
9.2 How the echosounder works......................................................... 9-2
9.3 Transducer beam width ................................................................ 9-3
9.4 Effects of the vessel’s speed .........................................................9-4
Chapter 10 Installation and service

10. Installation and service............................................................... 10-1
10.1 Installation notes ........................................................................ 10-1
10.2 Installation of EQ33-2 Echosounder .......................................... 10-3
10.3 Location for display unit ............................................................ 10-4
10.4 Electrical connections ................................................................ 10-5
10.4.1 Power supply connections .......................................................... 10-6
10.4.2 Fuse............................................................................................. 10-6
10.4.3 Transducer connection ............................................................... 10-6
10.4.4 Interface connection ................................................................... 10-6
10.5 Basic transducer and cable information ..................................... 10-8
10.5.1 Transducers (optional) ................................................................ 10-8
EQ33-2 Echosounder Table of contents
10.5.2 Determining the position for the transducer .............................10-11

10.6 Preventive maintenance.............................................................10-12
10.7 Repair and service .....................................................................10-12
10.8 Troubleshooting .........................................................................10-13
10.9 Specifications ............................................................................10-14
Appendix A Glossary of terms ...................................................................A-1
Index .............................................................................. end of manual
CE Declaration .......................................................................... end of manual
International warranty .............................................................. end of manual
List of Simrad distributors ........................................................ end of manual

Table of contents EQ33-2 Echosounder
EQ33-2 Introduction and safety summary Chapter 1-1
1.1 Introduction and system familiarization
Congratulations on your purchase of SIMRAD EQ33-2 Echosounder and

Fishfinder - a high performance echosounder in a unique slim-line design
with a bright 6” TFT color display.
The EQ33-2 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.
The SimNet data and control network provides high speed data transfer and
control between Simrad products that are integrated as a total navigation,
steering and communication system on board.
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.
3,3 Indicates that you should press the keys [3] and [3] to obtain what is
written in italic next to the key.
Chapter 1-2 EQ33-2 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 cut
yourself 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 10.9 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 EQ33-2.
Quality service personnel: The EQ33-2 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 prop-
erly, check sections 10.6 Preventive maintenance, 10.7 Repair and service, and
10.8 Troubleshooting. If your EQ33-2 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 - Glos-
sary of terms.
Default settings: All user implemented data in the EQ33-2 can be erased by
making a reset of the unit and thus return to factory default settings.
Cleaning: Do not use any kind of strong solvents e.g. spirit, alcohol, gasoline
or oils.
1.3 How to get started
When starting up for the very first time, the first time after loading
a new software or after a master reset: Make sure that all hardware
installation and electrical connections are completed in accordance
to the installation instructions.
PWR Press and hold the [PWR] key until you have a picture on the screen
The system will perform a software update and check for com-
munication activity. When finished, a new start-up window will be
presented on the screen:
Automatic input source setup

Interface has not been set up! ∆
To start automatic input

source setup, make sure that
all connected products are
turned ON, and press ENT.
Start ENT
After making sure that all connected products are turned ON:
ENT Press [ENT] to start automatic input source setup, - if a new product
is connected later on, refer to section 8.4 Interface setup.
New window: Automatic input source setup listing Data type, Group
and Source of connected units.
ENT Press [ENT] to continue

ENT Press the [ENT] key when the legend ‘System Ready’ appears on the
screen, - go to [MENU], [6], [3] if you wish to make adjustments to
the interface setup.
) Heading is only available if a compass was detected at start-up.

1.3.1 Dedicated function keys
STND Press [STND] from any other display will call up the standard echo
display.
B-LCK Press [B-LCK] from any other display will call up the bottom lock
display.
ZOOM Press [ZOOM] from any other display will call up the zoom display.
PAGE Press the [PAGE] key to toggle between four user-selectable pages.
Press for 2 seconds to start automatic rotation of all four pages. Press
any key to return to normal operation.
1.3.2 Echosounder features
Range - Select range by the numeric keys 1-9, or adjust with the +/- keys.
Key 0 will select Auto Range.
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.
Change frequency - Press [ENT], [1] to toggle between 50 and 200 kHz.
A-scope - Press [ENT], [2] to toggle A-scope on/off. Echoes are displayed in a
‘bar-graph’ format. The strength of the actual echo is indicated by both width
and color intensity.
Bottom expansion* - Press [B-LCK] to call up the bottom lock display.

Activate bottom expansion to expand the view of the bottom in the
echosounder display.
VRM expansion* - Press [ZOOM] to call up the zoom display. 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.
Shift display* - Press [ENT], [6] to call up the shift display when operating in
deep waters. Select the range for an expansion window. The expansion window
can automatically follow a changing bottom or be set manually by the +/- keys.
*Return to standard echosounder display by pressing [STND].

Transmit power off - Press [ENT], [STND] to stop transmission in order to

observe noise picked up by the transducer or to reduce power consumption.
Presentation setup - Press [ENT], [9] 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].
Echosounder setup - Press [MENU], [6], [STND] when you need to make
any general settings, selecting a transducer or selecting demo mode etc.
EQ33-2 Fundamentals & initial start-up Chapter 2-1
2.1 Fundamentals of the display and page system
The EQ33-2 Echosounder has a multi-function screen and data pres-

entation 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 EQ33-2 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 8.3. Press [PAGE] again to return to normal opera-
tion.
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.
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 disap-
pears again.
STND Shortcut to standard echo display from any other display.

B-LCK Shortcut to Bottom lock display from any other display.
ZOOM Shortcut to VRM expansion from any other display.
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. Calls up Echo

quick menu, 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).
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 displays (except in ZOOM mode).
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 high-
lighted, and if it’s an abbreviation of the menu, then the complete
menu title is written above the menu bar e.g.:
ECHOSOUNDER
1 2 3 4 5 6
POS PILOT ECHO MISC MISC 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.
2.4 Menu layout
1 2 3
POS PILOT ECHO
1 Position 1 Highway 1 Echo 50kHz
2 Echo 200kHz
3 Depth & temperature diagram
4 5 6
ENG MISC SETUP
1 Motor status 1 Wind STND Echosounder setup
2 Fuel and transmission 2 Decca lanes 1 Pilot/Position setup
3 Battery status 3 Loran C 2 Speed alarm, units & language
4 2nd Motor status 3 Interface setup
5 2nd Fuel and transmis. 4 Palette setup
6 2nd Battery status 5 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 dis-
appear 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.
2.5 Initial start-up
When starting up for the very first time, the first time after loading
a new software or after a master reset: Make sure that all hardware
installation and electrical connections are completed in accordance
to the installation instructions.
PWR Press and hold the [PWR] key until you have a picture on the screen
The system will perform a software update and check for com-
munication activity. When finished, a new start-up window will be
presented on the screen:
Automatic input source setup
Interface has not been set up! ∆
To start automatic input

source setup, make sure that
all connected products are
turned ON, and press ENT.
Start ENT
After making sure that all connected products are turned ON:
ENT Press [ENT] to start automatic input source setup, - if a new product
is connected later on, refer to section 8.4 Interface setup.
New window: Automatic input source setup listing Data type, Group
and Source of connected units.
ENT Press [ENT] to continue

ENT Press the [ENT] key when the legend ‘System Ready’ appears on the
screen, - go to [MENU], [6], [3] if you wish to make adjustments to
the interface setup.
Heading is only available if a compass was detected at start-up.

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 EQ33-2 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:

6,2 press [6], [2] 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 EQ33-2 has a demo program, which can be activated in the

Echosounder setup display, refer to section 8.1.
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 on
Starting up for the first time, or after loading a new software, or

after a master reset - see section 2.5.
When starting up at any other time:
PWR To turn on the EQ33-2, press and hold the [PWR] key until you have
a picture on the screen
ENT Press [ENT] when the system is ready

2.7 Turn power off

PWR Call up INFO window, and...
PWR Press and hold until screen turns black
The EQ33-2 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.
2.8 Simrad WR20 Remote Commander (optional)

The WR20 is the first remote control that can both display and con-
trol the electronics on board when connected to the SimNet system.
You can remotely command your NavStation with full MOB control
from anywhere within a range of 100 m. You will have seamless
control of pilot and navigation. You can make VHF calls from the
WR20 and much, much more.
The new WR20 - your perfect helmsman

• Small rugged waterproof handset
• Display size: 35x25mm (1.4”x1.0”)
• Weight: 150 g
• Bluetooth Class 1
• Rechargable Li-Ion battery
• Backlit keypad
• Keypad lock
• Handy neck strap
• Environment: -10 to +55°C (-14 to +131°F)
• Dimensions H:133mm (5.2”), W:55mm (2.2”),
D:32mm (1.3”)
EQ33-2 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 con-

nected to a navigator (GPS position sensor).
1,1 load Position display
Trip log 1 and 2.
Position in three deci-

mals in minutes.
Water speed/speed
over ground.
External POS Course, magnetic or

15-01-2006 true.
Position update - if, for some reason, there is no position update

from external sensor, the displayed position will start to flash and
once normal position update is resumed the flashing will stop.
Position display setup

The general Position setup e.g. Display position as: LAT/LON,
Decca or Loran C, etc. is placed in the SETUP menu (section 8.2).
ENT From position display, press [ENT] to load Position setup:
Chapter 3-2 EQ33-2 Position menu
Pos display setup:

Log 1: 00000.0nm
Log 2: 00000.0nm
Additional data: DEPTH
Go to the function you wish to change
CLR Reset log
0-9 Key in new values, or...
+/- Toggle between available values
ENT Confirm editing and return to the Position display
Log - reset log or insert alternative start figure by altering the value
in the “Log 1” and/or “Log 2” line. Press [CLR] to reset the figure,
and press the numeric keys 0-9 to alter the figure.
Additional data - can be set to DEPTH or COMPASS.

DEPTH will be shown from built-in echosounder.
COMPASS will show heading from connected sensor.
EQ33-2 Pilot menu Chapter 4-1
4. Pilot menu
2
PILOT
1 Highway
4.1 Highway display
To present any information in the EQ33-2 highway display will

require that a navigator is connected via SimNet or NMEA input
port (PWR) - refer to section 10.5 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

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 EQ33-2 Pilot menu
Highway display (with active navigation mode)
e c e
Nautical miles indication (0.10nm and 0.20nm) 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.
c Ship’s position and heading in relation to intended track.
d Ideal course line between two waypoints starting from ship’s

position when a navigation mode is activated on connected navi-
gator.
e XTE alarm lines - an alarm will sound if the ship touches the
lines (default distance: 0.10nm).
EQ33-2 Echosounder operation Chapter 5-1
5. Echosounder operation
The echosounder function of the EQ33-2 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 4800 feet (1500 meters) 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 elec-
trical signal produced by the transmitter is converted into an ultra-
sonic 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 electri-
cal 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 con-
tours of the bottom and fish between the bottom and surface are
displayed.
Selecting echosounder displays

The EQ33-2 provides various types of echosounder displays: stand-
ard echogram, A-scope, bottom expansion (zoom), VRM expansion
and shift mode. 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 EQ33-2 Echosounder operation
5.1 Echosounder menu
3
ECHO
1 Echo 50kHz - see section 5.2
2 Echo 200kHz - see section 5.2
3 Depth & temperature diagram - see section 5.7
5.2 Echosounder display
Low and high frequency echosounder display can be set up sepa-

rately. 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:
3,2 load the Echo display for 200kHz, or...
STND Hotkey to Echo display i.e. jumps to page with Echo 50kHz or Echo
200kHz display; if none: inserts the last active Echo display in active
page.
Transmission
line
Depth range
is adjustable
with +/- keys
or the Quick-
range keys
1-9.
Press key 0
to return to
Auto range.
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.

The data field is preset to show: Actual depth *DK, transmit power
A100W (set to AUTO), transmission pulse length A- SHORT (set
to AUTO), see section 5.6.
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,6,2).
*) Actual depth i.e. Depth below Keel/Surface/Transducer - settings

can be changed in Echosounder menu (MENU,6,STND).
Press cursor left/right to adjust gain
ENT Press [ENT], [9] to load the Presentation setup related to active
9 echo display 50kHz or 200kHz - (see section 5.6)
Use the cursor to go to the function you wish to change the value for
ENT Confirm changes
5.3 Variable range marker
VRM – Variable Range Marker – 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.
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

5.4 Echo quick menu

A number of echo features can easily be accessed from the Echo
quick menu.

ENT Call up the Echo quick menu with access to the following features:
Echo quick menu

1 Change frequency
2 Hide A-scope
3 Standard Echo display
4 Bottom lock display
5 Zoom display
6 Shift display
9 Presentation setup
STND Transmit power off
MENU Exit
1 Change frequency will toggle between 50 or 200 kHz displays

(Airmar transducers) 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 condi-
tions and going the deepest.
2 Hide/Activate A-scope The ampli-

tude scope at the right side of the echo
display 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 of the bottom.
3 Standard Echo display Return to the basic presentation mode

(standard display) from echo display with an added feature e.g.
bottom expansion, VRM expansion, etc.
4 Bottom lock display The advanced

bottom lock and expansion feature
ensures a reliable depth readout and
provides a compressed standard dis-
play in the upper half of the display.
The bottom area can be magnified for
better separation of echoes. The actual
range of the expansion window can be
adjusted in the Presentation Setup.
5 Zoom display This feature will provide

an expanded view of the area near the
Variable Range Marker (see section 5.3)
which will give a better separation of
echoes. The actual range of the expan-
sion window can be adjusted in the
Presentation Setup.
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, sec-
tion 8.3).
6 Shift display This feature can be

applied when operating in deep waters.
Select the range for an expansion
window. The expansion window can
automatically follow a changing bottom
or be set manually by the +/- keys.
9 Presentation setup Load the setup related to active echo display, see
section 5.6.
STND Transmit power off Stop transmission in order to observe noise
picked up by the transducer.
MENU Abandon the Echo quick menu without making any changes
5.5 Plot event mark on echo display
Inserts a vertical mark at current ping and sends out WPL via
NMEA to connected chartplotter.
5.6 Presentation setup
The general Echosounder setup e.g. Selecting transducer, Alarm set-

tings, Demo mode etc. is placed in the SETUP menu (section 8.1).
The echo setup in this chapter are the most common settings for
adjusting the presentation of the high or low frequency echo picture.
ENT Press [ENT], [9] to load the Presentation setup related to active
9 echo display 50kHz or 200kHz
Setup 200kHz:
Range start: 000 m
Range: AUTO 25 m
Gain: 050%
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
Use the cursor to go to the function you wish to change the value for
0-9 Key in new figures, or...
ENT Confirm changes, or...
MENU Abandon changes and exit display

Range start – allows the user to set the displayed depth range to
begin at some point below the surface. For example, a 100 meter dis-
played 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.
Range – refers to the distance shown from the top to the bottom of
the display screen. Selecting Auto range will cause the EQ33-2 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.
Gain – is another way of saying “sensitivity”, or possibly “volume”.

Increasing the gain setting of the EQ33-2 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.
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.
Expansion window (zoom level) – can be selected in eight steps,

ranging from 1 to 50 meters, or converted to feet or fathoms (refer to
Setup for units, section 8.3). 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).
TVG – Time Varying Gain – is a control that allows the EQ33-2 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 pres-
entation 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.
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 recording.
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.
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 thresh-
old 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.
Depth grid - enables a more precise reading of depth and target rela-
tions across the screen.
Transmit pulse length – can be set OFF to observe 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:
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.
Transmit power – should normally be left on AUTOmatic.

The modes available are: AUTO, 600W, 100W, 10W and OFF.
Scroll synchronization – the screen can be updated on the basis of

time or distance (when data from last ping appears on the display).
Scroll speed – is the ping rate and movement of the presentation of

echoes on the screen, moving from right to left. It is adjustable (Low,
Medium, High, Max, Freeze), to allow the user to show a longer
“history” on the display screen, if desired.
5.7 Depth & temperature diagram

3,3 activate Depth & temperature diagram
Present
water tem-
perature and
depth.
Depth over
time or dis-
tance.
Temperature
over time or
distance.
ENT Call Setup for Depth
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.
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 0.5nm to 90nm
in order to adjust to the speed of the ship, and you can freeze the
reading.
EQ33-2 Engine monitoring Chapter 6-1
6. Engine menu
4
ENG
1 Engine status - see section 6.1
2 Fuel & transmussion - see section 6.2
3 Battery status - see section 6.3
4 2nd Engine status - see section 6.4
5 2nd Fuel & transmussion - see section 6.4
6 2nd Battery status - see section 6.4
This graphical engine monitoring system is available for engines

outputting data via NMEA2000® or an appropriate interface device
supporting NMEA2000®. Depending on the engine system and
interface, some data may not be transmitted on the databus. If not
readily available, please enquire at your local Simrad dealer.
The EQ33-2 is capable of receiving and presenting various engine

data. The menu points 4, 5 and 6 are a second set of displays, which
only will be visible if the system detected more than two engines on
board.
For dual engines, the system provides ‘dual bar analog instruments’
to give a precise overview of the rpm synchronization and to make
direct comparison of data between the two engines.
The engine monitoring system provides analog graphical gauges and

digital (numerical readings) data for up to four engines - see display
examples further on in this chapter.
General settings
SimNet will auto detect the engines at start-up and will automati-
cally set up the parameters in default mode. Before using the en-
gine monitor system, you need to edit the setup and prepare for the
read-out. The top line identifies the engine/battery, the default is
ENGINE 1 to 4 or BATTERY 1 to 4. Insert the correct name for the
engine/battery in the Interface setup:
6,3 load the Interface setup
Chapter 6-2 EQ33-2 Engine monitoring
GAIN+ Use the [GAIN+] key to go to the Engine tab
Go to the name you wish to change,

- refer to Alphanumeric names in section 8.5.
ENT Confirm entry and exit
To change the measuring units, refer to ‘Setup for units’ in section

8.3.
6.1 Engine status

4,1 load the Engine status display
Forward Reverse (N = Neutral)

The numbers at the bottom represents Engine 1 to the left and
Engine 2 to the right in each column.
The Engine status display will provide data from 1 or 2 engines.

If there are more than 2 engines on board (and connected to the
system), a second Engine status display is available by pressing:
[MENU], [4], [4].
The default ranges in the Engine status display can be viewed and
changed as described below, except for Tilt, which is read-only
information of the exact tilt of the outboard engine in percentage, or

of the Stern drive. No range or limitation can be entered.
To change the default ranges:

ENT Load Engine status setup
Engine status setup

Left engine source: ENGINE 1 ∆
Right engine source: ENGINE 2
Engine RPM range: 5000RPM

Engine RPM limit: 04200RPM
Oil pressure range: 100Psi
Turbo pressure range: 050Psi
Engine coolant temp. range: 120°C
MENU Exit Accept ENT
Left engine source - use +/- to toggle between connected engines.
Right engine source - use +/- to toggle between connected engines.
Engine RPM range, default is 5000 RPM. Selectable in steps from

2500 to 12500 by means of the +/- keys.
Engine RPM limit, default is 4200 RPM. To control the limit manu-
ally, you can insert a new limit by means of the numerical keys.
When the limit is exceeded, the green fill color will turn red.
Oil pressure range, default is 100 Psi. Use numerical keys to enter
new range. Can be shown in Psi (10-125 Psi) or Pascal (69-862 kPa).
Turbo pressure range, default is 50 Psi. Use numerical keys to enter

Engine coolant temperature range, default is 120 degrees Celcius.

Use numerical keys to enter new range. Can be shown in Celcius
(40°C to 200°C) or Fahrenheit (104°F to 392°F).
ENT Confirm entry or exit with [MENU] without making any changes
6.2 Fuel and transmission
The level of fuel is indicated in a percentage of the maximum value,

depending on the shape of the fuel tank and the level sensor. This
level can either be ‘level above tank bottom’ or ‘remaining volume in
tank’. The fill color will be red when reaching < 10 %.
4,2 load the Fuel & transmission display
In the top part of this display you have read-outs for Engine 1 to the
left and Engine 2 to the right and a total for both in the middle. The
second line in the middle i.e. ‘17.0 L/nm’ - liter per nautical mile,
is calculated by the Echosounder. The read-out can be presented in
L/nm, L/km, L/mi, G/nm, G/km, G/mi. The unit can be selected in
[MENU], [6], [2], see section 8.3. The numbers at the bottom repre-
sents Engine 1 to the left and Engine 2 to the right in each column.

ENT Load Fuel and transmission setup
Transmission oil temperature range, default is 120 degrees

Celcius. Use numerical keys to enter new range. Can be shown in
Celcius (50°C to 300°C) or Fahrenheit (122°F to 572°F).
Transmission oil pressure range, default is 100 Psi. Use numerical

keys to enter new range. Can be shown in Psi (10-500 Psi) or Pascal
(69-3447 kPa).
Fuel pressure range, default is 100 Psi. Use numerical keys to enter
Fuel rate range, default is 0030 liter per hour. Use numerical keys
to enter new range. Can be shown in liter per hour (1-1000 L/h) or
gallon per hour (1-264 G/h).
Fuel and transmission setup

Transm. oil temp. range: 120°C

Transm. oil pressure range: 0100Psi
Fuel pressure range: 100Psi
Fuel rate range: 0030L/h
6.3 Battery status

4,3 load the Battery status display
- see display example next page.

ENT Load Battery status setup
Battery status setup

Left battery source: BATTERY 1

Right battery source: BATTERY 1
Left alternator volt.range:10-15 Volt

Right alternat. volt.range:10-15 Volt
Left battery voltage range:10-15 Volt
Left battery current range: 60 Amp
Right battery volt.range: 10-15 Volt
Right batt. current range: 60 Amp ∆
Left battery source - use +/- to toggle between connected batteries.
Right battery source - use +/- to toggle between connected batteries.

Left alternator voltage range, default is 10-15 Volt. Selectable in

steps i.e. 10-15, 20-30 or 26-41 Volt (use +/- keys).
Right alternator voltage range, default is 10-15 Volt. Selectable in

Left battery voltage range, default is 10-15 Volt. Selectable in steps

i.e. 10-15, 20-30 or 26-41 Volt (use +/- keys).
Left battery current range, default is 60 Amp. Selectable in steps

from 10 to 1000 Amp (use +/- keys).
Right battery voltage range, default is 10-15 Volt. Selectable in

Right battery current range, default is 60 Amp. Selectable in steps

from 10 to 1000 Amp (use +/- keys).
6.4 Second set of engine monitoring displays
The menu points 4, 5 and 6 are a second set of displays, which only
will be visible if the system detected more than two engines on
board.
4,4 load the 2nd Engine status display
- refer to section 6.1.
4,5 load the 2nd Fuel & transmission display
4,6 load the 2nd Battery status display
6.5 Demo mode
For the purpose of demonstration, the engine function has a demo

mode, which can present simulated read-outs. To run a demo of the
engine monitoring system:
6,3 load the Interface setup
GAIN+ Use the [GAIN+] key to go to the Engine tab
Go to the bottom line and toggle the demo mode on and off with +/-
ENT Confirm entry and exit
Remember to turn off the demo mode again! The monitoring system
will not present any actual readings when the demo mode is running.
EQ33-2 Miscellaneous menu Chapter 7-1
7. Miscellaneous menu
5
MISC
1 Wind - see section 7.1
2 Decca lanes - see section 7.2
3 Loran C - see section 7.3
7.1 Wind display
The EQ33-2 is ready to present wind data from instruments con-

nected via NMEA0183 or SimNet.
Wind data - the ‘wind instrument’ can provide both wind direction
and wind speed, and the readings can be shown in apparent or true
(when the data is supplied from connected wind instrument).
5,1 load the ‘Wind instrument’ display
True wind
direction.
Wind rela-
tive to vessel.
Wind speed,
apparent or
true.
Chapter 7-2 EQ33-2 Miscellaneous menu
ENT Load Setup for Wind display
Setup for Wind:

Damping level: MEDIUM
Apparent wind scale: NORMAL
Wind angle offset: 000°
Show wind speed as: APPARENT
Wind speed unit: METERS/SECOND
+/- 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.
Apparent 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 APPARENT.
Wind speed unit - can be either METERS/SECOND, KNOTS,

KILOMETERS/HOUR or MILES/HOUR.
EQ33-2 Miscellaneous menu Chapter 7-3
7.2 Decca lanes

nected to a navigator.

5,2 load decca chain display
ENT Open for change
+/- Leaf through the available chains - see listing below.
ENT Confirm entry
To change the position readouts to decca mode, see section 8.2 under
Position setup, where ‘Display position as’ can be toggled to ‘Decca’.
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
Chapter 7-4 EQ33-2 Miscellaneous menu
7.3 Loran C

nected to a navigator.

5,3 load Loran C chain display
ENT Open for change
+/- 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
To change the position readouts to Loran C mode, see section 8.2

under Position setup, where ‘Display position as’ can be toggled to
‘Loran C’.
List of Loran C chains:
Central Pacific 4990 Commando Lion 5970

Gulf of Alaska 7960 North West Pacific 9970
Southeast U.S. 7980 Norwegian Sea 7970
Great Lakes 8970 Mediterranean Sea 7990
Northeast U.S. 9960 Icelandic 9980
Canadian West Coast 5990 Saudi Arabia South 7170
Canadian East Coast 5930 Saudi Arabia North 8990
Labrador Sea 7930 Eastern U.S.S.R. 7950
West Coast U.S. 9940 Western U.S.S.R. 8000
North Pacific 9990
EQ33-2 SETUP menu Chapter 8-1
8. Setup menu
6
SETUP
STND Echosounder setup - see section 8.1
1 Pilot/Position setup - see section 8.2
2 Speed alarm, units & language - see section 8.3
3 Interface setup - see section 8.4
4 Palette setup - see section 8.5
5 Factory settings - see section 8.6
8.1 Echosounder setup
The Echosounder setup display mainly consist of general settings,

but also applies to a specific frequency where stated. The EQ33-2
features semi dual transceiver transmitting at 50 and 200 kHz.
6 open the SETUP menu, and...
STND load Echosounder setup display
Echosounder setup:
Transducer: SINGLE 200kHz 00.0 m
Keel depth below surface: 00.0 m
Display: DEPTH BELOW KEEL
Data on NMEA-out from: 200kHz
Alarm for fish: Strength: 065% OFF
Depth DS fish: min:0005 m max:0030 m
Depth DK alarm min.: 0005.0 m OFF
Depth DK alarm max.: 0030.0 m OFF
Water profile: SALT
Velocity of sound in water: 1470m/s
Time/distance scale: ON
PAGE More (1/2) Scroll

PAGE Toggle between page 1 and 2

Chapter 8-2 EQ33-2 SETUP menu
Restart of AUTO pulse/power: 20 sec.

Echo sampling: BOTTOM
Demo mode: OFF

Use the cursor key to move cursor around in the display
+/- Select new values by means of the +/- keys
MENU Abandon changes and exit display
Transducer - select transmitter frequency. Insert the depth (posi-

tion) of the transducer below surface.
Display can show: DEPTH BELOW KEEL / SURFACE / TRANS-

DUCER.
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. 000 (weak echo) to max.
099% (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 set-
ting will reflect on the:
Velocity of sound in water: SALT = 1470 meters per second and

FRESH = 1430 meters per second as standard. The standard set-
tings 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 synchro-
nisation”, section 5.6.
Restart of AUTO pulse/power - will automatically restart the

echosounder if bottom detection has been lost for the chosen time
interval i.e. 10, 20 or 40 seconds. The AUTO pulse and power will
restart from 10W and SHORT pulse.
Echo sampling - is preset to BOTTOM, which enables auto range

and a view all the way to the bottom. For vessels moving at high
speed with the risc of losing bottom detection, RANGE or a max.
depth setting (50 to 2000m) is recommended. The unit will not wait
for a bottom echo, but transmit a new pulse as soon as the selected
range has been reached. 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.
8.2 Pilot / Position setup

6,1 load Pilot/Position setup display
Pilot/Pos setup:
Display position as: LAT/LON
Display speed as: STW
Course and bearing as: MAGNETIC
Time: 13:43:56 Date: 15-01-2006


ENT Confirm editing
Display position as - the position can be shown in latitude/

longitude, Loran C or decca coordinates (after selecting chain from
the Miscellaneous menu). Toggle with +/-.
Display speed as - SOG Speed Over Ground or STW Speed

Through Water. Toggle with +/-.
To receive STW information will require connection of external
instrument via the SimNet system or the NMEA port.
Course and bearing as - readings of course and bearing can be

made in either MAGNETIC or TRUE. Toggle with +/-.
Time - correct actual time and date by means of the numeric keys.
8.3 Speed alarm, units & language

6,2 load Speed alarm, units & language display
Setup for speed:

Speed alarm maximum (SOG):000.0kn OFF
Speed alarm minimum (SOG):000.0kn OFF
Setup for units:

Depth/altitude in: METERS
Distance in: NAUTICAL MILES
Speed in: KNOTS
Temperature in: DEGREE CELCIUS
Presssure in: PSI
Volume in: LITER
Software version: EQ33 4.00
PAGE Toggle between page 1 and 2

Serial number: 0x0001143e

Interface software version: 1.19
PAGE rotation interval: 05 sec.
Display text in: English GB

Scroll up/down to go to the function you wish to change
MENU exit function without making any changes
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.
Depth / altitude in - can be set to meters (m), feet (ft), fathoms (fm)
or Italian unit: passi braccio (Pb).
Distance in - can be calculated in nautical miles (nm), kilometers

(km) or statute 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.
Pressure in - can be shown in Psi or Pascal (kPa).
Volume in - can be shown in liter or gallon.

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 EQ33-2 is supplied with the follow-

ing national display languages: Danish (DK), English* (GB) or (US),
French (F), German (D), Italian (I), Dutch (NL), Spanish (E), Swed-
ish (S), and Portuguese (P).
*) The difference from GB English to US English is: Celcius is

changed to Fahrenheit, meters is changed to feet, and the date pres-
entation is changed from dd.mm.yy to mm.dd.yy.
8.4 Interface setup
EQ33-2 has a connector for SimNet control or NMEA2000 plus one

NMEA in/out port.
Plug-and-play: SimNet offers easy and uncomplicated interfacing

with a unique cable and plug solution and automatic system setup.
SimNet is the optimum solution for integrating SimNet products and
other products with NMEA 2000.
Group selection or stand-alone: Main products, e.g. MultiRadar,

Chartplotter and Autopilot will automatically select the optimum
sources for position, heading, depth, speed etc. for all other SimNet
products connected. This means that if two Chartplotters are con-
nected, they will both use position data from the same GPS and
heading from the same compass. If you wish to use the built-in GPS,
also on the Chartplotter, which automatically was set to operate
with an external position, you can change the Group selection from
SIMRAD to STAND-ALONE.
Multi source: If a main product recognizes e.g. two heading devices

it will automatically select a gyro compass before a fluxgate com-
pass, and DGPS before GPS.
NMEA 0183 input: If there is no data available from the SimNet

bus for e.g. heading, position or depth, the system will automatically
look for data via the NMEA 0183 port.
The next pages show examples of interface settings, which are

divided into the following groups:
Nodes - Position - Navigation - Water - Compass - Wind - Engine
- Alarm - SimNet diagnostic - SimNet input - SimNet output -
NMEA0183 input - NMEA0183 output - Identification.

6,3 load interface setup - see display example next page.
Searching interface channels for valid sources and data. Please wait
till the first page appears on the screen which will show the nodes
(products) operating on the SimNet bus. See below example:
◄ GAIN- Nodes Position Navigation GAIN+ ►

Internal
Additional + 254: Simrad EQ33 ,Sn:00C192 ∆ serial
data + 2: Simrad GN33-2 ,Sn:0070B0 number
+ 3: Airmar EQS ,Sn:000000
No addi- + 4: Simrad RC35 ,Sn:000035
tional - : NMEA-PORT ∆
data
Automatically assigned Product model numbers (top line is own unit); -1, -2, -3
network address etc. indicates multi sources. NMEA-PORT indicates
incoming data via the NMEA port.
Move the cursor up/down to select one of the listed products
+ Press the [+] key to access additional data
Example:
• EQ33 ECHO SOUNDER
• SimNet number=00C192, Address:254
• Device: class = 60, function = 130
• Instance: system = 0, device = 0
• SimNet:Compatible=YES,Ver= 1.000 E
• Ver.: NMEA2000 = 1.004, SW = 02.04
• Product code=3A97,Unique no=11C192
The name ECHO SOUNDER can be user defined - see the Identifica-
tion interface (last tab).
- Press the [-] key to hide additional data
General information: Go to the next interface by pressing [GAIN+]

and step back to the previous interface by pressing [GAIN-].
Use the cursor key to move around in the display and toggle between
available settings and sentences with the +/- keys.
ENT Confirm editing, or...

Group selection can be set to:

SIMRAD - auto-selected SimNet units from the Simrad group.
STAND-ALONE - manually selected data source and third party units.
Source: - depending on which products (sources) are connected, the

legend will indicate: ‘none available’, ‘one available’, ‘multiple avail-
able’ or ‘owned, data type locked’.
GAIN+ Go to Position interface - step back with [GAIN-]

Input: ∆
Group selection: SIMRAD
Source (one available):
Simrad GN33-2 ,Sn:0070B0
NMEA0183 output:
Waypoint location: WPL ON
∆
Waypoint location - see section 5.5.
NMEA0183 output - see also section 8.4.1 Description of sentences.
GAIN+ Go to Navigation interface - step back with [GAIN-]

Input: ∆
Simrad GN33-2 ,Sn:0070B0
∆
GAIN+ Go to Water interface - step back with [GAIN-]

◄ GAIN-
Navigation Water Compass GAIN+ ►
Water depth input: INTERNAL ONLY ∆
Source (multiple available):
Simrad EQ33 ,Sn:00C192
Water temperature input:
Airmar EQS ,Sn:000000
Water temperature offset: +0.0°C
Water speed input:

Airmar EQS ,Sn:000000
LOG speed cal.: 019000 PULSES/nm
NMEA0183 output:
Water temperature: MTW ON
Water speed and heading: VHW ON
Depth: DPT ON
Depth below keel: DBK OFF
Depth below surface: DBS OFF
Depth below transducer: DBT OFF ∆
MENU Exit Accepter ENT
Input: INTERNAL ONLY - indicates that no external source can be

selected for depth.
Water temperature offset - a figure can be keyed in to compensate

for differencies in temperature sensor.
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 trans-
ducers 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)
NMEA0183 output - see also section 8.4.1 Description of sentences.
GAIN+ Go to Compass interface - step back with [GAIN-]

◄ GAIN- Navigation Water Compass GAIN+ ►
Input: ∆
Source (none available):
NONE
∆
GAIN+ Go to Wind interface - step back with [GAIN-]

◄ GAIN- Water Compass Wind Engine GAIN+ ►
Apparent wind input: ∆
NONE
Calculated true wind input:
NONE
GAIN+ Go to Engine interface - step back with [GAIN-]
◄ GAIN- Compass Wind Engine Ala GAIN+ ►

Engine 1: PORT ∆
Teleflex PIN
,Sn:06952E-0
Engine 2: STARBORD
Teleflex PIN-1 ,Sn:060000-1
Battery 1: Battery 1
Teleflex PIN ,Sn:06952E-0
Battery 2: Battery 2
Teleflex PIN-1 ,Sn:060000-1
Engine/battery demo mode: OFF ∆

PIN - Propulsion system (Engine interface).
To run a demo of the engine/battery monitoring system, use the cur-

sor to go to OFF and use the +/- key to toggle to ON. When ready to
connect the real system, be sure to turn off the demo mode again.
NMEA2000 output® - see section 8.4.2 Description of sentences.
GAIN+ Go to Alarm interface - step back with [GAIN-]
◄ GAIN- Compass Wind Engine Alarm GAIN+ ►
Alarm: ∆
Output (REMOTE pin 2,3): ON
Alarm stand-by level: LOW
∆
Stand-by level can either be: LOW = 0 volt or HIGH = 5 volt.

GAIN+ Go to SimNet diagnostic interface - step back with [GAIN-]
◄ GAIN-
Alarm SimNet diagnostic S GAIN+ ►
SimNet error frame counter: 0 ∆
Receive que full: 0
Transmit que full: 0
Atmel receive not ready: 0
∆
SimNet error frame counter - if the figure is not 0 it could be due

to a number of things and not necessarily that there is a system error.
However, if the counter is active and the number is rapidly increas-
ing, then the system has detected a fault.
For instance, if the SimNet cable is pulled, the counter will be acti-
vated and once the cable is back in place, the counter will stop, but
will stay at the figure it has reached. So therefore, a figure other than
0 does not necessarily mean that something is wrong, only if the
figure continues to increase.
Prior to call for technical assistance:

1. Check connected cabling.
2. Check supply voltage to be between 10.8-15 VDC to the SimNet

system.
3. Systematically disconnect one unit at a time to see which one is
causing the problem. Start at the opposite end of the 12V power
supply.
The three last lines in the SimNet diagnostic interface are for techni-
cians only.
GAIN+ Go to the next interface - step back with [GAIN-]
The interfaces: SimNet input, SimNet output, NMEA0183 input and

NMEA0183 output are for technicians only.
GAIN+ Go to the next and last interface: Identification
- step back with [GAIN-]
◄ GAIN- 83 output Identification GAIN+ ►
Unit description: ECHO SOUNDER ∆
Device instance 000
System instance 000
∆
Unit description - can be customized to read e.g. BACK-UP UNIT.

Maximum number of characters is 16.
The identification name can be seen in the Nodes interface - refer to

the beginning of this section.
ENT Confirm editing, or...
8.4.1 Description of sentences
Description of NMEA0183 version 3.0 output sentences

WPL Waypoint location
MTW Water temperature
VHW Water speed and heading.
DPT Depth, including offset.

DBK Depth below keel.
DBS Depth below surface.
DBT Depth below transducer.
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.
8.4.2 Description of NMEA2000 ® sentences
PGN name PGN Data content Indication on display

Battery status 127508 Battery instance, Free name tag related to
instance no. Default is:
Battery 1, 2, 3, 4
Battery potential, Bat Volt
Battery current, Bat Amp
Battery case temperature *.*°C or °F
Engine 127488 Engine instance, Free name tag related to
parameters, instance no. Default is:
Rapid update Engine 1, 2, 3, 4
Engine speed, RPM
Engine boost pressure Turbo Psi or kPa
(Turbo)
Engine pa- 127489 Engine instance, See above.
rameters, Engine oil pressure, Oil Psi or kPa
Dynamic Engine coolant temp. Coolnt °C or °F
Alternator potential Engine name tag Volt
Fuel rate Fuel G/h or L/h and per nm*
Fuel pressure Fuel Psi or kPa
Engine tilt/trim Tilt %
PGN name PGN Data content Indication on display

Transmission 127493 Transmission instance Follows name tag and in-
Parameters, stance of engine.
Dynamic Transmission gear (F,N,R) Forward, Reverse or Neutral
Transmission oil pressure Transm Psi or kPa
Transmission oil temp. Transm °C or °F
Fluid Level 127505 Fluid instance Follows name tag and in-
stance of engine.
Fluid type (Fuel) Fuel
Fluid level (0-100%) Level %
*) Calculated on the basis of GPS SOG and ‘gallons per hour’ input.
8.5 Palette setup
Quick change of preset color palettes via the [PWR] key.

6,4 load the Palette setup
Palette 1:Bright (sunshine), 2:Day (normal daylight), 3:Dusk and 4:

Night are preset. Preset palettes are not adjustable. Non-preset pal-
ettes can be customized to suit individual needs and wishes.
To make your own special palette setup in e.g. palette 5, then:
5 Select Palette setup: 5
Page 1 of 2.
*)
*)
*) Not available in this model!

Use cursor to scroll up/down in display
Page 2 of 2.
A-Z Key in a name for the new palette setup - max. 29 characters,
-refer to “Alphanumeric names” below.
+/- Toggle between available color settings
ENT Confirm new setup
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 spe-
cial 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.
8.6 Factory settings
DELETE MEMORY: It will be possible to erase all sounder set-

tings or SimNet/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 10.8.

6,5 activate the display for Factory settings
FACTORY PRESETS:
1 Return to SimNet/NMEA presets
2 Return to SOUNDER presets
CLR Return to all factory presets
0 Show test display

MENU Exit
To activate any of the 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
Activating ‘Return to all factory presets’ will erase all user-made

settings and restore the basic default settings from the factory. The
unit will restart with ‘Automatic input source setup’ as described in
section 2.5 Initial start-up.
Activating ‘Return to SimNet/NMEA presets’ will give two choices:
Press [1] Product SimNet reset

Reset this unit only
Will bring this unit only back to factory defaults of the Interface
setup. The unit will restart with ‘Automatic input source setup’ as
described in section 2.5 Initial start-up.
Press [2] Global SimNet reset

Reset entire Simrad group
on the network
Will bring this unit together with all connected units (which are not
turned off at the moment) back to factory defaults of the Interface
setup. The units will restart with ‘Automatic input source setup’ as
described in section 2.5 Initial start-up.
Show test display:

Information in this display is for technicians only.
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 discon-
necting 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.
EQ33-2 Principles of operation Chapter 9-1
9.1 Parts of an echosounder
An echosounder is composed of a display screen, processor, and transmitter/

receiver unit which in the case of the EQ33-2 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 sophisti-
cated 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 trans-
mitter’s job is done and the receiver takes over (see fig.1 in section 9.2).
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 9.2). The receiver is designed to reject other
signals as much as possible and provide enough amplification to see even rela-
tively 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 hous-

ing made from reinforced plastic, bronze or stainless steel. The transducer is
attached horizontally to the bottom of the hull. It is essential that the trans-
ducer be mounted properly, as echo transmissions are radiated at right angles
from the transducer face. Shielded cables connect the transducer with the
echosounder.
Chapter 9-2 EQ33-2 Principles of operation
9.2 How the echosounder works
When the EQ33-2 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 vibra-

tions (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 EQ33-2 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.
EQ33-2 Principles of operation Chapter 9-3
9.3 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 receiv-
ing. 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 9-4 EQ33-2 Principles of operation
9.4 Effects of the vessel’s speed
The presentation of fish on the EQ33-2 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.
EQ33-2 Installation and service Chapter 10-1
10. Installation and service
10.1 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 10-2 EQ33-2 Installation and service
Other important settings (continued):

10.2 Installation of EQ33-2 Echosounder

The unit can be flat or bracket mounted - overhead, bulkhead or console.
144 mm (5.8”)
168 mm (6.6”)
37.5 (1.5”)
235 mm (9.3”)
252 mm (10”)
100.5 mm (4”)
Overhead mounting
45 mm (1.8”)
Console mounting Bulkhead mounting

(max. tilt 45°) (approx. 10° tilt, allowing
space for connectors and cables)
Flush mounting
Removable corner
for flush mounting
Refer to included template for instructions on flush mounting.
(measurements in mm)
144
139.5
138
119.5
24.5
4.5
4.5
6
6
10.5
241.5
246
247.5
252
10.3 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 display.
- there is limited exposure to direct sunlight to avoid overheating - see envi-
ronment temperature limits in 10.9 Specifications.
- there is good ventilation and minimum vibration.
- the minimum distance to a magnetic compass is 650mm (25.6”).
- provide sufficient space behind the unit to allow for proper cable connections
to the rear panel connectors.
10.4 Electrical connections
Ship’s
Ground
ECHO Transducer
Fuse T6.3A slow 1: Speed Log
2: Speed Log 5V+
3: Depth +
1 & 2: Red Supply + 4: Depth Shield
10 - 32 Volts 5: Depth -
SimNet / 6: GND T/S Log
3 & 4: Black Supply - NMEA 2000 7: Temperature
NMEA In REMOTE
NC Rx-Shield 1: Pink Ext. Switch
9: Yellow Data in (Rx) 8: Pink/black dot Ext. Switch (GND)
6: Green Return 2: Purple Alarm out 5V/50mA
3: Purple/black dot Alarm out (GND)
NMEA Out 4: Orange/white dot Dual station 1 (to 1)
5: Braid Tx-Shield 5: Orange/yellow dot Dual station 2 (to 2)
7: White Data out (Tx) 6: Blue/white dot PC Link TxD
8: Brown Return 7: Blue/yellow dot PC Link RxD
10.4.1 Power supply connections

The internal voltage regulator will allow the EQ33-2 to operate normally
within the power supply voltage range from 10 to 32 V DC. The EQ33-2 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.
10.4.2 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 EQ33-2 is switched on or it will not protect the equipment as
intended – see fuse rating in section 10.9 Specifications.
10.4.3 Transducer connection

Most transducers are supplied with a 10 meter cable for connection to the
echosounder unit – EQ33-2. 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 cou-
pling ring clockwise until it clicks into locked position
) The EQ33-2 must be turned off while connecting/disconnecting the trans-
ducer cables.
Recommended transducers
Airmar single element two-frequency 50/200 kHz transducers i.e. B744, P319,
B45, B256, P66 and P52.
10.4.4 Interface connection

The 33 series feature three possibilities for interconnection and data sharing:
1. SimNet, which is recommended for control and data sharing

between Simrad SimNet products.
2. NMEA2000, SimNet products will interface and share data with

NMEA2000 based products.
3. NMEA0183, which has been the common standard for marine elec-
tronics. Interface connections are made via the combined power and
NMEA cable to the receptacle on EQ33-2 marked “PWR” on the rear
of the cabinet.
) The unit must be turned off while connecting/disconnecting the

interface cable.
SimNet is a high-speed control and data network designed to integrate SimNet

products into a complete system. Ready-made cables with small plugs makes
it easy to run cables. Only 10 mm (3/8”) holes are required through panels and
bulkheads. The SimNet accessory program contains the necessary items to
make a successful installation, see section 10.9 Specifications.
Plug and Play - once all products are connected and power is switched on, the
entire network system will be set up automatically and will ensure optimum
performance.
SimNet interface connection for EQ33-2 is made directly to the receptacle

marked NET on the rear of the cabinet. Use a Tee Joiner to make a drop
connection from the SimNet system to the NET receptacle.
EQ33-2
NET
Tee Joiner
SimNet
SimNet power and termination

The following simple rules should be observed when installing SimNet:
• SimNet must be powered with 12 VDC and connected to the battery via
circuit breaker and 5 amp fuse.
• Do not connect the SimNet power cable to the same terminals as the
Autopilot Computer, Radar, thruster or other high current products.
• SimNet should normally be terminated in each end, starting with the power
cable with termination in one end and termination plug or wind transducer
(with termination) in the other end.
10.5 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 trans-
ducer. In the event where the standard cable is not long enough, up to an addi-
tional 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 EQ33-2 must be turned off while connecting/disconnecting the trans-
ducer 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
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.
10.5.1 Transducers (optional)
Airmar B744V
Thru-hull triducer
Frequency: 50/200 kHz

Beam width: 45° / 15°
Cable length: 10m (32’)
Speed, temperature + depth informa-
tion.
Ref.no. 179-0401-009 (B744V)

Housing: Bronze
Recommended for fiberglass and
wooden hulls.
Airmar P319
Thru-hull mount
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.
Airmar P66
Transom mount
Speed, temperature + depth information
Reference no. 179-0401-001

Housing: Chemical resistant, high
impact plastic alloy.
Recommended for all type hulls.
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”)

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.
10.5.2 Determining the position for the transducer

The EQ33-2 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 loca-
tion 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 EQ33-2 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
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 mount-
ing 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 propel-

ler 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 for-
ward 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 Acoustic noise Electrical noise

noise
Air bubbles Main engine Noise from electrical cables
Turbulence Reduction gear propeller Noise from generators
Propeller shaft Poor grounding of instrument
Generators auxiliary Radiated noise from other
engines instruments
Power plant for freezers Dc – Dc converters
Hydraulic pumps Electrical winches
Rudder engine Neon lights
Bow thruster etc.
Stern thruster
10.6 Preventive maintenance
Surface cleaning – to keep the EQ33-2 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 uten-
sil using a scrubbing action.
) Do not use a harsh abrasive or a solvent to clean the transducer.
10.7 Repair and service

The EQ33-2 is sealed and does not contain any user serviceable parts. Open-
ing of this unit will void its warranty. If the EQ33-2 requires servicing or
repair, call your authorized SIMRAD dealer, but first check section 10.8
Troubleshooting.
Spare parts – fuses may be bought from a chandler or a marine supply store.
Use only fuses specified for this unit – see 10.9 Specifications.
If you require a SIMRAD part, please contact your authorized dealer.
10.8 Troubleshooting
For all fault finding, first check that the supply voltage is between 10-32 VDC
Symptom Check Remedy
No picture on display Check that the unit is Press the [PWR] key on
screen turned on keypad
Check fuse in power cable Replace fuse. Use only
fuse holder type T6.3A slow
Picture appears on the Press [PWR], adjust light/
display screen, but image contrast, press [ENT]
is too dark or too bright
No normal picture or key Turn unit off and on again
operation
Disconnect power and
connect power again
Return to factory presets,
see section 8.6
Echo picture appears Check that the correct Go to Echosounder setup
normal, but no target are transducer frequency is and select transducer fre-
shown or only random selected quency in section 8.1
“noise” is seen
Check that the transducer Correctly mate the con-
connectors are securely nectors to the unit
mated with the unit
Check that the receiver Increase the receiver gain
gain is set high enough in 5.6 Presentation setup
Check that the range is Adjust the range in 5.6
correct for the water depth Presentation setup
Excessive noise in echo Check for correct ground- Connected equip-
picture ing ment must be properly
grounded to the main unit
Some values are missing Check what type of data The engine source
in the engine displays. output is transmitted controls the value of the
from the engine(s) via the read-outs.
databus.
Unstable or no data from Check connection of Sim- Use minimum one termi-
SimNet. Net cables. Check for sta- nation e.g. the power cable
ble 12 Volt supply. Check with red disc.
termination is correct. Perform SimNet system
reset, see section 8.6.
Symptom Check Remedy

No data from replaced Check connection of Sim- Perform SimNet system
SimNet sensor. Net cables. reset, see section 8.6.
All data is deleted after Check battery lifetime. Internal battery must be
turning off the unit and Expected lifetime is min. replaced by authorized
turning it back on 5 years dealer
10.9 Specifications
General data
Power supply: 12 and 24 V DC (10-32 V DC max) 8-17 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 (3.3 lbs)
Environment: -10 to +55°C, IEC 60945, waterproof USC 46 CFR and IP55
Housing: Casted aluminum back, polycarbonate front
Display: TFT color, power backlight: 5.7” 320x240 pixels
Presentation: 4 pages. Manual, dedicated and remote switch, and automatic
sequencing.
Interfacing: 1 port in/out NMEA 0183
1 port SimNet / NMEA 2000
Alarm - signal output 5 V 50 mA
Fuse: T6.3A slow (5x20 mm)
SimNet control
Maximum number of products connected in a network:.....................50 units
Maximum cable length (excl. 30 m wind transducer cable): .......120 m (400’)
Bit rate of the bus: ................................................................... 250 kbit/second
Maximum DC current through a single SimNet plug: ................................5A
SimNet power supply: ............................................................... 10.8 - 15 VDC
Maximum drop cable length:.............................................................6 m (20’)
Maximum total length of all drop cables: .....................................60 m (200’)
Environmental protection: Cable and plug/connector system: .................IP66
Temperature: ...................................................................... max. 70°C (158°F)
Echosounder section
Frequencies: 50 or 200 kHz, selectable
Output power: Variable up to 600 watt RMS (4,800 W PP)
Impedance: 175 / 425 ohms
Display ranges: 5 to 1000 m (50kHz) or 5 to 400 m (200kHz), 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: Shift, bottom and VRM expansion, 1 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 pre-
sentation: A-scope and white line discrimination
Temperature: Sensor or NMEA
Speed: Sensor or NMEA
Alternative 50/200 kHz medium-range 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.
P66: 600W plastic transom mount triducer, depth, speed and temperature,
45° and 15° beam.
P319: 600W plastic thru-hull transducer, 45° and 15° beam.
ST850: Speed and temperature only.
Cables included
Power/NMEA cable, 2 m, incl. fuse (153-6070-002)
SimNet cables and accessories (not included)

SimNet cable 0.3 m (1’), (24005829)
SimNet cable 2 m (6.6’), (24005837)
SimNet cable 5 m (16.6’), (24005845)
SimNet cable 10 m (33’), (24005852)
SimNet Tee Joiner, 3 sockets (24005860)
SimNet Multi Joiner, 7 sockets (24006298)
SimNet cable gland (24005878)
SimNet protection plug (24005886)

SimNet termination plug (24005894)
2 m (6.6’) SimNet power incl. termination (24005902)
2 m (6.6’) SimNet power excl. termination (24005910)
AT10 Universal NMEA0183 converter (24005936)
SimNet cable protection cap (24005928)
SimNet/NMEA2000 drop cable (24005729)
Options
WR20 RemoteCommander
Sunhood (401-0024)
EQ33-2 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 EQ33-2 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.
Configuration – the configuration functions of the EQ33-2 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 EQ33-2 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.
Measurement units – the user may select the displayed units to be one of the
following:
m meters
ft feet, 1 foot is 0.3048 meter
fm fathoms, 1 fathom is 1.83 meters
nm nautical mile, 1 nm is 1852 meters
kn knots, nautical mile per hour
km kilometer, 1 km is 1000 meters
kh kilometer per hour
mi statute mile, 1 mile is 1609 meters
mh mile per hour
Pb passi braccio (Italian unit), 1 Pb is 1.65 meters
Appendix A-2 EQ33-2 Glossary of terms
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 organi-

zation of manufacturers of marine electronics equipment. They have adopted
the NMEA0183 as a standard for communications between various types of
marine electronic equipment.
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 EQ33-2 transmits a signal), and they also generate a voltage when they
encounter sound waves (as when the EQ33-2 is receiving an echo).
XTE – Cross-Track-Error (-Distance), measured magnitude of the position

error perpendicular to the intended track line.
EQ33-2 Echosounder Index
Agents end of manual Echosounder features - continued,

Alarms, - scroll synchronization 5-6
- depth 8-1,A-1 - selecting displays 5-1,5-2
- fish 8-1 - setup 8-1
- speed 8-4 - signal threshold 5-6
- XTE 4-1,A-2 - standard display 5-2
Alphanumeric names 8-16 - time / distance scale 8-1
- transducer 8-1,A-2
CE Declaration end of manual - transmission line 5-2
Compass reading 3-2 - transmit power 5-6
Configuration A-1 - transmit pulse length 5-6
Contrast & light 2-7 - TVG 5-6
Course over ground 4-2 - variable range marker 5-3
- magnetic or true 3-1 - VRM expansion 5-4
- white line 5-6
Daylight display 8-15 Effects of the vessel’s speed 9-4
Decca lanes 7-3 Electrical connections 10-5
- list of decca chains 7-3 - fuse 10-6
Depth in position display 3-1 - interface 10-6
Depth & temperature diagram 5-9 - power supply 10-6
Display color 8-15,A-1 - transducer 10-6
Engine data 6-1
Echosounder features 1-4 Event marker 5-6,A-1
- A-scope 5-4,A-1
- background color 8-16,A-1 Factory settings 8-6
- bottom expansion 5-4 - master reset 8-18
- color threshold 5-6 - power off - reset 8-18
- data field 5-3 - return to all factory presets 8-17
- demo mode 8-1 Fundamentals 2-1
- depth 3-2,8-1,A-1
- depth grid 5-6 Glossary of terms A-1
- event marker 5-6,A-1
- expansion window 5-6 How the echosounder works 9-2
- frequency 8-1,A-1 How to get started 1-3
- gain 5-6 How to use this manual 1-1
- hotkey 5-2
- menu 5-2 Initial start-up 2-6
- operation 5-1 Installation,
- ping to ping filter 5-6 - basic transducer and cable
- presentation setup 5-4,5-6 information 10-8
- range 5-2,5-6 - EQ33-2 10-3
- return to sounder presets 8-17 - determining the position for
- sampling 8-1 the transducer 10-11
- scroll speed 5-6 - location for display unit 10-4
Index EQ33-2 Echosounder
Installation - continued, Passi braccio 8-4,A-1

- notes 10-1 Pilot menu,
- sources of noise 10-11 - highway display 4-1,4-2
- transducers (optional) 10-8 Position
Interface setup, alarm output 8-11 - display 3-1
Interface setup 8-7 - menu 3-1
- description of sentences 8-13 - status 3-1
- return to SimNet / - waypoint location 8-9
NMEA presets 8-17 Power off 2-8
Interface software version 8-4 Power on 2-7
Introduction 1-1
Repair and service 10-12
Key functions 2-3
-dedicated function keys 1-4 Safety summary 1-2
Key symbols in manual 1-2 Serial number 8-4
Setup menu 8-1
Language 2-7,8-5 Show test display 8-17
Light & contrast 2-7 SimNet 2-6,8-7
Local time and date 3-1 Software version 8-4
Log 3-1 Specifications 10-14
- reset 3-2 Speed,
- speed calibration 8-10 - over ground 3-1,4-2
Loran C 7-4 - setup 8-4
- list of Loran C chains 7-4 - through water 3-1
Maintenance 10-12 Transducer beamwidth 9-3

Master reset 8-18 Troubleshooting 10-13
Measurement units A-2
- setup 8-4 Warranty end of manual
Menu bar 2-4 Wind display 7-1
Menu layout 2-5 - setup 7-2
Miscellaneous menu 7-1 - wind direction 7-1
- wind relative to the vessel 7-1
Navigation setup 4-1 - wind speed, relative or true 7-1
Night display 8-15 WR20 RemoteCommander 2-8
NMEA 8-7,A-2
NMEA0183 8-13 XTE - cross-track-error 4-1,4-2,A-2
NMEA2000 8-14
Page system 2-1

- preset pages 2-2
- rotation inverval 8-5
Palette setup 8-15
Parts of an echosounder 9-1
EQ33-2 Echosounder Index
EU Declaration of Conformity
I, the undersigned, hereby declare that the following equipment complies with the
relevant essential requirements in the EMC Directive.
Conformity EMC Directive 89/336/EEC of May 3rd, 1989

assessment
Employed EN60945.2002 Article 9, 10, and 12
harmonised
standard
Equipment Navigational equipment intended for world-wide use
category aboard non-SOLAS vessels
Model(s) Simrad EQ33-2 Echosounder
Remarks
Manufacturer Simrad Støvring AS

Østre Allé 6, DK-9530 Støvring
Denmark
Telephone +45 98373499
Telefax +45 98373807
Signed ……………………............… 14 April 2005

Odin Sletten, Customer Support Manager
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
•SatCom •SatTV.
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 Simrad Støvring AS
TO BE RETAINED BY THE OWNER Østre Allé 6
DK-9530 Støvring
Denmark
_____________________________________________ ___________________________________________
OWNER VESSEL
_____________________________________________ ___________________________________________
ADDRESS HOME PORT
___________________________________________
TYPE
SERIAL NO.
__________________________________________________________
EQUIPMENT
________________________________________________________________________
____________________________________
____________________________________
______________________ __________________________ YES:________ NO:________

DATE OF PURCHASE DATE OF INSTALLATION INSTRUCTION FOR USE GIVEN
SIMRAD warrants that every product

shall be free of defects in material and
___________________________________________ workmanship as specified overleaf:
AUTHORIZED INSTALLER/DEALER STAMP
tear out
WARRANTY CARD Simrad Støvring AS
To be mailed to the NATIONAL DISTRIBUTOR (see overleaf) Østre Allé 6
together with the installation report WITHIN 14 DAYS DK-9530 Støvring
from the date of installation. Denmark
_____________________________________________ ___________________________________________
OWNER VESSEL
_____________________________________________ ___________________________________________
ADDRESS HOME PORT
_____________________________________________ ___________________________________________
TYPE
SERIAL NO.
__________________________________________________________
EQUIPMENT
________________________________________________________________________
____________________________________
____________________________________
________________________________________ ________________________________________
DATE OF PURCHASE DATE OF INSTALLATION
________________________________________ ________________________________________
(CUSTOMER’S SIGNATURE) (DEALER’S SIGNATURE)
STAMP
HERE
NATIONAL SIMRAD DISTRIBUTOR:
_________________________________________________________________________
_________________________________________________________________________
_________________________________________________________________________
_________________________________________________________________________

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INSTRUCTION MANUAL

183-2350-102 06134.20 English

The technical data, information and illustrations contained in this publication

Chapter 1 Introduction and safety summary

Chapter 2 Fundamentals and initial startup

Chapter 3 Position menu

Chapter 4 Pilot menu

Chapter 5 Echosounder operation

Chapter 6 Engine monitoring

6.2 Fuel and transmission ...................................................................6-4

Chapter 7 Miscellaneous menu

Chapter 8 Setup menu

Chapter 9 Principles of operation

Chapter 10 Installation and service

10.5.2 Determining the position for the transducer .............................10-11

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

Index .............................................................................. end of manual

CE Declaration .......................................................................... end of manual

International warranty .............................................................. end of manual

List of Simrad distributors ........................................................ end of manual

1.1 Introduction and system familiarization

Congratulations on your purchase of SIMRAD EQ33-2 Echosounder and

The EQ33-2 is both an echosounder system with selectable frequency i.e. 50

How to use this manual?

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.

1.2 Safety summary

Grounding: To reduce electrical interference and risk of electrical shock,

1.3 How to get started

Automatic input source setup

To start automatic input

ENT Press [ENT] to continue

) Heading is only available if a compass was detected at start-up.

1.3.1 Dedicated function keys

1.3.2 Echosounder features

Bottom expansion* - Press [B-LCK] to call up the bottom lock display.

*Return to standard echosounder display by pressing [STND].

Transmit power off - Press [ENT], [STND] to stop transmission in order to

2.1 Fundamentals of the display and page system

The EQ33-2 Echosounder has a multi-function screen and data pres-

Full screen. Split screen.

There are four preset pages which

Toggle between the four pre-set pages manually:

Toggle between the four pre-set pages automatically:

Example of how to change a pre-set page:

MENU Call up the menu bar, and...

3,1 then call up the Echo 50kHz display

2.2 Key functions

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

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

STND Shortcut to standard echo display from any other display.

ZOOM Shortcut to VRM expansion from any other display.

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

ENT Opens for/confirms insertion and editing of data. Calls up Echo

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

2.3 Menu bar