Humminbird ONIX8, ONIX10 Installation Manual

ONIX8 and ONIX10

Installation Guide

TABLE OF CONTENTS

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Install the Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Install the Transducer. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Route the Cables. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Connect the Transducer Cable . . . . . . . . . . . . . . . . . . . . . . . . 17

Install Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Connect the Control Head Power Cable . . . . . . . . . . . . . . . . 19

Test and Finish the Installation . . . . . . . . . . . . . . . . . . . . . . . 20

Power On the Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Setup Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Set Up the Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Manage Your Control Head . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

NMEA Input/Output . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39

Side Imaging Transducer Mounting Template . . . . . . . . . . . 41

Contact Humminbird . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

532187-1_A

THANK YOU!

Thank you for choosing Humminbird®, the #1 name in marine electronics. Humminbird has built its reputation by designing and

anufacturing top-quality, thoroughly reliable marine equipment. Your Humminbird is designed for trouble-free use in even the harshest

m
marine environment. In the unlikely event that your Humminbird does require repairs, we offer an exclusive Service Policy. For complete
details, see the separate warranty card included with your unit. We encourage you to read this operations manual carefully in order to get
full benefit from all the features and applications of your Humminbird product.

Contact Humminbird Customer Service at 1-800-633-1468 or visit our Web site at humminbird.com.

WARNING! This device should not be used as a navigational aid to
prevent collision, grounding, boat damage, orpersonal injury. When
the boat is moving, water depth may change too quickly to allow
time for you to react. Always operate the boat at very slow speeds
if you suspect shallow water or submerged objects.

WARNING! The electronic chartin your Humminbird unit is an aid to
navigation designed to facilitate the use of authorized government
charts, not to replace them. Only official government charts and
notices to mariners contain all of the current information needed
for the safety of navigation, and the captain is responsible for their
prudent use.

WARNING! Compass Safe Distance: The control head must be
installed at least 4 feet (1.2 meters) from the compass or other
magnetic equipment on the boat. Also, see your compass
installation guide for details.

WARNING! Humminbird is not responsible for the loss of data files
(waypoints, routes, tracks, groups, recordings, etc.) that may occur
due to direct or indirect damageto the unit’s hardware or software.
It is important to back up your control head’s data files periodically.
Data files shouldalso be saved to your PC before restoring theunit’s
defaults or updating the software. See your Humminbird online
account at humminbird.com and the operations manual on your
Humminbird Manual CD for details.

NOTE: Some features discussed in this manual require a separate
purchase, and some features are only available on international
models. Every effort has been made to clearly identify those
features. Please read the manual carefully in order to understand
the full capabilities of your model.

NOTE: The illustrations in this manual may not look the same as
your product, but your unit will function in the same way.

NOTE: To purchase accessories or any additional equipment for
your control headconfiguration,go to humminbird.com or contact
Customer Service at 1-800-633-1468.

NOTE: The procedures and features described in this manual are
subject to change without notice. This manual was written in
English and may have been translated to another language.
Humminbird is not responsible for incorrect translations or
discrepancies between documents.

WARNING! Disassembly and repair of this electronic unit should
only be performed by authorized service personnel. Any
modification of the serial number or attempt to repair the original
equipment or accessories by unauthorized individuals will void the
warranty.

WARNING! This product contains chemicals known to the State of
California to cause cancer and/or reproductive harm.

WARNING! Do nottravel at high speed with the unit cover installed.
Remove the unit cover before traveling at speeds above 20 mph.

Environmental Compliance Statement: It is the intention of Johnson
Outdoors Marine Electronics, Inc. to be a responsible corporate citizen,
operating in compliance with known and applicable environmental
regulations, and a good neighbor in the communities where we make or
sell our products.

WEEE Directive: EU Directive 2002/96/EC “Waste of Electrical and
Electronic Equipment Directive (WEEE)” impacts most distributors,sellers,
and manufacturers of consumer electronics in the European Union. The
WEEE Directive requires the producer of consumer electronics to take
responsibility for the management of waste from theirproducts to achieve

nvironmentally responsible disposal during the product life cycle.

e

WEEE compliance may not be required in your location for electrical &
electronic equipment (EEE), nor may it be required for EEE designed and
intended as fixed or temporary installation in transportationvehicles such
as automobiles, aircraft, and boats. In some European Union member
states, these vehicles are considered outside of the scope of the Directive,
and EEEfor those applications can be considered excluded fromthe WEEE
Directive requirement.

This symbol (WEEE wheelie bin) on product indicates the product
must not be disposed of with other household refuse. It must be
disposed of and collected for recycling and recovery of waste EEE.

Johnson Outdoors Marine Electronics, Inc. will mark all EEE
products inaccordance with the WEEE Directive.It is ourgoal to complyin
the collection, treatment, recovery, and environmentally sound disposal
of those products; however, these requirements do vary within European
Union member states. For more information about where you should
dispose of your waste equipment for recycling and recovery and/or your
European Union member state requirements, please contact your dealer
or distributor from which your product was purchased.

ATTENTION INTERNATIONAL CUSTOMERS: Products sold in the U.S.
are not intended for use in the international market. Humminbird

nternational units provide international features and are designed

i
to meet country and regional regulations. Languages, maps, time
zones, units of measurement, and warranty are examples of
features that are customized for Humminbird international units

urchased through our authorized international distributors.

p

To obtain a list of authorized international distributors, please visit
our Web site at humminbird.com or contact Customer Service at

[phone].

ROHS Statement: Product designed and intended as a fixed installation

or part of a system in a vessel may be considered beyond the scope of
Directive 2002/95/EC of the European Parliament and of the Council of 27
January 2003 on the restriction of the use of certain hazardous
substances in electrical and electronic equipment.

360 Imaging™, Cross Touch™, Down Imaging®, DualBeam PLUS™, Humminbird®, i-Pilot®, ONIX™, and Side Imaging® are trademarked by or registered trademarks of
Johnson Outdoors Marine Electronics, Inc.

Adobe, Acrobat, Adobe PDF, and Reader are either registered trademarks or trademarks of Adobe Systems Incorporated in the United States and/or other countries.

Navionics® Gold and Navionics® Classic Charts are trademarked by or registered trademarks of Navionics®.

C-MAP® by Jeppesen is a registered trademark of Jeppesen Marine, Inc.

NMEA 2000® is a registered trademark of the National Marine Electronics Association.

© 2013 Johnson Outdoors Marine Electronics, Inc. All rights reserved.

INTRODUCTION

This manual will guide you through the following installation requirements:

• Installing the Control Head

Installing the Transducer

•

• Connecting Cables to the Control Head

• Connecting the Control Head to Power

• Powering On the Control Head

• Configuring the Control Head and Basic System Setup

PREPARATION

Before you start the installation, please take a moment to familiarize yourself with the parts
list and supplies list. We also encourage you to read the instructions beforehand so that you
may understand the installation requirements.

NOTE: Product supplies and features are subject to change without notice.

Parts

Your ONIX includes the following items:

A

A

ONIX control head with cover

B

gimbal mounting bracket with gimbal mounting hardware

C

(2) gimbal knobs

D

(2) urethane washers

E

(4) flat washers

F

(4) 1" - #10 wood screws

G

(4) 1" - split ring cable grommets

H

(1) transducer with transducer mounting hardware

I

power cable

Supplies

In addition to the parts supplied with your installation kit, you will need the following items:

• powered drill with various drill bits

• various hand tools, including

a socket wrench or flat blade screwdriver

ruler, straightedge, or measuring tape

level

12" plumb line (weighted string or monofilament line)

B

C

D

E

F

G

H

OR OR

DualBeam PLUS

transducers

Side Imaging

transducer

• marker or pencil

• safety glasses

• dust mask

• marine-grade silicone sealant

• dielectric grease (optional)

I

1

Introduction

Traditional Gimbal Mount

INSTALL THE CONTROL HEAD

Use the instructions in the following section to gimbal mount the control head on your boat.

NOTE: If you prefer to mount theHumminbird control head overhead, follow theinstructions
in thissection and install the gimbal bracketabove the control head (see Install the Gimbal
Bracket: Overhead Mount). Overhead and/or thin panels may require additional hardware
(separate purchase required) to securely mount the control head.

|

1

Determine the Mounting Location

Pre-assemble the control head to plan the best mounting location.

1. Place one urethane washer on one of the gimbal knobs. Thread the gimbal knob and
washer into the control head housing and tighten using 2-3 rotations. This will allow the
knob to stay in place while leaving adequate space to install the control head into the
bracket in the proceeding steps. See the illustration Assembling the Control Head.

2. Repeat step 1 for the other side of the control head.

Assembling the Control Head

front of

control head

Optional Gimbal Mount: Overhead

Flip bracket to the top
of the control head.

opening on

bracket arm

gimbal knob

urethane
washer

gimbal knob

urethane
washer

3. Install the control head into the arms of the bracket mount. Confirm the front of the
gimbal bracket is aligned with the front of the control head (see the illustration Gimbal
Bracket).

4. Hand-tighten the gimbal knobs to secure the control head to the gimbal bracket.

5. Place the assembled control head in various locations to determine the best mounting
location.

Consider the following when choosing a mounting location:

front of control head

Gimbal Bracket

Angled corners indicate

the front of the bracket.

Gimbal Bracket: Mounting Holes

outer screw holes

(recommended)

• The mounting area should allow sufficient room (approximately 2 to 4 inches [50.8

to 101.6 mm]) behind the chosen location to drill up to four 1-inch (25.4 mm) holes
for the cables to pass through.

• The mounting surface should be stable enough to protect the control head from

excessive wave shock and vibration.

• The mounting area should allow sufficient room so the control head can pivot

through its full tilt range.

Install the Control Head

front of bracket

2

• The mounting location should allow for visibility during

operation, as well as easy installation and removal.

• You must have access, either above or below the

ounting surface, to pass the cables through to the

m
control head.

6. Test route the appropriate cables (power, accessory, etc.) to
the control head mounting location. If the cables are too
short for your application, extension cables are available.
Contact Customer Service for information.

|

3

Install the Gimbal Bracket

Refer to the section that applies to your installation and perform

he procedures to install the gimbal bracket.

t

Installing the Gimbal Bracket

wood screws

|

2

Drill the Mounting Holes

1. Loosen the gimbal knobs and remove the control head from
the gimbal bracket.

2. Place the gimbal bracket in the chosen position on the
mounting surface and mark the four outer screw locations
using a pencil or center punch (see the illustration Gimbal
Bracket: Mounting Holes). Confirm the front of the bracket is
facing forward.

NOTE: The outer mounting holes are recommended.
You may use the interior mounting holes if necessary.

3. Set the gimbal bracket aside. Select an appropriately sized
drill bit for the #10 wood screws and drill four pilot screw
holes.

NOTE: When drilling holes in fiberglass, start with a
smaller bit and use progressively larger drill bits to
reduce the chance of chipping the outer coating.

4. Mark and drill a 1-inch (25.4 mm) diameter hole that will
allow you to run the cables close to the mounting bracket.
This hole should be centered approximately 2 to 4 inches
(50.8 to 101.6 mm) from the back of the control head.

NOTE: Your installation may require additional cable
holes. Mark and drill up to four holes according to the
instructions in step 4.

5. Insert the plastic cable grommets (included) to smooth the
hole edges and prevent damage to the cables.

flat washers

Traditional Mount

1. Place the bracket on the mounting surface aligned with the
drilled holes and fill the holes with marine-grade silicone
sealant.

2. Place one flat washer on each wood screw and install the
wood screws into the four mounting holes (see the
illustration Installing the Gimbal Bracket).

3. After all four screws are in place, tighten each screw until
secure.

4. Place the control head back onto the gimbal bracket (see
Determine the Mounting Location for details). Adjust the
control head viewing angle as needed and tighten the gimbal
knobs until the assembly is secured.

Overhead Mount

1. Place the bracket on the mounting surface aligned with the
drilled holes. Fill one hole with marine-grade silicone
sealant.

2. Place one flat washer on a wood screw and install the wood
screw into the hole (see the illustration Installing the Gimbal
Bracket). Repeat for the remaining three holes.

3. Tighten each screw until it is secure.

4. Place the control head back onto the gimbal bracket (see
Determine the Mounting Location for details). Adjust the
control head viewing angle as needed and tighten the gimbal
knobs until the assembly is secured.

NOTE: Overhead and/or thin panels may require
additional hardware (separate purchase required) to
securely mount the control head.

3

Install the Control Head

INSTALL THE TRANSDUCER

Review the transducer installation options and the transducer mounting requirements in the following sections. Then proceed to the

nstallation section for your transducer type as follows:

i

• DualBeam PLUS Transducer

• Side Imaging Transducer

NOTE: If the included transducer will not work for your application, you can exchange it, NEW and UNASSEMBLED, with the transducer

mounting hardware included, for a transducer appropriate for your application. This offer applies to the DualBeam PLUS transducer only.
Visit humminbird.com for more information or call Customer Service at 1-800-633-1468.

TRANSDUCER INSTALLATION OPTIONS

Your ONIX control head includes either a DualBeam PLUS transducer or a Side Imaging transducer. Depending on your transducer type,
there are different options available for mounting the transducer on the boat. Review the transducer installation options below.

Transom Transducer Installation

Available for the DualBeam PLUS transducer and the Side Imaging transducer.

Your transducer includes the transom mounting hardware. See Transom Transducer
Installation for additional information.

In-Hull Transducer Installation

Available for the DualBeam PLUS transducer only.

In-hull mounting generally produces good results in single thickness, fiberglass-hulled boats.
See DualBeam PLUS Inside the Hull Installation for installation instructions.

Humminbird cannot guarantee depth performance when transmitting and receiving through
the hull of the boat, since some signal loss occurs. The amount of loss depends on hull
construction and thickness, as well as the installation position and process.

NOTE: This installation requires slow-cure two-part epoxy. Do not use silicone or any other
soft adhesive to install the transducer, as this material reduces the sensitivity of the unit. Do
not use five-minute epoxy, as it has a tendency to cure before all the air bubbles can be
purged, thus reducing signal strength.

NOTE: The integral temperature probe will not work with in-hull mounting, so you may want
to consider purchasing a Temperature/Speed accessory, a Temp Sensor, or obtaining a
different transducer.

Transom Transducer Installation

In-Hull Transducer Installation

NOTE: In-hull mounting requires an installed and operational control head.

Trolling Motor Transducer Installation

Available for the DualBeam PLUS transducer and the Side Imaging transducer.

You can purchase a Trolling Motor Adapter kit that will allow you to mount the transducer on
the trolling motor. If you already have a trolling motor bracket, refer to the separate installation
instructions that are included with the bracket.

NOTE: Visit our Web site at humminbird.com for more information, or call Customer Service
at 1-800-633-1468 for details and pricing.

Install the Transducer

4

Trolling Motor Transducer Installation

Installing theTransom Mount Transducer

TRANSOM TRANSDUCER INSTALLATION

Your ONIX control head includes transom mounting hardware for your DualBeam PLUS or

ide Imaging transducer. Review the mounting requirements in this section, and then proceed

S
to the section for your transducer type to begin the installation.

NOTE: Due to the wide variety of hulls, only general instructions are presented in this
installation guide. Each boat hull represents a unique set of requirements that should be
evaluated prior to installation. It is important to read the instructions completely and
understand the mounting guidelines before beginning installation.

INSTALLATION OVERVIEW

The transom mount installation provides the following:

• Least loss of signal since the transducer is mounted outside the hull.

• Allows adjustment of both running angle and depth after the transducer is mounted, which enables you to tune the installation

for best results.

• The mounting hardware is designed to pivot the transducer body out of the way should the boat strike debris in the water, or when
trailering.

TRANSOM TRANSDUCER MOUNTING REQUIREMENTS

You must first determine the best location on the transom to install the DualBeam PLUS or Side Imaging transducer. Review the
following information to help you identify the best mounting location.

Turbulence

It is very important to locate the transducer in an area that is relatively free of turbulent
water. Consider the following to find the best location with the least amount of turbulence:

Turbulence: As the boat moves through the water, turbulence is generated by the weight of

the boat and the thrust of the propeller(s) - either clockwise or counter­clockwise. This turbulent water is normally confined to areas immediately aft of
ribs, strakes, or rows of rivets on the bottom of the boat, and in the immediate
area of the propeller(s).

Propellers: Clockwise propellers create more turbulence on the port side. On outboard or

inboard/outboard boats, it may be best to locate the transducer at least 15" to
the side of the propeller(s). The Side Imaging transducer has additional
mounting requirements. See the section Side Imaging Transducer Mounting
Requirements.

If the transom is behind the propeller(s), it may be impossible to find an area
clear from turbulence, and a different mounting technique or transducer type
should be considered.

Find a turbulence-free location that is not in line with trailer bunks or rollers.

Areas of Possible Turbulence

rivets

strakes

Stepped Hull

transom

hull

step

5

Transom Transducer Installation

rib

Observation: The best way to locate turbulence-free water is to view the transom while the boat is moving. This method is

recommended if maximum high-speed operation is a high priority. If this is not possible, select a location on the
transom where the hull forward of this location is smooth, flat, and free of protrusions or ribs.

Boat Characteristics

Stepped Hulls: On boats with stepped hulls, it may be possible to mount the transducer on the step. Do not mount the transducer on

he transom behind a step to avoid popping the transducer out of the water at higher speeds. The transducer must

t
remain in the water for the control head to maintain the sonar signal.

Trailering: If you plan to trailer your boat, do not mount the transducer too close to trailer bunks or rollers to avoid moving or

damaging the transducer during loading and unloading of the boat.

High-Speed Operation

DualBeam PLUS Transducer

Traveling over 65 mph with the transducer in the water is not recommended for the 200/50 kHz DualBeam PLUS transom mount
transducer (XNT 14 74 T), as damage might occur. If high-speed operation is critical, you may want to consider using an inside the hull
transducer instead of this transom mount transducer (see DualBeam PLUS Inside the Hull Installation).

Side Imaging Transducer

Side Imaging sonar is best performed at boat speeds from 2 to 6 mph, and is not recommended for high-speed operation as gaps
between strips of information can appear. However, the transducer can support traditional 2D sonar and Down Imaging sonar at higher
speeds (up to 65 mph).

NOTE: The Side Imaging transducer has additional mounting requirements. See the section Side Imaging Transducer Mounting
Requirements.

NOTE: If you require a high-speed application (above 65 mph) and cannot find a transom mount location that will work for your
boat hull, a different mounting technique or transducer type should be considered. See the FAQ (Frequently Asked Questions)
section of our Web site at humminbird.com or call Customer Service at 1-800-633-1468.

Deadrise

DualBeam PLUS Transducer

The hydrodynamic shape of your transducer allows the beam elements to point straight down
without deadrise adjustment.

Side Imaging Transducer

In order for the side beams to be displayed accurately, the transducer must be mounted parallel
with the waterline. This positioning allows the beam elements to point straight down without
deadrise adjustment.

Deadrise

deadrise angle

Transom Transducer Installation

6

ualBeam PLUS Transducers

D

INSTALL THE DUALBEAM PLUS TRANSDUCER

Use the procedures in the following sections to install the DualBeam PLUS transducer on

our boat. Your installation choices are as follows:

y

• Transom Mount

• Inside the Hull Mount

200/83 kHz

200/50 kHz

NOTE: Your transducer might not look exactly like the illustrations in this guide, but it will
mount in the same way.

DUALBEAM PLUS TRANSOM MOUNT INSTALLATION

|

1

Prepare the Mounting Location

In this procedure, you will determine the mounting location and drill two mounting holes,
using the transducer mounting bracket as a guide.

1. Confirm you have read the transducer mounting requirements under Transom
Transducer Mounting Requirements.

2. Make sure that the boat is level on the trailer, both from port to starboard and from
bow to stern, by placing your level on the deck of the boat, first in one direction, then in
the other.

3. Hold the mounting bracket against the transom of the boat in the location you have
selected. Align the bracket horizontally using the level. Make sure that the lower corner
of the bracket does not protrude past the bottom of the hull, and there is at least 1/4"
clearance between the bottom of the bracket and the bottom of the transom for
fiberglass boats, and 1/8" clearance for aluminum boats.

NOTE: If you have a flat-bottomed aluminum boat, some additional adjustment may be
needed to accommodate the rivets on the bottom of the boat (in other words, the gap
may need to be a little smaller than 1/8"). This will help you to avoid excessive turbulence
at high speeds.

Positioning the Mounting Bracket

Level

Level

Boat Hull Types Require

Different Mounting Positions

NOTE: If your propeller moves clockwise as the boat moves forward (as you're facing the

stern of the boat from behind), mount the transducer on the starboard side, and align
the bottom right corner of the mounting bracket with the bottom of the boat. If your
propeller moves counterclockwise as the boat moves forward (as you're facing the stern
of the boat from behind), mount the transducer on the port side, and align the bottom
left corner of the mounting bracket with the bottom of the boat.

4. Continue to hold the bracket on the transom of the boat, and use a pencil or marker to
mark where to drill the two mounting holes. Mark the drill holes near the top of each slot,
making sure that your mark is centered in the slot, as shown in the illustration.

NOTE: The third hole should not be drilled until the angle and height of the transducer is
finalized, which you will not do until a later procedure.

5. Make sure that the drill bit is perpendicular to the actual surface of the transom, NOT
parallel to the ground, before you drill. Using a 5/32" bit, drill the two holes only to a
depth of approximately 1".

NOTE: On fiberglass hulls, it is best to use progressively larger drill bits to reduce the
chance of chipping or flaking the outer coating.

1/8" for aluminum

1/4" for fiberglass

Using the Mounting Bracket

to Mark the Initial Drill Holes

mark initial drill holes

7

Install the DualBeam PLUS Transducer

|

-

2 -1 012345678910 11 12 13 14 15 16 17 18 19 20 21 22 23 24

Transom Angle (°)

Bead Alignment

Number

142531425

2

5 26 27

3

2

8 29 30

1

Measured Distance (x)

1

.1cm

1

/2“

0

.0 cm

0

“

2

.5 cm

1

“

4

.3 cm

1

5/8“

5

.9 cm

2

3/8“

7

.6 cm

3

“

9

.3cm

3

5/8“

1

1.1cm

4

3/8“

1

2.9cm
5

“

1

4.9cm

5

7/8“

1

6.9cm

6

5/8“

2

Assemble the Transducer and Initial Mounting

In this procedure, you will assemble the transducer using the hardware provided, then mount it and make adjustments to its position

ithout locking it in place.

w

NOTE: You will initially assemble the transducer and the pivot arm by matching the two ratchets to a numbered position on the
transducer knuckle. Further adjustments may be necessary.

Determine Your Transom Angle

1a. If you already know your transom angle, refer to the chart below for the initial position to use to set the ratchets. If your transom

is angled at 14 degrees (a common transom angle for many boats) use position 1 for the ratchets. In either case, go to step 2.

or...

1b. If you do not know your transom angle, measure it using a plumb line (weighted nylon string

or monofilament line) exactly 12 inches long. Hold the top of the plumb line against the top
of the transom with your finger, and wait until the line hangs straight down. Using a ruler,
measure the distance from the bottom of the plumb line to the back of the transom, then
use the chart. Refer to the illustration, Measuring the Transom Angle, for more information.

NOTE: It is important to take your measurement in the location shown in the Measuring the
Transom Angle illustration, from exactly 12 inches down from the top of the transom.

Assemble the Transducer

2. Place the two ratchets, one on either side of the transducer knuckle, so that the beads on
each ratchet line up with the desired position number on the knuckle. If you are setting the
ratchets at position 1, the beads on each ratchet will line up with the rib on the transducer
knuckle to form one continuous line on the assembly.

NOTE: The ratchets are keyed. Make sure that the square teeth on each ratchet face the square
teeth on the transducer knuckle, and the triangular teeth face outward.

3. Hold the ratchets on the transducer knuckle with one hand and fit the pivot arm over them
until it snaps into place with the other hand. Refer to the illustrations below.

Transducer Knuckle Positions

knuckle

Ratchets Placed in Position 1

beads

ratchet

Ratchets Placed in Position 2 Fitting the Mounting

bead

ratchet

Measuring the Transom Angle

plumb line

transom

angle in

degrees (°)

measured

distance (X)

weight

Bracket Over the Ratchet

rib at

position 1

Install the DualBeam PLUS Transducer

rib

8

4. Put the pivot bolt through the assembly to hold it in position and loosely install the nut,
but do NOT tighten the nut at this time.

CAUTION! Do not use a high speed driver on this combination of fasteners. Hand-tighten

nly.

o

5. Insert the pivot arm assembly into the mounting bracket as shown in the illustration.
Do NOTsnapthe assemblyclosed,as you willneedto access the mountingbracketin the next
step.

NOTE: If the pivot assembly is snapped closed over the mounting bracket, use a flathead
screwdriver or similar tool to gently pry the assembly away from the mounting bracket.

Mount the Transducer

6. Align the mounting bracket transducer assembly with the drilled holes in the transom.
With a 5/16" socket driver, mount the assembly to the transom using the two #10 - 1"
long screws (provided). Hand-tighten only!

NOTE: Make sure that the mounting screws are snug, but do not fully tighten the
mounting screws at this time to allow the transducer assembly to slide for adjustment
purposes.

7. Snap the pivot arm down into place.

nserting the Pivot Bolt -

I

200/83 kHz Transducer

nserting the Pivot Bolt -

I

200/50 kHz Transducer

Make Adjustments to the Transducer Mounting Position

8. Adjust the initial angle of the transducer from back to front by rotating the transducer
until the side seam on the transducer is almost parallel with the bottom of the boat, one
click at a time in either direction. See the illustration Adjusting the Initial Transducer
Angle.

Adjusting the Initial Transducer Angle - 200/83 kHz Transducer

one click too high

correctly aligned
(transducer side
seam is aligned
with boat bottom)

trailing edge

leading edge

Adjusting the Initial Transducer Angle - 200/50 kHz Transducer

one click too low

Inserting the Pivot Arm Assembly

into the Mounting Bracket

Prying the Assembly Away from

the Mounting Bracket

Mounting the Assembly to the Transom

leading edge

one click too high

correctly aligned
(transducer side
seam is aligned
with boat bottom)

trailing edge

one click too low

9

Install the DualBeam PLUS Transducer

9. Adjust the transducer assembly vertically, until the seam on the leading edge of the
transducer (the edge closest to the transom of the boat) is level and just slightly
below the hull.

NOTE: The transducer has a natural downward slant of 4 to 5 degrees from leading edge
(closest to the boat transom) to trailing edge (farthest away from the boat). Looking at

he back of the transducer, the seam should be slightly below the bottom of the hull.

t

10. Continue to adjust the transducer assembly until the bracket is also level from port to
starboard (horizontally level as you look at the transducer from behind the boat).

11. Mark the correct position on the transom by tracing the silhouette of the transducer
mounting bracket with a pencil or marker.

Adjusting the Transducer

Mounting Position

12. Tighten the pivot bolt, using the pivot screw and nut to lock the assembly. Hand-tighten
only!

CAUTION! Do not use a high speed driver on this combination of fasteners. Hand-tighten
only.

13. Snap open the assembly and hand-tighten the two mounting screws, then snap the
assembly closed.

NOTE: You will drill the third mounting hole and finalize the installation after you route
the cable and test and finish the installation in the following procedures.

Proceed to the section Route the Cables.

DUALBEAM PLUS INSIDE THE HULL INSTALLATION

seam aligned
with boat hull

Leveling the Mounting

Assembly Horizontally

Level

Level

In-hull mounting generally produces good results in single thickness, fiberglass-hulled boats. Humminbird cannot guarantee depth
performance when transmitting and receiving through the hull of the boat, since some signal loss occurs. The amount of loss depends
on hull construction and thickness, as well as the installation position and process.

This installation requires slow-cure two-part epoxy. Do not use silicone or any other soft adhesive to install the transducer, as this
material reduces the sensitivity of the unit. Do not use five-minute epoxy, as it has a tendency to cure before all the air bubbles
can be purged, thus reducing signal strength.

NOTE: The integral temperature probe will not work with in-hull mounting, so you may want to consider purchasing a
Temperature/Speed accessory, a Temp Sensor, or obtaining a different transducer.

NOTE: In-hull mounting requires an installed and operational control head.

Install the DualBeam PLUS Transducer

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