CAUTION!
To avoid damage, do not overtighten the nut.
9. Remove the excess adhesive sealant from the outside of the hull to ensure smooth water flow over the
transducer.
4.
Routing the Cable
The transducer cable must be routed to the point where the control head is mounted.
NOTE:
Your boat may have a pre-existing wiring channel or conduit that you can use for the transducer cable.
1.
Unplug
the
other
end
of
the
transducer
cable
from
the
control
head.
CAUTION!
Do
not
cut
or
shorten
the
transducer
cable,
and
try
not
to
damage
the
cable
insulation.
Route
the
cable
as
far
as
possible
from
any
VHF
radio
antenna
cables
or
tachometer
cables
to
reduce
the
possibility
of
interference.
If
the
cable
is
too
short,
extension
cables
are
available
to
extend
the
transducer
cable
up
to
a
total
of
50'.
CAUTION!
Do
NOT
mount
the
cables
where
the
connectors
could
be
submerged
in
water
or
flooded.
If
cables
are
installed
in
a
splash-prone
area,
it
may
be
helpful
to
apply
dielectric
grease
to
the
inside
of
the
connectors
to
prevent
corrosion.
Dielectric
grease
can
be
purchased
separately
from
a
general
hardware
or
automotive
store.
2.
Route
and
secure
the
cable,
avoiding
areas
where
it
may
be
damaged
or
interfere
with
normal
boating
operations.I
5.
Connecting the Cable
Refer to your manual and/or control head installation guide for the correct procedure for installing the cable
connectors to the control head. Whether through the cable collector or directly to the control head, insert the
transducer cable connector into the appropriate slot or port. The cable connectors are labeled, and there are
corresponding labels on the cable collector and control head. The connectors are keyed to prevent reversed
installation, and insertion should be easy— do not force the connectors into the ports.
NOTE:
If the connector on the cable is round, it has a screw nut (see the illustration
Transducer Connectors
). Hand
tighten the screw nut to secure the cable connection.
Hand tighten only!
6.
Setting up the Transducer on the Control Head
Use the following instructions to set the transducer type in the control head. When you select the transducer type,
the related views and menus will be added to the system.
Before you proceed, review the following information:
• If
your
transducer
has
the
round
connector,
see
your
Humminbird®
control
head
operations
manual
to
set
up
the
transducer
sources
on
the
control
head.
The
instructions
in
this
section
do
not
apply
to
your
fishing
system.
• If
your
fishfinder
is
a
PiranhaMAX,
or
does
not
include
the
Transducer
Select
or
Connected
Transducer
menu
option,
no
further
action
is
required.
The
transducer
will
be
detected
automatically
if
it
is
compatible
with
the
control
head.
See
your
control
head
operations
manual
for
details.
• If
the
transducer
you've
purchased
is
not
compatible
with
your
Humminbird®
control
head,
the
unit
will
not
function
properly.
1. Press the POWER/LIGHT key to power on the control head.
2. Press the MENU key. When the control head detects a functioning transducer, it will automatically enter Normal
operating mode. Follow the on-screen prompts.
3.
Main Menu:
Press the Menu key twice.
4. Use the 4-WAY Cursor Control key to select the Sonar tab > Transducer Select or Connected Transducer.
Plastic Thru-Hull Transducer
3.
Attaching the Transducer
Before attaching your transducer, you will need to decide which type of installation to use:
• For a standard installation, where there are no major obstructions and the deadrise is less than 8 degrees, use
the included leveling block (uncut), and mount it inside the hull. Drill the hole perpendicular to the hull.
• For an installation that needs to minimize the impact of a small obstruction, but where the deadrise is less than
8 degrees, use the included leveling block (uncut), and mount it outside the hull. Drill the hole perpendicular to
the hull.
• For an installation where the deadrise is greater than 8 degrees, use the included leveling block, cut at the
appropriate angle, to compensate for the deadrise. Drill the hole perpendicular to the waterline.
1. From the outside of the hull, drill a small pilot hole (smaller than the centering bit of your drill bit or hole saw), at
the mounting location you selected in procedure 2.
CAUTION!
Before you drill, make sure you are drilling in the correct orientation according to the installation guidelines
above.
2. Use the pilot hole (from the outside of the hull) to drill a 1 1/8" hole that is sized to fit the threaded stem of
the transducer:
NOTE:
For installations where the deadrise is less than 8 degrees, where you will not be cutting the leveling block, drill the
hole perpendicular to the hull.
NOTE:
For installations where the deadrise is greater than 8 degrees, and you will be cutting the leveling block at an angle,
drill the hole perpendicular to the waterline.
3. Thoroughly clean and deburr the drilled hole and clean the outside of the hull.
4a.
If the deadrise is less than 8 degrees,
you will not be cutting the leveling block; install it either on the inside of
the hull (standard installation) or on the outside of the hull to compensate for small obstructions.
OR...
4b.
If the hull angle is greater than 8 degrees,
you should cut the included leveling block and use both pieces to
level the transducer. The block should be cut to match the angle of the deadrise of the hull. The leveling block
included with your transducer can accommodate a maximum deadrise angle of 25 degrees.
CAUTION!
Use only the leveling block included with this transducer. Do NOT use a wooden leveling block, as any swelling
of the wood might cause the plastic on the transducer to shatter.
NOTE:
Replacement leveling blocks are available from Humminbird®. For assistance, contact the Humminbird® Customer
Resource Center at
humminbird.com
or call
1-800-633-1468
.
NOTE:
You should cut the leveling block into two equal pieces: one which mounts outside the hull and is shaped to match
the profile of the transducer, and one which mounts inside the hull and provides a level surface for the fasteners. The
thinnest wall of the outside leveling block must be at least 1/8".
NOTE:
A separately-purchased fairing block can also be used to create a hydrodynamic waterflow around the transducer
body. The design and fabrication of this block varies greatly with different hull shapes; therefore, it should be customized by
a qualified marine technician.
5. Feed the cable through the hole, then temporarily install the transducer to check the fit.
6. Apply a generous amount of marine-grade silicone sealant or slow-curing epoxy inside the drilled hole and along
the mating surfaces of the transducer housing. Also, seal the mating edges of the leveling block.
7. Make sure that the narrow (thin) end of the transducer is pointing forward. Insert the transducer into the drilled
hole from outside the boat, then install the nut onto the threaded stem from inside the boat.
NOTE:
This type of transducer is directional in nature and must be aligned with the front of the boat (the direction of travel)
and parallel to the center line. Failure to align the transducer properly will result in incorrect bottom readings and incorrect
fish locations (see the illustration
Correct Orientation of Transducer
).
8. Hand tighten the nut ONLY until the assembly is firmly seated, then tighten NO MORE than 1/8 of a turn extra.
Cut-leveling blocks
Hull
Apply Marine Adhesive
Sealant to all mating surfaces
1/8"
Minimum
thickness
Leveling block (can
also be positioned
outside of the hull)
Hull
Installation for deadrise angle greater than 8°,
using a cut leveling block to level transducer.
Standard Installation
Apply Marine Adhesive
Sealant to all mating surfaces
Correct Orientation of Transducer
Plastic Thru-Hull Transducer
2
530758-4_A
Transducer Connectors
Hexagon-Shaped
Connector
Round
Connector
Screw
Nut
530758-4_A copy.qxp:530758-3_B
11/14/12
8:08 PM
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