Instruction manual
..
b.
o.
d.
..
f.
,
NOTE
If
hull thickness is less
than
314
inch, a backing plate should be used
on inside
of
hull
at
transducer
location.
Remove boat from water.
Select location
On
center line, forward
of
keel
in
area
of minimum water turbulence.
Transducer should
be
at
least
18
inches from keeL Allow minimum 5-inch clearance
radius
for acce.sability inside hull.
Drill 3I8-inch
diameter
pilot hole
through
huH
(and backing plate,
if
used).
Cut
1.7f8-inch hole through hull.
Apply
bedding compound to
inner
surface of
transducer
flange
and
insert
tnmducer
shank
through hole from outside hull. Verify proper fit. Small amount
of
bedding compound
should
nude
evenly around outer edge
of
flange.
From
inside hull,
instan
large flanged
nut
on
transducer
shank, To properly
seat
transducer, tighten
nut
fmoly with wrench.
Carefully wipe
ofT
ucess
bedding compound from around tran&rlucer flange, Figure 5
shows completed
transducer
installation.
-
INSTRUMENT INSTALLATION
The
instrument/indicator may be installed in a bulkhead
Or
instrument
panel.
The
location
mu.t
have a clear diameter of 5.50 inches and a reBr clearance
of
5 inches (See Figure
1).
The installer
should have availabla
the
following installation tooll:
4.5-inch diameter hole
saw
Screwdriver
Bedding compound
CAUTION
Do
not use polysulphide bedding compound. such a
3M
3700, Boat Life,
Or
Life
Caulk
on inltrument/indicator. Use silicone,
non-hardening
bedding compounds such
as
GE Silicone Seal.
"-"""""
Before installing
the
instrument/indicator,
the
DIP switches must
be
preset, since they may become
inaccessible
after
installation.
The
DIP switch pack is located on
the
component side of
the
main
board
alSembly.
The
DIP switch contains four
miniature
rocker type switches - labelled 1 2 3
4.
This
is
shown in Figure 6.
Remove
three
screws from sides ofinst.rument housing; they secure back panel to housing.. Gently
pull
back panel away from houling. Entire electronics assembly is attached to back panel, and DIP
switch pack is
at
left on board assembly,
IS
shown in Figure
7.
The first switch (11 l, is used
tel
select feet
Or
meters, The other switches are used
in
a binary format
tel
set
the
keel offset (in feet).
To
set
the
indicator to display depth in
meten,
push switch
'1
tel
the
"OPEN" position.
Iffeet
are
required, depress
the
switch to
the
"'number" position.
To
set
keel offset,
fint
determine
the
vertical distance from
the
transducer
location
in
your boat to
the
bottelm of the keeL
(The
offset control can only handle whole
numben.)
If,
for example, your keel is
3'7" below
the
tran&rlucer,
the
number
4 should be selected on the keel offset switch. Table 1 shows the
switch positions
VeJ"!l\l!l
the
desired keel depth.
TABLEt
KEEL OFFSET SWITCHES
, 3 •
Figure
5. Completed
Tnnllducer
Installation
•
o
1
,
3
•
5
,
7
OPEN
=
••
• • •
OPEN'
,
,
OPEN'
OPEN
OPEN'
• •
OPEN
OPEN'
OPEN
, OPEN
OPEN
OPEN OPEN
OPEN
Rocker arm
pwhed
down on OPEN SIDE
of
DIP switch.
Rocker
arm ia pUJhed down on "number"
.ida
of
DIP
lwitch.
5