Assembling
1. Place the cover on the transducer (see Figure 7). Align the holes
in the cover with the holes in the transducer and bracket.
TRIDUCER
®
multisensor
(with speed sensor)—
Be sure
the tab
on the cover fits under the speed sensor. This will help to lock the
cover in place.
2. Insert the two machine screws capturing the nuts in the slots in
the back of the bracket. Tighten the machine screws until the
transducer will stay in the “up” (released) position unaided.
3.
Transducer
without
speed sensor
—Insert the side rails of the
blank into the channels on the back of the transducer. Slide the
blank downward. Fasten it in place with the two, #6 x 5/8", self-
tapping screws.
Be sure
to capture the tab on the cover. This
will help to lock the cover in place.
TRIDUCER
®
multisensor
(with speed sensor)—Fasten the
speed sensor to the transducer with the two, #6 x 5/8", self-
tapping screws.
Testing on the Water
1. Become familiar with your echosounder’s performance at a
speed of 4kn (5MPH).
2. Gradually increase the boat speed and observe the gradual
decline in performance due to turbulent water flowing over the
transducer’s active surface.
3. If the degradation is sudden (not gradual), identify the boat
speed at which the onset occurred. Return the boat to this
speed, then gradually increase speed while making moderate
turns in both directions.
4. If the performance improves while turning, the transducer’s
position probably needs adjustment. It is probably in aerated
water. Move the transducer farther down into the water in
increments of 3mm (1/8"). If the performance does not improve
satisfactorily, move the transducer closer to the centerline of the
boat. Fill unused screw holes with marine sealant.
High-speed operation
(above 40MPH) may require less
projection in the water to improve performance.
Cable Routing
Route the sensor cable over the transom, through a drain hole, or
through a new hole drilled in the transom
above the waterline
.
Caution
: Never cut the cable or remove the connector; this will
void the warranty.
Warning
: Always wear safety goggles and a dust mask.
1. If a hole must be drilled through the transom, choose a location
well above the waterline
(see
Figure 4). Check for obstructions
such as trim tabs, pumps, or wiring inside the hull. Mark the
location with a pencil. Drill a hole using the appropriate size bit
to accommodate the connector.
2. Route the cable over or through the transom.
3. On the outside of the hull, secure the cable against the transom
using the cable clamps. Position a cable clamp 50mm (2")
above the bracket and mark the mounting hole with a pencil.
4. Position the second cable clamp halfway between the first
clamp and the cable hole. Mark this mounting hole.
5. If a hole has been drilled in the transom, open the appropriate
slot in the cable cover. Position the cover over the cable where it
enters the hull. Mark the two mounting holes.
6. At each of the marked locations, use a 3mm or 1/8" bit to drill a
hole 10mm (3/8") deep. To prevent drilling too deeply, wrap
masking tape around the bit 10mm (3/8") from the point.
7. Apply marine sealant to the threads of the #6 x 1/2" self-tapping
screws to prevent water from seeping into the transom. If you
have drilled a hole through the transom, apply marine sealant to
the space around the cable where it passes through the
transom.
8. Position the two cable clamps and fasten them in place. If used,
push the cable cover over the cable and screw it in place.
9. Route the cable to the instrument
being careful
not to tear the
cable jacket when passing it through the bulkhead(s) and other
parts of the boat. To reduce electrical interference, separate the
sensor cable from other electrical wiring and the engine(s). Coil
any excess cable and secure it in place with zip-ties to prevent
damage.
10.Refer to your echosounder owner’s manual to connect the
sensor to the instrument.
3
13
°
transom angle
14
°
–17
°
angle
Figure 6.Ttransducer angle adjustment
20
°
transom angle
3
°
transom angle
parallel
slight angle
angle
reversed
angle
too steep
shim with
shim with
taper down
taper up
slight angle
slight angle
Tighten the machine screws
until the transducer will
stay in the “up”
position unaided.
Figure 7. Assembling—exploded view
cover
side
channel (2)
rails
tab
#6 x 5/8"
transducer
self-tapping
screw
machine
screw
actual siz
e
actual siz
e
bracket
blank
