IMPORTANT! Never pull, carry, or hold the Multi-
sensor by the cable as this may sever internal con-
nections.
1.
From outside the hull, push the housing into the
mounting hole using a twisting motion to squeeze out excess
sealant (see Fig. 4). Align the arrow on the lip of the housing
to point forward toward the bow. If the Multisensor is not
installed on the centerline, angle the housing slightly toward
the centerline to align it with the water flow.
2.
From inside the hull, slide the washer onto
the housing.
Aluminum hull less than 6 mm (1/4”) thick—Use an
additional rubbery, fiberglass, or plastic washer. Never
use bronze since electrolytic corrosion will occur. Never
use wood since it will swell, possibly fracturing the plastic
housing.
3.
Screw the hull nut in place being sure the arrow
on the lip of the housing is still positioned forward toward
the bow.
Housing—Do not clamp tightly on the wrenching flats,
possibly causing the housing to fracture.
Hull nut—Hand-tighten only. Do not over tighten.
4.
Remove any excess sealant on the outside of the hull
to ensure smooth water flow over the multisensor.
WARNING: The O-rings must be intact and well
lubricated to make a watertight seal.
5.
After the sealant cures, inspect the O-rings on the insert
(replace if necessary) and lubricate them with the silicone
lubricant supplied.
WARNING: Be sure the insert is fully inserted into
the housing, and the cap nut is screwed on comple-
tely.
6.
Slide the paddlewheel insert into the housing with
the arrow on the top pointing forward toward the bow. Screw
the cap nut several turns until the threads are engaged. The
arrow on the top of the insert, the cable exit, and the arrow
on the lip will all be aligned. Continue to tighten the cap nut.
Be careful not to rotate the housing and disturb the sealant.
Hand-tighten only. Do not over tighten.
WARNING! Always attach the safety wire to prevent
the insert from backing out in the unlikely event that
the cap nut fails or is screwed on incorrectly.
7.
Attach the safety wire to one eye in the hull nut.
Lead the wire in a counterclockwise direction and thread
it through one eye in the cap nut. Thread the wire through
the eye a second time. Then lead the wire through the
eye in the insert. Twist the wire securely to itself.
IMPORTANT! Do not remove the connector to ease
cable routing. Cutting the cable or removing the
connector will void the warranty.
8.
Route the cable to the instrument being careful not
to tear the cable jacket when passing it through the bulk-
head(s) and other parts of the boat. To reduce electrical inter-
ference, separate the Multisensor cable from other electrical
wiring and the engine. Coil any excess cable and secure it in
place with zip-ties to prevent damage.
9.
Connect the Multisensor to instrument.
EVC
EC
— Connect the Multisensor to the X5 MULTILINK
connector, directly or via the Y-split, MULTILINK BREA-
KOUT cable (yellow PVC coating).
EVC
EC
-E — Connect the multisensor to the AUX bus
using the MULTISENSOR AUX Y-split
.
EVC
MC
— Connect the Multisensor’s 6-pole connector
to the Multisensor/Fuel level sender cable harness. The
cable harness is connected to C4 sleeve on the HIU mo-
dule.
EVC
MC
-C — Connect the Multisensor to the MULTILINK
connector, directly or via the Y-split, MULTILINK BREA-
KOUT cable (yellow PVC coating).
Others — Refer to the instrument owner’s manual.
Checking for Leaks
WARNING! Never install a thru-hull multisensor and
leave the boat in the water unchecked for several
days.
When the boat is placed in the water, immediately check
around the thru-hull multisensor for leaks. Note that very
small leaks may not be readily observed. It is best not to
leave the boat in the water for more than 3 hours before
checking it again. If there is a small leak, there may be
considerable bilge water accumulation after 24 hours. If a
leak is observed, repeat “Bedding” and “Installing” imme-
diately.
Servicing the Insert
Aquatic growth can accumulate rapidly on the depth
transducer’s surface and impede or freeze the padd-
lewheel’s rotation reducing performance within weeks.