Follow the precautions below for optimal
product performance and to reduce the risk of
property damage, personal injury, and/or death.
WARNING
: Always wear safety goggles and a dust mask
when installing.
WARNING
: The
YELLOW
O-ring must be in place near
the top of the insert to make a watertight seal.
WARNING
:
To retrofit the insert in a housing
without
a
valve, the insert must have a
BLACK
O-ring near the top
to make a watertight seal.
WARNING
: The O-rings must be intact and well
lubricated to make a watertight seal.
WARNING
: The valve is not a watertight seal! Be sure
the insert or blanking plug is fully inserted into the
housing, and the cap nut is screwed on completely.
WARNING
:
Always attach the safety wire to prevent the
insert or blanking plug from backing out in the unlikely event
that the cap nut fails or is screwed on incorrectly.
WARNING
: Immediately check for leaks when the boat is
placed in the water. Do not leave the boat unchecked for
more than three hours. Even a small leak may allow
considerable water to accumulate.
WARNING
:
Stainless steel housing in a metal hull
—
Be sure the washer contacts the hull. Do not tighten the
hull nut with the washer against the isolation bushing, as
the housing will not be firmly installed.
CAUTION
:
Plastic housing
—Never use a fairing with a
plastic housing; the protruding sensor would be
vulnerable to damage from impact.
CAUTION
:
Metal housing
—Never install a metal
housing in a vessel with a positive ground system.
CAUTION
: Never pull, carry, or hold the transducer by its
cable; this may sever internal connections.
CAUTION
: The arrow on the top of the transducer must
point toward the keel or centerline of the boat. This will
align the angle of the element inside the transducer with
the deadrise angle of your hull.
CAUTION
:
Stainless steel housing in a metal hull
—
The stainless steel housing must be isolated from a metal
hull to prevent electrolytic corrosion. Use the isolation
bushing supplied.
CAUTION
: Never use solvents. Cleaner, fuel, sealant,
paint, and other products may contain solvents that can
damage plastic parts, especially the transducer’s face.
IMPORTANT
: Read the instructions completely before
proceeding with the installation. These instructions
supersede any other instructions in your instrument
manual if they differ.
Thru-Hull
: Retractable
with
Valve
Tilted Element
™
Transducer
Tilt Angles: 0
°
, 12
°
, 20
°
Models:
DT800V-0°, DT800V-12°, DT800V-20°
U.S. Patent 7,369,458. U.K. Patent 2 414 077
17
-4
31
-0
1 re
v.
0
7
06
/09
/14
Record the information found on the cable tag for future reference.
Part No._________________Date___________Frequency________kHz
Applications
•
Plastic
housing recommended for fiberglass or metal hull only.
Never install a plastic housing in a wood hull since swelling of
the wood can fracture the plastic.
•
Bronze
housing recommended for fiberglass or wood hull.
Never install a bronze housing in an aluminum hull because
electrolytic corrosion will occur.
•
Stainless steel
housing compatible with all hull materials.
Recommended for aluminum hulls to prevent electrolytic corrosion
provided the stainless steel housing is isolated from the metal hull.
Match Tilt Angle of Transducer to Deadrise
Be sure your transducer model matches the deadrise angle of
your boat at the mounting location
. See the top of the transducer
insert for the tilt angle (see Figure 1). To measure the deadrise
angle of your hull at the selected mounting location, use an angle
finder or a digital level (see Figure 2).
• 0° model for deadrise angles from 0° to 7°
• 12° model for deadrise angles from 8° to 15°
• 20° model for deadrise angles from 16° to 24°
Figure 2. Deadrise angle of the hull
transom view
deadrise angle
slope of hull
parallel to waterline
Figure 1. Top of transducer insert
12° model
20° model
Copyright © 2006 Airmar Technology Corp.
Copyright © 2005 Airmar Technology Corp.
0° model
INSTALLATION INSTRUCTIONS
OWNER’S GUIDE &