Airmar Tilted Element DT800 Owner's Manual

OWNER'S GUIDE
Thru-Hull
:
Retractable with Valve
Tilted Element
Model: DT800
Patent http://www.airmar.com/patent.html
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 glasses, a dust mask, and
ear protection when installing.
WARNING: The valve is not a watertight seal! Always
install the insert or blanking plug. Be sure it is fully inserted
into the housing and the cap nut is screwed on completely
for a watertight seal.
WARNING: All the O-rings must be intact and well lubricated
to make a watertight seal. Do not dry fit the insert in the
housing. Attempting to install the insert without lubricating all
O-rings will damage them, possibly preventing full insertion
and a watertight seal.
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: 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: Never pull, carry, or hold the sensor by its cable;
this may sever internal connections.
CAUTION: The arrow on the top of the insert must point
toward the keel/centerline of the boat. This will align the
angle of the element inside the transducer with the deadrise
angle of your hull.
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: Stainless steel housing in a metal hull—A
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.
CAUTION: Never power sand or pressure wash the sensor. It
may weaken the structure or damage the internal components.
&
Temperature Sensor
&
Transducer
™
Tilt Angles: 0 , 12 , 20
° °
INSTALLATION INSTRUCTIONS
Record the information found on the cable tag for future reference.
Part No._________________Date___________Frequency________kHz
°
Important
Read the instructions completely before proceeding with the
installation. These instructions supersede any other instructions in
your instrument manual if they differ.
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 metal 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 Angle
Be sure your transducer model matches the deadrise angle of
your hull at the mounting location. See the top of the transducer
insert for the tilt angle (Figure 1). Measure the deadrise angle of
your hull at the selected mounting location (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°
0° model
Copyright © 2006 Airmar Technology Corp.
transom view
Figure 2. Deadrise angle of the hull
Copyright © 2005 Airmar Technology Corp.
plastic
low profile
P617V housing
12° model 20° model
Figure 1. Top of insert
slope of hull
deadrise angle
parallel to waterline
Smart Sensor
™