Navman THROUGH HULL AND IN-HULL Installation Manual - 3 In-Hull Depth Transducer
8
Through hull & In-hull transducer installation manual
NAVMAN
3 In-hull depth transducer
3-1 Positioning an in-hull transducer
This transducer will be glued to the inside of
the bottom of the boat. Select a position for the
transducer that has a smooth fl ow of clear water
under the transducer at all times. This means
that the transducer should be ahead of any keel,
hull projections, hull openings, paddle wheel
transducers, propellers or propeller wash. If
the bottom of the boat is painted and the boat
has been used, do not mount the transducer
where the paint is eroded (an indication of
turbulence).
In addition, position the transducer:
as close to the middle line of the hull as
possible and as deep as possible
with suffi cient space inside the hull for
access and wiring
where the inside surface of the hull is fl at and
smooth and there will be no gaps between
the face of the transducer and the hull.
Planing or displacement boat
Sailing boat
Suitable locations
for transducer
Up to 15°
Part # - Europe
27948
Part # - Rest of World
AA002161
Material
Plastic
Connector
RCA phono
Max. hull thickness
¾" (20 mm)
Cable length
26.2 ft (8 m)
One in-hull transducer is available, a depth transducer.
Caution
In-hull depth transducers are only suitable for solid GRP hulls up to ¾" (20 mm) thick, without air
pockets, beads or voids. They are not suitable for wooden, metal or sandwich hulls. Compared to
other types of transducer, in-hull depth transducers generally have lower performance because
power is absorbed in the hull.
No
Yes
Ideally the transducer should be rotated so
that its axis is vertical, however it can be up
to 15° off vertical.
The face of the transducer is angled. When
fi tting the transducer, rotate the transducer so
that the axis of the transducer is as close to
vertical as possible.