Eagle Z-5000 User Manual

The 20
degree
transducer is almost
always
the best to use
in fresh
water,
while the 8
degree
transducer is used
mostly
in salt water. In a
deep
water
environment,
(300
feet—fresh
water,
100 feet—salt
water)
the
narrow cone
angle
is more desireable because it can
penetrate
to much
deeper depths
since the sound
energy
is concentrated in a smallerarea.
Both
8
degree
and 20
degree
transducers
give
accurate bottom
readings,
even
though
the bottom
signal
is much wider on
the 20
degree
model because
you
are
seeing
more of the bottom.
Remember,
the
shallow
edge
of the
signal
shows
you
the true
depth.
The rest of the
signal
tells
you
whether
you
are over
rocks, mud,
etc.
Transducers on salt water boats need to be
painted
with a
thin
coat
of
anti-foulant
paint
to
prevent organisms
from
growing.
If
unchecked,
barnacles
and other marine
growth
will cause a decrease in the
transducer's
sensitivity.
Do not use a metal based anti-foulant
paint
as it
will decrease
the transducer's
senstivity.
There are
special
anti-foulant
paints
specifically designed
for transducers.
They're readily
available
at
most marine
dealers.
SIGNAL
INTERPRETATION
Because
your
Z-5000 is both
extremely
sensitive and
powerful,
it can
give you
an accurate
picture
of the kind of bottom over which
your
boat
is
passing.
A bottom of firm
sand, gravel, shell,
or hard
clay
returns a
fairly
wide
signal.
If the automatic
sensitivity
is
turned
off,
and the
signal
narrows
down,
then it means that
you
have moved over
a mud bottom
because mud absorbs the sound wave and returns
a weak
signal.
Turn
up
the
sensitivity.
If
you
have the automatic
senstivity
turned
on,
watch
the
sensitivity
bar As the boat
passes
over the mud
bottom,
the Z-5000 will
automatically
increase the
sensitivity
to maintain a
good
bottom
signal.
The
sensitivity
bar will
help you
in
determining
if the bottom
is
soft
or
hard. If it increases while in the same
depth
of
water,
then the boat has
moved over a soft bottom. If it
decreases,
then it is over a
hard bottom. Of
course,
as the water
depth
increases or
decreases,
the
sensitivity
will
also
change.
Portable Transducer
The
portable
transducer is attached to the transom of the boat
by
means of a suction
cup.
The transducer should be mounted on an area
of the transom that is free from bubbles while the boat is
running.
This is
important
because air bubbles cause cavitation noise which is
displayed
on the Z-5000 as random dots.
Assemble the transducer as shown in
Figure
3. Make certain to tie one
end of the cord
provided
with the transducer to the boat and the other
end
to the transducer bracket This will
prevent
the loss of the transducer
should
it come off.
Clean
the chosen area of the transom before
setting
the suction
cup.
Once the
position
has been
determined,
moisten the suction
cup
and
attach
it
as
firmly
as
possible.
The suction
cup
should be mounted
just
above the bottom
edge
of the
hull,
which allows the transducer to be in
the water
at all times.
Big
rocks or
stumps
on a smooth
bottom send back
signals
above the
bottom level
signal.
The
height
of the
signal depends
on the
target's
height.
If
you
watch as
you approach
a
post
or a tree
stump,
it will be
clearly
visible as a short line
extending
above the bottom
signal.
Figure
3
Brush
usually
lies on the bottom and shows
up
as
clumps rising
above
the bottom
signal.
Brush
signals
look similar to
large
rocks,
however their
signal
is not as
strong
as rock.
p
17
6
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Eagle Z-5000 Specifications

General

Brand	Eagle
Model	Z-5000
Category	Sonar
Language	English