Power
Connections
The Z-5000
operates
from a 12 volt
battery system.
The
power
cable can
be attached to an
accessory
or
power
buss,
but if
you
have
problems
with electrical
interference
(random
dots or lines that show
whenever the
boat's
engine
or an
accessory
is
on),
then attach
the cable
directly
to
the
battery.
The
power
cable
has two
wires,
red is the
positive
lead
and black is
negative
or
ground.
An
in-line fuse holder
containing
a 3
amp
fuse is
supplied
with the
Z-5000. This attaches to the red wire
on the
power
cable with the
crimp
connector. The other end of the fuse
holder
attaches to the
battery
or
accessory
buss. If the cable
is not
long
enough,
splice
ordinary
#18
gauge
wire onto it. Be certain that the
fuse holder is
as close to the
power
source
(battery
or
accessory buss)
as
possible.
This
protects
the
power
cable and
your
Z-5000 in the event
of a short.
The Z-5000 is
protected
from
accidental
polarity
reversals and will
not be
harmed if the wires are
reversed.
(However,
the unit will not
work until the
correct
polarity
is
applied.)
SURFACE CLUTTER
The
markings
at the
top
of the screen
represent
the surface of the
water
They
can extend
many
feet below the
surface which can interfere
with
fish
signals
or other
targets.
These
markings
are called "surface
clutter"
and are caused
by algae, plankton,
bait
fish,
and air
bubbles
created
by
boat wakes or wave action.
These marks
are normal and can be seen at
any
time
during
the
year
_________ SENS!TtI/!TY -
4&?O
1-
VOWER tPLE
4%;
:
/
S.,
—
SURFACE
CLUTTER
-RED
¶\DLDER
J
Figure
16
WATER TEMPERATURE AND
THERMOCLINES
Water
temperature
has an
important—if
not
controlling
influence
upon
the activities of
all fish. Fish are cold blooded and their
bodies are
-SIDE .
always
the
temperature
of the
surrounding
water.
During
the
winter,
OF sgTER'l Figure
1
colder water
slows down their metabolism so that
they
need about a
fourth as much food
as
they
consume in the
summer.
3
20
-8CM
3PCVTER
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