Bedienungsanleitung Lowrance X-55 (Seite 5 von 20) (Englisch)

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3. The water

may

deeper

than the sonar's

ability

to find the bottom. If

the sonar

can't find the bottom

signal

while it's in the

automatic

mode,

the

digital

will flash

continuously.

may change

the

range

to limits

far

greater

than the

water

you

are in. If this

happens, place

the unit in the manual

mode,

then

change

the

range

to a realistic

one,

(for

example,

0-1 00

feet)

and increase the

sensitivity.

you

move into shallower

water,

a bottom

signal

should

appear.

4. Check the

battery voltage.

If the

voltage drops,

the unit's

transmitter

power

also

drops, reducing

its

ability

to find the bottom or

targets.

Bottom

echo

disappears

high

speeds

or erratic

digital reading

weak bottom echo while boat is

moving

1. The transducer

may

be in turbulent water.

It must be mounted in a

smooth

flow of water in order for the

sonar to work at all boat

speeds.

Air

bubbles in the water

disrupt

the sonar

signals,

interfering

with its

ability

find the

bottom or other

targets.

The technical term

for this is Cavitation.

2. Electrical

noise from the boat's motor can interfere

with the sonar. This

causes the sonar

automatically

increase its Discrimination

or noise

rejectionfeature.

Thiscan causethe unitto

eliminateweakersignals

such

as fish or even

structure from the

display. Try using

resistor

spark plugs

routing

the sonar unit's

power

and transducer cables

away

from other

electrical

wiring

on the

boat.

No fish arches when the Fish ID feature

is off:

1. Make certain transducer is

pointing

straight

down. This is the most

common

problem

if a

partial

arch is

displayed.

See the Fish Arch section

your

owner's manual for more

information.

2. The

sensitivity may

not be

high enough.

In order

for the unit to

display

afish

arch,

it has to

be able to receive the fish's

echo from the time it enters

the cone

until it leaves. If the

sensitivity

is not

high enough,

the unit

displays

the

fish

only

when it is in the center of the cone.

3. Use the

Zoom feature. It is much easier to

display

fish arches when

zoomed in on a small

range

of water than a

large

one. For

example, you

will have much

better luck

seeing

fish arches with a

30 to 60 foot

range

than a 0 to 60

foot

range.

This

enlarges

the

targets,

allowing

the

display

to show much more detail.

4. The boat must be

moving

at a slow

trolling speed

see fish

arches. If the boat is

motionless,

fish

stay

in the

cone, showing

on the

display

straight

horizontal lines.

TRANSDUCER CONNECTIONS

See

the transducer owner's manual included

with the unit for

complete

transducer installation instructions.

SIDE

SCAN

The

X-55 has

optional

side-scan

capability.

To use this

feature,

you

must

purchase

the ScanPac

accessory.

To install

it,

follow the instructions

enclosed with

the ScanPac.

See the "Side Scan

Operation"

section in this manual

for information on

using

the side-scan

feature.

SPEED/TEMPERATURE/DISTANCE

LOG

To use the

speed,

temperature,

and distance

log

features,

you

must install

optional speed/temperature

sensor. Lowrance manufactures

a thru-

hull sensor/transducer combination

unit and a transom mount

speed/

temp only

sensor.

KEYBOARD

The

keyboard

has

keys arranged

in two vertical

columns

plus

a horizontal

row at the bottom.

The

keys

in the left column

are used to enter numbers

and menu

selections. The

keys

in the

right

column

activate the windows

feature and the

basic sonar functions. The menu

key

in the bottom

right

corner of

the

keyboard

activates the first menu

page.

The

keys along

the

bottom of the

screen are used to activate the alarm

menu, stop

the

chart,

and make menu selections

with the arrow

keys.

WINDOWS

This

key gives you

access to the windows

mode,

which lets

you

customize

displays.

SENS

Press this

key

adjust

the unit's

sensitivity.

RANGE

This

key

lets

you adjust

the

range

when the unit is

in the manual

mode.

ZOOM

The X-55

gives

you

2X and 4X zoom

capability

with this

key.

AUTO

This turns the automatic

feature off and on.

Press this

key

to show the

menus and

gain

access to

most

functions.

CLEAR

This

key

clears menus

and erases entries from the screen.

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