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1. OPERATION
• When Fish Symbols or Fish Info are
enabled, 50 kHz and 200 kHz beams are
transmitted alternately even if a single fre-
quency mode is in use.
• Fish within the zero line area are not mea-
sured.
• To reduce error, the detection area should
be approx. 6 to 330 feet from the surface.
• With the inside-hull transducer, signal
attenuation is different between 50 kHz and
200 kHz. Therefore, a fish may not be
detected or the fish size indicated may be
smaller than actual size.
• In case of a fish school, echoes overlap one
another, so the margin of error will be
greater.
• The fish symbol indication is off when the
bottom is not displayed on the screen.
1.16 Alarms
The FCV-620/585 have six conditions which
generate both audio and visual alarms: bottom
alarm, normal fish alarm, bottom lock fish alarm,
water temperature alarm, speed alarm and
arrival alarm. (The water temperature, speed
and arrival alarms require appropriate sensors.)
To silence the buzzer press any key.
Bottom alarm: The bottom alarm alerts you
when the bottom displayed in red or reddish
brown echo is within the alarm range set. To
activate the bottom alarm the depth must be dis-
played.
Fish (normal) alarm: The fish (normal) alarm
tells you when an echo above a certain strength
(selectable) are within the preset alarm range.
See page 13 for alarm level setting.
Fish (bottom lock) alarm: The fish (bottom
lock) alarm sounds when fish are within a cer-
tain distance from the bottom. Note that the
bottom lock display must be turned on to use
this alarm.
Water temperature alarm: The water tempera-
ture alarm alerts you when the water tempera-
ture is within (inside alarm) the alarm range set
or under/over (outside alarm) the range set.
Speed alarm: The speed alarm alerts you when
the speed is within (inside alarm) or under/over
(outside alarm) the preset speed.
Arrival alarm: The "Inside" arrival alarm alerts
you when you approach to the destination way-
point by the distance set. Alternatively, the "Out-
side" arrival alarm alerts when you go away
from the preset range from a certain position.
Activating an alarm
1. Press the MENU/ESC key to open the menu.
2. Use
or
to choose Alarm and press the
ENTER key.
The colors of
the circles in
the Alarm
menu denote
colors of
corresponding
alarm range
markers.
Menu
location
indicator
Alarm menu
3. Use
or
to choose an alarm desired and
press the ENTER key.
Off
On
Fish and
Bottom Alarm
Alarm options
4. Use
or
to choose alarm type:
Off: Alarm off
On: Alarm on
Inside: Alarm generated when speed, water
temperature or arrival distance is within the
range set.
Outside: Alarm generated when speed,
water temperature or arrival distance is out-
side the range set.
5. Press the ENTER key.
For Arrival Alarm, go to step 8.
6. Use
to choose From and press the
ENTER key.
12
Alarm
Bottom
: Off
From
:
0ft
Span
:
10ft
Fish
: Off
From
:
0ft
Span
:
10ft
Fish-B/L
: Off
(Only at B/L mode)
From
: 0.0ft
Span
: 1.0ft
Fish Level
: Medium
Temperature : Off
From
: 65.0°F
Span
:
1.0°F
Speed
: Off
From
: 0.0kt
/
/
/
: Select
[ENTER]
: Enter
[MENU]
: Back
Off
Inside
Outside
Temp, Speed and
Arrival Alarm
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