Furuno FCV-587, Operator'S Manual

Page: 21 / 83

1. OPERATION
14
2. Select [Bottom Disc.] and press the EN-
TER key.
3. Select [Graphic] or [Probability] and press
the ENTER key.
4. Select [Legend] and press the ENTER
key.
5. Select [Off] or [On] and press the ENTER
key to show or hide the hardness legend.
To turn off the bottom discrimination display,
select [Off] at step 3 and press the
ENTER
key.
1.17 Alarms
This fish finder has six fish alarms and two
navigation alarms. When the conditions of an
alarm are met, the audio alarm sounds and
the alarm icon (flashing) appears at the top
right corner on the display. The audio alarm
may be silenced by pressing any key. The
alarm icon remains on the screen until the
cause of the alarm is removed or the offend-
ing alarm is disabled.
Description of alarms
z Fish alarms
The ACCU-FISH
TM
alarm alerts you when a
fish of the specified length is in the alarm
zone. Available when the ACCU-FISH
TM
fea-
ture is active.
The fish school alarm alerts you to a school
of fish in the set alarm zone.
The bottom fish alarm is given when a fish is
within the specified distance from the bottom.
Available when the bottom lock display is ac-
tive.
The water temperature alarm * alerts you
when the water temperature is within (inside
alarm) the alarm range set or under/over (out-
side alarm) the range set.
The bottom type alarm alerts you when the
bottom type (rock, sand, mud, gravel) match-
es the bottom type selected. Available when
the bottom discrimination display is active.
The bottom alarm alerts you when the bot-
tom echo (displayed in red or reddish brown)
is within the alarm range set.
z Navigation alarms
The speed alarm* alerts you when your
boat’s speed is within (inside alarm) or under/
over (outside alarm) the preset speed.
There are two types of arrival alarms *: [In-
side] and [Outside]. The [Inside] alarm alerts
you when you are within the specified range
from a waypoint. The [Outside] alarm alerts
when your boat travels a specific distance
from the location at the activation of the alarm.
* Requires navigator or applicable sensor.
How to activate a fish alarm
Multiple fish alarms (ALARM1 - ALARM5, de-
fault names) can be activated. In this case,
the audio and visual alarms are released
when all alarm conditions are met. For exam-
ple, the Bottom Type alarm is set for [Rock]
and the Bottom alarm is set for 10-20 feet.
Then, if the system judges the bottom to be
rock and the depth to the bottom is 10-20 feet,
the audio and visual alarms are released. The
alarms are not released if only one condition
is met.
1. Open the menu, select [Alarm] and press
the ENTER key.
2. Select an alarm among [ALARM1] -
[ALARM5] (default alarm names) and
press the
ENTER key.
AUTO_R G:AF AUTO_R G:AF LF LF x1 x1 Alarm icon*
(flashing)
: Fish alarm
: Speed alarm
: Arrival alarm
* Appears when alarm
condition is met.