Filter
Top Products
1. OPERATION
13
About the bottom discrimination display
How to activate the bottom discrimina-
tion display
Note 1: Auto range (AUTO_R) is automatical-
ly turned on when the bottom discrimination
display is activated.
Note 2: The bottom discrimination is inopera-
tive when the transducer type is selected to
600 W or 1 kW (FCV-587 only), on the [Trans-
ducer] menu.
1. Open the menu, select the [Display]
menu, select [Bottom Disc.] and press the
ENTER key.
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 discrimination display provides
an estimate of bottom composition. Actual
composition may be different.
• The 600 W transducers and triducers that
support the bottom discrimination feature
are 520-5PSD, 520-5MSD, 525-5PWD,
525STID-MSD, 525STID-PWD.
• The 1 kW transducers that support the bot-
tom discrimination feature are 50/200-1T
and 50/200-12M.
• The high and low frequencies are alternately
transmitted, regardless of current display se-
lection. The TX interval is slower when this
feature is active.
• Operating environment:
- Depth: 16 to 328 ft
- Speed: 10 knots or less
• This feature uses the range from the boat’s
draft; therefore, enter the ship’s draft. See
page 26.
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.