Furuno GP-3700F, Operator'S Manual

Page: 172 / 224

11. ECHO SOUNDER
11-24
11.17 Alarms
The echo sounder has four alarms: fish alarm (normal), fish alarm (bottom lock), fish
alarm (fish size) and bottom discrimination alarm. When the conditions of an alarm are
violated, the alarm icon and alarm name appear at the bottom left of the display* and
the audio alarm sounds. You can silence the audio alarm by pressing the
CANCEL
key. The alarm icon remains on the screen until the cause of the alarm is cleared or
the alarm is deactivated. When the conditions of an alarm are violated again, the alarm
icon appears and the audio alarm sounds.
For audio alarm type, see section 8.1.
Note 1: When multiple alarms occur, violated alarm types alternately appear at the
bottom of the display.
Note 2: *: The fish alarm (bottom lock) is available only on the bottom lock display.
The alarm icon and alarm name appear at the bottom of the right single display.
11.17.1 Fish alarm (normal)
The fish alarm (normal) sounds when a fish echo is within the preset alarm range, thus
the fish alarm can alert you when fish echoes are within a certain depth range. Note
that the sensitivity of the fish alarm can be set on the [FISH ALARM LEVEL] menu of
the [ECHO SOUNDER SYSTEM SETTING] menu. For details, see section 11.18.
1. Press the MENU key to open the main menu.
2. Select [6. ALARM SETTINGS].
Alarm marker
Alarm icon
Violated alarm type