How To Set A Target Alarm Zone; How To Stop The Audio Alarm - Furuno 1835 Operator's Manual

1. DESCRIPTION OF OPERATION
1.19.1

How to set a target alarm zone

The following procedure shows you how to set a target alarm zone.
1. Press the TARGET ALARM key to activate ALARM 1 or ALARM 2. Press the
TARGET ALARM key to change the active ALARM between No. 1 and No. 2. The
indication of the currently active ALARM is in a rectangle at the upper-right corner
of the screen.
2. Use the Cursorpad to move the cursor to the position A and press the ENTER key.
3. Move the cursor to the position B and press the ENTER key. The rectangle that
shows alarm status indication at the upper-right corner of the screen disappears.
Target alarm zone 1
(Length of dash
and interval for
alarm zone 2 are
longer than alarm
zone 1.)
Note 1: To set a 360-degree guard zone, set the position B in the same bearing as the
position A.
Note 2: When the target alarm zone is not within the range in use, the indication
"ALM1(or 2)_RNG" replaces "ALM1(or 2)_IN(or OUT)" in the alarm status area.
(When the target alarm zone is within the range of full off-centering, the indication
does not change.) Select a range which displays the target alarm zone.
1.19.2

How to stop the audio alarm

When a target enters (or exits) the target alarm zone, the target flashes and the alarm
sounds. The alarm message appears at the bottom of the screen. To stop the audio
alarm, press any key. When the target enters (or exits) the target alarm zone again,
the audio alarm sounds.
1-22
A
How to set a target alarm zone
A L M 1 _ I N
Alarm status
A L M 2 _ O U T
+
B
Cursor