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1. DESCRIPTION OF OPERATION

1-22

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.

How to set a target alarm zone

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.

Cursor

Target alarm zone 1

(Length of dash

and interval for

alarm zone 2 are

longer than alarm

zone 1.)

Alarm status

ALM1_IN

ALM2_OUT

Furuno 1835 User Manual

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