Furuno FCR-21x9-BB Operator's Manual page 344

20. ALERTS
The [Silence] button temporarily silences the buzzer. An alert remains on the list until
the cause for the alert is solved.
How the alert list is updated after acknowledgement, rectifying
When you acknowledge an alert, its display method on the [Alert] list changes accord-
ing to alert category and alert state. Acknowledged and rectified alerts are immediately
removed from the list.
Category of
No.
alert
1 Alarm
2
3 Warning
4
5 Alarm
6 Warning
7 Caution
8 Alarm
9 Warning
10 Caution
20-6
Alert state
Not acknowledged/
Not rectified
Not acknowledged/
Rectified
Not acknowledged/
Not rectified
Not acknowledged/
Rectified
Acknowledged/
Not rectified
Acknowledged/
Not rectified
Not rectified
Acknowledged/
Rectified
Acknowledged/
Rectified
Rectified
Display after
acknowledgement
5
8
6
9
–
–
–
–
–
–
Display after
rectifying
2
–
4
–
8
9
10
–
–
–