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ECDIS User manual
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When the vessel is approaching a special condition area during the voyage.,it would be
alarmed.Special condition area containing as following:
You can select the alarmed area according to the navigation needs, and the alarm will be
automatically alarmed when the vessel approaches the selected area.
Alarm priority:
The alarm priority is setting the priority of the alarm.
Alert escalation:
The alert escalation is setting to change the warning to alarming. After setting time, the
warming will be upgraded to an alarm and the alarm status bar will change.
Dragging alarm:
After the dragging alarm is turned on, the vessel 's current position coordinates would be
used as the center point. When the current position of the vessel is more than the value of
the distance,it would be alarmed.