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· Chart Alarms
Lines
For User Chart Line use option Danger Line in Line sheet.  Without this selection Line of User Chart is not used for
Chart Alarm.  The dangerous line is drawn red instead of dark yellow.
In Line sheet of User Chart
you can select which lines are
included Chart Alarm by
selecting Danger Line check
box.
Areas
For User Chart Areas use option Danger Area in Area sheet.  Without this selection Area of User Chart is not used
for Chart Alarm.  The boundary of dangerous area is drawn red instead of dark yellow.
In Area sheet of User Chart
you can select which areas
are included Chart Alarm by
selecting Danger Area check
box.
See figure below for behaviour of dangerous Symbol, Line and Area in Chart Alarm check.
Presentation of 
Dangerous Line
Presentation of 
Dangerous Symbol
Presentation of 
Dangerous Area