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Cause
Conditions to raise
Lost HDG
Heading data from
primary sensor is
lost.
Lost POSN
Position data from
primary sensor is
lost.
Marine
The ship is near a
Farm/Aquacultur
Marine
e
Farm/Aquaculture.
Warning or caution as
selected by user.
Default Setting is
Caution.
Military Practice
The ship is near a
Area
Military Practice
Area.
Warning or caution as
selected by user.
Default Setting is
Caution.
NON-WGS84
DATUM of POSN is
not WGS84.
Obstruction
The ship is near an
Obstruction.
Offshore
The ship is near an
Production Area
Offshore Production
Area.
Warning or caution as
selected by user.
Default Setting is
Caution.
Outside Anchor
Own ship exited from
Watch Area
the dragging anchor
monitoring area.
If Outside Anchor
Watch Area warning
is not acknowledged
for 2 minutes, the
warning escalates to
Outside Anchor
Watch Area alarm.
Over 85
Own ship position is
Degrees
85 degrees or more.
Pipeline Area
The ship is near a
Pipeline Area.
Appendix A Alert, Maintenance INFO and Permanent information
Conditions to rectify
Heading data from
-
primary sensor can
be received.
Position data from
-
primary sensor can
be received.
The ship moved
Check ahead
away from Marine
on the DISP
Farm/Aquaculture.
The ship moved
Check ahead
away from Military
on the DISP
Practice Area.
DATUM of POSN is
DATUM of
WGS84.
POSN is not
WGS84
The ship moved
Check ahead
away from
on the DISP
Obstruction.
The ship moved
Check ahead
away from Offshore
on the DISP
Production Area.
Own ship entered
Check
the dragging anchor
position on
monitoring area.
the DISP
Own ship position is
System
less than 85
performance
degrees.
is reduced.
The ship moved
Check ahead
away from Pipeline
on the DISP
Area.
A-6
Detail
Cate
Required
gory
standard
B
IEC 61174
B
IEC 61174
A
IEC 61174
A
IEC 61174
B
IEC 61174
A
IEC 61174
A
IEC 61174
A
IEC 61174
A
IEC 61174
A
IEC 61174
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