Furuno FEA-2107 Operator's Manual page 509

Alarm number 2008:
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KALMAN FILTER REQUIRED THAT THE
SPEED OF THE OWN SHIP IS MORE THAN
SPEED LIMIT SET IN ECDIS
INSTALLATION PARAMETERS. IF ROUTE
STEERING WAS NOT USED, THEN KALMAN
FILTER HAS BEEN SET AUTOMATICALLY
OFF BY THE SYSTEM.
Alarm number 2009:
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POSITION SOURCE OF OWN SHIP PRIMARY
POSITION HAS BEEN CHANGED
AUTOMATICLLY TO ANOTHER SOURCE THAN
BEFORE. VERIFY NEW SOURCE.
Alarm number 2010:
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DGPS POSITION SENSOR USED IN FILTER
POSITIONING HAS CHANGED ITS
OPERATION MODE FROM NORMAL TO
DIFFERENTIAL OR FROM DIFFERENTIAL TO
NORMAL
Alarm number 2011:
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IF POSITION ALIGNMENT IS USED THEN
USER IS REMINDED OF IT EVERY 30 MIN.
Alarm number 2013:
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SOG AND/OR COG DATA FROM SENSORS IS
UNRELIABLE. VERIFY AND CHOOSE
SPEED/COURSE AND POS SENSORS IN
'SENSORS' FUNCTION. IF REASON IS
FAST MANOUEVRE, LIMIT CAN BE
INCREASED BY SETTING "MAX RATE OF
TURN" LIMIT OVER 150 DEG/MIN.
FILTER: SPEED BELOW
POSITION SOURCE CHANGED
FILTER:POS SOURCE CHANGE
CHARTALIGN:OVER 30 MINUTES
SOG&COG DATA UNRELIABLE
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30. Alarms
30-7