Permanent Warnings Of S57 Charts - Furuno FEA-2107-BB Operator's Manual

8. Vector Chart Material
Magnetic var.:
Amount of magnetic variation. A positive value indicates a change in an easterly direction and a negative value
indicates a change in a westerly direction.
Depth:
Unit of measurement for depth.
Height:
Unit of measurement for height above sea level (for example, clearance height).
8.2.3

Permanent warnings of S57 charts

Permanent warnings help you keep the S57 charts up-to-date and these are shown at the top left corner on the
screen. Only up-to-date S57 charts can be legal replacement for paper charts. Permanent warnings appear if the
system detects a condition that may cause the use of charts that are not up-to-date.
Note: The system can assist in keeping RENC-received charts up-to-date. For charts that have been loaded from
sources other than an RENC, the system is unable to know the exact up-to-date situation.
For further details see section 8.12 Chart Viewing
Dates and Seasonal Features of the Vector Chart.
You have loaded updates into your hard disk, but
these updates are not included in the SENC. The
name of the chart appears in orange in the chart
catalogue.
Perform SENC conversion for these charts. For
SENC conversion, see section 8.4.6 Using SENC
convert window to initiate SENC conversion.
For further details, see section 8.7.3 Knowing up-to-
date status of an RENC product list.
You have loaded an update that contained cancel
information for a chart, and you have chosen not to
remove the cancelled chart. This permanent
indication reminds you about your intended use of a
cancelled chart.
Consider removing the chart. For information on
how to remove S57 charts, see section 8.5.5
Removing an S57 chart cell from the system.
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