Set up before departure •
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• 43
Reset distance counter and logs
Use this button to open
Voyage record menu.
Press Voyage Record push button and select Reset Logs + Counter to reset them.
Verify Datum
Datum is used to select between different models of the earth. It is essential that you use Datum in a consistent way.
If you use paper charts together with electronic chart material, it is recommended that you use the same Datum as
your current paper chart to avoid misalignment between your electronic system and points taken or plotted on your
current paper chart.
Once you have selected a datum, all numerical latitude-longitude position values are presented in your selected
datum.
Note: If you use ARCS raster chart material the rasterized charts contain some rasterized position information.
These positions like scales in the edges of ARCS charts are true only if you have selected native datum of that ARCS
chart. Normally this is the natural situation, because you use ARCS together with equal official paper chart and
because you have selected as datum the datum of your equal official paper chart.
To select datum proceed as follows:
1. Press Initial setting push button.
2. Select desired datum from a list box of Datum.
3. Selected datum is shown on the Upper information area.
Selected datum is shown on Upper information area (in this case WGS 84)
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