Scale Bar - Sperry Marine Visionmaster FT ECDIS User Manual

Basic Operation of ECDIS

Scale Bar

At most scale ratios a vertical bar indicating the
current scale in nautical miles (NM) is shown on
the lower left side of the screen. The scale of the
bar changes dependent on the following scale
ratios selected:
1. At scale ratios between 1:8,000 to
1:50,000 the bar shows the length of one
NM, divided into 10 equally spaced units
2. At scale ratios between 1:80,000 to 1:5,000,000 the
bar shows the length of 10 NM divided into 5 equally
spaced units
3. At scale ratios of 1:5,000 and below, and 1:8,000,000
and above the NM bar is not shown.
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ECDIS User Guide
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