JRC JMR-7210-6X - Page 175

8-15 Section 8 Functions of the ECDIS (Option)
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For more information about switching between range and scale, refer to "8.4.3 Switching
between scale and range (S-57/C-MAP only)".
Memo
Over Scale parmanentIndication
When the ship enters a different chart, an over-scale activated if the displayed chart is more
than double in size than the original data. The vertical lines as seen in the figure below will be
displayed on the "chart" to notify lower chart accuracy and clarity. The vertical lines will not be
displayed if the size has been made larger (double or more) through proper operation.
An “Over Scale” parmanentIndication is displayed in the alert display area.
Case in which an Over Scale parmanentIndication is not displayed (1)
When a single cell is displayed in full screen with the scale exceeding double the compilation scale, the
Over Scale warning line is not displayed. However, an “Over Scale” parmanentIndication is displayed.
Notification line at Over Scale
GB4X0000
GB5X01NW
GB5X01SW
GB5X01NE
GB5X01SE
GB5X
02SE
M_CSCL
GB4X0000＝1/52,000、M_CSCL＝1/45,000
GB5Xnnnn＝1/25,000
（A)
（B)
When the display area comprises a single
compilation scale, AP (OVSC01) drawing is
not performed.
（B)
Display scale
1/10,000
（A)
Display scale
1/10,000
Display example of the display area
(within the screen frame)