Section 8    Functions of the ECDIS (Option)  8-16 
 
Case in which an Over Scale parmanentIndication is not displayed (2) 
When multiple cells exist within the screen frame in the scale exceeding double the compilation scale, 
an Over Scale warning line is not displayed in cells other than the cell of the minimum scale. 
Warning display is performed and an “Over Scale” parmanentIndication is displayed. 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
8.4.2.3 Enlarging/reducing with the [Large]/[Small] buttons 
(RNC only) 
1 
Each time the [Large] button is clicked on, the chart is enlarged by one scale level 
(larger scale charts).   
Each time the [Small] button is clicked on, the chart is reduced by one scale level 
(smaller scale charts). 
 
 
   
[Large] button 
[Small] button