62 A-Series display - User reference manual
Chart scale
Use the Range key to change the scale of your chart view. When
you zoom in, you see a smaller area of the chart in more detail
(larger scale). When you zoom out, you see a greater area of the
chart in less detail (smaller scale).
The level of cartographic detail available at different scales varies:
some charts provide detail at smaller scales than others.
If you select a chart scale that does not provide cartographic detail
for your chosen area, the chart will use the most detailed level avail-
able for the surrounding area and stretch it to fit the selected scale.
This means that you will never have blank or hatched areas on your
screen. However, there could be some misalignment of objects
which cross the chart boundary in this area.
Alarms
With the appropriate equipment installed and powered up, the fol-
lowing alarms may be triggered in the chart application:
• System (anchor, timer, alarm clock and temperature)
• Navigation (arrival and off-track)
• Fishfinder
•AIS
• Weather
When an alarm is triggered, a buzzer sounds and a pop-up window
describing the alarm and how to clear it is displayed. In some cases,
appropriate action is taken automatically by the A-Series unit. For
example, following an arrival alarm, the next route leg is activated.
To configure alarms
1. Press and hold the PAGE/MENU button to open the Setup menu.
2. Select Alarm Setup.
3. Choose the appropriate sub-menu.
4. For detailed information about alarm configurations, see Alarm
Setup Menu on page 131.
81314-1_A Series Reference Guide.book Page 62 Thursday, August 28, 2008 9:23 AM
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