SUUNTO DX - Manual (Page 40)

Table 5.2.
Interpretation Sound pattern Instructional beep
Start ascending Ascending
Start descending Descending
Change gas Descending-
ascending
The visual information on the dive computer display is shown during the alarm breaks
in order to save battery.
Table 5.3. Audible and visual alarm types
Alarm reason Alarm type
PO
2
value is greater than the adjusted value. Current
depth is too deep for the gas in use. You should imme-
diately ascend or change to a gas with a lower oxygen
percentage.
High priority alarm followed
by "Start ascending" beep,
repeated for the maximum of
three minutes. The PO
2
value
blinks.
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