37
2 Attention Messages and Alarms
III Uwatec
®
Aladin
®
Pro Ultra
American
III
2.2 Alarms
Alarms are given to the diver optically by flashing symbols, letters or figures and symbols. In addition, an
acoustic sequence in one frequency can be heard during the whole duration of the alarm.
An alarm occurs in the following situations:
Excessive ascent rate.
Reduce ascent rate.
See page 42, 56.
Oxygen toxicity
The oxygen toxicity reaches 100%. Start ascent at
once!
Oxygen toxicity reaching 100% can lead to dange-
rous neurological symptoms. See also page 45, 58.
Ignoring decompression stop
Descend to the prescribed decompression
depth at once! See also page 47, 57.
NO STOP
S
L
O
W
depth
dive time
max. depth
deco info
%
SPEED
h
ft
depth
dive time
max. depth
deco info
DECOSTOP
%
CNS O
2
LIMIT
depth
dive time
max. depth
deco info
O
2
% MIX
%
NO STOP
CNS O
2
LIMIT
WARNING
WARNING
WARNING