Operation Manual

61
4 Functions during the Dive
III Uwatec
®
Aladin
®
Air Z O
2
English
III
4.7 Oxygen fraction of the inspired gas mixture
The Oxy2 measures in the inhalation hose of a SCR the actual oxygen fraction
of the gas mixture. The measured value is transmitted every 5 seconds to the
Aladin
®
Air Z O
2
which displays the rounded (1%) value. See pagee 80.
Message: If the oxygen fraction is lower than 19% an acoustic alarm is
sent every 4 seconds, also the O
2
alarm triangle is flashing.
Response: Flush the SCR system and check the tank pressure!
If necessary change to the backup system.
Never let the O
2
fraction go below 19%! Danger of hypoxia!
4.8 Decompression information
No-stop time is displayed if no decompression stops are necessary. The arrow <NO STOP> is visible if no
decompression stops are necessary. The figures indicate no-stop time in minutes.
– No-stop display <99:> means remaining time of 99 minutes or
more.
– No-stop time is calculated on line and influenced by the actual
workload and current water temperature.
tank data
bar
%
tank data
bar
O
2
%
NO STOP
CNS O
2
LIMIT
depth dive time
max. depth deco info
DECOSTOP
O
2 2
% MIX% MIX