Technical information

12
2 Aladin
®
Air Z O
2
– More Safety in Diving
I Uwatec
®
Aladin
®
Air Z O
2
1. Only dive with nitrox or SCR if you have been trained thoroughly by a reco-
gnised agency.
2. Only use the pressure transmitter with open breathing systems. Aladin
®
Air Z O
2
must be set for a determined gas mixture. In partially-open and in
closed circulation-systems, the gas mixture in the breathing loop can vary
considerably from the mixture in the tank(s).
3. For dives with an SCR always use an Oxy2.
4. Aladin
®
Air Z O
2
when used with Oxy2 does not show the tank pressure nor related warnings.
Check the pressure gauge frequently.
5. Only use Aladin
®
Air Z O
2
for diving with an independent breathing apparatus. Aladin
®
Air Z O
2
is
not designed for long-term exposures with Nitrox.
6. If a pressure transmitter is used the Aladin
®
Air Z O
2
always calculates based on the gas mixture
set by the user. It is absolutely necessary to check the set mixture before each dive and to compare
it to the gas mixture actually used. Maximum deviation from the measured mixture must not exceed
1% O
2
. A wrong gas mixture can be lethal!
7. Aladin
®
Air Z O
2
disposes of a pp O
2
-warning, the default-limits of which are set at 1.5 bar pp O
2
max.
This limit can be adjusted via MemoMouse/Data Talk in the range of 1.2 to 1.95 bar. An alternati-
on of the pp O
2
max to higher than 1.6 bar is risky and we do not recommend it.
8. Frequently check the „oxygen-clock“ (CNS O
2
%), especially in the range higher than 1.5 bar pp
O
2
.
Close the dive if the CNS O
2
% exceeds 75%.
9. Make sure you have a sufficiently long surface interval, just as when diving with compressed air. Oxy-
gen also needs sufficient time to leave the body. Go on the next dive only when the CNS O
2
% has
dropped below 40%.
10.Aladin
®
Air Z O
2
is a personal instrument like any other diving computer. This also applies when
diving with compressed air (21% oxygen) between two nitrox-dives. Aladin
®
Air Z O
2
can be adjus-
ted to compressed air and then also includes the calculation of the CNS O
2
% in the same way as
with any other nitrox-dive.
11.Always remember: setting a wrong mixture causes either insufficient decompression calculations or
a too low calculation of the oxygen-toxicity!
WARNING