5
Safety considerations
Uwatec
®
Aladin
®
Air Z O
2
English
her insufficient decompression calculations or a too low calculation of the oxygen-toxicity!
– Always check the diving limits considering the oxygen content and standard sports diving procedures
(decompression sickness, oxygen toxicity).
– Do not dive deeper than 40 metres.
– The danger of nitrogen narcosis has to be taken into consideration for all dives regardless of the gas mix-
ture. The Aladin
®
Air Z O2 gives no warning about this.
– On all dives with the Aladin
®
Air Z O2
, make a safety stop for at least one to three minutes within the
3 to 5 metre zone.
– Always make the deepest dive of the day first when repetitive dives are planned, and for each dive make
sure that the deepest portion of that dive is done at the beginning of the dive.
– If your diving cylinder is equipped with a reserve or “J“-type valve, make certain that the reserve func-
tion is in an open (down) position. Failure to keep the reserve open will result in the improper calculati-
on of the dive data which depends on tank pressure.
– All divers using dive computers to plan dives and indicate or determine decompression status must use
their own computer which they take with them on all dives.
– If the Aladin
®
Air Z O2
fails at any time during the dive, the dive must be terminated, and appropriate
surfacing procedures should be initiated immediately.
– On any given dive, all divers in a buddy group must follow the most conservative dive computer for that
particular dive.
– Repetitive dives after exchanging the dive computer: Wait at least 24 hour before you start with the
repetitive dive.
– You MUST be familiar with all signs and symptoms of decompression sickness before using the Aladin
®
Air Z O2! Seek IMMEDIATE treatment for decompression sickness should any of these signs or symptoms
occur after a dive! There is a direct correlation between the effectiveness of treatment and the delay bet-
ween the onset of symptoms and the treatment for decompression sickness.
– Always observe the optical and acoustic alarm signals of the Aladin
®
Air Z O2. Avoid situations of increa-
sed risk which are marked with a warning sign in this operating manual.
– If the ascent arrow appears in the lower display window, start ascending.
– If the flashing ascent arrow appears in the lower display window, start to ascend immediately.
– See also page 10, 74-76, 100.
