5
Safety considerations
Uwatec
®
Aladin
®
Air Z
English
5 metre zone.
– Always make the deepest dive of the day first when repetitive dives are planned, and for each successi-
ve 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 is in an
open (down) position. Failure to keep the reserve open will result in the improper calculation of dive data
depending 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.
– Repetitive dives after exchanging the dive computer: Wait at least 24 hour before you start with the
repetitive dive.
– If the Aladin
®
Air Z fails at any time during the dive, the dive must be terminated, and appropriate sur-
facing 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.
– Always observe the optical and acouctic alarm signals of the Aladin
®
Air Z. Avoid situations of increased
risk for decompression sickness which are marked with a warning sign in this operating manual.
– You MUST follow the ascent rates as indicated by the Aladin
®
Air Z and if the computer should fail for
any reason, you must ascend at a rate of no greater than 10 metres per minute.
– You MUST be familiar with all signs and symptoms of decompression sickness before using the Aladin
®
Air Z! 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.
– Ensure that you have enough Air for the Ascent. Do not use the RBT to the limit if prolonged ascents or
an increased rate of breathing (currents…) are expected.
– See also page 54-55 and 84.
