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1 Diving at Reduced Risk with Aladin
®
Pro Ultra
IV Uwatec
®
Aladin
®
Pro Ultra
American
– You MUST follow the ascent rates as indicated by the Aladin
®
Pro Ultra and if the computer should fail
for any reason, you must ascend at a rate of no greater than 30 feet per minute.
– All divers using dive computers to indicate or determine decompression status must use their own diving
computer.
– On any given dive, both divers in a buddy pair must follow the most conservative dive computer for that
particular dive.
– You MUST be familiar with all signs and symptoms of decompression sickness before using the Aladin
®
Pro Ultra! 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
between the onset of symptoms and the treatment for decompression sickness.
– Always observe the visual and acoustic alarm signals of the Aladin
®
Pro Ultra. Avoid situations of increa-
sed risk which are marked with a warning sign in this operating manual.
– Never dive the Aladin
®
Pro Ultra to the limits. Neither the Aladin
®
Pro Ultra nor any other diving computer
or decompression table should be pushed to its limit. Give yourself a margin of safety by always leaving
at least a few minutes in the “no-stop“ box before making your ascent.
1.3 Minimizing risk on repetitive dives
With consecutive repetitive dives, there will be excess nitrogen in the body due to the accumulation of
nitrogen on the preceding dives. Depending on the length of the surface interval, there could even be
gaseous nitrogen (microbubbles) in your body. This accumulation of both absorbed as well as gaseous
nitrogen in the body can greatly increase the risk of decompression sickness on subsequent dives. That risk
can be minimized.
– Respect the rules for the first dives.
– Wait until <CNS O
2
LIMIT> is less then 40%.
– Match gas mixture to the intended dive.
– Descend less deep for the repetitive dive than for the previous dive.
– Plan for a minimum surface interval of three to four hours.
– Do not attempt to repetitive dive if the <Atn> is visible on the display.
– Plan a day without diving once a week.
– Repetitive dives after exchanging the dive computer: Wait at least 24 hour before you start with the
repetitive dive.
IV
