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5 The Calculation Model ZH-L8 ADT
I Uwatec
®
Aladin
®
Pro Ultra
English
desaturate with less risk of decompression sickn-
ess.
• The calculation of microbubbles results in altered
ascent instructions. If microbubbles are assumed
to be present based on the data used by the
I
Aladin
®
Pro Ultra, the ascent rate to the surface is
reduced to 7 metres/minute. This will help pre-
vent the formation of microbubbles in the arteri-
al circulation and minimizes formation of micro-
bubbles in the venous circulation after the dive.
5.2 Advantages
On the first dives following responsible diving pro-
cedures, a diver using the Aladin
®
Pro Ultra should
never require decompression stops, although a one
to three minute safety stop between 3 and 5 met-
res is recommended for every dive. If, however,
unplanned circumstances arise during the dive
which increase the risk of decompression, the
Aladin
®
Pro Ultra can, if closely followed, reduce
the risk of decompression sickness by increasing
decompression time. Some of the more common
risk situations are as follows:
• Repetitive dives, especially those deeper than 20
metres and those with short surface intervals.
• Repetitive diving over the course of several suc-
cessive days.
• Diving with increased workloads.
• Yo-yo diving (repeated descents and ascents to
the surface during a given dive).
• Flying within 24 hours after diving.
• Excessive ascent rate.
If a diver experiences any of these risk factors while
diving, the Aladin
®
Pro Ultra will add required
decompression time in order to help minimize the
risk of decompression sickness.
If signs or symptoms of decompres-
sion sickness occur after diving
with Aladin
®
Pro Ultra, seek IMME-
DIATE treatment at the nearest
recompression facility.
