In order to assure optimal decompression even at higher altitudes, the 10 ft decompression stage is divi-
ded into a 13 ft stage and a 7 ft stage (the pescribed decompression depths are, in sequence, 7 ft, 13 ft,
20 ft, 30 ft).
Aladin
®
Pro Ultra can be used as decompression computer in case of an emer-
gency up to an altitude of 13123 ft. If atmospheric pressure is below 8.99 psi
(altitude higher than 13123 ft above sea level), no decompression information
is displayed. Dive-plan-mode can no longer be started, since no decompressi-
on information is available. Beside the display of the altitude section 3, <HI>
(=high) appears, telling the diver that he will not get any decompression infor-
mation for the dive. Oxygen-toxicity is further calculated.
Even very small differences in the pressure receptors can cause an indication of
different altitude sections of two dive computers at the same altitude on the
fringes of the altitude ranges. These differences are not meaningful and do not
interfere with the functions of Aladin
®
Pro Ultra. But if an altitude section is
displayed at sea level or the altitude read outs of two computers differ by more
than one altitude section (e.g. section 2 instead of 0), there may be a defect of
the computer. In this case, send your computer back to your retailer for testing.
Diving while at altitude can considerably increase the risk of decompression
sickness. Do not undertake high altitude diving without being specifically
trained in the special techniques of such diving.
52
6 Diving in Mountain Lakes
III Uwatec
®
Aladin
®
Pro Ultra
depth
dive time
max. depth
deco info
WARNING