10
Aladin
®
Pro Ultra …
I Uwatec
®
Aladin
®
Pro Ultra
1 Introduction
What can further increase your diving pleasure?
The good feeling of having the highest possible
safety and freedom to move. A dive computer
which constantly controls the data of your dive and
your individual behaviour meets these require-
ments. Aladin
®
Pro Ultra watches over the nitrogen
and oxygen toxicity of your body without interrup-
tion. With Aladin
®
Pro Ultra you dive more safely
than ever before. In addition, Aladin
®
Pro Ultra
offers an unmatched comfort in carrying and ope-
ration. Aladin
®
Pro Ultra gives you increased safety
due to its calculation model.
2 More Safety in Diving
Nitrox is a gas mixture consisting of nitrogen and
oxygen. The kind of air used for diving with com-
pressed air is the same as the normal air of the
earth‘s atmosphere (78% nitrogen, 21% oxygen
and 1% inert gases). Therefore, normal air is also
Nitrox!
When talking of Nitrox as the breathing gas for
diving, it concerns a mixture with a higher share of
oxygen. A higher share of oxygen (and automati-
cally the reduction of the share of nitrogen) has the
advantage of lengthening the no-stop phase (or
reducing the decompression phase), since less
nitrogen is dissolved in the diver‘s body during the
dive.
But the higher share of oxygen in the Nitrox-mixtu-
re also causes additional physiological problems by
the toxic effects at a higher partial pressure of oxy-
gen (ppO
2
). When breathing oxygen at a higher
partial pressure, two kinds of oxygen toxicity can
occur:
• CNS damages:
Symptoms of poisoning occurring at short notice in
the central nervous system (CNS). Such symptoms
are: irritations of the respiratory organs, sickness,
headache, pulmonary oedema, cramps, uncons-
ciousness. The symptoms occur at a ppO
2
of
essentially more than 1 bar and depend on the
length of exposure and on the partial pressure of
oxygen.
• Damages of the lungs:
Symptoms of pulmonary poisoning occuring in
the long run. The symptoms occur at a ppO
2
from
0.5 bar and higher and with terms of exposure in
the range of hours/days.
