5
Safety considerations
Uwatec
®
Aladin
®
Pro Ultra
English
remember: Setting a wrong mixture carries an inhered risk of decompression sickness and/or oxygen
toxicity!
– It is essential to check the set mixture before each dive and to compare it to the gas mixture to be used.
Always remember: Setting a wrong mixture causes either insufficient decompression calculations or a
too low calculation of the oxygen-toxicity!
– Always check the diving limits considering the oxygen content and standard sports diving procedures
(decompression sickness, oxygen toxicity).
– Do not dive deeper than 40 metres.
– The danger of nitrogen narcosis has to be taken into consideration for all dives regardless of the gas mix-
ture. The Aladin
®
Pro Ultra gives no warning about this.
– On all dives with the Aladin
®
Pro Ultra, make a safety stop for at least one to three minutes within the
3 to 5 metre zone.
– Always make the deepest dive of the day first when repetitive dives are planned, and for each dive make
sure that the deepest portion of that dive is done at the beginning of the dive.
– 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.
– If the Aladin
®
Pro Ultra fails at any time during the dive, the dive must be terminated, and appropriate
surfacing 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.
– You should not dive for a period of twenty-four hours before activating the Pro Ultra (or any borrowed
or rented dive computer) to use it for diving.
– 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 sym-
ptoms 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 optical 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.
– See also page 11, 54, 55, 83.
