5
Safety considerations
Uwatec
®
Aladin
®
Pro Ultra
American
(decompression sickness, oxygen toxicity).
– Do not use the Aladin
®
Pro Ultra for planned decompression diving. The decompression algorithm con-
tained in the Aladin
®
Pro Ultra should be used only for emergency or unintended decompression.
– In accordance with the recommended maximum diving limit of all instructional agencies, do not dive
deeper than 130 feet.
– 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 Ultra, make a safety stop for at least 1 to 3 minutes within the 10 to 15 feet 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 Pro Ultra fails at any time during the dive, the dive must be terminated, and appropriate surfacing
procedures (including a slow ascent and a 3 to 5 minute safety stop) 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 Aladin
®
Pro Ultra (or any
borrowed or rented dive computer) to use it to plan or control your diving.
– You MUST follow the ascent rates as indicated by the Aladin
®
Pro Ultra, and should the computer fail
for any reason, you must ascend at a rate of no greater than 30 feet per minute.
– 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.
– Never dive the Aladin
®
Pro Ultra to the limits. Neither the Aladin
®
Pro Ultra, nor any other diving com-
puter 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.
– Avoid repeated ascents and descents (yo-yo diving) while using the Aladin
®
Pro Ultra.
– See also page 11, 54, 55, 83.
