2
Safety considerations
I UWATEC
®
Aladin
®
ONE
You must carefully read and understand this entire manual before using your Aladin
®
ONE
.
Diving has many inherent risks. Even if you follow the instructions of this
manual in a careful manner, it is still possible that you may be seriously injured
or die from decompression sickness, oxygen toxicity or some other inherent
risk of scuba with Nitrox or compressed air. Unless you are fully aware of these
risks and are willing to personally accept and assume responsibility for those
risks, do not use Aladin
®
ONE
.
Guidelines for the use of Aladin
®
ONE
:
The following guidelines for using Aladin
®
ONE
are derived from the latest medical research and the
recommendations of the American Academy of Underwater Sciences for diving with diving computers.
Following these guidelines will greatly increase your safety while diving, but cannot guarantee that
decompression sickness or oxygen toxicity will not occur.
• Aladin
®
ONE
is designed for dives with Nitrox (max.50%O
2
) and compressed air (21%O
2
) only. Do not
use Aladin
®
ONE
for dives made with other mixed gases.
• It is absolutely necessary to check the set mixture before each dive and to compare it to the gas mixture
currently used. Always remember: setting an incorrect mixture carries an inherent risk of decompressi-
on sickness and/or oxygen toxicity! Maximum deviation from the measured mixture must not exceed
1% O
2
. An incorrect gas mixture can be lethal!
• Only use Aladin
®
ONE
with open circuit breathing systems. Aladin
®
ONE
must be set for a determined gas
mixture.
• Only use Aladin
®
ONE
for diving with an independent breathing apparatus. Aladin
®
ONE
is not designed
for long term exposures with Nitrox.
• Always observe the visual signals. Avoid situations of increased risk which are marked with a warning
sign in this operating manual.
• Aladin
®
ONE
has a ppO
2
warning. The limit is set at 1.4 bar ppO
2
max.
• Frequently check the "oxygen clock" (CNS O
2
). Ascend and finish the dive if the CNS O
2
exceeds
75%.
• Never dive deeper than the Maximum Operating Depth (MOD) pertinent to the gas mixture in use.
• Always check the diving limits considering the oxygen content and standard sports diving procedures
(decompression sickness, oxygen toxicity).
• In accordance with the recommended maximum diving limit of all instructional agencies, do not dive
deeper than 40 metres/130 feet.
• The danger of nitrogen narcosis has to be taken into consideration. Aladin
®
ONE
gives no warning about
this.
• On all dives, with or without dive computer, make a safety stop for at least 3 minutes at 5 metres (15
feet).
• 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 Aladin
®
ONE
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 at 5 metres /15 ft) should be initi-
ated immediately.
• Comply with the ascent rate and carry out any decompression stop required. If the computer should
fail for any reason, you must ascend at a rate of 10m (30 feet) per minute or less.
• On any given dive, both divers in a buddy pair must follow the most conservative dive computer for
that particular dive.
• Never dive without a buddy. Aladin
®
ONE
does not substitute for a dive buddy.
• Only make dives that are appropriate to your level of dive training. Aladin
®
ONE
does not increase your
knowledge of diving.
• Always dive with back-up instruments. Make sure that you always use back-up instrumentation inclu-
ding a depth gauge, submersible pressure gauge, digital bottom timer or dive watch, and have access
to decompression tables whenever diving with a dive computer.
WARNING
