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DANGER
Make sure that you completely understand how to use your Z1, as well
as all of the warnings and cautions outlined in this user manual, before
taking your Z1 into the water. It is recommended that you use your Z1 in a
closed water or pool environment before using it in open water.
Before using your Z1 in a scuba diving situation, you need to fi rst take a
scuba training course and obtain a certifi cation card issued by one of the
internationally acknowledged dive training organizations. (You can use
the Z1 while in training under the guidance of an instructor.)
Before using the Z1 for a Nitrox (Enriched Air Nitrox, or EANx) dive, you
need to complete a Nitrox dive training course. Otherwise, do not use your
Z1 for Nitrox diving. (EANx is a mixed gas containing 22%-100% O
.)
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For safety's sake, when diving with your Z1, also carry a secondary com-
puter, diver's watch and/or depth gauge as a backup.
If a "decompression stop violation" warning and/or an "out of measure-
ment range" warning is displayed on your Z1, cancel your dive immediate-
ly and pay close attention to any changes in your physical condition.
If your Z1 fails at any time during a dive, that dive must be terminated
immediately, and dive training-prescribed surfacing procedures must
be initiated (including a slow ascent and a 3- to 5-minute safety stop at
15 ft/5m).
If you notice any abnormal performance with your Z1, stop using it imme-
diately and contact the dealer where you purchased your Z1.
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