Operation Manual
6
SYMBOLS
Symbols used in this manual and the PDC operating manuals to bring your attention to
information having various degrees of importance are -
NOTE: Represents important information.
CAUTION: Denotes instances that if not handled properly could result in
damage to the PDC.
WARNING: Emphasizes conditions and procedures that could result in
serious injury or death if not corrected or followed properly.
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NOTE: Information in this manual relating to nitrox and oxygen features only
applies if you are using a PDC specically set for dives using nitrox as a
breathing gas.
Throughout this manual and the operating manuals, reference is made to the term
'breathing gas'. The rational being that most Oceanic PDCs can be used for 'air' dives or
'nitrox' dives. For clarity these terms are defined as -
Breathing Gas - the gaseous mixture breathed during a dive.
Air - a breathing gas that contains approximately 21% oxygen and 79% nitrogen
(nature's common nitrogen-oxygen mixture).
Nitrox - a nitrogen-oxygen breathing gas that contains a higher fraction of oxygen than
Air (22 to 99% O2).