Operation Manual

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Elapsed Dive Time - The total time spent underwater during a dive between 5 FT (1.5 M) on initial descent to 2 FT
(0.6 M) on nal ascent.
FO2 - The fraction (percent / 100) of oxygen (O2) in the breathing gas mixture.
Graphic Diver Interface
™
- Feature of Oceanic dive computers that indicate the diver's status (bar graphics, icons,
graphic displays).
Icon - a small pictorial representation of an operational mode or information.
Integrated Dive Computer - A dive computer that monitors and displays cylinder pressure in addition to no decom-
pression information.
LCD - Abbreviation for liquid crystal display, an easily viewed low voltage display usually found on dive computers
Maximum Depth - The deepest depth attained during a dive.
Mode - A specic set of functions in a dive computer.
Multi-level Dive - A type of dive prole where the diver spends various times at different depths (opposite of a “Square
Wave” dive prole).
NDC - An Oceanic abbreviation for No Decompression Dive Time Remaining.
Nitrox - A nitrogen-oxygen breathing gas mixture that contains a higher fraction of oxygen than air.
Nitrox Dive - A dive conducted using nitrox (22 to 99% O2) as the breathing gas.
No Deco Time Remaining - The amount of dive time remaining based on no decompression status.
No Decompression (No Deco) - Any part of a dive where the diver can surface without requiring a decompression
stop.
O2 Bar Graph - A visual representation of oxygen accumulation on a dive computer display.
O2BG - An Oceanic abbreviation for O2 Bar Graph.
Oceanglo® - An Oceanic name for an instrument backlight feature.
OceanLog™ - An Oceanic name for a PC interface hardware/software package.
OTR - An Oceanic abbreviation for O2 Time Remaining.
OTU - Abbreviation for oxygen tolerance unit. A Hamilton's Repex method term for oxygen dose.
Out of Range - The point at which a dive computer can no longer supply correct dive information.
Oxygen Tolerance - Dose or exposure to the physiological affects of elevated levels of oxygen.
Oxygen Toxicity - The adverse physiological affects of exposure to elevated levels of oxygen.
GLOSSARY (continued) -
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