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XTC-100
GLOSSARY (continued)
OceanLog™ - An Oceanic name for a PC interface hardware/software package.
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.
Partial Pressure - The proportion of the total pressure contributed by a single gas in a mixture of gases.
PDPS - Abbreviation for Pre Dive Planning Sequence
PO2 - Abbreviation of Partial Pressure of Oxygen (the proportion of total pressure of a gas mixture contributed by oxy-
gen)
Pre Dive Planning Sequence
™
- A display of available dive times at 10 foot. (3 meter) intervals from 30 to 160 feet. (9 to 48
meters) used when dive planning.
Repetitive Dive - Any dive that takes place within 12 hours of a previous dive.
Safety Stop - A depth at which a diver may choose, but is not required, to pause during ascent to allow absorbed nitrogen to
escape naturally from the tissues.
Smart Glo™ - An Oceanic name for an instrument backlight feature sensitive to light intensity.
Square Wave Dive - A type of dive profile where the entire dive is spent at one depth between descent and ascent.
Tissue - See Compartment.
Tissue Compartment - See Compartment.
Tissue Loading Bar Graph
™
- A graphic display of simulated nitrogen absorption on Oceanic dive computers.
TLBG - Abbreviation for Tissue Loading Bar Graph.
Transducer - An electro-mechanical device in a dive computer that acts as a depth or pressure sensor.
Transition Period - The first 10 minutes of surface time after ascending above 3 feet (1 meter) from a dive.
VARI - Abbreviation for Variable Ascent Rate Indicator.
Variable Ascent Rate Indicator
™
- A display on the dive computer that shows ascent rate as a bar graph alongside a color–
coded indicator (similar to a speedometer).
