Operation Manual
37
Partial Pressure - The proportion of the total pressure contributed by a single gas in a mixture of gases.
PDC - An Oceanic abbreviation for Personal Dive Computer.
PO2 - Partial pressure of oxygen. The proportion of total pressure of a gas mixture contributed by oxygen.
Pre Dive Planning Sequence
™
(PDPS) - A display of available dive times at 10 FT (3 M) intervals from 30 up to 190
FT (9 up to 57 M) 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 ni-
trogen 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 prole where the entire dive is spent at one depth between descent and ascent.
Tissue (or Tissue Compartment) - See Compartment.
Tissue Loading Bar Graph
™
- A graphic display of simulated nitrogen absorption on Oceanic dive computers.
TLBG - An Oceanic 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 rst 10 minutes of surface time after ascending to 2 FT (0.6 M) from a dive.
Variable Ascent Rate Indicator
™
- A graphic display that represents ascent rate as a bar graph (part of the Graphic
Diver Interface).
VARI - An Oceanic abbreviation for Variable Ascent Rate Indicator.
GLOSSARY (continued) -