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Multi-level Dive - A type of dive profile where the diver spends various times at different depths (opposite of a
“Square Wave” dive profile)
NO DEC - Abbreviation for No-decompression
NO DEC Time Remaining - The amount of dive time remaining based on no-decompression status
No-Decompression - Any part of a dive where the diver can surface without requiring a decompression stop
Out of Range - The point that a dive computer can no longer supply correct dive information
PDPS - Abbreviation for Pre Dive Planning Sequence
Pre Dive Planning Sequence
™
- A display of available dive times at ten foot 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 ab-
sorbed nitrogen to escape naturally from the tissues
Square Wave Dive - A type of dive profile where the entire dive is spent at one depth between descent and
ascent
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
VARI - Abbreviation for Variable Ascent Rate Indicator
Variable Ascent Rate Indicator
™
- A display on the PRODIGY that shows ascent rate as a bar graph alongside a
color–coded indicator (part of the Graphic Diver Interface)
