Operation Manual

®
88
GLOSSARY
The following are diving terms that you should become familiar with. Some apply specifically to the DataPlus.
Air Dive - A dive conducted using air (approximately 21% oxygen & 79% nitrogen) as the breathing gas.
Algorithm - A step-by-step mathematical formula designed to accomplish a particular result (i.e. Dive Time
Remaining in the DataPlus).
Altitude Dive - A dive made at an elevation above sea level where a different set of no decompression tables is
used (higher than 2000 feet/610 meters with the DataPlus).
Ascent Rate - The speed that a diver moves vertically toward the surface.
Boot - A protective rubber covering that surrounds an instrument module.
C.Z. - Abbreviation for Caution Zone
Caution Zone - The yellow section of a bar graph that gives a visual warning of a diver’s proximity to projected
limits.
Ceiling - See decompression ceiling
Clean Dive - A dive preceded by 24 hours of no diving activity.
Compartment - A term applied to the hypothetical modeling of nitrogen absorption in the tissues (more
accurate than the term 'tissue' because dive computer models have no direct relation to human tissues).
CNS - Abbreviation for the Central Nervous System of the body.
DataLink™ - A quick disconnect device that facilitates removal of the high pressure instrument hose (and
instrument console) from the regulator first stage for protection, transport, or storage.
DCS - Abbreviation for decompression sickness, i.e. 'the bends'
DECO - Abbreviation for Decompression.