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GLOSSARY
The following are diving terms to become familiar with. Some apply specifically to the Profile.
Algorithm - A step-by-step mathematical formula designed to accomplish a particular result (i.e. Dive Time Remaining in the Profile).
Altitude Dive - A dive made at an elevation above sea level (2,000+ ft. / 610+ m.) where a different set of no decompression tables is used .
Ascent Rate - The speed that a diver ascends toward the surface.
Ascent Rate Indicator - A graphic representation of vertical ascent rate (speed) displayed alongside a color coded indicator.
Boot - A protective rubber covering that surrounds an instrument module.
BT - Abbreviation for Bottom Time (Elapsed Dive Time).
Caution Zone - The yellow section of a bar graph that gives visual warning of a divers proximity to projected limits.
Ceiling - See decompression ceiling.
Clean Dive - A dive preceded by 24 hours of no diving activity.
CLr - Abbreviation for Clear (reset).
Competitive Dive - A dive conducted for profit or prize.
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).
DCS - Abbreviation for decompression sickness (i.e., the bends).
DECO - Abbreviation for Decompression.
Decompression Ceiling - The shallowest depth a diver may reach upon ascent without risking DCS.
Decompression Stop - The depth(s) at which a diver must pause during ascent to allow absorbed nitrogen to escape naturally from the tissues.
Depth Sensor - An electromechanical device that converts water pressure into an electrical signal, that is converted to a visual depth display.
DESAT - Abbreviation for Desaturation Time.
Diagnostic Mode - The first display seen on Sherwood Scuba dive computers after initial activation during which time a selfcheck for internal faults and
battery voltage is performed.
Display - A visual readout of information.
Dive Time Remaining - A display of time allowed before a diver must surface based on no decompression status.
Elapsed Dive Time - The total time spent underwater during a dive between 5 feet (1.5 meters) on initial descent to 3 feet (1 meter) on final ascent.
H2O - A graphic indicating that the unit is still wet after 2 hours on the surface.
