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GLOSSARY
Air time
Altitude dive
Ascent rate
ASC RATE
Ascent time
ASC TIME
Ceiling
Ceiling zone
Central nervous system toxicity
CNS
CNS%
Compartment
DAN
DCI
The amount of dive time remaining, based on a calculation of cylinder
pressure and ambient pressure and present air consumption.
A dive made at an elevation greater than 300 m/1000 ft above sea level.
The speed at which the diver ascends toward the surface.
Abbreviation for ascent rate.
The minimum amount of time needed to reach the surface on a decom-
pression stop dive.
Abbreviation for ascent time.
On a decompression stop dive, the shallowest depth to which a diver may
ascend based on computed nitrogen load.
On a decompression stop dive, the zone between the ceiling and the
ceiling plus 1.8 m/6 ft. This depth range is displayed with two arrows
pointing toward each other (the "hour glass" icon).
Toxicity caused by oxygen. Can cause a variety of neurological symptoms.
The most important of which is an epileptic-like convulsion which can
cause a diver to drown.
Abbreviation for central nervous system toxicity.
Central nervous system toxicity limit fraction. Also note Oxygen Limit
Fraction
See "Tissue group".
Abbreviation for Divers Alert Network.
Abbreviation for decompression illness.
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