Glossary - Suunto DW141 User Manual

16 GLOSSARY

Term
Altitude dive
Ascent rate
Ascent time
CCR
Ceiling
CNS
CNS%
Compartment
DM5
Decompression
Decompression
range
DCS
Dive series
Dive time
What it means
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.
The minimum amount of time needed to reach the
surface on a decompression stop dive.
Closed-Circuit rebreather. Scuba that recycles all
exhaled gas.
On a decompression stop dive, the shallowest depth to
which a diver may ascend based on computed inert
gas load.
Central nervous system toxicity. Toxicity is 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.
Central nervous system toxicity limit fraction.
See "Tissue group".
Suunto DM4 with Movescount, a software for managing
your dives.
Time spent at a decompression stop, or range, before
surfacing, to allow absorbed nitrogen to escape
naturally from tissues.
On a decompression stop dive, the depth range
between the floor and the ceiling within which a diver
must stop for some time during ascent.
Decompression sickness/illness. Any of a variety of
maladies resulting either directly or indirectly from the
formation of nitrogen bubbles in tissues or body fluids,
as a result of inadequately controlled decompression.
A group of repetitive dives between which the dive
computer indicates some nitrogen loading is present.
When nitrogen loading reaches zero the dive computer
deactivates.
Elapsed time between leaving the surface to descend,
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