Suunto VYTEC DS manual Nitrox, Noaa, No DEC Time, Olf, Otu

Half-time	After a change in ambient pressure, the
	amount of time required for the partial
	pressure of nitrogen in a theoretical
	compartment to go half-way from its
	previous value to saturation at the new
	ambient pressure.
HP	Abbreviation for high pressure (= cylinder
	pressure).
Multi-level dive	A single or repetitive dive that includes
	time spent at various depths and whose
	no-decompression limits are therefore not
	determined solely by the maximum depth
	attained.
NITROX	In sports diving refers to any mix with a
	higher fraction of oxygen than standard air.
NOAA	United States National Oceanic and
	Atmospheric Administration.
No-decompression time	The maximum amount of time a diver may
	remain at a particular depth without having
	to make decompression stops during the
	subsequent ascent.
No-decompression dive	Any dive which permits a direct,
	uninterrupted ascent to the surface at any
	time.
NO DEC TIME	Abbreviation for no-decompression time limit.
OEA = EAN = EANx	Abbreviation for Oxygen Enriched Air Nitrox.
OLF	Abbreviation for Oxygen Limit Fraction.
OTU	Abbreviation for Oxygen Tolerance Unit.
Oxygen Tolerance Unit	Is used to measure the Whole-Body-Toxicity.
Oxygen Limit Fraction	A term used by SUUNTO for the values
	displayed in the Oxygen Toxicity bargraph.
	The value is either the CNS% or the OTU%.

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