Design Aeris, Reference Manual

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GLOSSARY
AERIS Computer Interface (ACI) - An AERIS name for a PC interface hardware/software package.
Air Dive - A dive conducted using air (approximately 21% oxygen & 79% nitrogen) as the breathing gas.
Air Time Remaining - A graphic display of remaining dive time based on a calculation of cylinder pressure and the
diver's breathing rate and depth.
Algorithm - A step by step mathematical formula designed to accomplish a particular result (i.e., Dive Time Remain-
ing).
Altitude Dive - A dive made at an elevation above sea level (> 3,000 feet / 915 meters elevation) with NDLs adjusted.
Ascent Rate - The speed that a diver ascends toward the surface.
ATR
- An AERIS abbreviation for Air Time Remaining.
Audible Alarm - A computer emitted tone that alerts the diver to potential danger.
Caution Zone (CZ) - The sections of a bar graph that indicate a diver’s proximity to limits.
Clean Dive - A dive preceded by 24 hours of no diving activity.
CNS - Abbreviation for the Central Nervous System of the body.
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 AERIS dive computers have no direct relation to human tissues).
DCS - Abbreviation for decompression sickness, i.e., “the bends”.
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 electro mechanical device that converts water pressure into an electrical signal, that is converted
to a visual depth display.
Diagnostic Mode - The first display seen on dive computers after initial activation during which time a self–check for
internal faults is performed.
Display
- A visual readout of information.
Dive Log Mode - A display of previous dive information.
Dive Time Remaining - A display of the time before a diver must surface based on no decompression status, oxygen
accumulation status, or Air Time Remaining.
DTR - An AERIS abbreviation for Dive Time Remaining.
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