Glossary - Uwatec Galileo HUD User Manual

8.

GLOSSARY

AVG
CCR
CNS O2
DESAT
DIL
Dive Time
Gas
Local Time
Max Depth
MB
MB Level
MOD
Nitrox
NO FLY
NST
O2
O2%
OC
PDIS
ppO2
ppO2 max
PMG
90
Average Depth. Calculated from the beginning of the dive or from the
time of reset.
Closed Circuit Rebreather. A breathing device that absorbs the
carbon dioxide of a diver's exhaled breath to permit the recycling, or
"rebreathing," of the unused oxygen content of each breath.
Central Nervous System Oxygen toxicity.
Desaturation Time. The time needed for the body to completely eliminate
any nitrogen taken up during diving.
Diluent. The gas used to dilute the oxygen in CCR mode.
The time spent below a depth of 0.8m/3ft.
Refers to the main gas that is set for the ZH-L16 ADT MB or ZH-L16 GF
algorithms.
Current time in the local time zone.
Maximum depth attained during the dive.
Microbubble. Microbubbles are tiny bubbles that can build up in a diver's
body during and after a dive.
One of 6 levels (L0-L5), provided by the HUD's ZH-L16 ADT algorithm.
Maximum Operating Depth. This is the depth at which the partial pressure
of oxygen (ppO2) reaches the maximum allowed level (ppO2max). Diving
deeper than the MOD will expose the diver to unsafe ppO2 levels.
A breathing mix made of oxygen and nitrogen, with the oxygen
concentration being 22% or higher. In this manual, air is considered a
particular type of nitrox.
Minimum amount of time a diver should wait before taking a plane or
climbing to high altitudes.
No-Stop Time. The amount of time a diver can stay at the current depth
and still make a direct ascent to the surface without having to perform
decompression stops.
Oxygen.
Oxygen concentration used by the HUD in all calculations.
Open circuit.
Profile Dependent Intermediate Stop is an additional deep stop which is
suggested by the HUD at a depth where the 5th, 6th or 7th compartment
starts off-gassing.
Partial pressure of oxygen. This is the pressure of the oxygen in the
breathing mix. It is a function of depth and oxygen concentration. A
ppO2 higher than 1.6bar is considered dangerous.
The maximum allowed value for ppO2. Together with the oxygen
concentration, it defines the MOD.
Predictive Multigas. Lets you carry additional breathing gases in addition
to your main breathing gas.
GALILEO HUD USER MANUAL