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GEO AIR OPERATING MANUAL
© Oceanic, 2022
Doc. No. 12-5673-r05 (10/11/22)
DTR (DIVE TIME REMAINING)
The GEO AIR constantly monitors No Decompression status and O2 Accumulation, and will display whichever time is the least amount available
as DTR on the No Decompression Dive Main screen. The Time being displayed will be identified by the NO DECO (no decompression time) or O2
icons.
NO DECOMPRESSION
No Decompression is the maximum amount of time that you can stay at your present depth before entering decompression. It is calculated based on
the amount of nitrogen absorbed by hypothetical tissue compartments. The rates each of these compartments absorb and release nitrogen is math-
ematically modeled and compared against a maximum allowable nitrogen level.
Whichever compartment is closest to this maximum level is the controlling compartment for that depth. Its resulting value NDC (no decompression)
will be displayed. It will also be displayed graphically as the TLBG Bar Graph, see Bar Graphs below.
As you ascend, the TLBG Bar Graph segments will recede as control shifts to slower compartments. This is a feature of the decompression model that
is the basis for multilevel diving, one of the most important advantages that Oceanic dive computers offer.
DTR is
No Decompression
O2 MIN (OXYGEN TIME REMAINING)
When set for nitrox operation, O2% (Oxygen Saturation) during a dive is displayed on an ALT screen as a percentage of allowed saturation identi-
fied by the O2% icon. The limit for O2% (100%) is set at 300 OTU (Oxygen Tolerance Units) per dive or 24 hour period. See the chart at the back
of this manual for specific times and allowances. O2% and O2 time values are inversely related; as the O2% value increases the O2 time value
decreases.
When the O2 time value becomes less than the No Decompression calculations for the dive, DTR (Dive Time Remaining) will be controlled by O2%
and the O2 time value will be displayed as the DTR on the Dive Main screen, identified by the O2 icon.
% O
2
Saturation
DTR is O2 time
DIVE ALT 2
DIVE MAIN
BAR GRAPHS
The GEO AIR features two specific bar graphs.
1. The one on the left represents nitrogen loading. It is referred to as the TLBG (Tissue Loading Bar Graph).
2. The one on the right represents ascent rate. It is referred to as the VARI Bar Graph.
Ascent Rate
Nitrogen Loading
Содержание GEO
Страница 7: ...7 GEO AIR OPERATING MANUAL Oceanic 2022 Doc No 12 5673 r05 10 11 22 GETTING STARTED...
Страница 13: ...13 GEO AIR OPERATING MANUAL Oceanic 2022 Doc No 12 5673 r05 10 11 22 WATCH MODE...
Страница 20: ...20 GEO AIR OPERATING MANUAL Oceanic 2022 Doc No 12 5673 r05 10 11 22 DIVE FEATURES...
Страница 28: ...28 GEO AIR OPERATING MANUAL Oceanic 2022 Doc No 12 5673 r05 10 11 22 DIVE SURFACE MODE...
Страница 44: ...44 GEO AIR OPERATING MANUAL Oceanic 2022 Doc No 12 5673 r05 10 11 22 DIVE MODE...
Страница 53: ...53 GEO AIR OPERATING MANUAL Oceanic 2022 Doc No 12 5673 r05 10 11 22 GAUGE MODE...
Страница 57: ...57 GEO AIR OPERATING MANUAL Oceanic 2022 Doc No 12 5673 r05 10 11 22 FREE MODE...
Страница 64: ...64 GEO AIR OPERATING MANUAL Oceanic 2022 Doc No 12 5673 r05 10 11 22 REFERENCE...
Страница 68: ...68 GEO AIR OPERATING MANUAL Oceanic 2022 Doc No 12 5673 r05 10 11 22 TECHNICAL DATA...
Страница 75: ...75 GEO AIR OPERATING MANUAL Oceanic 2022 Doc No 12 5673 r05 10 11 22 GEO AIR DIVE COMPUTER OPERATING MANUAL...