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No-decompression time limits (mins)for variousdepths (ft)for thefirst
dive of a series
Personal Mode / Altitude ModeDepth
(ft)
P2/A2P2/A1P2/A0P1/A2P1/A1P1/A0P0/A2P0/A1P0/A0
9
7
6
11
9
7
15
11
9
11
9
7
15
11
9
18
14
11
15
11
9
18
14
11
22
17
13
90
100
110
5
4
4
3
6
5
4
4
8
6
5
4
6
5
4
4
8
6
5
4
9
7
6
5
8
6
5
4
9
7
6
5
10
9
7
6
120
130
140
150
9.2.3. Altitude diving
The atmospheric pressure is lower at high altitudes than at sea level. After traveling
to a higher altitude, you will have additional nitrogen in your body, compared to the
equilibrium situation at the original altitude. This "additional" nitrogen is released
gradually over timeand equilibriumis restored.It isrecommended thatyou acclimatize
to a new altitude by waiting at least three hours before making a dive.
Before high-altitude diving,the instrumentmust beset to theAltitude Adjustmentmode
to adjust the calculations for the new altitude. The maximum partial pressures of
nitrogen allowed bythe mathematicalmodel ofthe dive computerare reducedaccording
to the lower ambient pressure.
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