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No-decompression time limits (mins) for various depths (ft) for the first
Depth
(ft)
P0/A0
90
22
100
17
110
13
120
10
130
9
140
7
150
6
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 time and equilibrium is restored. It is recommended that you acclimatize
to a new altitude by waiting at least three hours before making a dive.
Before high-altitude diving, the instrument must be set to the Altitude Adjustment mode
to adjust the calculations for the new altitude. The maximum partial pressures of
nitrogen allowed by the mathematical model of the dive computer are reduced according
to the lower ambient pressure.
Personal Mode / Altitude Mode
P0/A1
P0/A2
18
15
18
14
11
14
11
9
11
9
8
9
7
6
7
6
5
6
5
4
5
dive of a series
P1/A0
P1/A1
P1/A2
15
11
11
9
9
7
8
6
6
5
5
4
4
4
P2/A0
P2/A1
15
11
9
11
9
7
9
7
6
8
6
5
6
5
4
5
4
4
4
4
3
P2/A2
95
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