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Altitude diving – SUUNTO D6I User Manual

Page 116

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No-decompression time limits (mins) for various depths (ft)

for the first dive of a series

Personal Mode / Altitude Mode

Depth

(ft)

P2/A2

P2/A1

P2/A0

P1/A2

P1/A1

P1/A0

P0/A2

P0/A1

P0/A0

6
5
4

10
8
6

18
13
10

7
5
4

11
9
7

19
15
11

8
5
4

13
10
7

21
17
12

90
100
110

3
3
2
2

5
4
3
3

8
6
5
4

3
3
2
2

5
4
4
3

9
7
6
5

4
3
3
2

6
5
4
3

10
8
6
5

120
130
140
150

10.2.3. 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 nitro-
gen allowed by the mathematical model of the dive computer are reduced according
to the lower ambient pressure.

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