Suunto Zoop [57/73] Altitude diving

Suunto Zoop [57/73] Altitude diving
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TABLE 6.2. NO-DECOMPRESSION TIME LIMITS (MIN) FOR VARIOUS
DEPTHS [FT] FOR THE FIRST DIVE OF A SERIES
Personal Mode / Altitude Mode
Depth
[ft]
P0/A0 P0/A1 P0/A2 P1/A0 P1/A1 P1/A2 P2/A0 P2/A1 P2/A2
30 - - 160 127 160 127 93 127 93 73
40 120 86 65 86 65 53 65 53 43
50 69 56 41 56 41 34 41 34 28
60 50 38 29 38 29 25 29 25 20
70 36 29 23 29 23 20 23 20 15
80 28 23 19 23 19 15 19 15 11
90 22 18 15 18 15 11 15 11 9
100 17 14 11 14 11 9 11 9 7
110 13 11 9 11 9 7 9 7 6
120 10 9 8 9 8 6 8 6 5
130 9 7 6 7 6 5 6 5 4
140 7 6 5 6 5 4 5 4 4
150 6 5 4 5 4 4 4 4 3
ALTITUDE DIVING
The atmospheric pressure is lower at high altitudes than at sea level. After traveling
to a higher altitude, the diver will have additional nitrogen in his body, compared
to the equilibrium situation at the original altitude. This “additional” nitrogen is
released gradually in time and equilibrium is reached. It is recommended that
you acclimate to the 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 pres-
sures of nitrogen allowed by the mathematical model of the dive computer are
reduced according to the lower ambient pressure.
As a result, the allowed no-decompression stop limits are considerably reduced.
SURFACE INTERVALS
The dive computer requires a minimum surface interval of 5 minutes between
dives. If a surface interval is shorter than 5 minutes, the next dive is treated as a
continuation of the previous dive.

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