SUUNTO Gekko User Manual

Page 55

TABLE 6.2. NO-DECOMPRESSION TIME LIMITS (MIN) FOR VARIOUS

DEPTHS [FT] FOR THE FIRST DIVE OF A SERIES

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 di ving, the instrument must be set to the Altitude Adjust-

ment mode to adjust the calculations for the new altitude. The maximum partial

pressures of nitrogen allo wed by the mathematical model of the di ve 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 surf ace 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.