Owner's Manual

Out of calculation limits

Suunto uses state of the art memory and microprocessors, however, there are limita-

tions to the memory capacity of decompression calculations. Therefore Suunto must

limit the maximum saturation of tissues on Suunto HelO2 and limit the maximum bottom

times on dives performed using the dive computer. The bottom times include decom-

pression calculation. While it is highly unlikely that the following bottom times are

confronted by open-circuit divers, it is important to warn you of their possibility.

The same limits are used in the Suunto Dive Planner and so repetitive dives will be

checked while planning a dive because a dive plan must be created in any case.

Table 5.2. Possible decompression dive times

First deep-

stop

CeilingBottom timeDepthO

2%/He%

Gas mix

46 m33 m250 min60 m20/35Tx

65 m50 m260 min80 m15/50Tx

80 m61 m120 min100 m12/60Tx

96 m73 m90 min120 m10/60Tx

Descent at the rate of 10 m/min is included in the time. The times allow for a safe ascent

using the bottom gas all the way to the surface without exceeding tissue pressures.

If a diver violates these limits, the dive computer goes to an error mode and the rest

of the dive must be conducted using the diveplan on the slate.