Suunto EON - Altitude Diving; Ascent Rate

Notification Explanation
Setpoint switched Setpoint switched automatically or manually on a
rebreather dive. See 4.28.3. Setpoints.
Custom setpoint Setpoint switched to custom setpoint on a rebreather
dive.
4.2. Altitude diving
The Altitude setting automatically adjusts the decompression calculation according to the
given altitude range. You can find the setting under Dive settings » Parameters » Altitude and
select from three ranges:
•
0 – 300 m (0 – 980 ft) (default)
•
300 – 1500 m (980 – 4900 ft)
•
1500 – 3000 m (4900 – 9800 ft)
As a result, the allowed no decompression stop limits are considerably reduced.
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. Suunto recommends that you acclimatize to a new altitude by waiting
at least three hours before making a dive.
Before high-altitude diving, you need to adjust the altitude settings of your dive computer so
that the calculations take into account the high altitude. The maximum partial pressures of
nitrogen allowed by the mathematical model of the dive computer are reduced according to
the lower ambient pressure.
WARNING: Traveling to a higher elevation can temporarily cause a change in the
equilibrium of dissolved nitrogen in the body. Suunto recommends that you acclimatize to the
new altitude before diving. It is also important that you do not travel to a
significantly high
altitude directly after diving to minimize the risk of DCS.
WARNING: SET THE CORRECT ALTITUDE SETTING! When diving at altitudes greater
than 300 m (980 ft), the altitude setting must be correctly selected in order for the computer
to calculate the decompression status. The dive computer is not intended for use at altitudes
greater than 3000 m (9800 ft). Failure to select the correct altitude setting or diving above
the maximum altitude limit will result in erroneous dive and planning data.
NOTE: If you are doing repetitive dives at an altitude other than the previous dive
altitude, change altitude setting to correspond to the next dive after the previous dive ended.
This ensures more accurate tissue calculations.
4.3. Ascent rate
During a dive, the bar on the left indicates ascent rate. One bar step corresponds to 2 m
(6.6 ft) per minute.
The bar is also color coded:
•
Green indicates ascent rate is ok, less than 8 m (26 ft) per minute
Suunto EON Steel Black
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