SUUNTO DX - Manual (Page 119)

NOTE
Low temperature or an internal oxidation of the battery may activ-
ate the battery warning even though the battery has enough ca-
pacity. In this case, the warning usually disappears when the
DIVE mode is activated again.
10.2. Suunto decompression model development
Suunto's decompression model development originates from the 1980s when Suunto
implemented Bühlmann's model based on M-values in Suunto SME. Since then re-
search and development has been ongoing with the help of both external and internal
experts.
In the late 1990s Suunto implemented Dr. Bruce Wienke's RGBM (Reduced Gradient
Bubble Model) bubble model to work with the earlier M-value based model. The first
commercial products with the feature were the iconic Suunto Vyper and Suunto Stinger.
With these products the improvement of diver safety was significant as they addressed
a number of diving circumstances outside the range of dissolved-gas-only models by:
•
Monitoring continuous multiday diving
• Computing closely spaced repetitive diving
• Reacting to a dive deeper than the previous dive
• Adapting to rapid ascents which produce high microbubble (silent-bubble) build-
up
• Incorporating consistency with real physical laws for gas kinetics
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