SUUNTO HELO2 - Manual (Page 104)

10.2.2. Diver safety and Suunto Technical RGBM model
Because any decompression model is purely theoretical and does not monitor the
actual body of a diver, no decompression model can guarantee the absence of DCI.
Suunto Technical RGBM model has many features that reduce the risk of DCI. The
Suunto Technical RGBM algorithm adapts its predictions of both the effects of micro-
bubble build-up and adverse dive profiles in the current dive series. The pattern and
speed of decompression is adjusted according to the microbubble influence. The ad-
justment is also applied to the maximum combined nitrogen and helium overpressure
in each theoretical tissue group. To add diver safety, offgasing is also slowed down
compared to ongasing and the amount of slowing down depends on the tissue group.
Experimentally it has been shown that the body adapts to decompression to some
degree when diving is constant and frequent. Two personal adjustment settings (P-1
and P-2) are available for divers who dive constantly and are ready to accept greater
personal risk.
CAUTION
Always use the same personal and altitude adjustment settings
for the actual dive than for the planning. Increasing the personal
adjustment setting from the planned setting as well as increasing
the altitude adjustment setting can lead to longer decompression
times deeper and thus to larger required gas volume. You can
run out of breathing gas underwater if the personal adjustment
setting has been changed after dive planning.
104