SUUNTO HELO2 - Manual (Page 57)

5.11. Deep stops
The most significant factor limiting the ascent is the ceiling depth. It is the maximum
depth a diver can ascend to before tissue pressures have decreased low enough. In
addition, separate safety stops are used. Their purpose is to increase the safety
margin even if decreasing the tissue pressures does not require them. Such stops are
safety stop when surfacing and deep stops.
According to UHMS, deep stops are stops that occur deeper than the traditional de-
compression model suggests. The purpose of deep stops is to slow down a long
continuous ascent and minimize microbubble formation and excitation.
While the Suunto Technical RGBM model is based on M-values, the use of deep stops
brings the model closer to the full RGBM model. The way of implementing deep stops
is conducted by Dr. Bruce Wienke.
If deep stop is broken it does not cause the dive computer to go into error mode.
However there is penalty applied to the following decompressions.
DURING DESCENT,
YOU ARE SHOWN
THAT A DEEPSTOP IS
NEEDED AT THE
DEPTH OF 25 M.
DURING ASCENT, YOU
ARE ADVISED TO MAKE A
DEEPSTOP AT 25 M FOR THE
DURATION SHOWN BY THE
TIMER (42 SEC. REMAINING).
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