WHEN CEILING AND STOP ARE
DISPLAYED, MAKE A ONE MINUTE
MANDATORY SAFETY STOP IN THE
DEPTH ZONE BETWEEN 6 M AND 3 M.
You must not ascend shallower than 3 m/10 ft with the Mandatory Safety Stop warning on. If you ascend above the Mandatory Safety Stop ceiling, a downward pointing arrow will appear and a continuous beeping starts. You should immediately descend to, or below, the Mandatory Safety Stop ceiling depth. If you correct this situation at any time during the dive, there are no effects on the decompression calculations for future dives.
WHEN CEILING AND STOP ARE DISPLAYED, IMMEDIATELY (WITHIN 3 MINUTES) DESCEND
TO OR BELOW CEILING.
If you continue to violate the Mandatory Safety Stop, the tissue calculation model is affected and the dive computer shortens the available
5.12. 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 addtion, 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 decom- pression 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
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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