SUUNTO D9 - Manual (Page 45)

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In this situation, it is recommended to prolong your surface in-
terval time before your next dive.
5.1.6. DEEP STOPS
The Suunto D9 allows the user to choose a Deep Stop al-
gorithm instead of the traditional recommended safety stop.
Deep Stops are decompression stops that occur deeper than
traditional stops, with the purpose of minimizing microbubble
formation and excitation.
The Suunto RGBM model calculates deep stops iteratively,
placing the fi rst stop about halfway between the maximum
depth and the ceiling depth. After the fi rst deep stop is comp-
leted, another deep stop will be prompted halfway to the cei-
ling, and so on until the ceiling depth is reached.
The deep stop length can be set to 1 or 2 minutes.
Enabling the Deep Stops disables the Recommended Safety
Stops, but Mandatory Safety Stops due to e.g. continuous as-
cent rate violations are still prompted.
b) Mix 3 is set off. Oxygen
percentage is 99%, oxygen
partial pressure limit is 1.6.
Maximum Operational Depth
is 6m
Fig. 5.14. Setting additional
gas mixes (MIX2, MIX3).
a) MIX 2 is turned on. Oxy-
gen percentage is 50%, oxy-
gen partial pressure limit is
1.6 bar. Maximum Operatio-
nal Depth is 21.3m. Press
scroll buttons to enable/
disable MIX2. Press SE-
LECT to accept settings.