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these calculations according to the personal adjustment you select.
The pattern and speed of decompression at the surface is adjusted according to
micro-bubble infl uence.
Also on repetitive dives adjustment may be applied to the maximum allowable nitro-
gen overpressure in each theoretical tissue group.
Depending on circumstances Suunto RGBM will adapt the decompression obligations
by doing any or all of the following:
• Reducing no-decompression stop dive times
• Adding Mandatory Safety Stops
• Increasing decompression stop times
• Advising an extended surface interval (Diver Attention symbol).
Diver Attention Symbol – Advice to Extend Surface Interval.
Some patterns of diving cumulatively add a higher risk of DCI, e.g. dives with short
surface intervals, repetitive dives deeper than earlier ones, multiple ascents, substan-
tial multiday diving. When this is detected in addition to adapting the decompression
algorithm the Suunto RGBM model will in some circumstances also advise, with the
Diver Attention Symbol (review chapter 5.2) that the diver extend the surface interval.
NO-DECOMPRESSION LIMITS
The no-decompression limits displayed by the dive computer for the fi rst dive to a
single depth (see Table 10.1. and Table 10.2.), are slightly more conservative than
those permitted by the U.S. Navy tables.
