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Clock, calendar, daily alarm, dual time
•
Mix Oxygen fraction % (Nitrox mode only)
•
Maximum PO
•
Altitude and personal adjustments
•
RGBM adjustment
•
Safety/Deep Stop adjustment
•
Sample rate setting 1, 2, 10, 20, 30 or 60 seconds for dive profi le
•
The Suunto RGBM/Deep Stop Algorithm
The Suunto Reduced Gradient Bubble Model (RGBM) utilized in the D9 predicts both
dissolved and free gas in blood and tissues of divers. It is a signifi cant advance on the
classic Haldane models, which do not predict free gas. The advantage of Suunto RG-
BM is additional safety through its ability to adapt to a variety of situations and dive
profi les.
The Suunto D9 allows the user to choose between a traditional Recommended Safe-
ty Stop and Deep Stops. Deep Stops are decompression stops that occur deeper than
traditional stops, with the purpose of minimizing microbubble formation.
In order to optimize how to respond to different added risk situations an additional ca-
tegory of stop, referred to as a Mandatory Safety Stop, has been introduced. The com-
bination of stop types will depend on the user settings and the specifi c dive situation.
To get the most from the safety benefi ts be sure to read the summary of the Reduced
Gradient Bubble Model in chapter 10.2.
(Nitrox mode only)
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