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Tissue Calculation Model
• Suunto RGBM algorithm (developed by SUUNTO and Bruce R. Wienke,
BS, MS and PhD).
• 9 tissue compartments.
• Tissue compartment halftimes: 2.5, 5, 10, 20, 40, 80, 120, 240 and 480
minutes (on gassing). The off gassing halftimes are slowed down.
• Reduced gradient (variable) “M” values based on diving habit and dive
violations. The “M” values are tracked up to 100 hours after a dive.
• The EAN and oxygen exposure calculations are based on recommendations
by R.W. Hamilton, PhD and currently accepted exposure time limit tables
and principles.
Battery
• One 3 V lithium battery; CR 2032
• Battery storage time (shelf life): Up to 18 months.
• Replacement: Every 18 months or more often depending on dive
activity.
• Life expectancy at 20°C [68°F]:
• 0 dives/y
-
> 16 months
• 50 dives/y
-
> 11 months
• 100 dives/y
-
> 9 months
• 200 dives/y
-
> 6 months