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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 2430
Battery storage time (shelf life): Up to two years.
Replacement: Every two years or more often depending on dive activity.
Life expectancy at 20°C [68°F]:
- 0 dives/y -> 24 months
- 100 dives/y -> 12 months
- 300 dives/y -> 6 months
