SUUNTO Gekko - Manual (Page 59)

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Operating Conditions
- Normal altitude range: 0 to 3000 m [10000 ft] above sea level.
- Operating temperature: 0°C to 40°C [32°F to 104°F].
- Storage temperature: -20°C to +50°C [ -4°F to +122°F].
It is recommended that the instrument be stored in a dry place at room tempera-
ture.
NOTE!
Do not leave the dive computer in direct sunlight!
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 min-
utes (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 2450 (K5597) and O-ring 1,78 mm x 31,47
mm 70 ShA (K5664).
- Battery storage time (shelf life): Up to three years.
- Replacement: Every two years or more often depending on dive activity.
- Life expectancy at 20°C [68°F]:
- 0 dives/y
-> 2 years
- 100 dives/y -> 1,5 years
- 300 dives/y -> 1 year
The following conditions have an affect on the expected battery lifetime:
- The length of the dives.
- The condition in which the unit is operated and stored (e.g. temperature/
cold conditions). Below 10°C [50°F] the expected battery lifetime is about
50-75% of that at 20°C [68°F].
- The use of the audible alarms.