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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
Vytec:
• 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 backlight and audible alarms.
• The quality of the battery (some lithium batteries may exhaust
unexpectedly, which cannot be tested in advance).
• The time the dive computer has been stored until it gets to the
customer. The battery is installed into the unit at the factory.
Transmitter:
• One 3 V lithium battery: 1/2AA (K5546) and
O-ring 2,00 mm x 25,00 mm (K5538).
• 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 -> 3 years
• 100 dives/y -> 2 years
• 400 dives/y -> 1 year