Suunto Cobra2 User Manual download pdf (Page 44)

9. TECHNICAL DATA

9.1. Technical specifications

Dimensions and weight:

• Diameter: width 73 mm/2.85 in, length 165 mm/6.50 in

• Thickness: 35 mm/1.40 in

• Weight: 210 g/7.4 oz (without hose)

Depth gauge:

• Temperature compensated pressure sensor

• Salt water calibrated, in fresh water the readings are about 3% smaller (calibrated in

compliance with EN 13319)

• Maximum depth of operation: 100 m/328 ft (complying with EN 13319)

• Accuracy: ± 1% of full scale or better from 0 to 80 m/262 ft at 20°C/68°F (complying

with EN 13319)

• Depth display range: 0 to 150 m/492 ft

• Resolution: 0.1 m from 0 to 100 m/1 ft from 0 to 328 ft

Temperature display:

• Resolution: 1°C/1°F

• Display range: -20 to +50°C/-9 to +122°F

• Accuracy: ± 2°C/± 3.6°F within 20 minutes of temperature change

Calendar clock:

• Accuracy: ± 25 s/month (at 20°C/68°F)

• 12/24 h display

Displays only in NITROX mode:

• Oxygen %: 21 - 99

• Oxygen partial pressure display: 0.2 - 3.0 bar, depending on the limit setting

• Oxygen Limit Fraction: 1 - 200% with 1% resolution

Logbook/dive profile memory:

• Recording interval: 20 seconds adjustable (1,10,20,30,60s).

• Memory capacity: approximately 42 hours of diving with 20 second recording interval

• Depth accuracy: 0.3 m/1 ft

Operating conditions:

• Normal altitude range: 0 to 3,000 m/10,000 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 temperature.

NOTE

Do not leave the dive computer in direct sunlight!

Tissue calculation model:

• Suunto Deep Stop RGBM algorithm (developed by Suunto and Bruce R. Wienke, BSc,

MSc, 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 2450

• Battery storage time (shelf life): Up to three years

• Replacement: Every three years, or more often depending on dive activity

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Suunto Cobra2 User Manual Page 44

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