SUUNTO Cobra2 - Manual (Page 15)

Calibration
Because of changes in the surrounding magnetic field, the Suunto Cobra2 electronic
compass occasionally needs to be re-calibrated. During the calibration process, the
compass adjusts itself to the surrounding magnetic field. As a basic rule, you should
calibrate the compass whenever it doesn’t seem to operate properly, or after replacing
the dive computer's battery.
Strong electromagnetic fields, such as powerlines, stereo speakers, and magnets can
affect the compass calibration. It is therefore advisable to calibrate the compass if your
Suunto Cobra2 has been exposed to these fields.
NOTE When traveling overseas, it is recommended that you recalibrate the
compass at the new location before using it.
NOTE Remember to hold the Suunto Cobra2 level during the calibration
process.
To calibrate the compass:
HOLD THE
DEVICE LEVEL
AND SLOWLY
ROTATE 360°.
If the calibration fails several times in a row, it is possible that you are in an area with
sources of magnetism, such as large metal objects, powerlines or electric appliances.
Move to another location and try to calibrate the compass again. If the calibration continues
to fail, contact an authorized Suunto service center.
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