Calibrating Compass; Setting Declination - Suunto EON User Manual

Suunto EON Steel Black

4.8.1. Calibrating compass

When you first start using Suunto EON Steel Black, and after each charging, the compass
needs to be calibrated and it is required to do so to activate it. Suunto EON Steel Black
displays the calibration icon when you enter the compass view.
During the calibration process, the compass adjusts itself to the surrounding magnetic field.
Because of changes in the surrounding magnetic field, it is recommended to re-calibrate the
compass before each dive.
To manually start calibration:
1. Take off your Suunto EON Steel Black.
2. Keep the middle button pressed to enter the menu.
3. Browse to General » Compass.
4. Press the middle button to enter Compass.
5. Scroll up or down to select Calibrate.
6. Start calibrating the device by trying to move it around the xyz axes of the coordinate
system (like you were drawing a small circle) so that the magnetic field is as stable as
possible during the calibration. To achieve this, try to keep Suunto EON Steel Black in the
same location and do not move it around using large movements.
7. Repeat the rotation until the compass calibration is successful.
8. A sound indicates when the calibration succeeded, and the screen goes back to Compass
menu.
NOTE: If the calibration fails several times in a row, you may be in an area with strong
sources of magnetism, such as large metal objects. Move to another location and try to
calibrate the compass again.

4.8.2. Setting declination

You should always adjust your compass declination for the area where you are diving to get
accurate heading readings. Check the local declination from a trusted source and set the
value in Suunto EON Steel Black.
To set declination:
1. Keep the middle button pressed to enter the menu.
2. Browse to General » Compass.
3. Press the middle button to enter Compass.
4. Press the middle button again to enter Declination.
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