HOW TO CALIBRATE THE COMPASS

The Instrument is factory calibrated. There are no removable parts in the instrument, and there is normally no need to recalibrate the compass. If the Instrument is exposed to a strong magnetic field, a recalibration is recommended, and this can be performed in CAL.COMPASS.

Rotate the instrument around each axis, one at a time.

  1. The slower and steadier the rotation, the better chance of achieving an accurate calibration.
  2. The rotation should take approximately 30 seconds to complete.
  3. Any interruptions in this motion can cause errors in the pitch and roll, as they are perceived as an acceleration to the sensors.
  1. In the main menu go to and select SETTINGS then step to and select CAL.COMPASS.
  2. Use the SEND button to tick the CALIBRATE box then press ON to continue.
  3. Use the SEND button to tick the SURE box, then press ON to confirm and continue.
  4. Aim the Instrument to the North!
    1. Start to rotate the instrument around each axis, one at a time.
      – The slower and steadier the rotation, the better chance of achieving an accurate calibration.
      – The rotation should take approximately 30 seconds to complete.
      – Any interruptions in this motion can cause errors in the pitch and roll, as they are perceived as an acceleration to the sensors.
  5. Press ON when ready.
  6. Use the SEND button to tick the CALIBRATE box if inaccuracy is less than 1%. Press ON to confirm and calibrate.
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