User Manual

WT901 | manual v0513 | http://wiki.wit-motion.com/english
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2.3.2 Magnetic Field Calibration
Purpose:
Magnetic calibration is used to remove the zero bias of the magnetic field
sensor. Usually, the magnetic field sensor will have a large zero error when it is
manufactured. If it is not calibrated, it will bring a large measurement error,
which will affect the accuracy of the measurement of the z-axis Angle of the
heading Angle.
Preparation:
If you wanna measure the Z-axis, it is required to keep the sensor stay 20CM
away from magnetic and iron and other materials
Methods:
Step 1. Open the Config menu
Step 2. Click the magnetic field calibration button. click the “Start calibration”