This feature allows the user to calibrate/zero-offset the ANT+ power meters for greater accuracy.
Here are the steps to calibrate your Power Meter from the Control Center:
The Zero Offset process for Rotor Power Meters requires pressing the “Zero Offset”
button twice on your Karoo 2. This is necessary for calibrating force and angle.
Note: If you see a red error message reading "ZERO OFFSET FAILED - ERROR TIMEOUT",
try to follow the steps again with your feet off the pedals.