SRM High Performance Ergometer Manual page 18

SRM Ergometer Manual
Zero Offset
The PowerMeter delivers a certain frequency which is proportional to the
torque of the pedal force on the crank. If there is no load on the crank,
the PowerMeter is sending a base frequency which must be communicated
to the ergometer software and to the PowerControl as a reference value.
This procedure is called zero offset calibration (offset adjustment).
The zero offset calibration has to be done before every new assembly of
the PowerMeter and also before every measurement resp. every training
on the Ergometer. A wrong zero offset calibration can result in an internal
miscalculation of the power.
Please perform the zero offset calibration as it is described below:
 For a manual comparison, please turn the right unloaded crank
clockwise to activate the PowerMeter.
 Wait a few seconds until the displayed value is stabilized.
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