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Calibrate the S3 Stride Sensor
Optional calibration of the stride sensor can
improve the accuracy of speed, pace and
distance measurements. It is recommended that
you calibrate the stride sensor before using it
for the first time, if there are significant
changes in your running style, or if the position
of the stride sensor on the shoe is dramatically
changed (e.g. if you have new shoes). You can
calibrate the stride sensor by running a known
distance, or by setting the calibration factor
manually.
Calibrate stride sensor during training
(on-the-fly calibration): You can calibrate the
stride sensor at any phase of your training
session with actual distance correction, when
you have run a known distance, preferably more
than 1000 meters, calibrate the stride sensor as
instructed in the user manual for the Polar
product in question.
Set calibration factor manually: The
calibration factor is calculated as a ratio of the
actual distance to the uncalibrated distance.
For instance if you run 1200 m and the Polar
product shows a distance of 1180 m, the
calibration factor is 1.000. Calculate the new
factor as follows: 1.000*1200/1180 = 1.017.
The measuring range for the factor is
0.500-1.500.
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