Sigma RC 1209 Mode D'emploi page 59

6 CALIBRATION & CORRECTION FACTOR
6.5 CORRECTION FACTOR
If you get good values with or without calibration, which vary only
minimally in one direction, you have the option to manually correct
these values by the correction factor.
Example:
You know that you have run exactly 2000 m, but the running computer
always shows a little more, e.g. 2037 m.
The factory setting of the correction factor is 1.000 and does not effect
a change.
Please calculate the correction factor as follows:
New correction factor =
k
New correction factor =
k
Age correction factor (1.000) x actual distance (2000)
Follow steps 1-4 as described in section 5.4 "Brief guide to device
settings"
1.000 x 2000
0.982
displayed distance (2037)
/ 2037
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