SIGMA RC 14.11 - Manual (Page 31)

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US/GB
6.5 CORRECTION FACTOR
If you get good values with or without calibration, which vary only
minimally in one direction, you can manually correct these values
using 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 for the
correction factor is 1.000 and does not effect a change.
Please calculate the correction factor as follows:
k New correction factor =
1.000 x 2000 / 2037
k New correction factor = 0.982
Please enter this new correction factor. For the setting, please see
section 5.4 “Brief guide to device settings”.
6 CALIBRATION AND CORRECTION FACTOR
old correction factor ( 1.000 ) x actual distance ( 2000 )
displayed distance ( 2037 )