Seed Hawk Raven 2010 - Manual (Page 216)

Appendix C
206 Seed Hawk™ Viper Pro™ Installation & Operation Manual
For Example:
in English Units:
Using the default Speed Cal of 598, and a Viper Pro odometer reading of 5000:
the Corrected Speed Cal is 631.
in Metric units:
Therefore, the Corrected Speed Cal equals 155.
5.
Enter 631 (for English units) or 155 (for Metric units) for the Speed Cal.
6.
Confirm that the new Speed Cal is correct by repeating steps 2 through 4 above.
598 5280

5000
--------------------------- 631 =
152 1000

980
--------------------------- 155 =