Advantech ADAM-5511 Manual page 76

4. Execute the Zero Calibration command (also called the Offset
Calibration command). This is also done with the ADAM utility
software. (See the "Zero Calibration" option in the Calibration sub-
menu of the ADAM utility software.)
5. Execute the Span Calibration command. This can be done with
the ADAM utility software. (See the "Span Calibration" option in
the Calibration sub-menu of the ADAM utility software.)