Rockwell Automation DC3R Isolation Option Board - Manual (Page 18)

12 Calibration
7. Set the voltage input signal to Vimax.
8. Calculate the test point voltage, Vtp:
(Vimax) (m)
Vtp =
2
where
Vomax – Vomin
m =
Vimax – Vimin
9. Adjust the SIGNAL INPUT ADJ trimmer potentiometer (P501) so that the
voltage from COM to TP (terminal 7 to 10) is Vtp.
10. Adjust the MAX OUT trimmer potentiometer (P502) so that the voltage output
signal is Vomax.
11. Repeat steps 4, 5, 6, 7, 9, and 10. Use the same voltage values that you
previously calculated.