
8
3.7
Accuracy Adjustment
a.
Referring to Fig. 12, connect output BNC to a DMM.
b.
Connect the red input line to the positive terminal of a DC voltage source (70VDC) and the
black input line to the negative terminal source (70VDC).
c.
Put SW1 at 1/100.
d.
Adjust VR3 to make the output voltage equal to 0.703 V.
Fig. 12