Hello,

I am looking at the Rigol DP832 specifications to try to figure out what the voltage and current accuracy of the unit are and it seems pretty straight forward, but just to verify, could anyone tell me if my calculations below are correct or not? I have attached the DP832 specification manual in case it helps.

Basically, according to me:

1) If the output voltage specified by me is 0 volts, then the unit could potentially output any voltage value between -0.020V and +0.020V (can the min value actually be negative?).

2) If the output voltage specified by me is 1 volt, then the unit could potentially output any voltage value between 0.9795V and 1.0205V.

3) If the output voltage coming out of the unit is exactly 0 volts, then the unit readback could potentially be any voltage value between -0.010V and +0.010V (can the min value actually be negative?).

4) If the output voltage coming out of the unit is exactly 1 volt, then the unit readback could potentially be any voltage value between 0.9895V and 1.0105V.

I feel I am doing something wrong because with the high-resolution option installed (to go down to milli-volts / milli-amps) it seems to me like the +/- actual vs display is huge.

Thanks.