I am using an ADC-212/100 on a PIII win2K laptop. When measuring DC voltages after doing the offset null procedure, the cursor measurment is dead on accurate with a hand held Fluke 87 meter.
When I use the DC Voltage measurment from the menu, I get different results. They are close, but not correct. I wonder why there is a difference between the measured DC and the cursor display measurment?