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How does averaging of my readings affect the accuracy of the 44702A?

For the 40 mV range:

accuracy = +/- (0.05% + 35 uV + 34 / N^0.5 uV)

where "N" is the number of readings averaged.

For 10 readings averaged this gives +/-(0.05% + 46 uV)

For 100 readings averaged this gives +/-(0.05% + 39 uV)

Similar formulas can be derived for the other ranges using this form and the data book numbers.