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How do I calculate the dc vertical gain accuracy of a U2701A/U2702A USB Modular Oscilloscope?

The dc vertical gain accuracy of a U2701A/U2702A USB Modular Oscilloscope depends on the error values that are included in the measured value. The accuracy specifications are expressed in the form: "+-4% of Full Scale", where "Full scale" on all ranges is defined as 8 divisions multiplied by the V/div setting.

Example:
Assume you want to measure an input signal at the range of 50 mV/div.
The DC vertical gain accuracy is:
50mV/div x 8div x 4% = +/-16mV