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	Sanwa Electric Instrument Co., Ltd.	Sanwa Electric Instrument Co., Ltd.

Tell me how to calculate the error of the digital multimeter.

Question
Tell me how to calculate the error of the digital multimeter.
Answer
"The following formula shows the error calculation method.
±{(accuracy error rate <%> × reading) + range error <dgt>}

Example of our PC510a
When the true value 2.000V is measured in the 5.000V range, the accuracy is given as ±(0.08%rdg+2dgt), so the displayed value will be within the range of 1.996 to 2.004V.
*Accuracy error is 0.0016V and range error is 0.002V。Although, the displayed value should be within the range of 1.9964 to 2.0036V in the calculation, the PC510a displays only 4 digits, so round off the 5th digit."