It's a digital meter that "counts" in steps of 0.01mA.
So the error could be as great at 2% plus a further 0.02mA (two counts).
Basically, there is going to be a percentage error determined by the
accuracy of the reference standard built into the unit. However, there
is also going to be an error due to the conversion method that can
always produce an error of up to two counts, irrespective of the input
At high values, towards "full scale deflection", the % error dominates.
At very low values, towards zero, the count error dominates.
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