In the OP, the difference is 3% of the DMM measurement. Assuming the DMM value is correct (a poor assumption), the scope value is within error bounds of the Rigol DS1054Z.
Don't know about the DS2202A.
In the OP, the difference is 3% of the DMM measurement. Assuming the DMM value is correct (a poor assumption), the scope value is within error bounds of the Rigol DS1054Z.
Don't know about the DS2202A.