WV test mode is mainly used for the DUT like: MLCC, aluminum foil, diode and otherapplications. This mode is to measure whether the DUT can be charged to the voltage point that isalmost get to BDV. (BDV is not used because we don’t want the DUT to be destroyed)Set the upper limit of voltage and charge current first, when the leakage current isequal to the constant charging current, the voltage will be maintained at a certain level.If the DUT is able to be charged to the upper limit of the voltage, it will judge PASS;otherwise, if the voltage cannot reach to the set voltage, it will judge Fail.