- AT3-III and AT3-IIS operate the same way in principle.
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Fig. Testing of residual current during automatic testing according to DIN VDE 0701/0702 standard
- Call up the standard-specific setup. There, select "Sequence" and deactivate the auto test method.
- During the test according to the standard, a menu then appears with the selection between substitute leakage current and residual current, select "Residual current".
- The mains voltage is switched to the DUT via the AT3-III E. The residual current of the DUT is measured and at the same time the function of the DUT can be tested.
- The current consumption of three-phase devices cannot be measured with these test instruments.