Benning ST 755 Operating Manual page 58

Class I, ICont, differential current measuring method
Measures the sum of all leakage currents
Connection diagram
VDE 0701-0702, VDE 0544-4
Circuit diagram
VDE 0701-0702, VDE 0544-4
 Insert the shock-proof plug of the test sample into the test socket
of the appliance tester.
The test sample is supplied with mains voltage and must be
tested in all switch positions (device functions).
 Use the test probe to scan all accessible conductive parts of the
test sample that are not connected to the protective conductor.
Class I, ICont, alternative leakage current measurement
L and N conductors are bridged
Connection diagram
VDE 0701-0702, VDE 0544-4
Circuit diagram
VDE 0701-0702, VDE 0544-4
 Insert the shock-proof plug of the portable test sample into the
test socket of the appliance tester.
The testing voltage is applied and the test sample must be tested
in all switch positions (device functions).
 Use the test probe to scan all accessible conductive parts of the
test sample that are not connected to the protective conductor.
50
Class II, ICont, direct current measuring method
Place the test sample onto an insulated surface.
Connection diagram
VDE 0701-0702, VDE 0544-4
Circuit diagram
VDE 0701-0702, VDE 0544-4
 Insert the shock-proof plug of the test sample into the test socket
of the appliance tester.
The test sample is supplied with mains voltage and must be
tested in all switch positions (device functions).
 Use the test probe to scan all accessible conductive parts.
Class II, ICont, differential current measuring method
Measures the sum of all leakage currents
Connection diagram
VDE 0701-0702, VDE 0544-4
Circuit diagram
VDE 0701-0702, VDE 0544-4
 Insert the shock-proof plug of the test sample into the test socket
of the appliance tester.
The test sample is supplied with mains voltage and must be
tested in all switch positions (device functions).
 Use the test probe to scan all accessible conductive parts.