Benning ST 755 Operating Manual page 53

Class II, RInsu-2
Sec. <-> test body
Connection diagram
VDE 0701-0702, VDE 0544-4, VDE 0751-1
Circuit diagram
VDE 0701-0702, VDE 0544-4, VDE 0751-1
 Connect the test probes according to the connection diagram and
scan the portable test sample.
 The testing voltage is applied to the PE socket. The insulating
resistance is measured between the secondary side and the body
of the test sample.
Class II, RInsu-3
LN <-> sec.
Connection diagram
VDE 0701-0702, VDE 0544-4, VDE 0751-1
Circuit diagram
VDE 0701-0702, VDE 0544-4, VDE 0751-1
 Insert the shock-proof plug of the portable test sample into the
test socket of the appliance tester.
 The testing voltage is applied to the bridged LN conductor.
 The insulating resistance is measured between LN and the
secondary side.
Class III, RInsu-1
Input <-> test body
Connection diagram
VDE 0701-0702
Circuit diagram
VDE 0701-0702
 Connect the test probes according to the connection diagram and
scan the portable test sample.
 The testing voltage is applied to the PE socket.
 The insulating resistance is measured between the input (IN) and
the body of the test sample.
Class III, RInsu-2
Output <-> test body
Connection diagram
VDE 0701-0702
Circuit diagram
VDE 0701-0702
 Connect the test probes according to the connection diagram and
scan the portable test sample.
 The testing voltage is applied to the PE socket.
 The insulating resistance is measured between the output (OUT)
and the body of the test sample.
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