Operation Manual

GMC-I Messtechnik GmbH 23
Connection
Refer to the schematic diagrams included with the online help for
connection instructions.
Connection Exception for Permanently Installed Safety Class I Devices
Current is measured between the probe, with which the L and N conduc-
tors must be contacted, and the protective conductor terminal PE at the
device under test for permanently installed safety class I devices under
test.
Attention!
!
Disconnect mains power before connecting the test instrument!
õ Remove the mains fuses from the device under test and disconnect
the neutral conductor N inside the device under test.
õ Connect the probe to phase conductor L and neutral conductor N at
the device under test in order to measure equivalent leakage current.
Sequence
Current is displayed during this type of equivalent leakage current
measurement which would flow during leakage current measurement
conducted in accordance with device regulations with nominal voltage.
Leakage current measurement in accordance with the respective device
regulations is usually not possible, because the device would have to be
set up in an electrically isolated fashion, or connected to an earth isolated
power supply to this end.
For the evaluation of measured values during equivalent leakage current
measurement please refer to chapter 21.2.
Equivalent Leakage Current I
EL
DIN VDE 0701-0702 / 2 K
Select the I-EL measurement and start.
Equivalent leakage current is measured between short-circuited N and L,
and the protective conductor PE.
Measuring circuit resistance is equal to 2 k for VDE 0701-0702 for the
simulation of the mean body resistance of a human being.
Equivalent Device Leakage Current I
EDL
for IEC 62353 (VDE 0751-1) / 1 K
Select the I-EDL measurement and start
Equivalent device leakage current is measured between short-circuited N
and L, and the probe.
Measuring circuit resistance is equal to 1 k for IEC 62353/VDE 0751 for
the
simulation of mean patient resistance.
Equivalent Patient Leakage Current I
EPL
(IEC 62353 (VDE 0751-1))
Select the I-EPL measurement and start
Equivalent patient leakage current is measured between short-circuited N
and L and the respective application part. Jacks A through K (application
parts) are connected separately for each application part.
Groups of cables or sensors can be assigned to application parts in the
test sequence start menu in accordance with IEC 62353 (VDE 0751-1) or
EN 60601.