Fluke Biomedical ESA620 - Manual (Page 44)

ESA620
Users Manual
30
faw16.eps
Figure 18. Leakage Current Main Menu
Note
The display shown in Figure 18 is the main
leakage current menu when IEC60601 is the
selected standard.
All leakage currents, with the exception of Mains on
Applied parts (Lead Isolation), are displayed in one of
three ways: AC+DC, AC Only, or DC only. The initial
result is displayed in the appropriate parameter based on
the standard selected. To change the displayed
parameter, press  or . The present measurement
method is displayed in the upper left corner of the display
while leakage current tests are conducted.
Measuring Earth Leakage Current
Note
The Earth (or Ground Wire) Leakage test is
available for all standards except IEC 62353 and
IEC 61010.
To measure the current flowing in the DUT’s protective
earth circuit, press the softkey labeled Earth (pending the
standard) from the leakage current main menu. Figure 19
shows the electrical connections between the Analyzer
and the DUT during an Earth Leakage Current Test.
Within the Earth Leakage Current test there are a few
combination measurements that can be performed.
Pressing  switches the polarity of the mains voltage
applied to the Analyzer’s test receptacle between Normal,
Off, Reverse, and Off. Pressing  opens and closes
the neutral connection to the Analyzer’s test receptacle.
There is no need to open up the test receptacle earth
(ground), since this is done internally during the
measurement.
The following outlet conditions apply when performing this
test:
•
Normal Polarity
•
Normal Polarity, Open Neutral
•
Reversed Polarity
•
Reversed Polarity, Open Neutral
IEC60601-1 specifies that the applied parts should be
connected for this measurement. Enable this
measurement by pressing  or  which grounds and
ungrounds all applied parts connection posts.