MDtest (100-140 V) - User’s Manual 4 Measurements
4.3 Earth bond - Rpe
Figure 4: Rpe measurement
WARNING
• Do not connect any external voltage between the RPE terminal
and the PE in Test Socket 1 or PE terminal.
• If you are going to test equipment which can be charged to volt-
age >25 V (e.g. filter capacitors), discharge it before the test!
If external voltage is present on the device under test, the message
(Interference voltage at the input) is displayed. This status is a
dangerous fault condition; disconnect the DUT from the MDtest im-
mediately to avoid damage!
Resistance measurement is also possible if the MDtest is connected to
the IT mains.
We recommend performing the measurements for a max. of 30 secs.
because of power dissipation inside the instrument (only for value
<10.00 Ω). If the temperature inside exceeds the allowed limit, the
symbol
is displayed and the acoustic signal sounds.
c
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