ILLKO MDtest - Page 27

MDtest (100-140 V) - User’s Manual 4 Measurements
WARNING
• The earth bond resistance (chapter 4.3) must be first tested; it
is recommended that you also test the insulation resistance if it
is possible too (chapter 4.4). Then you can carry out the leakage
current measurement!
• The DUT must be isolated from the ground (from the earth
potential) during measurement!
• Test Socket 1 of the MDtest must not be used for continuous
power supply of the appliance!
Procedure:
• Press the [4 IDIR] key and release it.
• If the measurement with open PE can be performed, press the [OpenPE] key.
• Press the [Eq] or [OpenPE] keys repetitively in order to measure with L-N
reversal. Symbol L-N reversed is displayed
• Connect the tested appliance: plug in its mains plug into Test Socket 1 and
plug the applied part into the PAT terminal. If necessary (e.g. protective
class II appliances), plug the test lead into the PE terminal (if Open PE is
selected plug into the PAT terminal).
• Press the [TEST] key.
• Switch on the tested appliance’s mains switch.
• Press the test tip against the exposed conductive part of the tested appliance.
• The HOLD function can be used (press the [H] key).
• Switch off the tested appliance’s mains switch.
• Finish the measurement (see chapter 4.2.1).
c
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