Protective Earth Resistance - ILLKO REVEXmax S User Manual

REVEXmax - User's Manual
The compensation is effective for test lead resistance <2.00 Ω. If the test lead
resistance is >10.00 Ω and the compensation procedure has been carried out, com-
pensation is cancelled and all the following displayed results are the sum of the earth
bond + test lead resistance. The
If compensation is active (it means that test lead resistance <2.00 Ω was memo-
rized), then the
CAL
If the measured value is less than the saved compensation value during measure-
ment (after subtraction, the memorized resistance will result in a negative number),
the display shows the absolute value and the
cause may be replacing test leads for shorter ones with less resistance. In this case,
it is necessary to re-compensate the test leads resistance.
4.3.2

Protective earth resistance

Procedure:
Press the [3 R
Plug the test lead with the test tip into the R
Connect the tested appliance:
– One-phase appliance with a movable power supply cord – plug in its
mains plug to Test Socket 1.
– Three-phase appliance with a movable power supply cord – connect the
PE pin of its plug to the instrument's PE terminal by means of the
optional test lead + crocodile clip.
– Hard-wired appliance – firstly disconnect the appliance from the
mains! Connect its point of PE connection to the instrument's PE ter-
minal by means of the optional test lead + crocodile clip.
Press the test tip against the exposed conductive part of the tested appliance.
Press the [TEST] key. If the
it means that the test lead resistance is compensated.
After finishing the measurement, the last measured value is displayed.
The lowest measured value can be displayed - press the [3 R
during the measuring. The current and the lowest value are displayed
now. When the measurement is finished, only the lowest value is dis-
played. To deactivate the function, press the [3 R
WARNING
If only >10.00 Ω is displayed it means that the measured earth bond
resistance is higher than the maximal value which can be measured by
REVEXmax. The maximal value is the sum resistance of the test
leads and the resistance of the earth bond!
c 2019 ILLKO, s.r.o.
CAL
symbol is displayed during Rpe measurements.
] key and release it.
PE
CAL
www.illko.cz
symbol is not displayed.
symbol appears inversely. The
CAL
terminal.
PE
indicator lights up during measurement,
4 Measurements
] key
PE
] key again.
PE
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