REVEXmax - User’s Manual
4
Measurements
4.3
Earth bond - Rpe
WARNING
•
Do not connect any external voltage between the R
PE
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 REVEXmax
immediately to avoid damage!
Resistance measurement is also possible if the REVEXmax is con-
nected 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.
4.3.1
Test lead resistance compensation
Compensation means that the test lead resistance is measured and then
automatically memorized and subtracted from all Rpe measurements.
The real earth bond resistance is thus displayed. The compensation
constant remains in the instrument’s memory even if the instrument
is switched off. Therefore, the lead compensation is valid until a new
compensation is carried out.
Procedure:
•
Press the
[3 R
PE
]
key and release it.
•
Plug the test lead with the test tip into the
R
PE
terminal.
•
Plug the test tip of the test lead either into the
PE
terminal or press it
against the ground pin of the Test Socket
1
. If you use two test leads (which
are connected to the
PE
terminal and the
R
PE
terminal), then make a short-
circuit of their test tips.
•
Press the
[TEST]
key and release it.
•
Press the
[Cal]
key and release it. The measured value is saved.
c
2019 ILLKO, s.r.o.
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