R
H
– resistance of current elec-
trode
R
S
– resistance of voltage elec-
trode
δ – additional uncertainty caused
by resistance of the electrodes
Selecting the bar hides the
menu.
Save the measurement to the meter memory using the icon. A detailed description of
memory management is contained in section 5.3. The last measurement can be recalled using
the icon.
Repeat the steps for two
additional locations of the voltage
electrode S:
at a certain distance from the
tested earth electrode,
moved closer by the same dis-
tance to the tested earth elec-
trode.
This is done to confirm that the S
electrode was driven into the ref-
erence earth. If so, the differ-
ence between the value of R
E
between the main measurement
and each additional measurement
should not exceed 3%.
If R
E
measurement results differ
from one another by more than
3%, the distance of the current
electrode from the earth electrode
being tested should be consid-
erably increased and the meas-
urements should be repeated.
WARNING
Measurement of resistance-to-earth may be carried out if voltage of interfer-
ences does not exceed 24 V. Voltage of interferences is measured up to the
level of 100 V.
Over 50 V it is signalled as hazardous. The meter must not be connected to
voltages exceeding 100 V.
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