OPERATING MANUAL MPI-530-IT version 1.06
The meter is ready for measure-
ment.
Value of interference voltage U
N
of the measured object may be
read on the display.
Press START push-button to start the measurement.
Read out the result.
Resistance of current electrode
Resistance of voltage electrode
The value of additional uncertainty,
generated by the resistance
of auxiliary electrodes
The result is displayed on the screen for 20 s.
The result can be recalled by pressing ENTER push-
button.
Repeat the measurements (steps 2, 11, 12) moving the
voltage a few meters - placing it farther and closer to the
measured earth electrode. If R
E
measurement results dif-
fer from one another by more than 3 %, the distance of
the current electrode from the earth electrode being test-
ed should be considerably increased and the measure-
ments should be repeated.
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, but above 50 V it is signalled as dangerous. The meter must not
be connected to voltages exceeding 100 V.
- Particular attention should be paid to quality of connection between the object being tested and the
test lead – the contact area must be free from paint, rust, etc.
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