Sonel MPI-520 User Manual

MPI-520 – USER MANUAL
20
3.5 Measurement of resistance-to-earth
The three-pole measuring method is the basic type of resistance-to-earth measurement.
Disconnect earth elec-
trode being tested from
the installation of the
building.
Set the rotary switch of function selection
at R
E
position.
E SH
The current electrode (driven into earth) should be connected to H socket of the meter.
The voltage electrode (driven into earth) should be connected to S socket of the meter.
The earth electrode being tested should be connected to E socket of the meter.
The earth electrode being tested and the current electrode and the voltage electrode should be
located in one line.
The meter is ready
for measurement.
Value of interference
voltage U
N
can be
read on the display.
Press F1 push-button to change test voltage.

Sonel MPI-520 Specifications

General

Brand	Sonel
Model	MPI-520
Category	Measuring Instruments
Language	English