nvent ERICO System 3000 - Ground Resistance Measurement and Testing; Ground Resistance Measurement Equipment

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EST4620
• Measures ground resistance
(- and -Point) Fall-of-
Potential method and soil
resistivity (-Point)
EST6472
• Measures Ground Impedance
at frequencies up to kHz to
test lightning strike protection
• Ground Resistance testing
using the  clamp method (no
auxiliary rods needed) using
optional current probes
• Includes DataView® software
for data storage, real-time
display, analysis, report
generation and system
configuration
• -Point Fall-of-Potential
measurement with manual or
automatic frequency selection
EST4630
• Measures ground resistance
(- and -Point) Fall-of-
Potential method and soil
resistivity (-Point)
100%
62%
Note the % factor to be used, as
approximated in the table above.
The earth electrode of interest
must be disconnected from its
connection to the site.
Depth
of the
ground
electrode
Distance
to the
inner
stake
Distance
to the
outer
stake
 m  m  m
 m  m  m
 m  m  m
 m  m  m