GRT350
‐
en
‐
GB_v1.3
12/16
5
Operation
Battery
Voltage
check
Press
the
"ON/OFF"
button,
if
"Battery
Low"
appears
on
the
display,
replace
the
batteries.
Earth
Voltage
measurement
1.
Connect
the
test
leads
as
shown
below.
MAX.
AC 300V
P
2
C
2
C
1
P
1
H
S
E
ES
1
2
(1)
Earth
electrode
(rod)
under
test
(2)
Test
spike
2.
Press
the
"ON/OFF"
button
and
wait
for
“Select
Function”
to
appear
on
the
display.
3.
Press
the
"
►
"
button
3
times
and
wait
for
"ACV"
to
appear
on
the
display.
4.
Press
the
"TEST/STOP"
button.
5.
The
earth
voltage
will
appear
on
the
display
if
it
is
present.
6.
Press
SAVE
to
save
the
measurement
in
Log
memory.
7.
Press
ESC
to
return
to
the
“Select
Function”
display.
Measurement
Considerations
Two
‐
terminal
testing
of
earth
resistance
is
appropriate
for
most
general
purpose
testing
in
normally
conductive
soil.
However,
two
‐
terminal
measurements
include
test
lead
and
contact
resistance
in
the
measurement
and
the
result
will
be
a
reading
slightly
higher
than
the
true
earth
resistance.
When
measured
results
are
higher
than
desired
or
if
measurement
directives
require
multi
‐
terminal
techniques,
switch
to
the
3
or
4
terminal
techniques
as
needed.
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.com
1.800.561.8187
