Press
Hz/OPTIONS
EARTH
to
EARTH COU-
PLING
• If you want to eliminate the resistance of the measurement leads, you can
use lead compensation (
2nd + START
) before starting the actual coupling
measurement (see § 5.2.1).
•
•
• The screen displays
EARTH COUPLING 1
1
in the connection dia
• Stop the measurement by pressing the
START/STOP
button. The
MEM
Press the
MEM
• The screen now displays
EARTH COUPLING 2
surement on the second earth system (measurement of R
2
). For this second
H (Z)
and
S (Y)
electrodes in the same positions as
• Store this result in the same memory location as before by pressing the
MEM
button twice.
• The screen now displays the message
EARTH COUPLING 3
. Disconnect
terminal
S (Y)
H
(Z)
connected to earth 1 and terminal
E (X)
to earth 2.
• Record this result by pressing the
MEM
button twice.
• EARTH COUPLING 4
and the results of the measurements are displayed.
R
C
= (R
1
2
)/2
C
1
= R
C
/R
1
and C
2
= R
C
/R
2
R
A
= R
1
C
R
b
= R
2
C
• To display all of the measurement parameters, press the
MR
button.
•
then
x 4
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Summary of Contents for 6470-b
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