47
Simplified Measurement for Earth Resistance
(Simplified Measurement Method, Two-pole Method)
1
3
4
6
2
7
H(C)
E
5
1
Remove the cover of the
measurement terminals.
2
Connect the E terminal and H(C)
terminal of this device respectively
with the L9787 test lead (black)
and L9787 test lead (red).
3
Press the
button to turn it on.
4
Press
Fn
button to display
(two-pole method).
A measured value (approx. 0 V) of the earth
potential appears
.
5
Connect (short-circuit) the tips of
test leads.
6
Press
MEASURE
button.
A measured value of approx. 0
Ω
appears in
approx. 3 seconds, and
lights up.
When
appears below the
measurement terminal, a test lead may not
have been connected to the measurement
terminal, or the lead may have an open
circuit. Check the connection and perform
cable check with a tester etc.
7
Pressing
0
Ω
ADJ
button will turn
on and complete zero
adjustment.
How to disable zero adjustment
Hold down
0
Ω
ADJ
button while
is on.
www.calcert.com
1.800.544.2843
0
5
10
15
20
25
30
