DL9120 / DL9130
Operating Instructions
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connections to the system under test before retrying the
test.
If the warning persists in 3 wire mode then there is a
potential hazard with the circuit under test.
Rotate the rotary switch until Ze/Zs High is selected. Functions keys F1-
F4 have are used to select the options below:
F1
F2
F3
F4
L-PE loop/
L-N loop
select
Z Max
Not used
Auto Start
The DL9120 / DL9130EV is capable of performing both 2 wire and 3 wire
High Current Loop / Line Impedance tests on single phase installations.
In order to perform 2 wire tests the correct connection setting (F1) must
match the 2 wire connection being made.
For two wire Line Impedance the connection setting (F1) must be set to
L-N and the red and blue must be connected to live and neutral
respectively.
For two wire Loop Impedance the connection setting (F1) must be set to
L-PE and the red and green must be connected to live and earth
respectively.
In 3 wire mode the test will be performed to the L-N / L-PE setting, all
three live to red, neutral to blue and earth to green connections must be
made.
If the DL9120 / DL9130EV is set to auto-start as soon as the correct
connections are made the test will start.
Note: Connections must not be changed (removed or added) when
active tests are being run.
Tip: If the DL9120 / DL9130EV is set in Auto mode you can change
connection method in between tests. By always connecting
the Live (Red) connection last this will stop the test starting
while you may still be connecting the earth or neutral
connection for a 3 wire test.
Note: When performing 2 wire tests should a potential hazardous
touch voltage be determined due to the impedance of the
circuit under test, the DL9120 / 9130EV will stop immediately
indicating
“3 LEAd”. If this happens connect all three
connections to the system under test before retrying the test.