DL9120 / DL9130
Operating Instructions
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measurements to be started or stopped with a single press of the TEST
key.
During a measurement, the measured value is shown in the primary
display and the measured test voltage is shown in the secondary display.
5.5 Voltage Measurement and Phase Rotation
F1
F2
F3
F4
Not Used
Not Used
Not Used
Not used
Rotate the rotary switch until the V test is selected. The DL9120 /
DL9130EV will automatically measure any voltage present on the test
probes. The TEST key is not required.
The function keys do not perform any operations while in Voltage mode.
When an AC voltage is applied to the test probes, the frequency of the
measured voltage is shown in the secondary display.
The voltage displayed will be the larger of voltages connected across the
RED-BLUE or RED-GREEN test terminals, the connections used to
display the voltage will also be indicated on the LCD.
When a 3 phase voltage is connected to the test probes, the voltage
between the red and black is displayed in the primary display and the
phase sequence icon is shown on the display. When the test probes are
connected as follows: RED to L1, GREEN to L2, BLACK to L3 the display
icon will show L1 L2 L3.
5.6 Single Phase High Current Earth Loop Impedance /
Line Impedance
The DL9120 / DL9130EV will only allow the Earth Loop
Impedance test to be performed if the correct voltages are
detected between line-earth (L-PE illuminated), line-neutral
(L-N illuminated) and neutral-earth (N-PE
not
illuminated).
When performing 2 wire tests and under certain
circumstances, a potential hazardous touch voltage could
be determined due to the impedance of the circuit under
test, the DL9120/9130 will stop the test immediately
indicating
“3 LEAd”. If this happens, connect all three