DL9110 / DL9118
Operating Instructions
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To make an insulation resistance measurement, press and hold the
TEST key. The resistance between the test probes is displayed until the
TEST key is released. Alternatively, use the Test Lock function to allow
measurements to be started or stopped with 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.
5.6 Voltage Measurement and Phase Rotation
Rotate the rotary switch until the V test is selected. The DL9110 /
DL9118 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.
DL9118 only: 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.
5.7 Single Phase High Current Earth Loop Impedance / Line
Impedance
The DL9110 / DL9118 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).
Rotate the rotary switch until Ze/Zs High is selected. Functions keys
F1-F4 have are used to select the options below:
