Multifunction Tester
Measurements
39
6. Tap Zmax to toggle the option on and off.
If Zmax is turned on, the Tester compares consecutive measurements. The display shows
the maximum Z
L
(or Z
I
for L-N) value until Zmax is turned off. The Zmax value is saved when
you save the test result.
Note
RCDs in the system will trip if you use L-PE.
7. Connect the leads in a single-phase test to the system live and neutral. To measure line-to-
line impedance in a 3-phase system, connect the leads to two phases.
8. Tap
H. If Auto Start is turned on, the test starts automatically as soon as the mains
voltage is detected and the required test leads are connected.
Wait for the test to complete:
The display shows the line impedance.
The display shows the Prospective Short Circuit Current (PSC).
If Zmax is turned on, the Zmax value shows on the display.
Use the connection shown in Figure 14 for a 3-phase up to 600 V system measurement.
Figure 14. 3-Phase System Measurement
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