45
12. PHASE ROTATION TESTS
1. Operate the Power button and turn on the instrument. Turn the rotary switch and select
the PHASE ROTAION function.
2. Insert the Test Leads into the instrument. (Fig.43)
3. Connect each test leads to a circuit. (Fig.44)
L1
L3
L2
4. Results are displayed as follows.
● When a message “No 3-phase system” or “---” is displayed,
the circuit may not be a
3-phase system or a wrong connection may have been made.
Check the circuit
and the connection.
● Presence of Harmonics in measurement voltages, such as an inverter power supply,
may influence the measured results.
Fig.43
Correct phase sequence
Reversed phase sequence
Fig.44
Fig.45
Fig.46
