NOTE
Once a phase is selected as COM, users can not change this selection in the subsequent measurement. For example, if S (or L2) phase is selected, S (or L2) phase is always connected to the COM during measurement of WRS (or WL1L2) and WTS (or WL3L2) in 3φ 3W unbalanced power.
NOTE
1.The "+" sign printed on Panel must face the power source for accurate measurement.
2.If the device under test is a switching power supply, the meter KW, PF and θ reading maybe incorrect.
NOTE
For 3φ3W unbalanced power measurements, WRS or WTS could be negative.
Ensure that all connections are correct before accepting a reading as valid.
9 | 380976 | V3.1 | 6/08 |