Extech Instruments 382100

28 382100-en-US_V2.8 02/22
5.4 3 Φ 4W (three phase - four wire) Measurement
1. Power the instrument ON by pressing the POWER KEY, and then press 1Φ 3Φ KEY to
select the 3Φ 4W system, the selected name of the system will appear on the bottom left
hand side of the display for screen 2
2. Connect the line voltage L1, L2, L3 and Vn to V1, V2, V3 and N terminals of the instrument
3. Connect the three (3) Clamps (A1, A2, A3) to the conductors A1, A2, A3
4. Connect the Clamps (A1, A2, A3) to the meter’s A1, A2, A3 terminals
5. The related measurement factors will appear on the display
6. Measurement definitions can be found in Appendix 1 (5-11)
Fig. 5-4