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CHAPTER 4: ELECTRICAL INSTALLATION 4.2.11 (8) Current-Only Measurement (Three-Phase) For this wiring type, select 3 EL WYE (3 Element Wye) in the meter programming setup. FIGURE 4–12: Current-Only Measurement (Three-Phase) Note 4–16 Even if the meter is used only for current measurement, the unit requires a AN volts reference. Please ensure that the voltage input is attached to the meter. AC control power can be used to provide the reference signal. EPM 2200 MULTI-FUNCTION POWER METERING SYSTEM – USER GUIDE