... quantity such as U, I, P, Q, PF, F Two energy pulse outputs RS-485 communicationHarmonic MeterFunctionsFunctionPD194Z ... -9HYReal Time MeasurementU√I√P,Q,PF√F√Energy MeasurementActive Energy√Reactive Energy√Bidirectional Measurement ... Output1Communication Interface1Technical parameters ParameterMeasurement AccuracyU,I,P,Q,PF:0.5%; EP:0.5S,EQ:1%; ...