RD-30 Operations ManualConfigurations Available13For Example: RD-30-332200 Amp 3 current input standard complete with built-in comparator, harmonic analysis, 200ampcurrent inputs, no display, rack mount. Measurement functions include +/- Whrs, Volts, Amps,VARhrs, VAhrs, Qhrs, Watts, VARs, VA, Phase Angle, Power Factor, Frequency, Min & MaxMeasurements for Volts, Amps, Watts, VARs, VA, Vhrs, Ahrs, V2hrs, A2hrs, Phase Angle, PowerFactor, Frequency.