To the 8807-01/8808-01 MEMORY HiCORDERs with their popular detachable printers, HIOKI has added the 8807-51/8808-51 MEMORY HiCORDERs with harmonic analysis function. Capable of both instantaneous analysis and time series analysis of harmonics, these units can measure and analyze harmonic current flowing into and out of a commercial power system, as well as harmonic components piggybacking on power line voltage.

The 8807-51 and 8808-51 can analyze harmonic components (up to 40 orders from the fundamental wave) that are included in voltage and current in a power line with a base frequency of 45 to 65Hz. Based on the waveform that was captured, the 8807-51 and 8808-51 can analyze the RMS value, content factor, phase angle, active power, and power phase angle for each order of harmonics. The measurement results can be displayed and recorded as a bar graph, numeric data, or power vector diagram. The 8807-51 and 8808-51 can also display numerically the total RMS value, the total distortion, the active/ reactive/apparent power, and power factor.