? Supports single-phase 2-wire, single-phase 3-wire, three-phase 3-wire and three-phase 4-wire systems. Further, the unit has an extra input channel providing enhanced analysis capabilities.An isolated CH4 terminal is provided for AC and DC measurement. • Neutral line measurement you can use for ground fault detection! • Analyze DC power supplies • Performs simultaneous analysis of two isolated systems, such as single phase and three phase lines ? Comes equipped with ?-Y and Y-? conversion functionsSupports ?-Y voltage conversion for three-phase, 3-wire systems, and Y-? voltage conversion for three-phase, 4-wire systems. Selectable display of inter- line voltage and phase voltage. ? Wide selection of clamp on current sensorsIn addition to clamp-on current sensors Models 9660 (100 A), 9661(500 A), 9669 (1000 A), and 9667 (5000 A, flexible), HIOKI also provides the 9694 (5 A) sensor, which is ideal for CT terminal measurement, as well as two other clamps for 5A leak measurement, Models 9657-10 and 9675, to suit every application need. ? Three-phase voltage wiring adapter (optional)Use the wiring adapter to simplify voltage wiring procedures. • 9264-01 for three-phase, 3-wire systems • 9264-02 for three-phase, 4-wire systems ? Full compatibility to 400Hz circuits(Please specify inspection data sheet requirements for 400 Hz test points at time of order.) ? Simultaneous measurement and continuous processingAll data are measured simultaneously and processing is performed continuously, so important fault data is not missed. Further, transient overvoltages up to 2000 V with durations as low as 0.5 ?s are captured without fail. ? Seven different display languagesSelect a display language from Japanese, English, German, French, Spanish, Italian or Chinese .You can switch between the different display languages to suit your location. ? 6.4-inch color LCDThe unit uses a TFT color LCD screen, providing bright display with a wide viewing angle.The color display provides easy viewing of waveforms, both indoors and out. ? Extended measurement of up to one month with internal memoryThe unit's internal memory (13 MB) supports up to one month of continuous recording. * The amount of time available for continuous measurement can be checked when setting the measurement interval. * Use a PC card to record at shorter measurement intervals over longer periods in conjunction with the internal memory