â·ÃÊͺ¶ÒÁÃÒ¤Ò The Extech PQ3470 is a 3-Phase Graphical Power & Harmonics Analyzer/Datalogger for up to 30,000 sets of measurements PQ3470: 3-Phase Graphical Power & Harmonics Analyzer/Datalogger Datalogging Power Analyzer (up to 30,000 sets of measurements) Features: Large dot-matrix, sun-readable, numerical, backlit LCD with easy-to-use onscreen menu Full system analysis with up to 35 parameters: V (phase-to-phase), V (phase-to-ground) A (phase-to-ground) KW / KVA / KVAR / PF (phase) KW / KVA / KVAR / PF (system) KWH / KVAH / KVARH / PFH (system) Phase angle Optional 200A, 1200A Current Clamps or 3000A Flexible Current Probes (sold separately) Adjustable Current Transformer CT (1 to 600) and Potential Transformer PT (1 to 1000) ratio for high power distribution systems Simultaneous display of Harmonics and Waveform Analysis of Total Harmonic Distortion (THD) Graphic Phase diagram with 3-Phase system parameters 3-phase Voltage or Current Unbalanced Ratio (VUR, AUR) and unbalanced factor Capture Transient events (including dip, swell, and outage) with programmable threshold (%) Log up to 30,000 reading on a removable SD memory card in Microsoft Excel® format Wide sampling rate range (2 seconds to 2 hours) Built-in Clock and Calendar Complete with 4 voltage leads with alligator clips, 8 AA batteries, SD card, 100-240V AC adaptor and case. Clamp probes sold separately. Specifications: AC Voltage (True rms) Range: 600.0V AC Voltage (True rms) Basic Accuracy: ±(0.5%rdg) AC Current Range: 3000A AC Current Basic Accuracy: ±(0.5%rdg) Active Power Range: 9.999MW Active Power Basic Accuracy: ±(1.0%rdg) Apparent Power (MVA) Range: 9.999MVA Apparent Power (MVA) Basic Accuracy: ±(1.0%rdg) Reactive Power (MVAR) Range: 9.999MVAR Reactive Power (MVAR) Basic Accuracy: ±(1.0%rdg) Power Factor Range: 0.00 to 1.00 Power Factor Basic Accuracy: ±0.04 Frequency Range: 45Hz to 65Hz Frequency Range Basic Accuracy: ±0.1Hz Phase Range: -180° to +180.0° Phase Basic Accuracy: ±1° Harmonics Range: 1 to 50th Harmonics Basic Accuracy: ±2% (1 to 20); ±4% (21 to 31) Crest Factor Range: 1.00 to 99.99 Crest Factor Basic Accuracy: ±(5%) Current Clamp Input Range: 200mV, 300mV, 500mV 1V, 2V, 3V; user-selectable Current Clamp Input Basic Accuracy: ±(0.5%rdg) Peak AC Voltage Accuracy Basic Accuracy: ±(5%) Peak AC Current Accuracy Basic Accuracy: ±(5%) Active Power Energy (MWH) Range: 0.0kWh to 9.999MWH Active Power Energy (MWH) Basic Accuracy: ±(2.0%rdg) Apparent Power Energy (MVAH) Range: 0.0KVAh to 9.999MVAH Apparent Power Energy (MVAH) Basic Accuracy: ±(2.0%rdg) Reactive Power Energy (MVARH) Range: 0.0kVARh to 9.999MVARH Reactive Power Energy (MVARH) Basic Accuracy: ±(2.0%rdg) Datalogging: 30,000 readings (2GB SD memory Card) Dimensions/Weight: 8.86 x 4.92 x 2.52" (225 x 125 x 64mm) / 2.2lbs (1010g) 3-Phase Graphical Power Datalogger Extech Harmonics Analyzer Power Analyzer PQ3470 à¤Ã×èͧÇÔà¤ÃÒÐËì¡ÓÅѧ俿éÒ