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Selling is 1 unit of Voltech PM3000A 1 Channel Universal Power Analyzer with 2 set of cables. However , there are 3 channels appear behind. When press CH2 and CH3, it shows invalid. Not sure how to activate the other channels.The unit powers up as shown in the photograph. This unit comes from a factory that manufacture electronic ballast. I have no knowledge to test the equipment. Brief Description of the equipment. Voltech PM3000A Single or 3 Channel Universal Power Analyzer * Universal application: -single- phase, three-phase, and DC rectifier measurements * Harmonic analysis of voltage current and power on each phase and neutral to the 99th harmonic * Accurate with distorted waveforms and poor power factors * Built-in integrator for measuring energy maximum demand or averaged values * Exceptionally wide input ranges on voltage (0.2 to 2000Vpk) and current (10mA to 200 Apk) * Measures short term events, such as start-up current and burst power * Accepts inputs directly or from external shunts, current transformers and voltage transformers * Provides eight programmable outputs for chart recorders or scopes * Wide frequency range: -DC to 1MHz * Full system capability with IEEE488.2, RS232 and Centronics interfaces as standard Real Power; Apparent Power; Reactive Volt-Amperes; Voltage; Current; Power Factor; Peak Voltage; Peak Current; Voltage Crest Factor; Current Crest Factor; Impedance; Peak Inrush Current. Note: This model is also available in a single phase only (single channel) version. Consult your sales representative for assistance in selecting the correct model for your application. * Ranges (Auto or Manual)(12 ranges 1-2-5 sequence): 0.5V to 2000Vpk (1400Vrms) * Frequency Range: DC and 0.1Hz to 500kHz * Current (A) Ranges (Auto or Manual)(12 ranges 1-2-5 sequences): INT: 0.05A to 200Apk (30A rms); EXT: 6.25mV to 2.5pK (1.5Vrms) * Power (W) Ranges (Auto or Manual)(144 ranges corresponding to V and A): 25mW to 400kW pk (with scaling to 100,000MW) * Apparent Power (VA) Ranges (Auto or Manual)(144 ranges corresponding to V and A): 25mVA to 400kVA pk (with scaling to 100,000MVA) * Reactive Power (VAR) Ranges (Auto or Manual)(144 ranges corresponding to V and A): 25mVAr to 400kVAr pk (with scaling to 100,000MVAr) * Power Factor (PF) Range: ±0.000 to ±1.000 * Crest Factor Range: 1.000 to 19.999 * Inrush Current Range: 0.1A to 200Apk (with scaling to 20 MA) * Impedance Range: 0.0001 ohm to 9.999 Mohm * Frequency Range: Internal Source 5Hz to 1MHz * Harmonic Analysis Range: DC and Fundamental to 99th harmonic for voltage and current. Maximum harmonic = 1MHz * Integrator Range: 0.001 W.hr to 100,000MW.hr |
