Input Phase: 1-phase / 2-wire + Ground Input Voltage: 115/230Vac ? 15% Power Rating: 1000VA 0-300V: 4.2A Phase: 1-phase / 2-wire + Ground High Range: 0-300V Resolution: 0.1V Accuracy: ± (0.5% of setting + 2 counts) Resolution: 0.1Hz at 45 - 99.9Hz, 1Hz at 100 - 500Hz Accuracy: ± 0.2% Harmonic Distortion: = 0.5% (Resistive Load) Crest Factor: = 4 to 1 Load Regulation: ? 0.5% (Resistive Load) Protection: Over-Current, Short-Circuit, Over-Temperature Operating Temperature: 32?F - 104?F (0?C - 40?C), 80% Relative Humidity Altitude: Below 6,500 Feet 4 Digital LED meters: Frequency, Voltage, Current, Power or Power Factor (simultaneously) Memory (Standard): 3 Memories, 3 Programmable Parameters per Memory for: Voltage, Frequency, Current Limit Calibration: Front Panel Calibration Auto-Voltage Adjust: Provides improved voltage regulation to within ? 0.1V |