Introduction GF1021 portable single phase energy meter test system used to test single phase energy meter. Adopt mature signal synthetic and power amplifier technology, high precision voltage source and current source output. Widely used in lab and field, and then as single phase standard source. TECHINICAL SPECIFICAITON Accuracy class 0.05%, 0.1% Power supply One Phase AC 85-265V, frequency 50/60Hz. AC Voltage output Range 57.7V, 100V, 220V, 380V; max 500V Adjustment range (0-120)%RG(1) Adjustment fineness 0.01%RG, 0.1%RG, 1%RG, 10%RG as optional. Stability 0.01%/120s Distortion 0.1% (Non-capacitive load) Output load max 30VA Measuring accuracy 0.05%RG AC Current output Range 200mA, 1A, 5A, 20A, 100A; max 120A Adjustment range (0-120)%RG Adjustment fineness 0.01%RG, 0.1%RG, 1%RG, 10%RG as optional. Stability