Adopt high speed MCU and high accuracy A/D to control and measure, make the test value more accuracy, all of testd signal valueare true virtual value,also use for waveform distortion signal.
The Instrument Function
Ac Measurement Input Voltage(u)、current(i)、power(p)、power Factor(pf)、displacement Factor(df)、frequency (f)、total Harmonic 0～50harmonic、initial Phase Angle、peak Phase Angle、end Phase Angle ,etc
> Voltage measure range:600V/300V/150V/85V/40V/20V/Auto
> Current measure range:20A/10A/4.5A/2A/1.1A/0.6A/0.3A/0.12A/Auto
> IS max input:Voltage:1600V ; Current:50A
> Frequency range:DC,Fundamental Frequency,0.5Hz-99.99kHz,Band width1MHz
> Voltage/Current/Power basic error:±（0.1%reading+0.1%range+1 digital）
> Power factor basic error:±（0.002+0.001/reading+1 digital）
> Displacement factor basic error:±（0.005+0.001/reading+1 digital）
> Frequency basic error:±0.1%reading
