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)銆乧urrent(i)銆乸ower(p)銆乸ower Factor(pf)銆乨isplacement Factor(df)銆乫requency (f)銆乼otal Harmonic 0锝50harmonic銆乮nitial Phase Angle銆乸eak Phase Angle銆乪nd 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:卤锛0.1%reading+0.1%range+1 digital锛
> Power factor basic error:卤锛0.002+0.001/reading+1 digital锛
> Displacement factor basic error:卤锛0.005+0.001/reading+1 digital锛
> Frequency basic error:卤0.1%reading
