Performance	l Using Cortex M4 high-performance MCU, powerful floating-point computing capabilities, enhanced DSP processing instructions l Extreme operating speed, up to 210DMIPS processing capacity when running at a high speed of 168MHz
Features	l Application scope：Residual current performance test l Test items：Tripping current, closing residual current action time, abrupt residual current action time
Main parameters	l Residual current： 50mA：0.0-50.0mA（resolution：0.1mA） 100mA：50.2-100.0mA（resolution：0.2mA） 210mA：101-210mA（resolution：1mA） l Frequency： 50Hz、60Hz、150Hz、400Hz、700Hz、1kHz、2kHz、3kHz l Waveform： l AC、0°、90°、135°、DC_2P、DC_3P、DC_Sm、F、IC_CPD l Polarity: plus, minus l Added DC：plus DCcurrent, minus DCcurrent, None l Current measurement accuracy：1%±1digitals l Time display accuracy：0.1ms