UT50系列(标准型数字万用表)- UT57技术指标基本功能量程基本精度直流电压200mV/2V/20V/200V/1000V (0.05%+3)交流电压200mV/2V/20V/200V/750V (0.8%+20)直流电流20mA/200mA/10A (0.5%+2)交流电流20mA/200mA/10A (1%+20)电阻200W/2kW/20kW/200kW/2MW/20MW (0.1%+2)电容20nF/200nF/2mF/20mF (2%+10)频率2kHz/20kHz (1%+20)