技术参数
 Function Range Resolution Accuracy  DC Voltage  2V/20V/200V/600V 1mV  ±(1.5%+3d) AC Voltage      200V/600V   1mV ±(1.5%+3d)  Resistance 200/2k/20k/2M/20MΩ   100mΩ ±(0.8%+3d) Leakage switch  30/75/100/200/300/500mA   S=0.2S~0.4S ±(3%+3d) Frequency 400Hz  0.1Hz ±(1%+1d) Phase  ABC/ACB Positive/Negative   50V~450V