型号 DL-2050/2050GDL-2051/2051G显示 51/2位双真空荧光灯显示DC电压范围120mV至1000V精度0.012%+5counts(*)0.02%+5counts(*)分辨率1μV于120mV慢速测试范围AC电压范围120mV至750V精度0.2%+100counts(*)1.5%+100counts(*)分辨率1μV于120mV慢速测试范围频率20Hz至100kHz40Hz至30kHzDC电流范围12mA至10A精度0.05%+5counts(*)0.1%+8counts(*)分辨率0.1μV于12mV慢速测试范围AC电流范围12mA至10A精度0.5%+100counts(*)1.5%+200counts(*)分辨率0.1μV于12mV慢速测试范围频率20Hz至10KHz40Hz至5kHzdBm精度0.1dBm(*)0.6dBm(*)分辨率0.01dBm