特点 Characteristics:
◆ 测量电压、电流、功率、功率因数/频率
    Measure Vrms, lrms, W, PF/Hz
◆ 电压、电流谐波分析，显示总谐波及0~50次各谐波分量、谐波频谱图，谐波和相对谐波显示可选择 
    Analyze harmonic distortion of voltage and current; display total harmonic, 0~50th harmonic components and harmonic spectrum; optional for   display  of  absolute  and relative harmonic
◆ 电压量程 V range: 10.0~600.0V，电流量程 A range: 0.010~20.00A
◆ Accuracy: ±(0.4% reading+0.1% range+1 digit)
◆ 适合任意波形测量 Can test every kinds of curve
◆ 与PC机通讯，同时提供中、英文版面，在Windows98/2000/XP下运行
    Communication port for PC, running under Windows98/2000/XP