电力谐波及漏电钳表PROVA21的特点:电流电压都是真均方根值(TrueRMS)漏电电流分辨率最小是10μA电流电压谐波分析可高达99次99次谐波分析可更了解高频谐波影响(可高达5/6KHz)钩表方式，可做线上谐波分析，不影响正常操作谐波总量百分比（%THD-F）分析波形因素(C.F.)分析高速峰值(Peak)量测(33μsand39μs)可设定CT比(1to250)Model21(50A)and23(100A)瓦特（W,KW），马力（H.P.）视在功率（VA,KVA）,虚功率（VAR,KVAR）功率因素（PF）,相角（Φ）瓦特小时，耗电度数（mWH,WH,KWH）分析IT待机时的耗电量（W,mWH,WH）测量平衡三相电力测量三相电力相序规格(23°C±5°C,请参阅使用说明书以了解最新及更详细的规格)交流瓦特ACWatt(50or60Hz,PF0.5to1.CT=1)Model21(0to50A),Model23(0to100A)范围分辨率读值准确度21(0-30A)读值准确度23(0-60A)读值准确度21(30-50A)读值准确度23(60-100A)0.000–9.999W0.001W±1%±0.02W±2%ofVA±5dgts10.00–99.99W0.01W±1%±0.2W±2%ofVA±5dgts100.0–999.9W0.1W±1%±0.2W±2%ofVA±5dgts1.000–9.999KW0.001KW±1%±0.02KW±2%ofVA±5dgts10.00–99.99KW0.01KW±1%±0.2KW±2%ofVA±5dgts100.0–999.9KW0.1KW±1%±0.2KW±2%ofVA±5dgts1000–9999KW1KW±1%±2KW±2%ofVA±5dgts交流电流ACCurrent(50or60Hz,TrueRMS)范围(Model19,21)范围(Model23)分辨率读值准确度0.30–60.00mA0.30–60.00mA0.01mA±0.5%±5dgts60.0–600.0mA60.0–600.0mA0.1mA±0.5%±5dgts0.030–3.000A0.030–9.999A0.001A±0.5%±5dgts3.00–30.00A10.00–60.00A0.01A±0.5%±5dgts30.00–50.00A60.00–99.99A0.01A±1.0%±5dgts交流电压ACVoltage(50or60Hz,TrueRMS)范围分辨率读值准确度范围分辨率读值准确度3V–250V0.1V±0.5%±5dgts250V–600V0.1V±0.5%±5dgts交流电压谐波分析（百分比%及大小,1到99次)范围分辨率%准确度分辨率大小准确度50V–600V0.1%±0.5%0.1V±0.5%±0.5V交流电流谐波分析（百分比%及大小,1到99次谐波）范围(Model19,21)范围(Model23)分辨率%准确度分辨率大小准确度10.00–60.00mA10.00–60.00mA0.1%±0.5%0.01mA±0.5%±0.1mA60.0–600.0mA60.0–600.0mA0.1%±0.5%0.1mA±0.5%±1mA0.5–3.000A0.5–9.999A0.1%±0.5%0.001A±0.5%±0.01A3.00–30.00A10.00–60.00A0.1%±0.5%0.01A±0.5%±0.1A30.00–60.00A60.00–99.99A0.1%±1.0%0.01A±1.0%±0.1A功率因素（PF）,相角（Φ）(Model21and23)范围(PF)分辨率读值准确度范围(Φ)分辨率读值准确度0.000–1.0000.001±1°-180°to180°(0°to360°