| 交流瓦特AC Watt (50 or 60 Hz, PF 0.5 to 1. CT = 1) Model 21 (0 to 50A), Model 23 (0 to 100A) | | 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 – 9.999 W | 0.001 W | ±1% ± 0.02 W | ±2% of VA ± 5dgts | | 10.00 – 99.99 W | 0.01 W | ±1% ± 0.2 W | ±2% of VA ± 5dgts | | 100.0 – 999.9 W | 0.1 W | ±1% ± 0.2 W | ±2% of VA ± 5dgts | | 1.000 – 9.999 KW | 0.001 KW | ±1% ± 0.02 KW | ±2% of VA ± 5dgts | | 10.00 – 99.99 KW | 0.01 KW | ±1% ± 0.2 KW | ±2% of VA ± 5dgts | | 100.0 – 999.9 KW | 0.1 KW | ±1% ± 0.2 KW | ±2% of VA ± 5dgts | | 1000 – 9999 KW | 1 KW | ±1% ± 2 KW | ±2% of VA ± 5dgts | |
| 交流电流 AC Current (50 or 60 Hz, True RMS) | | 范围 (Model 19,21) | 范围 (Model 23) | 分辨率 | 读值准确度 | | 0.30 – 60.00mA | 0.30 – 60.00mA | 0.01mA | ±0.5% ± 5dgts | | 60.0 – 600.0mA | 60.0 – 600.0mA | 0.1mA | ±0.5% ± 5dgts | | 0.030 – 3.000 A | 0.030 – 9.999 A | 0.001 A | ±0.5% ± 5dgts | | 3.00 – 30.00 A | 10.00 – 60.00 A | 0.01 A | ±0.5% ± 5dgts | | 30.00 – 50.00 A | 6 0.00 – 99.99 A | 0.01 A | ±1.0% ± 5dgts | |
| 交流电压 AC Voltage (50 or 60 Hz, True RMS) | | 范围 | 分辨率 | 读值准确度 | 范围 | 分辨率 | 读值准确度 | | 3V – 250V | 0.1 V | ±0.5% ± 5dgts | 250V – 600V | 0.1 V | ±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 – 600V | 0.1 % | ±0.5% | 0.1 V | ±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 (Model 19, 21) | 范围 (Model 23) | 分辨率 | %准确度 | 分辨率 | 大小准确度 | | 10.00 – 60.00mA | 10.00 – 60.00mA | 0.1 % | ±0.5% | 0.01mA | ±0.5% ± 0.1mA | | 60.0 – 600.0mA | 60.0 – 600.0mA | 0.1 % | ±0.5% | 0.1mA | ±0.5% ± 1mA | | 0.5 – 3.000 A | 0.5 – 9.999 A | 0.1 % | ±0.5% | 0.001 A | ±0.5% ± 0.01 A | | 3.00 – 30.00 A | 10.00 – 60.00 A | 0.1 % | ±0.5% | 0.01 A | ±0.5% ± 0.1 A | | 30.00 – 60.00 A | 6 0.00 – 99.99 A | 0.1 % | ±1.0% | 0.01 A | ±1.0% ± 0.1 A | |
| 功率因素（PF）, 相 角 （Φ）(Model 21 and 23) | | 范围 (PF) | 分辨率 | 读值准确度 | 范围 (Φ) | 分辨率 | 读值准确度 | | 0.000 – 1.000 | 0.001 | ± 1° | -180°to 180°(0 °to 360 °) | 0.1° | ± 1° | |
| 谐波量百分比(%THD-F, 1到99次谐波) 波形因素（Crest Factor, C.F.） | | 范围 | 分辨率 | 读值准确度 | 范围 | 分辨率 | 读值准确度 | | 0.0 – 999.9 % | 0.1% | ± 0.5% ± 5 digits | 1.00 – 99.99 | 0.01 | ± 5% ± 30 digits | |
| 钳部直径 | 约30mm | | 电池规格 | 1.5V SUM-3 x 2 | | 显示 | 4+2+2 位数 LCD | | 耗电量 | 约5mA | | 自动关机 | 30分钟 | | LCD 显示更新速度 | 约每秒两次 | | 每周期取样速度 | 512次（电压电流）, 256次（瓦特） | | 操作温度 | -10° C to 50° C | | 重量 | 200g | | 储存温度 | -20° C to 60° C | | 操作湿度 | < 85% relative | | 储存湿度 | < 75% relative | | 尺寸 | 210 (L) x 62 (W) x 35.6mm (H), 8.3" (L) x 2.5" (W) x 1.4" (H) | | 附件 | 测试棒 x 1, 携带用背袋 x 1, 说明书 x 1, 电池 1.5V x 2 | | 选购 | 鳄鱼夹 | |
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