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DT-9053电路分析仪进行了评估，并按照符合绝缘类，Ⅱ度污染，符合IEC- 644室内使用
| 范围 | 分辨率 | 基本精度 | |
| 线电压 | 85.0-250.0VAC | 0.11V | ±1.0%rdg±0.2dgts |
| 峰值线电压 | 121.0-351.0VAC | 0.1V | ±1.0%rdg±0.2dgts |
| 频率 | 45.0-65.0Hz | 0.1Hz | ±1.0%rdg±0.2dgts |
| 减少电压% | 0.1%-99.9% | 0.10% | ±2.5%rdg±0.2dgts |
| 电压载入 | 10.0-250.0VAC | 0.1V | ±2.5%rdg±0.2dgts |
| 中性电压 | 0.0-10.0VAC | 0.1V | ±2.5%rdg±0.2dgts |
| 阻抗接地热电压 | 0.00Ω-3.00Ω>3Ω | 0.01Ω | ±2.5%rdg±0.02dgts |
| GFCL工作时间 | 1ms至6.5ms计数器 | 1ms | ±1.0%rdg±2ms |
| GFCL工作电流 | 6.0-9.0mA | 0.1mA | ±1.0%rdg±2mA |
| EPD工作电流 | 30.0-37.0mA | 0.1mA | ±1.0%rdg±2mA |
