型 号 | 2677 | 2677A | 2677B | 2677C | 2677E | 额定电压 | 2500V,5000V | 500V,1000V,2500V,5000V | 5000V,10kV | 工作电压 | 额定电压× (1±10%) | 测量范围上限值 | 100GΩ,200GΩ | 25GΩ,50GΩ,100GΩ,200GΩ | 200GΩ | 最大误差 | ±5%RDG,±10%RDG | 最大误差为±5%RDG的范围 | (0.01~50)GΩ (0.02~100)GΩ | (0.0025~12.5)GΩ;(0.005~25)GΩ (0.01~50)GΩ;(0.02~100)GΩ | (0.02~100)GΩ | 最大误差为±10%RDG的范围 | (0.005~0.01; 50~100)GΩ (0.01~0.02;100~200)GΩ | (0.00125~0.0025;12.5~25)GΩ (0.0025~0.005;25~50)GΩ (0.005~0.01; 50~100)GΩ (0.01~0.02;100~200)GΩ | (0.01~0.02)GΩ (0.100~200)GΩ | 数字显示值的偏差 | 与模拟指示值的差 ≤±5%RDG | 输出短路电流 | ≥3mA | ≥5mA | ≥3mA | ≥5mA | ≥2mA | 吸收比、极化指数的测量范围 及最大误差 | 测量范围:1~19.99; 最大误差:±(5%RDG+1d) | 残压自泄时间 | ≤30S(0.1μF) | 抗干扰能力 | 2mA AC50Hz | 输出电压显示误差 | 2%RDG+1d |
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