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                        |  | SM-8213 | SM-8215 | SM-8220 |  
                        | 测试电压&量程 | 5V | 2.5x104 to 1x1011Ω |  |  |  
                        | 10V | 5x104 to 2x1011Ω |  | 5x104 to 2x1014Ω |  
                        | 15V | 7.5x104 to 3x1011Ω |  |  |  
                        | 25V | 1.25x105 to 5x1011Ω |  | 1.25x105 to 5x1014Ω |  
                        | 50V | 2.5x105 to 1x1012Ω | 2.5x105 to 1x1012Ω | 2.5x105 to 1x1015Ω |  
                        | 100V | 5x105 to 2x1012Ω | 5x105 to 2x1012Ω | 5x105 to 2x1015Ω |  
                        | 250V |  | 1.25x106 to 5x1012Ω | 1.25x106 to 5x1015Ω |  
                        | 500V |  | 2.5x106 to 1x1013Ω | 2.5x106 to 1x1016Ω |  
                        | 1,000V |  | 5x106 to 2x1013Ω | 5x106 to 2x1016Ω |  
                        | 测试电压精度 | 设定电压值的±3% |  
                        | 输出电流 | 最大50mA | 最大2mA |  
                        | 测量精度 | ±10%(20℃时,在每个量程的最小值的10次量程以内),但SM-8213的108量程时,为±20% |  
                        | 显示 | LCD(数字&模拟显示) |  
                        | 标准功能 | 时钟、比较器(报警)、远程启动、HV-EN、RS-232C |  
                        | 环境温度 | 0-40℃ | 5-35℃ |  
                        | 环境湿度 | 80%RH以下 |  
                        | 供电电源 | AC100,120,220或240V±10%可选,50/60Hz,最大25VA |  
                        | 体积和重量 | 284mmWx139mmHx215mmD, 4.3kg |  |