德国MI VM-3000汞蒸气...

德国MI VM-3000汞蒸气测汞仪参数指标

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汞蒸气监测仪VM-3000技术参数:

Measuring principle: 测量原理:UV-Absorption紫外线吸收Wavelength: 波长:253,7 nm253,7nmUV source: 紫外光源:electrodeless low-pressure mercury lamp (EDL)无极低压汞灯(EDL)Measuring cell: 测量单元:fused silica, heated to avoid condensation熔融石英,加热以避免冷凝Stabilization method: 稳定方法:lamp control by reference beam feedback; Auto-zero通过参比光束反馈控制光源;自动归零Measuring ranges: 测量范围:range I: 0.1 to 100 &micro;g/m&sup3; (0.01-10 ppb)范围Ⅰ:0.1-100&micro;g/m&sup3;(0.01-10 ppb)range II: 0 to 1000 &micro;g/m&sup3;范围Ⅱ:0-1000&micro;g/m&sup3;range III: 0 to 2000 &micro;g/m&sup3; (0-200 ppb)范围III:0-2000&micro;g/m&sup3;(0-200 ppb)Sensitivity: 灵敏度:0.1 &micro;g/m&sup3; (0.01 ppb) 0.1&micro;g/m&sup3;(0.01 ppb)Response time 响应时间(99% signal): (99%信号):< 1 second ; continuous operation and real-time reading<1秒; 连续运行和实时读值Alarm: 报警方式:3 levels programmable 3级可编程Status alarms: 状态报警:measuring cell soiled, battery state (option, UV source exhausted测量单元受污染,电池状态(选项:紫外光源耗尽)Display: 显示方式:带背景照明的graphical LC display with background illumination图形液晶显示器Signal outputs: 信号输出:4...20 mA; RS 232 for PC or printer ; data logger function (option) 4 ... 20 mA;RS-232接口连接PC或打印机,数据记录功能(可选)Battery option: 电池选项:external 12 DC source; optional 12 V batteries integrated, ca.外部12V直流电源;可选12V集成电池,工作时长5h



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