特 点:

    a、仪器灵敏度高，对环境本底亦有响应 
    b、采用单片机技术，功能多，体积小 
    c、仪器操作简单，使用方便 
    d、累积剂量、剂量率切换显示 
    e、抗电磁干扰能力强

技术指标：
  1、探测器：硅半导体探测器
  2、测量显示范围:
        剂量率: 0.1 μSv/h~999.9 mSv/h
        累计剂量: 0.0 μSv~9999 mSv
  3、报警阈:
        剂量率: 1 μSv/h~1 Sv/h之间连续可调
        累计剂量: 1 μSv~10 Sv之间连续可调
  4、报警功能:
       以声（蜂鸣器）、光（LED）及LCD指示进行累积剂量及剂量率超阈、电池欠压、工作超时和探测器失效报警。可设置不同累积剂量增量提示声音（声响强度 > 80dB, 距剂量仪30cm处）。
  5、能量响应:<±20%（48 keV ~ 1.5 MeV）
  6、线性误差：1 μSv/h ~ 1 Sv/h，≤15%。
  7、抵冲击和振动：符合IEC1283标准要求
  8、过载特性：大于20 Sv/h
  9、电 源:AA型3.6V电池一节，电池寿命 >1000小时 （50 mSv/年,1.8 Ah）。
  10、欠压指示：当电池电压≤3.1±0.1V时，显示欠压符号
  11、温度特性：
          0 ~ +40℃测量值变化<±10%
         -10 ~ +50℃测量值变化<±15%
  12、相对湿度: 40% ≤RH≤95% （35℃）时测量值变化<±10%
  13、重量：100g
  14、尺寸：90×62×25 mm
 

SDM2000U Personal Dosimeter
Function
    The dosimeter is used to monitor the personal dose equivalent ａnd dose equivalent rate of X, γ radiation. DE, DER ａnd total working time can be read out switched by pressing function button. It incorporates audile, visual ａnd LCD indicator alarms to warn user when preset dose/dose rate threshold levels are exceeded. The threshold can be set random in measurement range. Real-time measurement data can be storage in non-volatile memory that will not lose after power off. Record data can be transmitted through infrared communication to the Record Reader, ａnd the reader can communicates with computer via RS485 mode interface transport. Dosimeter can be used alone or with the reader ａnd computer network data management system.
 
Features
1、Wide-range, low power consumption, resistance to overload
2、Real-time an Non-volatile data record
3、Displaying cumulative dose, dose rate ａnd working hours
4、Audio, visual ａnd LCD indicating over-threshold alarm
5、Threshold can be set in measurement range
6、Standardized measurement data can be managed by professional software via IR communicator
7、Advanced design to ensure the safety ａnd reliability of measurement

Specifications
  
 1、measurement range：Hp（10）: 0.01Sv10Sv
                       Hp（10）: 0.1Sv/h1Sv/h
 2、Alarm threshold
        Continuously set .during  measurement range for dose ａnd dose rate.
        Dose increment alarm: can be set during 1Sv999Sv
        Over time: 16000min
3、Alarm
  Gives audile, visual ａnd LCD indicating alarm for  over-threshold, under-voltage, over time, detector failure ａnd DE increment tips.
Sound intensity > 80dB   （@30cm）
4、LCD Display
     Hp（10）: 0.00Sv9999mSv
     Dose rate Hp（10）: 0.01Sv/h1999mSv/h
5、energy response
       <±30%（50keV1.5MeV）
6、DR response
       <±20%  （1Sv/h10Sv/h）
       <±15%  （10Sv/h1Sv/h）
7、Overload：>20Sv/h
8、Power：One AA size Lithium Battery 3.6V
9、Battery Life >2000h.
10、8 hours last when under-voltage alarms
11、Temperature <±10%,  -10℃+40℃
12、Humidity <±10%,  40%90%RH（35℃）
13、Weight 95g
14、Dimensions 90×62×25（excluding clip）