Personal gamma radiation dosimeter individual DKG-21 EcotestCARD

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The radiation monitoring badge EcotestCARD allows storing dose accumulation history with real time reference in the non-volatile memory, and communicating it to the computer. If the programmed threshold levels of gamma dose or its rate are exceeded, light and audio alarms are actuated.

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Purpose of Use

  • Measurement of gamma and X-ray radiation individual dose equivalent rate (DER).

  • Measurement of gamma and X-ray radiation individual dose equivalent (DE).

  • Clock, alarm clock.



  • Stand-alone use or use within automated system of personal dosimetry control.

  • Storage of dose accumulation history in the nonvolatile memory with real time reference.

  • Transfer of dose accumulation history through the infrared port to the computer.

  • Blocking the mode of power supply switch off until the data reading procedure finished.

  • DER and DE threshold levels programming of gamma and X-ray radiation with the help of the computer or manually with control keys.

  • Blocking certain indication modes in response to the computer command.

  • Light and audio alarms when programmed threshold levels exceeded on DER and DE of gamma and X-ray radiation.

  • Display automatic switch off if current gamma background is lower than the preset threshold level with instant switching on at:

    – pressing any control key;

    – gamma background increase above the preset threshold level;

    – alarm clock ringing.

  • Periodic self-testing of batteries and detector.

  • Energy-compensated Geiger-Muller counter.


Measurement ranges and main relative errors:
– gamma and X-ray radiation individual dose equivalent rate HP(10) µSv/h 0.1…1 000 000;
(1…10 µSv/h; ±20%;10 µSv/h…1 Sv/h; ±10%)
– gamma and X-ray radiation individual dose equivalent HP(10) mSv 0.001…9 999;
Energy range of detected gamma and X-ray radiation and energy dependence MeV 0.05…6.0;
(0.05…1.25; ±25%)
Recording resolution of dose accumulation history in the nonvolatile memory minutes 5…255
Time of data storage in the nonvolatile memory years not less than 10
Data exchange rate through infrared port bit/s 38 400
Positive data exchange distance between the dosimeter and the infrared port adapter m not more than 0.3
Lithium battery (CR2450) life* hours 2 200
Operating temperature range °C -10…+50
Weight kg 0.08
Dimensions mm 90x55x10
*under gamma background not more than 0.3 µSv/h, switched off alarm system


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