Doza DKG-05D Manual de operação - Página 6

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1.3 Dosimeter components

The dosimeter is a miniature direct reading device with the hermetic casing made of

shock-resistant plastic.

The inner side of the dosimeter has the clip to fix it on the operator chest pocket.

The dosimeter is used in the complex with УС-05С reader and КЗУ-27 cassette charger.

Overall and connection dimensions of the dosimeter, УС-05С, and КЗУ-27 are given in

Annex С.

1.4 Dosimeter design and operation

1.4.1 Two silicon detectors are used for the radiation detection (rough and fine ones).

Detectors are switched of in a sequence depending upon the measured radiation dose rate. The

ionizing radiation flow is transformed into electric pulses in the detector.

Dosimeter operation is controlled by the microprocessor responsible for different

functions including the transformation of electric pulses into rate of

self-test functions, functions of data accumulation and storage for rate of

measurements, data exchange with PC, accumulator battery charge control etc. measurement

result is displayed in the indicator.

General view of the dosimeter is shown by Figure 1.1:

1) red light diode – doubling of sound signals in case of alarm or operation mode change;

2) combined LCD indicator;

3) sound signal source to provide sounds in case of operation mode change, rate of

 

 

and

threshold excess and battery discharge;

4) indicator light button;

5) MODE button to switch on/off the power and to change the following dosimeter

Figure 1.1 — General view of dosimeter

ФВКМ.412113.005РЭ

 

 

and

values,

 

 

and

 