ECOTEST DKG-21 Manuale utente

DKG-21

PERSONAL GAMMA RADIATION DOSIMETER

Operating manual

ВІСТ.412118.031-02.02 НЕ

CONTENTS

1 GENERAL GUIDELINES .....................................................................3

2 MAIN INFORMATION ABOUT THE DOSIMETER..........................4

3 DESCRIPTION AND OPERATION .....................................................5

4 PROPER USE OF THE DOSIMETER ................................................27

5 TECHNICAL MAINTENANCE..........................................................51

6 STORAGE............................................................................................67

7 SHIPPING ............................................................................................67

8 DISPOSAL ...........................................................................................69

9 WARRANTY .......................................................................................70

10 PACKING CERTIFICATE ................................................................72

11 CERTIFICATE OF ACCEPTANCE..................................................73

12 PERFORMANCE RECORDS OF THE DEVICE .............................74

13 CLAIMS .............................................................................................75

14 ACCEPTANCE AND WARRANTY.................................................76

APPENDIX А..........................................................................................77

APPENDIX B..........................................................................................79

APPENDIX C..........................................................................................82

APPENDIX D..........................................................................................83

APPENDIX Е ..........................................................................................84

APPENDIX F ..........................................................................................85

APPENDIX G..........................................................................................86

APPENDIX H..........................................................................................90

APPENDIX I ...........................................................................................92

LIST OF ABBREVIAITONS .................................................................93

This operating manual of ВІСТ.412118.031-02.02 НЕ type contains all

information necessary for studying, proper use of DKG-21 dosimeter of

gamma radiation (hereinafter called the dosimeter) and full realization of

its technical possibilities.

Before operating the dosimeter, the user should be instructed on safety

regulations and radiation safety, and should study this operating manual.

1 GENERAL GUIDELINES

1.1 Carefully study the operating manual (hereinafter called the OM)

before using the dosimeter.

1.2 The OM should always be kept with the dosimeter.

1.3 All records in the OM should be accurate and clear. Notes made in

pencil, erasures and uncertified corrections are not allowed.

1.4 When the dosimeter is handed over to another company, summary

records on operation shall be certified with a seal of the company, which

hands over the dosimeter.

2 MAIN INFORMATION ABOUT THE DOSIMETER

The dosimeter meets the requirements of ТУ У 33.2-22362867-

010:2007 technical specifications, and is registered in the State Register for

Measuring Instruments, accepted for application in Ukraine. The State

The dosimeter is intended for use both independently and as a part of

the automated system of personal dosimetry control (hereinafter ASPDC)

included in the State Register for Measuring Instruments, accepted for

application in Ukraine under No. У1816-07.

2.3 The dosimeter contains no precious materials.

Manufacturer:

Private Enterprise “SPPE “Sparing-Vist Center”

33 Volodymyra Velykoho Str., Lviv 79026, Ukraine.

tel.: (+38032) 242-15-15; fax: (+38032) 242-20-15.

E-mail: sales@ ecotest.ua.

3 DESCRIPTION AND OPERATION

3.1 Purpose of use

3.1.1 The dosimeter is designed to measure individual dose equivalent

)10(

ofgammaandX-rayradiation(hereinafter–DE)andindividualdose

equivalent rate

)10(



(hereinafter –DER) of gamma and X-ray radiation.

3.1.2 The dosimeter can be used at industrial enterprises and companies

that deal with gamma and X-ray radiation sources.

3.2 Technical specifications

3.2.1 DER measurement range varies from 0.1 µSv/h to 1.0 Sv/h.

3.2.2 Main relative permissible error limit of DER measurement at 0.95

confidence probability is:

- 20 % - in the DER range of 1.0 to 10 μSv/h (included);

- 15 % - in the DER range of 10 μSv/h to 1.0 Sv/h.

3.2.3 Measurement range of DE in the DER range of 0.1 µSv/h to

1.0 Sv/h varies from 0.001 to 9999 mSv.

3.2.4 Main relative permissible error limit of DE measurement in the

DER range of 1.0 µSv/h to 1.0 Sv/h in the DE range of 0.01 to 9999 mSv

at 0.95 confidence probability is 15 %.

3.2.5 Complementary relative permissible error limit of gamma

radiation DER and DE measurement caused by ambient temperature

change from - 20 0С to + 50 0С is 5 % per each 10 0С of deviation from

+ 20 0С.

3.2.6 Energyrangeof registered gamma radiation is from0.05 to 6.0 MeV.

3.2.7 Energy dependence of gamma radiation DER and DE

measurement in the energy range of 0.05 to 1.25 MeV relative to

0.662 MeV energy is not more than ± 25 %.

3.2.8 Anisotropy at gamma quantum incidence at solid angle of ± 600

relative to the main measurement direction (perpendicular to the front panel

of the dosimeter), not more than:

- 25 % - for 137Cs and 60Co radionuclides;

- 85 % - for 241Amradionuclide.

3.2.9 Time of operating mode setting at DER measurement, not more

than:

- from 1∙10-6 Sv/h to 5∙10-6 Sv/h (inclusive), maximum 30 minutes;

- from 5∙10-6 Sv/h to 2∙10-5 Sv/h (inclusive), maximum 5 minutes;

- from 2∙10-5 Sv/h to 1.0 Sv/h, maximum 3 min.

3.2.10 Time of DER measurement, not more than:

- 10 s –in the DER range of 1.0 μSv/h to 10.0 μSv/h;

- 5 s –in the DER range of 10.0 μSv/h to 1.0 Sv/h.

3.2.11 Minimum DE measurement time expressed in seconds should

not exceed the value calculated by the formula:

, (1.1)

where

)10(



- a numeric value of DER in µSv/h.

)10(

7200

t

3.2.11.1 The minimum time of DE measurement expressed in seconds,

when the main relative permissible error limit of measurement complies

with the requirements of 3.2.4, does not exceed the value, calculated by the

formula:

, (1.2)

where

)10(



- is a numeric value of DER in µSv/h.

3.2.12 Continuous operation time when powered from freshly charged

storage battery under normal background is at least 3000 hours.

3.2.13 Unstable readings during 8 hours of continuous operation, not

more than 5 %.

3.2.14 The dosimeter is powered from Li-ion storage battery of 3.2 to

4.2 V voltage and a rated capacity of 120 mAh.

Note. Operating DC supply voltage - 3.7 V.











+= )10(

36000

t

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