ECOTEST DKG-21 Manuel utilisateur
DKG-21
PERSONAL GAMMA RADIATION DOSIMETER
Operating manual
ВІСТ.412118.031-02.02 НЕ
1
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
2
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
3
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.
4
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
Register No. У2514-07.
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.
5
3 DESCRIPTION AND OPERATION
3.1 Purpose of use
3.1.1 The dosimeter is designed to measure individual dose equivalent
)10(
p
H
ofgammaandX-rayradiation(hereinafter–DE)andindividualdose
equivalent rate
)10(
p
H
(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.
6
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.
7
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(
p
H
- a numeric value of DER in µSv/h.
)10(
7200
p
H
t
=
8
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(
p
H
- 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
60
p
H
t
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