ECOTEST MKS-05 TERRA User manual

MKS-05 “TERRA”
DOSIMETER-RADIOMETER
OPERATING MANUAL
ВІСТ.412129.006-04 НЕ

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CONTENTS
1 DESCRIPTION AND OPERATION OF THE DOSIMETER..........................................4
1.1 Purpose of use.......................................................................................................4
1.2 Technical specifications.........................................................................................5
1.3 Delivery kit.........................................................................................................14
1.4 Design and theory of operation ............................................................................15
1.5 Labeling and sealing............................................................................................18
1.6 Packing...............................................................................................................18
2 PROPER USE OF THE DOSIMETER.........................................................................19
2.1 Operating limitations...........................................................................................19
2.2 Preparation of the dosimeter for operation............................................................20
2.3 Use of the dosimeter............................................................................................25
3 TECHNICAL MAINTЕNANCE..................................................................................38
3.1 Technical maintenance of the dosimeter...............................................................38
3.2 Verification of the dosimeter................................................................................43

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4 CERTIFICATE OF ACCEPTANCE ............................................................................56
5 PACKING CERTIFICATE..........................................................................................57
6 WARRANTY..............................................................................................................58
7 REPAIR ......................................................................................................................59
8 STORAGE ..................................................................................................................61
9 SHIPPING...................................................................................................................62
10 DISPOSAL................................................................................................................63
APPENDIX A ...............................................................................................................64
APPENDIX B ...............................................................................................................66

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This operating manual (hereinafter called the OM) is intended to inform the user about
the theory of operation and rules of application of the MKS-05 “TERRA” dosimeter-
radiometer. The manual contains all information necessary for proper use of the dosimeter and
full realization of its technical possibilities.
The manual contains the following abbreviations and symbols:
DE - ambient dose equivalent;
DER - ambient dose equivalent rate;
MODE - on/off button and switch between the corresponding modes of
measurement and indication (gamma radiation DER, gamma radiation DE,
surface beta-particles flux density, DE accumulation time, and real time);
THRESHOLD - button of threshold level programming, time indication correction and
backlight switching-on.

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1 DESCRIPTION AND OPERATION OF THE DOSIMETER
1.1 Purpose of use
The MKS-05 “TERRA” dosimeter-radiometer (hereinafter called the dosimeter) is
designed to measure ambient dose equivalent (DE) and ambient dose equivalent rate (DER) of
gamma and X-ray radiation (hereinafter called photon-ionizing radiation), and surface beta-
particles flux density.
The dosimeter is used for dosimetry and radiometry control at industrial enterprises;
ecology research; apartment, building, and construction control; ground surface of infields and
vehicles control; personal radiation safety; visual aids for educational establishments.

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1.2 Technical specifications
1.2.1 Key specifications are presented in Table 1.1.
Table 1.1 – Key specifications
Name Unit of
measurement
Standardized values according to the
technical specifications
1 2 3
Measurement range of photon-ionizing
radiation DER μSv/h 0.1 - 9999
Main relative permissible error limit of
photon-ionizing radiation DER
measurement with confidence
probability of 0.95
% )10(
2
15  
H

,
where )(H 10

 is a numeric value
of the measured DER in μSv/h

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Table 1.1 (continued)
1 2 3
Measurement range of photon-ionizing radiation DE mSv 0.001 - 9999
Main relative permissible error limit of photon-
ionizing radiation DE measurement with 0.95
confidence probability
% ± 15
Energy range of registered photon-ionizing radiation MeV 0.05 – 3.00
Energy dependence of the dosimeter readings at
photon-ionizing radiation DER and DE measurement
in the energy range of 0.05 MeV to 1.25 MeV
% ± 25

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Table 1.1 (continued)
1 2 3
Anisotropy of the dosimeter at gamma
quantum incidence at solid angle of 30o to
150o relative to the main axis of the detector
and from the side of the main measurement
direction for:
- 137Cs and 60Co isotopes
- 241Am isotopes
Note. Anisotropy charts are given in
Appendix A
%
± 25
± 60

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Table 1.1 (continued)
1 2 3
Measurement range of surface beta-
particles flux density part./(cm2·min) 10 - 105
Main relative permissible error limit of
beta-particles flux density measurement
with 0.95 confidence probability %


200
20 ,
β
φis a numeric value of the
measured surface flux density
in part./(cm2·min)
Energy range of registered beta-
particles MeV 0.5 – 3.0

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Table 1.1 (continued)
1 2 3
Measurement range of DE accumulation time with measurement
resolution of 1 min h 100
Absolute permissible error limit at operator’s DE accumulation
time measurement during 24 hrs min ± 1
Time of the dosimeter operating mode setting, not more than min 1
Battery life (AAAx2 of 1280 mA·h capacity) under natural
background radiation and switched off display backlight, not more
than h 2000