ECOTEST DKS-02PN User manual

SEARCH ALARM DOSIMETER DKS-02PN
“CADMIUM”
Operating Manual

2
CONTENTS
1 DESCRIPTION AND OPERATION ...........................................................3
1.1 PURPOSE OF USE ............................................................................................. 3
1.2 TECHNICAL SPECIFICATIONS ........................................................................... 4
1.3 DELIVERY KIT OF THE DOSIMETER ................................................................... 9
1.4 DESIGN AND PRINCIPLE OF OPERATION .......................................................... 10
1.5 LABELING AND SEALING ............................................................................... 13
1.6 PACKING ...................................................................................................... 13
2 PROPER USE OF THE DOSIMETER ...................................................... 14
2.1 OPERATING LIMITATIONS .............................................................................. 14
2.2 PREPARATION FOR OPERATION ...................................................................... 14
2.3 USE OF THE DOSIMETER ................................................................................ 16
3 TECHNICAL MAINTENANCE ............................................................... 43
4 CERTIFICATE OF ACCEPTANCE ........................................................... 50
5 PACKING CERTIFICATE ......................................................................... 50
6 WARRANTY ............................................................................................ 51
7 REPAIR .................................................................................................... 52
8 STORAGE ................................................................................................ 53
9 SHIPPING................................................................................................. 53
10 DISPOSAL .............................................................................................. 53
APPENDIX А
TROUBLE RECORD DURING USE ........................................................... 54
APPENDIX B
REPAIR ....................................................................................................... 55
APPENDIX C
STORAGE ................................................................................................... 56
APPENDIX D
PUTTING IN PROLONGED STORAGE AND REMOVAL
FROM STORAGE ....................................................................................... 57
APPENDIX E
VERIFICATION AND INSPECTION RESULTS ............................................ 58

3
This Operating Manual (hereinafter called the OM) is intended to inform
the user about the principles of operation and rules of application of the search
alarm dosimeter DKS-02PN “CADMIUM”. The manual contains all information
necessary for full implementation of its technical capabilities and its proper use.
The Operator Manual contains the following abbreviations:
DER - ambient dose equivalent rate of gamma, X-ray and neutron
radiation;
PC - personal computer.
1 DESCRIPTION AND OPERATION
1.1 Purpose of use
DKS-02PN “CADMIUM” search alarm dosimeter (hereinafter - the
dosimeter) is designed to
• search (detect and localize) for radioactive and nuclear materials by their
external gamma and neutron radiation;
• measure ambient dose equivalent rate (DER) of gamma, X-ray and
neutron radiation;
• determine gamma, X-ray and neutron radiation intensity.
The dosimeter is used to control illicit transfer of radioactive materials and
search for sources of radioactive radiation in the following areas:
• Customs and Border Services;
• Law enforcement agencies (MIA, Security Service of Ukraine, safeguard
service);
• Metallurgy and scrap metal storage;
• Vehicles monitoring, seaports and airports;
• Environmental inspectorate;
• Radioactive waste storage sites.

4
1.2 Technical Specifications
1.2.1 Key specifications are presented in Table 1.1.
Table 1.1
Name Measurement unit Standardized value
Sensitivity to gamma radiation
for (137Cs), not less than (cps)/(μSv/h) 200
Sensitivity to neutron radiation
for:
- Thermal neutrons, not less
than
- Fast neutrons, not less than
(pulse·cm2)/neutron 1.2 ± 0.12,
0.12 ± 0.012
Measurement range of photon-
ionizing radiation DER μSv/h 0.01 … 106
Indication range of photon-
ionizing radiation DER μSv/h 0.01 … 104
Indication range of count rate
of photon-ionizing radiation cps 1 … 9999
Indication range of count rate
of neutron radiation cps 0.01 … 9999
Main relative permissible error
limit during photon-ionizing
radiation DER measurement
with 0.95 confidence
probability (137Cs)
%
±(15+1/H*(10)),
where H*(10) is a
numeric value of
measured DER
equivalent to μSv/h
Energy range of registered
photon-ionizing radiation MeV 0.02 … 3.00
Energy dependence of the
device readings during photon-
ionizing radiation DER
measurement in the energy
range from 0.05 to 3.00 MeV
relative to 0.662 MeV energy
(137Cs)
% ±25

5
Table 1.1 (continued)
Name Measurement
unit
Standardized
value
Anisotropy of the dosimeter when gamma
radiation is recorded at gamma quanta
incidence at angles from +60о to - 60о
horizontally and vertically relative to the
main measurement direction, marked by a
“+” symbol:
- for 137Cs and 60Со isotopes
- for 241Am isotope
%
30
75
Energy range of registered neutron radiation eV 0.025 – 14·10
6
Time of operating mode setting, not more
than min 1
Calibration time by the level of gamma
background s 2 … 60
Response time to over 10 times change of
photon-ionizing radiation DER s 0.25
Operating supply voltage of the dosimeter
from lithium-polymer battery V 3.7
Continuous operation of the dosimeter when
powered by the charged battery under
natural background radiation and switched
off display backlight, not less than
hrs 40
Operating temperature range °С -20 … +50
Dimensions of the dosimeter without a clip,
not more than mm 67 × 127 × 30
Weight of the dosimeter, not more than kg 0.28

6
1.2.2 The dosimeter features a threshold alarm system with three
independent threshold levels:
- Search threshold level or sigma-threshold (threshold level of pulse count
rate from the detector of gamma radiation);
- Safety threshold level (threshold level of gamma radiation DER);
- Neutron threshold level (threshold level of pulse count rate from the
detector of neutron radiation).
1.2.3 Search threshold level is calculated automatically by the dosimeter in
the mode of calibration by the gamma background intensity level and consists of
the background counting rate and the programmed number of rms deviations of
background counting rate. Calibration time by the level of gamma background
intensity ranges from 2 to 60 seconds.
The programming range of the number of rms deviations - from 1 to 9.9.
Programming resolution - 0.1. The dosimeter signals about the search threshold
level exceeding with light (red), vibration or sound signals "Sigma threshold
exceeding". Any combination of alarms is possible, while at least one type must
remain. The alarm is duplicated in the display of the dosimeter by highlighting of
a corresponding icon.
1.2.4 Safety threshold level is programmable in the XXX.YY format in
µSv/h or mSv/h. The minimum safety threshold level may not be less than 0.3
µSv/h. The dosimeter signals about this threshold level exceeding with light (red),
vibration or sound signals "Safety threshold exceeding". Any combination of
alarms is possible, while at least one type must remain. The alarm is duplicated in
the display of the dosimeter by highlighting of a corresponding icon.
1.2.5 Conditional threshold alarm level by neutron channel is set with the
values from 1 to 9, where 1 is the highest sensitivity of the device to neutron
radiation (but also the greatest probability of false positives), and 9 is the lowest
sensitivity and lowest probability of false positives. Programming resolution – 1.
The dosimeter signals about this threshold level exceeding with light (blue),
vibration or sound signals "Neutron threshold exceeding". Any combination of
alarms is possible, while at least one type must remain. The alarm is duplicated in
the display of the dosimeter by highlighting of a corresponding icon.
1.2.6 Threshold alarm of the dosimeter triggers no later than in 2 seconds
after the level of gamma radiation increases above the background value (with
gamma radiation DER level of 0.1 µSv/h) to the DER level of 0.5 µSv/h for a
maximum time of 0.5 sec.

7
1.2.7 The frequency of false signaling for gamma and neutron radiation -
less than 1 per 10 hours of operation in a stable background environment and the
following values of threshold levels:
- Search - 4;
- Safety - 1 µSv/h;
- Neutron - 1.
1.2.8 The dosimeter does not give false signals about the presence of
neutron radiation when exposed to gamma radiation from gamma source with
60Со or 137Cs with DER value of 100 µSv/h.
1.2.9 The dosimeter offers a possibility of automatic event logging in the
nonvolatile memory, namely:
- switching the dosimeter on;
- switching the dosimeter off;
- search threshold level exceeding;
- safety threshold level exceeding;
- conditional threshold level exceeding from the detector of neutron
radiation;
- saving measurement by the user’s command;
- settings change by the administrator;
- device’s flash memory erasing.
1.2.10 Nonvolatile memory capacity allows storing up to 65,000 records of
registered event.
1.2.11 Data communication between the dosimeter and the PC is done via
USB.
1.2.12 The dosimeter displays signs of the low battery.
1.2.13 The dosimeter remains operable under:
- Ambient temperature from -20 to +50 °C;
- Relative humidity up to 100% at 35 °C temperature without humidity
condensation;
- Atmospheric pressure from 84 to 106.7 kPa.
1.2.14 The dosimeter is resistant to sinusoidal vibrations by N1 group
according to GOST 12997-84 standard.
1.2.15 The dosimeter is resistant to single shocks with the following
parameters:
- Shock pulse duration - 6 ms
- Maximum shock acceleration - 50 m/s2.

8
2.1.16 The dosimeter is resistant to falls on each of its six edges from a
height of 0.75 m on the concrete floor.
2.1.17 The dosimeter remains unaffected by constant and alternating
magnetic field of (50±1) Hz frequency and 400 A/m intensity.
2.1.18 The dosimeter is immune to gamma and X-ray radiation of up to
10 Sv/h DER for 5 minutes.
1.2.19 The ingress protection rating of the dosimeter in compliance with
GOST 14254-96 standard – is IP67.
1.2.20 The dosimeter is resistant to electromagnetic fields of frequency
range in accordance with DSTU IEC 61000-4-3: 2007 standard in the frequency
range from 80 to 1000 MHz with intensity of 3 V/m (test level 2).
1.2.21 The quasi-peak value of the radio-noise field intensity at a distance
of 3 m from the dosimeter does not exceed the values for class B equipment
according to GOST 29216-91.

9
1.3 Delivery kit of the dosimeter
1.3.1 The delivery kit of the dosimeter includes the units and maintenance
documentation presented in Table 1.2.
Table 1.2- Delivery kit
Item Type Q-ty Note
Search Alarm
Dosimeter DKS-02PN
“CADMIUM”
ВІСТ.412139.005-02 1
Charging device 1 Model is not
specified
Operating Manual ВІСТ.412139.005-02 HE 1
Events Reader software 1 On a mini CD
Case 1 Model is not
specified

10
1.4 Design and principle of operation
1.4.1 General information, design description
1.4.1.1 Appearance of the dosimeter is shown in Figure 1.
Figure 1 – Outlook of the dosimeter