Doza MKS-15D Snegir Gebruikershandleiding - Pagina 14
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Dry cleaning can be performed with any periodicity.
3.3.2.2 Remove the batteries each time before long-term storage of the dosimeter. To do this
proceed as follows:
-
turn the dosimeter off;
-
remove the lid of the battery compartment;
-
take the batteries out of the battery compartment;
-
review the battery compartment, check condition of terminals, clean contamination in the
battery compartment and remove oxide from terminals;
-
make sure there is no moist, no spots of salts on the surface of batteries and no damage of
insulation either;
-
install the lid of the battery compartment.
3.3.3 Periodic maintenance
Periodic maintenance consists of calibration of dosimeter.
4 CALIBRATION ROUTINE
4.1 General reguirements
4.1.1 Calibration of a dosimeter is performed in accordance with the IEC 61453:2007.
4.2 Preliminary arrangements
4.2.1 Operations performed during calibration are listed in Table 4.1.
Table 4.1 – List of calibration operations
External examination
Testing
Determination of basic relative measurement error of AEDR of photon radiation
Determination of basic relative measurement error of AED of photon radiation
Determination of basic relative measurement error of beta radiation flux density
4.2.2 Primary and auxiliary tools and equipment necessary for calibration are presented in the
Table 4.2.
Table 4.2 – Primary and auxiliary tools and equipment for calibration
Section
4.5.3, 4.5.4
4.5.5
4.5.4
4.5.3, 4.5.4, 4.5.5
4.5.3, 4.5.4, 4.5.5
4.5.3, 4.5.4, 4.5.5
N o t e - It is allowed to use other tools and equipment with similar characteristics ensuring determination of
metrological characteristics of dosimeters with required precision.
Operation
Name and type (designation) of primary or auxiliary calibration tool, document
that regulates technical requirements and/or metrological and main technical
Calibration installation UPGD-2M-D, UPGD or equivalent, range of reproduced
-7
AEDR – from 5·10
to 5·10
Set of sources 4SO, range of reproduced beta radiation flux density
4
-2
from 10 to 10
cm
·min
Stopwatch with measurement range 1 to 3600 seconds
Thermometer with measurement range 0 to 30 °C and scale interval 0.1 °C
Psychrometer with measurement range 20 to 90 %, error ±6 %
Barometer with measurement range 60 to 120 kPa and scale interval 1 kPa
FVKM.412152.005RE
characteristics of the calibration tool
-2
-1
Sv·h
.
-1
14
Section
4.5.1
4.5.2
4.5.3
4.5.4
4.5.5