Operating manual ВІСТ.418266.006-03 НЕ
19
3.2.4.3.22.7 Set the CHANNEL switch of the switching desk to position "2" and repeat
operation 3.2.4.3.22.6 with the difference that the value of ambient dose equivalent rate of gamma
radiation of the measured frequency should be calculated by the formula:
*
і
H
(10) = Fi / K2,
(4.10.2)
where Fi - і
th
frequency value measured in hertz with the help of the frequency meter;
K2 – is the conversion factor for the 2
nd
channel equal to 0.1569 "С
-1
• μSv
-1
• year".
3.2.4.3.22.8 Place the УПГД-3В carriage with the detecting unit in a position, where gamma
radiation DER from
137
Cs source equals to
)
10
(
0
*
H
= (80
10)
µSv/h and perform operations
3.2.4.3.22.6 and 3.2.4.3.22.7.
3.2.4.3.22.9 Set the CHANNEL switch of the switching desk to position "3" and repeat
operation 3.2.4.3.22.6 with the difference that the value of ambient dose equivalent rate of gamma
radiation of the measured frequency should be calculated by the formula:
*
і
H
(10) = Fi / K3,
(4.10.3)
where Fi і
th
frequency value measured in hertz with the help of the frequency meter;
K3 – is the conversion factor for the 3
rd
channel equal to 0.0049 "С
-1
• μSv
-1
• year".
3.2.4.3.22.10 Perform operations 3.2.4.3.22.6, 3.2.4.3.22.7 and 3.2.4.3.22.9 for gamma
radiation DER from
137
Cs source
)
10
(
0
*
H
= (800
100) µSv/h.
3.2.4.3.22.11 Perform operations 3.2.4.3.22.6, 3.2.4.3.22.7 and 3.2.4.3.22.9 for gamma
radiation DER from
137
Cs source
)
10
(
0
*
H
= (8.0
1.0) µSv/h.
3.2.4.3.22.12 Perform operations 3.2.4.3.22.6, 3.2.4.3.22.7 and 3.2.4.3.22.9 for gamma
radiation DER from
137
Cs source
)
10
(
0
*
H
= (80.0
10.0) µSv/h.
3.2.4.3.22.13 Perform operations 3.2.4.3.22.6, 3.2.4.3.22.7 and 3.2.4.3.22.9 for gamma
radiation DER from
137
Cs source
137
Cs
)
10
(
0
*
H
= (800.0
100.0) µSv/h.
3.2.4.3.22.14 Perform operations 3.2.4.3.22.6, 3.2.4.3.22.7 and 3.2.4.3.22.9 for gamma
radiation DER from
137
Cs source
)
10
(
0
*
H
= (8000.0
1000.0) µSv/h.
Note - Operations according to 3.2.4.3.22.14 are allowed to be performed using
60
Со source,
while the energy dependence of the detecting unit is checked.
3.2.4.3.22.15 Monitoring results are considered to be positive if they correspond to the values
given in lines 1, 2, 4 of Table 1.1, and in the checks 3.2.4.3.22.11 - 3.2.4.3.22.14 when the
CHANEL switch of the switching desk is set to position "1", measurement result will be
(2500
375) μSv/h, in the checks 3.2.4.3.22.13 and 3.2.4.3.22.14, when the CHANEL switch of the
switching desk is set to position "2", the result of the measurement will be (320000
48000) µSv/h.
3.2.4.3.22 The detecting unit is acknowledged to have passed the testing, if the limit of basic
relative error at measurement of each level of gamma radiation DER does not exceed
15+2/
)
10
(
*
H
, where
)
10
(
*
H
is a numeric value of gamma radiation DER, equivalent to µSv/h.
3.2.4.4 Presentation of testing results.
3.2.4.4.1 Positive results of periodic verification are certified by issuing a certificate of the
form established in accordance with legislation in the field of metrology and metrological activity,
or a note in section "Certificate of Acceptance" in the logbook for the detecting unit;
3.2.4.4.2 The detecting units that do not meet the requirements of the procedure are not
allowed for manufacture and use, and get the certificate of inadequacy in accordance with the
legislation in the field of metrology and metrological activity.
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