ECOTEST DKG-21 Operating Manual page 8

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
С.
0
+ 20
3.2.6 Energy range of registered gamma radiation is from 0.05 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 ± 60
relative to the main measurement direction (perpendicular to the front panel
of the dosimeter), not more than:
137
- 25 % - for
241
- 85 % - for
С to + 50 С is 5 % per each 10
0 0
60
Cs and Co radionuclides;
Am radionuclide.
6
С of deviation from
0
0