ECOTEST DKG-21 M Operating Manual page 92

5.2.4 Verification facilities are presented in Table 5.3.
Table 5.3 - Verification facilities
Name
УПГД-3Б
testing
equipment
Regulatory Document or Main Technical
DER range from 0.01 μSv/h to 1 Sv/h.
Energy range from 59 KeV to 1.25 MeV.
Main relative permissible error limit of DER
and DE measurements is 4 % at 0.95
confidence probability
Specifications
91