Specifications

AT2140

AT2140А

Ambient gamma radiation dose equivalent rate indication range

0.01 μSv/h ... 10 mSv/h

0.01 μSv/h ... 100 mSv/h

Ambient gamma radiation dose equivalent rate measurement range

0.1 μSv/h ... 10 mSv/h

0.1 μSv/h ... 100 mSv/h

Ambient gamma radiation dose equivalent indication range

0.01 μSv ... 9.99 Sv

Ambient gamma radiation dose equivalent measurement range

0.1 μSv ... 1.99 Sv

Intrinsic relative error of gamma radiation dose rate and dose measurement

±15% max.

Calibration error

±5% max.

Sensitivity to ¹³⁷Cs gamma radiation

1.8 cps/μSv?h^-1

Gamma radiation energy range

50 keV ... 3 MeV

Energy dependence relative to 662 keV (¹³⁷Cs)

±30% max.

±25% max.

Anisotropy in angular spacing ±60°

             For ¹³⁷Cs and ⁶⁰Co

±25%

             For ²⁴¹Am

±60%

Response time for dose rate measurement (For dose rate greater than 1 μSv/h)

≤10 sec

≤5 sec

Radiation overloading

Dosimeter withstands 100-fold rise of dose rate measurement upper range limit with readings not lower than maximum

Total operation time with one battery pack in natural radiation background conditions

≥5,000 h

≥10,000 h

Working temperature range

-20°C ... +50°C

-30°С ... +60°С

Relative air humidity with temperature 35°С and below without moisture condensation

≤95%

Drop protection

?

From ≤1.0 m to hard surface

Protection class

IР40

Power

2 x AA-size batteries or 2 x AA-size rechargeable cells with nominal voltage 1.2V

Overall dimensions, weight (w/o batteries)

111x70x28mm, 0.11kg

Dosimeters conform to IEC 60846-1:2009 requirement, as well as IEC 61010-1:1990 electrical safety norms and IEC 61000-4-2:2008 & IEC 61000-4-3-2008 EMC requirements.

Radio interference level of Dosimeters does not exceed EN 55011-2007 rates.