Specifications
AT2140
AT2140¬¡
Ambient gamma radiation dose equivalent rate indication range
0.01 ¥ìSv/h ... 10 mSv/h
0.01 ¥ìSv/h ... 100 mSv/h
Ambient gamma radiation dose equivalent rate measurement range
0.1 ¥ìSv/h ... 10 mSv/h
0.1 ¥ìSv/h ... 100 mSv/h
Ambient gamma radiation dose equivalent indication range
0.01 ¥ìSv ... 9.99 Sv
Ambient gamma radiation dose equivalent measurement range
0.1 ¥ìSv ... 1.99 Sv
Intrinsic relative error of gamma radiation dose rate and dose measurement
¡¾15% max.
Calibration error
¡¾5% max.
Sensitivity to 137Cs gamma radiation
1.8 cps/¥ìSv?h-1
Gamma radiation energy range
50 keV ... 3 MeV
Energy dependence relative to 662 keV (137Cs)
¡¾30% max.
¡¾25% max.
Anisotropy in angular spacing ¡¾60¡Æ
For 137Cs and 60Co
¡¾25%
For 241Am
¡¾60%
Response time for dose rate measurement (For dose rate greater than 1 ¥ìSv/h)
¡Â10 sec
¡Â5 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
¡Ã5,000 h
¡Ã10,000 h
Working temperature range
-20¡ÆC ... +50¡ÆC
-30¡Æ¬³ ... +60¡Æ¬³
Relative air humidity with temperature 35¡Æ¬³ and below without moisture condensation
¡Â95%
Drop protection
?
From ¡Â1.0 m to hard surface
Protection class
I¬²40
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