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PHYSICAL CHARACTERISTICS
Radiation Detected Gamma and X-rays, 50 keV...3MeV. Beta radiation with an external probe
Detectors Two energy-compensated GM tubes. Energy response according to the
ambient dose equivalent
Dose Rate Measurement Range 0.01 μSv/h...10 Sv/h or 1 μrem/h...1000 rem/h
Dose Measurement Range 0.01 μSv...10 Sv or 1 μrem...1000 rem
Resolution Three significant digits or 0.01 μSv/h on dose rate and 0.01 μSv on dose.
Alternatively three significant digits or 1 μrem/h on dose rate and 1 μrem on
dose
Calibration Accuracy ± 5%, Cs 137 reading along the calibration direction and in the calibration
field, temperature +20 °C (68°F)
Dose Rate Linearity ± 15% ± least significant number, in the range of 0.05 μSv/h...10 Sv/h
or 5 μrem/h ...1000rem/h
Response Dependence on Radiation Direction ± 25%, within ± 45 degrees from the calibration direction, test energy 65 keV within the range of 0.05 μSv/h...10 mSv/h or 5 μrem/h...1 rem/h; ± 35%, within ± 45 degrees from the calibration direction, test energy 83 keV within the range of 10 mSv/h...10 Sv/h or 1 rem/h...1000rem/h
Energy Range 50 keV...3 MeV, within the range of 0.05 μSv/h...10 mSv/h or 5 μrem/h...1 rem/h; 80 keV...3 MeV, within the range of 10 mSv/h...10 Sv/h or 1 rem/h...1000 rem/h. Note that at energy levels between 50...80 keV overflow messages are
given if measurement range limit 10 mSv/h or 1 rem/h are exceeded
Response Dependence on Radiation Energy -20%...+30%, within the range of 0.05μSv/h...10mSv/h or 5 μrem/h...1 rem/h; ± 15%, within the range of 10mSv/h...10Sv/h or 1rem/h...1000rem/h
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ELECTRICAL CHARACTERISTICS
Data Storage the data logging interval of the instrument can be set from 1
to 99 minutes and it will memorize the 864 last measurement results in its
internal memory
Power Supply 3 alkaline batteries (IEC LR6 / AA), +12 V DC external battery
adapter (optional) or AC adapter (optional )
Battery Life 200 h in background field (+ 25°C- 77°F)
Battery Alarm 15 h before battery power-out
MECHANICAL CHARACTERISTICS
Casing impact resistant, aluminium profile body with ABS plastic end caps,
enclosure class IP67 (IEC 529), shielded against RF interference and NEMP.
Dimensions 92 x 199 x 44 mm (3.62 x 7.83 x 1.73 in)
Weight 610 g without batteries (1.34 lb); 700 g with batteries (1.54 lb)
ENVIRONMENTAL CHARACTERISTICS
Temperature Range -30°C...+55°C (-22°F to 131°F), operating; -40°C...+55°C (-40°F to 131°F), operating (restricted display operation); -40°C...+70°C (-40°F to 158°F), storage
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