Bertin Technologies ALPHAGUARD DF2000 - 12.2 Basic Functions AlphaGUARD D2000

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USER MANUAL
Operation from internal
battery
> 10 days
Weight (incl. Internal battery)
6,2 kg (13,7 lbs)
Dimensions without handle
(L x W x H)
Dimensions with handle
(L x W x H)
282 mm x 340 mm x 123 mm
329 mm x 355 mm x 123 mm
System operating range
-
Temperature
-
Atmospheric pressure
- Humidity
-10 °C … +50 °C (+14 … +122 °F)
700 mbar … 1100 mbar
0 % rH … 95 % rH (non-condensing)
Power consumption external
power supply
100 – 240 V (400 mA)
50 – 60 Hz
Basic functions AlphaGUARD D2000
Type of radon detector
Ionization chamber, HV | 750 VDC
Mode of operation
3D-alpha spectroscopy a n d current mode
Total detector volume
0,62 liter (38 cubic inches)
Active detector volume
0,56 liter (34 cubic inches)
Type of Radon progeny filter
(detector entry window)
Fine dust filter (retention coefficient >99,9 %)
Detector filling mechanism
Design-optimized for fast passive diffusion
Transient response function
(time delay)
Signal > 30 % after 10 min
Signal > 70 % after 20 min
Signal > 90 % after 30 min
Detector signal acquisition
Fast digital signal sampling network, using
three separate ADC channels
Spectral signal extraction
DSP (Digital Signal Processing), on-line-cross
correlation algorithms
Detector efficiency
1 CPM at 20 Bq/m³ (or at 0,55 pCi/l)