
15-00044
Revision 5
April 2008
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2. DRM Specifications
2.1 DRM-1 General (GM Tube)
• Detector
G
M tube ZP-1301 (or equivalent) - high range
GM tube ZP-1201 (or equivalent) - low range
Optional GM tube ZP-1300 non-energy compensated – low range
Optional CsI (Tl) detector
• Measuring Ranges :
0.05 mR/h to 1000 R/h (0.5 µSv/h to 10 Sv/h)
Automatic switching between the two GM tubes at
600mR/h and 800mR/h
• Accuracy
±10 % of reading, within the measuring range
• Energy Response (
137
Cs)
±20 % at 70 keV to 2 MeV
• Sensitivity (
137
Cs):
1
7 cps/mR/h (low range)
0.3 cps/mR/h (high range)
• Power Source
External power supply and battery backup
External power supply: Input 120-250 Vac, Output 6 Vdc to 15 Vdc with locking connector
Battery back-up: Three (3) 1.2v NiMH 2100mA rechargeable
Battery operating lifetime: Up to 12 hours of continuous operation
Power Saving Mode On/Off using Meter View Software
• Temperature Range
Operation: -10°C to +50°C (15°F to 122°F)
Storage: -20°C to + 60°C (-5°F to 140°F)
• Humidity Range
10% to 95% RH (non condensing)
Enclosure Material Aluminum
• Dimensions
W
idth: 108 mm (4.25”)
Length: 178 mm (7”)
Height: 64 mm (2.5”)
Weight:: 907 gr. (2 lbs)
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