36 | PRM-7000 / 8000 / 9000 Users Guide
17. PRM-7000 Specifi cations¹
Battery Life²
Standard 9V Lithium
60,000 Hours / 6.85 Years
Standard 9V Alkaline
28,250 Hours / 3.22 Years
Measurement
Front End
Detector
LND 713 Geiger-Muller tube, Halogen-quenched Thin Wall
Beta-Gamma Detector (Made in The USA)
Radiation Detected
beta, gamma and x-radiation
Energy Sensitivity
beta / gamma / X-rays: min 35 keV
gamma sensitivity: 450 CPM/mR/hr
calibrated to Cesium-137 (Cs137)
Accuracy
±10% Typical, ±15% Maximum
Measurement Ranges
0.001 to 500 mR/hr
0.01 to 5,000 uSv/hr
1 to 500,000 uR/hr
1 to 225,000 CPM (450 CPM/mR/hr)
0 to 3,750 CPS (7.5 CPS/mR/hr)
Total Count: 0 to 4,294,967,295 (32 Bit Integer)
Measurement Statistics
Continuous availability of Average, Minimum and Maximum
dose rate measurements in
either uR/hr, mR/hr, uSv/hr, CPS or CPM
Time stamp on new maximum
Dose Rate Alarm
Alarm can be set in mR/hr or uSv/hr to any value within the
measurement range.
Internal Data Logging
Storage
100,000 Bytes non-volatile memory
Logging Intervals
Every Minute or Every Hour
Maximum Capacity
91,466 Minutes or Hours
(90% Normal Background, 10% Full-Scale)
Minimum Capacity
32,656 Minutes or Hours
(100% Full-Scale Measurement Levels)
Logging Output Format
Standard Comma Separated Value (CSV) with time stamp
and CPM Data (1000 CPM/mR/hr)
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