1. INTRODUCTION page 4
Model PRM-470B
1.4. SPECIFICATIONS
Sensitivity: Will detect 10g HEU or 1g
239
Pu
when tested in accordance with ASTM Standard C 1237-93
Detector: One, 3.5"h x 2.88"w x 1.25"d (8.8 x 7.2 x 3.1cm)
plastic scintillator detector; provides 12.6 in
3
(206 cc) of detector volume
Alarm Levels: Set by two internal rotary switches from 0.1 to 9.9 sigma
Alarm Indication: Audible tone and LED
Count Time: Search mode: 0.05 sec. count with .4 sec. moving average.
Background time: 10 sec.
Display: LCD, one line x 4 characters, with backlight
Power: The internal NiCad battery pack provides more than 60 hours of
continuous operation on a full charge.
Battery Charger: The instrument is shipped with a universal input battery charger which
operates on 90 – 250 Vac, 47 – 63 Hz.
Recharge time is less than 16 hours.
Optional 4 "AA" alkaline batteries will provide more than 24 hours
of operation.
Conversion: µsievert conversion: set by two internal rotary dip-switches;
Range: 100 to 9900 cps/µsievert
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