筛选
-
- 地区
- 全部
-
- 会员级别
- 全部
Detector:
|
Halogen-quenched Geiger-Mueller tube. Effective diameter 1.75" (45 mm). Mica window density 1.5-2.0 mg/cm
|
Display:
|
4-digit liquid crystal display with mode indicators
|
Averaging Periods:
|
Display updates every 3 seconds, showing the average for the past 30-second time period at normal levels. The averaging period decreases as the radiation level increases. User can select fast 3-second averaging period.
|
Operating Range:
|
mR/hr: .001 to 100.0; CPM: 0 to 300,000; Total: 1 to 9,999,000 counts; mSv/hr: .01 to 1,000; CPS: 0 to 5,000
|
Efficiency:
|
Sr-90 (546KeV, 2.3MeV max): approx. 75%; C-14 (156KeV max): approx. 11%; Bi-210 (1.2 MeV max): approx. 64%; Am-241 (5.5 MeV ): approx. 36%
|
Sensitivity:
|
3500 CPM/mR/hr referenced to Cs-137
|
Accuracy:
|
± 15%
|
Timer:
|
Can set 1-10 minute sampling periods in 1-minute increments, 10-50 minute sampling periods in 10-minute increments, and 1-24 hour sampling periods in 1-hour increments
|
Count Light:
|
Red LED flashes with each radiation event
|
Audio:
|
Beeper beeps with each radiation event; can be muted
|
Outputs:
|
Dual miniature jack drives CMOS or TTL devices, sending counts to computer or data logger. Submini jack allows for electronic calibration.
|
Anti-Saturation:
|
Readout holds at full scale in fields up to 100 times the maximum reading
|
Temperature Range:
|
-10° to +50° C , 14° to 122° F
|
Power:
|
One 9-volt alkaline battery; battery life is minimum 200 hours at normal background, minimum 24 hours at 1 mR/hr
|
Size:
|
150 x 80 x 30 mm (5.9"; x 3.2"; x 1.2")
|
Weight:
|
350 grams (12.5 oz) with battery
|
Options:
|
Wipe Test Plate
|