รายละเอียด:
The Digilert 200 measures alpha, beta, gamma, and x-rays. Its digital display shows readings in your choice of counts per minute (CPM), CPS, µSv/hr, mR/hr, or in accumulated counts. Now with USB and the included Observer USB Software, you can download your accumulated data from the Digilert200’s internal memory, set alarms, and calibrate your instrument!
Detector
Halogen-quenched GM tube with thin mica end
window. Mica window density 1.5-2.0 mg/cm2. Effec-
tive window diameter is .360 inch. Side wall is .012
inch thick.
Operating Range
mR/hr - .001 (1µR) to 200 mR/hr
µSv/hr - .01 to 2000
CPM - 0 to 214,000
CPS - 0 to 3575
Total/ Timer - 1 to 9,999,000 counts
Accuracy
±10% typical (NIST), Typically ±15% of reading.
Energy Sensitivity
1070 CPM/mR/hr referenced to Cs137
• Detects alpha down to 2.5 MeV; typical detection
effciency at 3.6 MeV is greater than 80%.
• Detects beta at 50 keV with typical 35% detection
effciency.
• Detects beta at 150 keV with typical 75% detection
effciency.
• Detects gamma and x-rays down to 10 keV typical
through the window, 40 keV minimum through the case
Display
Backlit 4-digit liquid crystal display with mode
indicators.
Display updates every 3 seconds.
Count Light
Red LED fashes with each count.
Audio Indicator
Sounds with each count (can be switched off for silent
operation)
Alarm
Pulsating beeper sounds the alarm. Three separate
adjustable alert levels are used for mR/hr, CPM,
µSv/hr, and CPS.
Outputs
Dual miniature jack sends counts to CMOS-
compatible devices, including computers, data
loggers, and educational data collection systems.
USB for use with Observer USB Software for PCs
Anti-Saturation
Readout will hold at full scale in radiation felds as
high as 100 times the maximum reading.
Power Requirements
One 9-volt alkaline battery. Battery life is approx.
2000 hours at normal background radiation levels.
Temperature Range
-10° to +50°C (14° to 122°F)
Weight
217 g (7.7 oz.)
Size
150 x 80 x 31 mm (6.1 x 3.1 x 1.2 in.)
Options
Xtreme Boot & Stand
Limited Warranty
1 year limited warranty