| 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 |