Features
Applications
Specification:
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 | P/N6941 palmGRAPH windows software for Model 907 P/N6947 Cable palmRAD-to-PC P/N6954 Wipetest Plate P/N7010-1 Water Resistant Kit P/N8000-SA3-907 3yr Service Agreement for 907 |