|
Specific Unit Features |
|||
|
Feature |
Model 4 |
Model 2S |
Model 2D |
| Analog Meter-rugged assembly with shatterproof lexan lens. |
No |
Yes |
Yes |
| Range selection-multi-purpose range selection switch & battery test |
0 mR/hr through 2 R/hr |
0-10, 0-100, 0-1000 mR/hr |
0-10, 0-100, 0-1000 mR/hr |
| Battery life: Hrs@ 4 hrs/dayDays constant use |
600 24 |
250 15 |
250 15 |
| Illuminated digital display |
Yes |
No |
No |
| Geotropism % of full scale |
Not Applicable |
±2 % |
±2 % |
| Energy dependence (within 20%) |
80-1,000 Kev |
80-1,000 Kev |
80-1,000 Kev |
| Battery Complement |
8 AA alkaline |
2 “D” Cell |
2 “D” Cell |
| Audible alarm |
Automatic instantaneous over 250 mR/hr |
Optional |
Yes all ranges |
| Calibration with Cs-137 |
± 10 % |
± 10 % |
± 10 % |
| Temperature dependence |
± 5 %, -20°C to 55°C |
± 10 %, -30°C to 50°C |
± 10 %, -30°C to 50°C |
| Weight |
2.9 lbs., 1.4 kg |
3 lbs., 1.5 kg |
3 lbs., 1.5 kg |
| Dosimeter Charger & Audible alarm |
Yes |
No |
Yes |