FJ1210 α β Surface Contamination Monitor
FJ1210 α β Surface Contamination Monitor
【Product Introduction】
The FJ1210 (φ50) radioactivity detector is a portable radioactivity measuring instrument, primarily used for measuring α and β contamination on radioactive surfaces and X-ray and gamma-ray dose rates. The instrument incorporates a flat dual-scintillation detector, employs a high-speed, low-power microprocessor as its data processing unit, and uses a large-screen, backlit graphic dot-matrix LCD for display. Operation is simple and convenient via membrane keys. Users can also set parameters such as measurement time, alarm thresholds, and nuclide efficiency. The instrument also features over-threshold alarms, under-voltage alarms, counting fault alarms, and high-voltage fault alarms.
【Main Function】
1. Audible and visual alarms; continuously adjustable alarm thresholds
2. Intelligent fault indication
3. Backlit dot-matrix LCD display
4. Continuously adjustable timing duration
5. Low battery indication
6. Configurable nuclide selection
7. High-sensitivity flat dual-scintillation detector
8. Capable of measuring alpha, beta, gamma, and X-rays
【Technical Specifications】
| Radiation types | α, β, γ, and X-rays |
| Detector | Flat dual-scintillation detector (optional GM tube) |
| Units of measurement | μGy/h,μSv/h,CPS,CPM,Bq/cm2 |
| Energy range | 25KeV—3MeV |
| Sensitive area | 16 cm² (diameter φ45 mm) |
| Measurement range | α,β:0.00CPS—105CPS α,β:0.00Bq/cm2—106Bq/cm2 X,γ:0.1μGy/h—200μGy/h |
| Detection efficiency | 90Sr-90Y,≥30%,239Pu,≥20%(Measure by placing against the protective grille) |
| Inherent error | ＜±15%(relatively 137Cs) |
| Temperature and humidity characteristics | -10℃—+50℃,RH95%(35℃) |
| External Dimensions | 240*120*200mm |
| Power supply | 4 AA 1.5V batteries (rechargeable batteries optional) |
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