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Detect even the smallest amounts of artificial radioactivity with a high sensitivity scintillation detector. The Thermo Scientific™ FHZ 691-10 probe is specially suited to detect dose rate increases as small as 3 percent at normal background within a measuring time of one minute. Using the Natural Background Rejection (NBR) algorithm, this low dose rate detector easily differentiates between artificial parts of radiation and fluctuations in the natural dose rate (e.g. caused by precipitation) in the surrounding environment.
| 설명 | FHZ 691-10 Dose Rate Detector |
| 검출기 유형 | Scintillation |
| 측정 범위 | H*(10): Low dose detector NaI(Tl): 0.01 μSv/h to 0,5 mSv/h High dose detector (GM): 0.5 mSv/h to 10 Sv/h |
| 민감도 | Low dose detector: 160 cps/(μSv/h) High dose detector : 17 cps/(mSv/h) |
| 중량(미터법) | 520 g |
| 에너지 범위 | H*(10): 60 keV to 3 MeV |
| 범위 | Angular: - 45° bis 45° |
| 보관 온도(미터법) | - 40°C bis + 70°C |
| 제품 유형 | Dose Rate Detector |
| 치수(미터법) | Diameter: 65 mm Length: 257 mm (without plug-in connection) |
| 클래스 | Protection class: IP67 in accordance DIN 40050/EN60529 |
| 허용 가능한 검출기 선량 | 10 Sv |
| Operating Limit Temperature Range (Metric) | - 30°C bis + 55°C |
| Unit Size | Each |
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The FHZ 691-10 intelligent probe is used for H*(10) ambient equivalent dose rate measurements over a dynamic range of 9 decades.
- High measuring accuracy, 3% at 100 nSv/h in 1 min.
- ADF filter for filtering statistical fluctuations and fast reaction to changes.
- PTB type approval for calibration in combination with the display unit FHT 6020P.
- RS-485 interface.
- Transfer protocol with very short reaction times for monitoring networks.
- Extended self checks for probe functions.
- Surge protection for all inputs and outputs.
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