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Il GammaTwin S con la Sonda Nal 2002 su un asta telescopica
  
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Dose rate meter with alarm function for personal radiation protection when handling ionising radiation and for the
detection of the dose rate and local dose. Connected with contamination probe ABG170 ( ZnS-coating thin-layer plastic scintillation).
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il GammaTwin S con il scintillatore palstico per la ricerca della contaminazione.
Fields of application
Fire Brigades, Civil Defence, Authorities, Customs,
Nuclear Technology, Industry, Chemistry
GammaTwin S su Sonda Nal 2000 GammaTwin S inserto nella funzione di Personal Dose allarm
Features
- small and handy dose rate meter for the measurement of gamma radiation and X-rays
- measurand: ambient dose rate equivalent Ḣ*(10) and
ambient dose equivalent H*(10) (local dose)
- built-in detector: energy compensated GM tube
- large, digital indication of measured values on LC-display (backlit)
- selectable simultaneous or separate indication of dose and dose rate, additionally analog indication of dose rate (logarithmic bar graph)
- display of the dose rate history as a search function for the detection of radioactive sources
- 4 preset dose and dose rate alarm thresholds
(on demand adjustment of customised alarm thresholds)
- additionally switchable acoustic single-pulse indication
- automatic and continuous storage of the dose into a
non-volatile memory
- storage of the dose and of set parameters even during battery change
- permanent self test
- designed for rough use, housing made of aluminium,
protection class IP54 (splashproof)
- menu-driven user navigation
- supplied with robust nylon bag
- optional: external probes, probe cable
- connection facility for an external probe:
- 18526 D or ABG170 for contamination measurement (α, β, γ)
- immersion counter tube ZP1083 D (β, γ)
- NaI-scintillation probe 2002 for high-sensitive measurements (β, γ)
- with connected probe:
- display of measured values in cps
- display of the pulse rate history graph as a search function for the detection of radioactive sources or contaminations
- pre-selectable alarm thresholds: 2x background or 3x background
PLEASE NOTE: Detecting the personal dose requires a measuring
instrument with the measurand Hp(10).
Technical Data
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Indication ranges
- dose rate
- dose
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0 nSv/h ≤ Ḣ*(10) ≤ 50 mSv/h
0 nSv ≤ H*(10) ≤ 1 Sv
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Measuring ranges
- dose rate
- dose
- cps
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- Ḣ*(10) ≤ 50 mSv/h
0.5 µSv ≤ H*(10) ≤
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Energy range
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40 keV up to 1.3 MeV
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Dose rate alarm thresholds
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Dose alarm thresholds
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200 µSv, 500 µSv,
1000 µSv, 2000 µSv
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Temperature range
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-20°C up to +60°C
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Power supply
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2 batteries 1.5 V (type AAA)
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Acoustic alarm
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Dimensions/Weight
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(26 × 66 × 103) mm
190 g (with batteries)
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Vedi anche:
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