Product Instruction
EI-R111 Neutron and Gamma Rate Survey Meter is a new handheld radiation survey meter that detects both neutrons and gamma rays. The neutron detector is wrapped with a unique spherical column-shaped slowing body, which features high neutron detection sensitivity, good suppression of interfering gamma radiation fields, miniaturisation, digitalisation and intelligence. It can be used handheld or worn for neutron, x and gamma radiation level measurement and search, etc.
Functional Features
– Free switching between count rate, dose rate and cumulative dose
– HD black and white display with manually illuminated backlight
– Independent gamma and neutron measurement channels and alarm alerts
– Continuously adjustable alarm thresholds, audible, visual and iconic alarms at the same time
Application Areas
– Radiation protection of nuclear facilities, nuclear regulatory and source-related enterprises and institutions
– Environmental monitoring department for official duties, disease control and health department for emergency response
– Security precautions for major events, embassies and consulates abroad
– Customs, border control and other nuclear and radiological counter-terrorism, prevention of illegal radioactive material transport and radiological terrorist attacks, etc.
– Third party testing agencies
Technical Specifications
Physical properties |
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| Neutron | Gamma |
Detector type： | Neutron"⁶LiI(Eu)“ scintillation crystals | Csl(Tl) scintillation crystals |
Energy range： | 0.025eV to 14MeV | 33keV ~ 3MeV |
Dose rate range： | 0.1μSv/h~100mSv/h | 0.01μSv/h ~ 100μSv/h |
Sensitivity： | 0.5cps/(μSv/h).@ 252Cf | >130cps/(μSv/h).@1Cs |
Relative inherent error： | ≤±20 % |
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Alarm methods: When the test data exceeds the set alarm threshold, the LED flashes and an alarm sounds
Data storage methods: Continuous saving: continuous data saving according to the set saving interva Trigger saving: Storage starts when an alarm occurs, storage interval 1 second
Electrical Characteristics
Power supply method: 4 size 5 batteries, 100+ hours continuous operation (no backlight or buzzer)
Communication methods: USB
Data storage: Storage for 100,000 data sets
Mechanical Properties
Display method: HD black and white LCD
Machine size: Ø90×267(mm)
Weight: 640g (without battery)
Environmental Characteristics
Protection class: IP65
Operating temperature: -20℃ to 50 ℃
Operating humidity: ≤ 90% (30 ℃ , no condensing)
