Product Instruction
EI-R105 is a cloud-based portable surface contamination monitoring device with a ZnS coated plastic scintillator probe with a sensitive detection area of 170cm2 , designed to detect alpha and beta contamination on surfaces or wiped test samples. The instrument has a built-in WIFI and 4G module for field data transmission. The color HD touchscreen display makes it easy to operate and carry. A cloud server can be set up so that measurement data can be automatically uploaded to the cloud server via wireless and mobile networks,
allowing access to the server and data readings anywhere, anytime, as long as the instrument is connected to the internet.
Functional features
– Based on a unique detection method, the lower detection limit of the instrument is not affected by external exposure
– Built-in WIFI and 4G modules allow you to upload measurement data to the server for subsequent statistics, analysis and display as required
– Built-in industry standard (EJ/T1204) method with automatic evaluation and display of lower detection limits
– Simultaneous α and β measurements with switchable units of cps, Bq, Bq/cm2
– Large HD touchscreen display with manual or automatic sensor to turn on the backlight
– Alarm thresholds are set in two levels
– Automatic deduction of the background function
– A library of over 30 freely editable nuclides
– Extendable with external probe for X/γ dose rate measurements
Technical specifications
Physical properties
Detector type ： ZnS coated thin film plastic scintillator detector with optional GM tube detector
Single probe incident window area ： 170cm2
Unit： cps, Bq, Bq/cm2
Background deductions ： Deductive and non-deductive background optional, background measurement time settable
Background count rate ： α: < 0.1cps, β : < 20cps
Detector efficiency：241Am: ≥ 33%, 90Sr/ 90Y: ≥ 35%
Repeatability： < 10%
Relative inherent error： ≤ ±25%
Measurement time ： Timed measurement function, time 1s to 999s continuously adjustable
Alarm methods ： Audible and visual alarm
Nuclide Library： Over 30 nuclides with reset and automatic calibration
Data storage ： More than 1000 measurement data can be stored
Electrical characteristics
Power supply method NiMH rechargeable battery, >25 hours continuous operation Communication methods USB, WiFi, 4G
Mechanical properties
Machine size 139H×132W×354D(mm) Weight 1.2kg (with battery)
Environmental characteristics
Working environment Temperature: -20 C to 50 C; Humidity: ≤ 90% (30 C, no condensing)