FJ-310B Environmental grade X gamma dose rate meter
The instrument uses NaI crystal as detector, combined with
photomultiplier tube, high-speed, low-power micro processor as data
processing unit, data display with backlight pattern dot matrix LCD
LCD screen, the use of film buttons for operation, simple
operation.
Technical parameter:
| Radiation type | X, γ |
| Detector | Sodium iodide NaI (Tl) crystal |
| Measuring range | 0.01-200 μSv/h |
| Display range | 0.001-200.000 μSv/h |
| Display unit | Sv and Gy can be switched |
| Cumulative dose | 0-1000kSv |
Radiation type: X, γ
Detector: Sodium iodide NaI (Tl) crystal
Measuring range: 0.01-200 μSv/h
Display range: 0.001-200.000 μSv/h
Display unit: Sv and Gy can be switched
Cumulative dose: 0-1000kSv
Sensitivity: greater than 1500 cps/μSv/h
Accuracy: ±15% (100μSv /h, 137Cs)
Energy response: 40keV -3 MeV
Response time: < 1 s
Power supply: 4 AA1.5V (No.5) batteries
Temperature and humidity characteristics: -10℃-+50℃, RH95%(35℃)
Instrument size: 210mm×180mm×110mm
Weight: about 1.3kg Handle easy to carry/hold, ergonomic design;
With straps, easy to carry.
The instrument comes with LED fill light for easy detection in dim
environment. The alarm threshold can be arbitrarily set, and the
audible and visual alarm can be exceeded.
Accumulated dose alarm threshold can be set, with shutdown, battery
change accumulated dose storage function, accumulated dose can be
cleared to zero.
Managers can calibrate instruments by modifying scale factors.
Screen display, backlit.
This instrument can be used for radiation dose detection near
medical radiation equipment, environmental protection departments
to detect environmental background conditions, non-destructive
testing (that is, X-ray detection) equipment whether there is
radiation leakage, and environmental background measurement of
residential areas near nuclear power plants. At the same time, it
can meet the requirements of radiation protection monitoring in
environmental protection, health, flaw detection, metallurgy,
petroleum, chemical industry, commodity inspection, nuclear
military industry, customs and other industries.
This instrument is a necessary lateral measurement instrument for
the application of radiation safety permit by the users of
radioactive sources and radiation devices. The equipment has a high
sensitivity, which can provide a great guarantee for the safety of
radioactive workers. The instrument implementation standard is
JJG521-2006 "χ, γ air kinetic energy (Absorbed dose) rate
instrument for environmental monitoring".
