Ecotest - Model BDBG-09 -Intelligent Detecting Unit of Gamma Radiation
BDBG-09 is used both within data panels and automated systems of radiation monitoring to measure ambient dose equivalent rate of gamma radiation. A standard version of the detecting unit is produced with a built-in Geiger-Muller counter. A modification based on the scintillation detector is also available. Upon customer request the BDBG-09 housing can be made of duralumin or stainless steel. A special version of the detecting unit with waterproof housing has been developed for use in waterbodies and artificial reservoirs. BDBG-09 detecting unit has been successfully used for many years at nuclear power plants in Ukraine, France, Bulgaria and Korea.
- Data exchange between the detecting unit and the data display system through RS-485 interface
- Constant self-testing
- Indication of the statistical measurement error
- Ingress protection rating – ІР67
- Average service life of the detecting unit – not less than 10 years
Measurement of ambient dose equivalent rate (DER) of gamma radiation
- BDBG-09 detecting unit
- corbel
- operating manual *
- logbook
- packing
- assembly parts kit (APK) **
- technological kit ***
- PI-09 interface ***
- passport ***
* One copy per one consignment of the detecting units
** APK is applied by the user in producing a connecting cable for connection to the system. Belden 8102 cable with added screen is recommended. The connecting cable should be ordered additionally
*** Supplied on the customer’s demand in a separate order
- Measurement range of gamma radiation DER: 0.04 ... 107 μSv/h
- Basic relative permissible error limit of gamma radiation DER measurement with confidence probability of 0.95: (15+2/H(10)) %, where H(10) is a numeric value of gamma radiation DER, equivalent to μSv/h
- Energy range of registered gamma radiation: 0.05 ... 3 MeV
- Energy dependence of measurement results of the detecting unit at gamma radiation DER measurement in the energy range of 0.05 MeV to 1.25 MeV: ±25 %
- Anisotropy of the detecting unit at gamma quanta incidence at angles +60о ... -60о horizontally and vertically relative to the main measurement direction, marked by a “+” symbol , does not exceed:
- for 137Cs and 60Со isotopes: 25 %
- for 241Am isotope: 60 %
- Operating supply voltage of the detecting unit from external regulated power supply: 7 ... 13.5 V
- Useful current of the detecting unit shall not exceed
- without PI-09 interface converter: 30 mA
- using PI-09 interface converter: 155 mA
- Time of operating mode setting and measurement time of the detecting unit, not more than: 3 min
- Unstable readings of the detecting unit during 24-hour continuous operation, not more than: 5 %
- Complementary permissible error limit at measurement caused by ambient temperature change from -40 oC to +75 oC: ±5 per each 10 оС deviation relative to (20 ± 5) оС
- Interface: RS-485
- Operating temperature range: -40 … +75 °С
- Dimensions, not more than
- detecting unit without fastening elements: 60 x 60 x 170 mm
- PI-09 interface converter without fastening elements: 80 x 150 x 200 mm
- Weight: : detecting unit without fastening elements: 0.5 kg
- PI-09 interface converter without fastening elements: 2.4 kg