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4.3
Operation principle
Operation principle of BDG1 in the search mode is based on the comparison of count rates of
photon radiation with a threshold value calculated on the basis of count rate measurement of current
gamma background and set
n
coefficients.
Detector impulses processing as well as audible and visual alarm control is realized by BDG1
microcontroller.
BDG1 operation algorithm ensures the continuity of the measurement process, statistical
processing of measurement results, rapid adaptation to radiation intensity changes (measurement time
is inversely proportional to the radiation intensity).
Data communication channel enables information exchange with BDOI by RS-485 interface.
BDG1 is powered from BDOI or PC USB.
4.4 BDG1 marking and sealing
Front panel of BDG1 bears a plate representing the following:
- unit’s name – BDG1-РМ1403;
- manufacturer’s name;
- manufacturer’s trademark;
- year (of the manufacturing);
- serial number;
- instrument’s body protection level IP65;
- state register mark.
4.5 Packaging
BDG1 is packaged into a polyethylene pack and placed into a carton box with operation
documentation and delivery kit.
