AJAH.418266.007RE
8
Figure 2.1 – Connection of detectors
2.2.2 Apply power supply voltage.
2.2.3 Start the “TETRA_Checker” software on the PC as described in the User Manual
(Appendix D) and make sure that detector parameters have being correctly read.
The detector operability can be checked by presence of indication of measurement result in
corresponding window of the “TETRA_Checker” software.
2.3 Use of a product
2.3.1 Detectors do not require any actions of personnel during their operation.
2.3.2 Measurement results are transferred to the external data exchange channel by request of
the external device.
2.4 Adjustment
2.4.1 Before performing adjustment prepare the detector according to 2.2.
2.4.2 Change of sensitivity coefficient К is performed by correcting the “Sensitivity index”
parameter using the “TETRA_Checker” software. Change of this parameter results in proportional
change of the indications within all measurement range.
2.4.3 Correction of indications in the end of the range (more than 0,4 of the upper limit of
measurement range) is performed by adjusting the “dead time” using the “Tetra_Checker” software.
Increasing “dead time” results in increasing indications at high count rates only.
3 MAINTENANCE
3.1 General notes
Maintenance is performed with the purpose of ensuring reliable, long-term operation of
detectors.
3.2 Safety precautions
3.2.1 Before beginning to work with detectors familiarize yourself with this User Manual.
3.2.2 During all operations with detectors follow occupational and radiation safety
requirements of current safety instructions in the company (enterprise).
3.2.3 All cable connections and disconnections should be performed with the power supply cut
off. When using detectors as part of measurement information complexes, systems and installations
“hot” connection of cables is allowed (without switching detectors off). In this case the protective earth
should be connected to corresponding terminals of the detector and of the device receiving signals
from detector.
BDMN-200DD/
BDMN-200PD
PC
~220 V, 50 Hz
Converter PI-02
RS-485/RS-422
