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AJAH.418266.007RE

17

Appendix C

(оbligatory)

OUTLINE DRAWING

Figure С.1 – Portable version of the detector (with handle)

Figure С.2 – Detector with light-weight attachment fitting

Detector
module

FVKM.305615.001

4 holes Ø6,5

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Summary of Contents for BDMN-200

Page 1: ...Scientific Production Company Doza DETECTORS BDMN 200 User Manual AJAH 418266 007RE ...

Page 2: ... of a product 8 2 4 Adjustment 8 3 Maintenance 8 3 1 General notes 8 3 2 Safety precautions 8 3 3 Maintenance routine 9 4 Calibration routine 9 4 1 General requirements 9 4 2 Preliminary arrangements 9 4 3 Safety precautions 10 4 4 Conditions 10 4 5 Procedure 10 5 Routine repairs 11 6 Storage 11 7 Transportation 11 8 Disposal 11 Appendix A Description of data exchange registers using the DiBUS pro...

Page 3: ...a transfer to the external devices intended for visualization storage and alarm signalling Details on DiBUS protocol are presented at www doza ru Detectors are manufactured in modifications that differ by data exchange interface BDMN 200DD AJAH 418266 007 interface RS 422 BDMN 200PD AJAH 418266 007 01 interface RS 485 1 2 Technical characteristics 1 2 1 Energy range of measured neutron radiation 0...

Page 4: ... operable within the limits stated in sections 1 2 3 1 2 10 during the whole life cycle under specified operation conditions 1 2 15 Degree of protection provided by casings against ingress of solid items and water IP65 1 2 16 Detectors are stable against electromagnetic interference of 2 grade according to the IEC 1000 4 8 93 IEC 1000 4 9 93 IEC 61000 4 2 95 IEC 61000 4 3 2006 IEC 61000 4 4 2004 I...

Page 5: ...is not included in the delivery kit it is assembled by the customer using the cable plug from the delivery kit in accordance with the wiring diagram Appendix B 1 4 Design and operation 1 4 1 Detector module is comprised of scintillation detector based on LiF enriched in 6 Li isotop to 85 and ZnS Ag placed in the plexiglass for conversion of slow thermal neutrons into scintillations flashes of ligh...

Page 6: ...eneration of the Alarm signal begins when the AEDR of neutron radiation exceeds corresponding threshold set by operator The Sliding algorithm allows smoothing of fluctuations of the count rate and prevents false alarms but at the same time the respond to dynamic changes of the radiation intensity is delayed to some extent The delay is determined by the algorithm parameters the interval time and th...

Page 7: ...ner electronic circuit is galvanically isolated from the detector casing 1 5 Marking and sealing 1 5 1 Detector casings have a nameplate with the following information trademark and name of the manufacturer supplier reference designation of the detector works number of detector according to the manufacturer s system of numeration degree of ingress protection against solid items and water provided ...

Page 8: ... 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 Safe...

Page 9: ...al treatment with distilled water and drying with filter paper are not required Dry cleaning can be performed with any periodicity Detectors should be disconnected from the power supply before dry cleaning and or decontamination 3 3 2 Periodic maintenance Periodic maintenance consists of calibration of detectors 4 CALIBRATION ROUTINE 4 1 General requirements Calibration of detectors are performed ...

Page 10: ...detector operability can be checked by presence of indication of a measurement result in corresponding window of the TETRA_Checker software 4 5 3 Determination of basic relative measurement error of AEDR of neutron radiation 4 5 3 1 Determine the basic relative measurement error by means of successive exposure of the detector to a set of AEDR of neutron radiation in the ranges the first value is s...

Page 11: ... in the original manufacturer s package can be transported by all means of transport at any distance transportation by railway shall be carried out in clean boxcars when transported by air the boxes with detectors shall be placed in air tight heated compartment when transported by water and sea transport the boxes with detectors shall be placed in the hold 7 2 Arrangement and fastening of the boxe...

Page 12: ...ctors accepted for operation after decontamination are subjects for repair or replacement in case of failure Detectors not suitable for operation with radioactive contamination levels below permissible limits should be dismantled to prevent further use and transferred to a special site for disposal of industrial wastes 8 4 Detectors with expired lifetime accepted for use after decontamination shal...

Page 13: ... of selected measured quantity R Single 25 0 13 Measurement interval of selected measured quantity R DWORD 11 0 14 Uncertainty of the measurement result R BYTE 1 0 15 Selection of the measured quantity 1 R W BYTE 1 0 18 Status of the detector R WORD 5 0 19 Restart of measurement W BYTE 1 0 1c Detector code 2 R BYTE 1 0 1d Setting the net address of the block W DiBUS_address 33 0 1e The detector s ...

Page 14: ...of the default measured quantity The measured quantity set as default is used by registers Instantaneous value 0 09 Combined package Measurement result of the selected measured quantity 0 0f Measurement result of the selected measured quantity 0 10 Measurement interval of the selected measured quantity 0 13 Uncertainty of the measurement result 0 14 А 3 Restart of measurement Register 0 19 is used...

Page 15: ...ion of the register Selection of the measured quantity in the table A 1 calculated using data for the UniqSec th second InsPSS number of pulses acquired during UniqSec th second 4 bytes data type Single 25 UniqSec unique identifier changes every second 4 bytes data type DWORD 11 Examples of packages are presented in the Table A 4 Table A 4 Examples of packages Note Package Request for measurement ...

Page 16: ...Note A1 Divider AJAH 418289 007 1 BL1 Photomultiplier tube FEU 35 1 1 A2 Amplifier AJAH 418288 007 04 1 A3 Voltage multiplier AJAH 418289 005 1 A4 Regulator AJAH 418283 012 1 BD1 Detector ZnS 1 30x4 mm HL1 LED L 34HD Kingbright 1 XP3 Plug RS10TV 1 XS1 Socket EHR 3 JST 1 XS2 Socket EHR 2 JST 1 ...

Page 17: ...8266 007RE 17 Appendix C оbligatory OUTLINE DRAWING Figure С 1 Portable version of the detector with handle Figure С 2 Detector with light weight attachment fitting Detector module FVKM 305615 001 4 holes Ø6 5 ...

Page 18: ...AJAH 418266 007RE 18 Figure С 3 Detector with wall mounting Wall mounting Neutron Moderator 4 holes Detector module ...

Page 19: ...o the device nomenclature of parameters is defined by the device itself select one of the measured quantities in the device as a quantity requested by default indicate information about the operation of the device and measurement results on the monitor of personal computer indicate the device status information on the monitor of personal computer ATTENTION BUGS ARE POSSIBLE WHEN USING THE PROGRAM ...

Page 20: ... the main window D 2 1 1 Parameters button The Parameters button is located in the upper right corner of the main program window Pressing the button Parameters displays a window shown in figure D 2 2 Figure D 2 2 Overview of the window Parameters ...

Page 21: ...rrect port or release port by shutting down the concurrent program No reply this message appears when the device is not connected or the conversion mode of the matching device RS 232 to RS 485 RS 422 is incorrect Read error probably in the broadcast request mode several devices answer simultaneously it is recommended to switch to request mode with specific net address or working in the broadcast r...

Page 22: ...he writing new parameter values will be displayed in the column Parameter point after a while ATTENTION DECIMAL POINT SEPARATOR BETWEEN INTEGER PART OF THE NUMBER AND THE FRACTION IS USALLY A DOT HOWEVER YOUR OPERATION SYSTEM CAN BE SET TO USE COMMA INSTEAD BE CAREFUL WHEN YOU INPUT NUMBERS Sets of values or ranges of values of parameters are indicated in the operational documentation for each dev...

Page 23: ...values of parameters on the Device parameters panel are refreshed SET PARAMETERS F2 when the button F2 is pressed new values of the dynamic parameters are written into device At the same time parameter date of correction of parameters is automatically set to current date ...

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