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1. 3 3 4 5 SEQ TEST The sequential number sets the number of consecutive 200ms intervals above background needed to allow a potential neutron alarm or HI fault condition to be acknowledged The normal setting is 4 800 mSecs 3 3 5 NEUTRON FUNCTIONS 1 SHOW COUNT Displays detector counts 2 DSCR ADJUST Discriminator adjustment 3 CLEAR N CNTS Clears occupancies and alarms since power up 4 NEU ENABLE Enables the neutron channels 3 3 5 1 SHOW COUNT Displays each detector bank counts in cps updated once per second if intervals have been set to something other than 5 the counts will not be represented in cps reference Section 3 3 1 2 Press the pound lt gt key to exit the show count mode The neutron counts will very from one location to the next but generally the background per detector bank will be between 0 10 NOTE All alarms are disabled in the Show Count mode Show Count mode will display the counts of all detector banks regardless of whether they are enabled or not This document ts the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 32 f Ii Fa u td Systems L VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 3 3 5 2 DSCR ADJUST
2. 23 PMFX 4 Quad Signal Pickoff Board Component Designator 24 LD 260 Schematic Diagram amp Component Designator 00eeee6 25 Voltage Divider Schematic Diagram VD 580 cccccccsssssssssssccscees 26 This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 94
3. 6 2 THE SCA 775 One SCA 775 is installed in each pillar Itis made up of the following components x Figure 6F This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 32 A A Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A I l t 6 2 1 The SCA 774 The SCA 774 Single Channel Analyzer board is a four channel amplifier SCA board The analog SCA portion of the board uses a dual operational amplifier and a dual comparator to perform the SCA function The SCA 774 has a dc dc converter much like the one on the SC 770 to convert battery voltage to the 5 Vdc required by its components The SCA output is sent to U16 where the digital pulses are timed using a 2MHz clock The outputs of U16 are passed on to the differential driver IC U21 The differential driver outputs from U21 are sent to the SC 770 where they are counted Discriminator adjustment is accomplished using a four channel serial input DAC U14 The DAC output is set by the SC 770 each time the system is powered up and whenever a new discriminator setting is entered oe or Lee tho Ce eee H an a _ or eal BT E 1 ie M o a m Fim 5 ol T LAA kh AT a T lt im J Pr ery eer i ee e 2 nie i srt Biy J egan prit en ee i7 mS a ig te as z pri p2 ot F tS m ii
4. 2 Set the vertical deflection to 1 volt division horizontal sweep speed to 0 5 usec division and positive edge triggering 500mV div and Ipsec for digital oscilloscopes 3 Place the source on the yellow dot of the lower detector NOTE t makes the alignment process easier if you tape the source to the detector 4 Adjust the trigger level and intensity on the oscilloscope for the best display E a mia i M 3 200 irt SAY iF JF ns e p 8 t ru amp 2 TA CE amp ae amp ee be 8 hoe amp Wa mis The trigger MUNG ne cic E E I E S level is critical r E AE e U O a A tc hh te hn a a E E a lh a E E O s t eee ee ee a a a a a a e E CHT S0tm CH2 T 00v Mi T 00 iE aan 23 4910kHz Figure 7C This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 70 Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 5 Adjust R1 on the HHV 448 board to achieve a peak pulse amplitude of 0 75 0 05 volts ai i The HHV 448 E boards are mounted underneath eS a UE the SCA 774 board E p N a E ree frre mi i a y D ia i i T bs itl Figure 7D 0 Figure 7E HHV 448 Gamma amp Neutron high R1 is located in voltage R1 adjustment trim pots are side the circle accessed through must be accessed thru small holes in the SCA 774 mounting plate shown above 6 Move the source to the upper d
5. 6 6 NANO CONTROLLER This is a micro controller used in the VM 250AGN to sense velocity and occupancy It converts the travel time between two photo beam sensors into an ASCII text RS232 output The inputs are also used for occupancy detection HUN het 1 GE Fanuc VersaMax a k h OL nas SUT _ Dr E E r RELAT OUIPUTS UOA PT RONDA L O SEE MAAU POR ADDO EEEa F laiar me le ee J bmi Bil i iia FN IE E Ra A ai v0 ints fa ne an 02 03 Ga Gj 208339090094 Figure 6U 6 7 RS 232 to RS 485 CONVERTER BOX This is used in the VM 250AGN The RS 232 to RS 485 converter box is mounted under the LD260 This box takes the RS 232 output from the Nano Controller and converts it to RS 485 for transmission to the SC 770 controller MODEL ASC45G RS232 lt gt R5S485 CONVERTER AUTOMATIC TX CONTROL Figure 6V This document ts the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 58 I l 5 Sa E u Systems Ltd l VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 6 8 MEDIA CONVERTER The media converter takes up to two Ethernet 10 100BaseT inputs and converts them to a multi mode fiber optic output The fiber optic output uses a SC type connector LED Indicators POWER Steady ON when power is applied 10 100 Steady ON for 1OOMbps OFF for 10Mbps LK ACT Steady ON for LINK LK with no traffic BLINKING indicates port is transmi
6. BA owailuad Compere oC 0 History Data has been downloaded Yfould you like to view y the hista data fil 7 Filename AS IJET 4 Oct 12th 2009 ae e history data file now x i Save as type SC 755 Log File a 7 The records will begin downloading to the specified file name The Transmit and RX Receive lights will flicker back and forth until the process has completed After the download has completed a Download Complete message box will be displayed Click on the No button if you do not want to view the data if you choose to view the data a screen titled View History Record will appear You can scroll through the data using the PgUp and PgDn buttons on your keyboard EA View History Record Download SOU rlisrupiesit Letts of aoe hel Power Up da 41982 4 28 53 4 1 1 Gamma Alarm Data Gamma Show Count Portal History Estras 23 A962 42853 GAvgbkg 1658 378 404 460 446 23 4 1962 a265 Nag Bkg 40 DTT 2y 4 1582 S205 GAvgBkg 1679 J76 399 460 add Download Historical Data 234 41382 6 725 LowAlem 832 0 5 452 436 ana GT Paai 0 0 0 0 0 ki ae Bi Fi weet Up 3 All Records 3y A562 62313 PowsUp 0 000 0 2y 41962 64710 Power Up oOo Oo D8 O 2055 2341982 7743 PowrUp 0 0 0 0 0 2a diTi F222 Powe Up t C Selected Records 2 432 71247 LowaAlem 925 0 0 474 451 Download last 2y 4 1562 2 25159 Power Up d 6 0 OQ Secs 30 4 1982 82251 Pow Up 0 0 00 O 30 av 1582 E2316 Low lam SH OF OO
7. Dead Zone Dead Zone This document ts the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 63 A re A Ltd Pi it VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A Systems Lt 6 10 3 IR Photo Beam Speed Sense Current IR photo beams are an IR Break Beam They have an emitter in the slave pillar and receiver in master pillar which signals occupancy when the beam between the emitter and receiver is broken When only one beam is employed the sensor works solely as an occupancy sensor Current applications employ two sensors in a portal system which makes object speed indication available Two photo beam assemblies are mounted parallel to each other approximately 12 apart Each assembly utilizes different frequencies within the IR range to prevent cross talk One sensor set is color coded black and the other yellow Signals from the sensors are sent to a Nano Controller which analyzes the timing between beam breaks and provides RS 232 object speed information and a dry contact occupancy signal to the SC 770 controller The sensors have a range of approximately 70 meters Figure 6AE Figure 6AF NOTE Pay special attention to the wire colors when wiring into a system European wiring standards for dc are Vdc brown wire GND blue wire Photo beam sensors are wired Vdc blue wire GND brown wire This applies onl
8. Figure 1B 1 4 2 Occupancy Detectors Any occupancy detector which uses a normally open relay closure may be wired in parallel with the existing occupancy detector Check with TSA s technical staff for further details This document ts the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 9 a I l ap om Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 2 0 INSTALLATION The following procedures should enable on site personnel to correctly install the system for normal operation Follow the procedures in the order given A checklist is included at the end of Section 3 0 It is recommended that a copy of this be filled out after initial installation and whenever the system is put into service after prolonged storage If necessary consult TSA Systems for assistance in case of unusual site conditions or requirements 2 1 INSPECTION Immediately inspect the instrument for mechanical damage scratches dents or other defects It should be examined for evidence of concealed as well as external damage 2 1 1 Damage Claims If the instrument is damaged in transit or fails to meet specifications upon receipt notify the carrier and TSA Systems immediately Shipping cartons packing materials waybills and other such documentation should be preserved for the carrier s inspection TSA will assist in providing replacement or repair of the instrument if necessar
9. Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 3 4 OPERATIONAL TEST INSTALLATION CHECKLIST Operational Test Form Monitor Location Monitor Spacing Monitor SN GAMMA PARAMETER SETTINGS FIRMWARE VERSION SYSTEM I D Low Alarm High Alarm Intervals Occ Hold In N Sigma Det Online LLD Master LLD Slave Relay Output On Oof Auto ULD Master ULD Slave Algorithm LiSum Horz Vet Single GAIN SETTINGS Mstr 1st Stage 2nd Stage Slv ist Stage 2nd Stage HIGH VOLTAGE Master Vdc Slave Vdc BACKGROUND CPS Det 1 Det 2 Avg Total Det 3 Det 4 Isotope Used Original Activity Mfg on Date Current Activity NEUTRON PARAMETER SETTINGS High Alarm Max Intervals Alpha Value ZMax Sequence Test LLD Master ULD Master LLD Slave ULD Slave HIGH VOLTAGE Master Vdc Slave Vdc BACKGROUND CPS Det 1 Det 2 Avg Total Det 3 Det 4 Isotope Used Original Activity Mfg on Date Current Activity COMM SET PARAMETER SETTINGS IP SUBNET DNS GATEWAY GENERAL CHECK GENERAL CONTINUED GAMMA NEUTRON O ac Wiring Correct O Test RS 232 Output O Pillar to Pillar Connections O Test Media Convert Output O Check NVRAM Battery v O Tamper Switch Function O Connect Battery O Tamper Switches Secured O Check for Short O Battery Voltage V O Turn LD260 on O Offsets Between 1 amp 15mv O Power Supply Voltage v O Thru Beam Sensor Function O Verify Audio Visual Alarms O Ultrasonic Sensor Function O Align 1st amp
10. Opens the menu to display and or adjust the LLD and ULD set points The discriminators set the energy levels at which the system will accept counts Neutron levels set to factory defaults of 0 504 and 5 040 volts are normally acceptable The master and slave discriminators are set independently to permit maximum flexibility in programming the system In almost all cases the settings will be the same for both pillars Proton and Triton Recoil Region Counts Gamma Hini i He Sensitivity 0 504 a Region Discriminator Set Point Three methods of adjustment are provided 1 Direct Entry reference Section 3 3 2 2 for direct entry method 2 Manual Adjustment reference Section 3 3 2 2 for manual adjustment method 3 Factory Defaults Pressing the asterisk lt gt key at either the master or slave screen will load the default discriminator settings LLD 0 504 and ULD 5 040 for a given pillar Complete this step for both the Master and Slave pillar This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 33 I l f Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 3 3 5 3 CLEAR N CNTS The SC 770 keeps a rec
11. TSA recommends running 5 15 second passes After five passes all variance readings should be less than 0 150 Refer to Appendix_A Section 10 0 for further details on the variance test and the formulas used Press the pound lt gt key to terminate the variance test NOTE The variance for a detector that is disabled will be 99 00 7 2 4 Operational Test Due to the many different environments and materials being monitored the operational test will vary from site to site although several general principles apply in all cases l Select an appropriate source and instruct the driver or pedestrian to drive or walk at the normal speed used for monitoring 2 Repeat the test several times and record the sources and values used This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 73 I l u Systems Ltd f VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 7 2 5 Performance Verification Checklist Gamma ___ Repairs made if any list component and type of repair System Alignment unchanged new values PARAMETERS Low Alarm set to High Alarm set to Alarm Comparison Interval set to Occupancy Hold in set to N Sigma set to Detectors Online FUNCTIONS Master LLD set to Master ULD set to Slave LLD set to Slave ULD set to Variance Test 1 2 3 4 Relay Output ADVANCE Algorithm set to Sum Horizontal Ve
12. 2nd Stage Gains O Verify Amber Light Function O Weather Seal Cross Bars O Utility Cabinet Switch Secured O Run Variance OF Set Clock Date O Check Bkg Time 20 sec O Check Bkg Nsigma 0 0 O Check Profiling ON O Verify Gamma Alarm O Verify Gamma LOW Fault O Verify Gamma HI Fault O BNC GND Adjust O Neutron Enable ON O Verify Neutron Alarm O Verify Neutron HI Fault O Charging System Check O Desiccant Placed O Bottom Foamed In O Media Conv Half Duplex Test Completed By Date This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 36 A Er A Ltd I l it VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A Systems Lt 4 0 PC COMMUNICATIONS The TSA PC Communications Program SC 770 Com is supplied on the CD that ships with the system documentation The program requires an IBM PC compatible computer running Microsoft Windows XP 2000 NT4 98 or 95 The program allows the operator to examine the system parameters and download data from the non volatile RAM NOTE Communications with the SC 770 Com program will not work properly if profiling is turned ON Profiling must be turned on for monitoring continuous state of health messages via Ethernet or serial communications in Hyper Terminal 4 1 INSTALLING THE SOFTWARE To install the SC 770 com program go to www tsasystems com and select the Archives pull down m
13. 465 S23 SF 41982 R251 Highslem 84 SSO A 483 B23 Records 30 4 1982 222 HighAlem 17895 3331 1556 483 523 izay 3 4 1962 biad HighAlem 15212 12200 204 476 522 Records remaining 1935 fal SO 4 1982 LS HighAlem 16773 TH44 2345 476 S14 I 4 1982 22351 HighAlam 16240 10247 4996 477 S20 JV 41962 E2356 HighAlem 15695 7229 7660 487 523 SO 41962 E241 HighAlam T6332 5371 10008 491 522 30 4 1982 24 6 HighAlann 16240 5433 ya 432 S23 J0 413982 F241 AighAlem 16409 8142 T254 491 S22 S0 4 1962 B2h16 HighAlem 14375 S695 4475 45 510 30 41362 E2 HiehAlem 10799 BOSS 1774 493 Ag E Figure 4Q aj Figure 4R This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 4 u Systems Ltd ni f VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 4 4 2 Extra The About SC 770 Com button displays the version information of the program as seen in figure 4U The View Saved History File button opens a file viewer window as seen in figure 4T The files may also be viewed using Notepad or any other text editor 12 11 2017 1271172011 0 1371172011 1 1371172011 1 1371172011 1 1371172011 2 1371172011 1371172011 1371172011 1371172011 1371172011 1371172011 1371172011 1371172011 1371172011 1371172011 1371172011 1371172011 1371172011 1371172011 3 74 20 1371172011 3 74 20 1371172011 10 14 20 1371172011 10 14 20 137 1172011 11 14 20 1371172011 11 1
14. Data Gamma Show afl Parameters Occup Court 2 High lar 000 Alarm Count 1 Low Alarm Clock Calendar eta MM DD YY HH MM Hald ini Ekg Time ar 12 fi2 2005 11 fas N 5igma Detectors Algorithms Ekg Sigma W M Single LLD w 2 i Vertical ULE 3 Horiz 4 W Sum Figure 4B 4 3 1 Gamma Alarm Data Displays the date time and counts from the last six gamma alarms The View tab shown in figure 4D displays the data leading up to the alarm in a graph format SC 7 7 0 Gamma Alarms Data Last 6 Alarms 12 12 2005 11 51 32 12 12 2005 11 51 39 lew Alarm Data 1271272005 11 52 5 12 12 2005 11 52 14 iewd Detector 2 12 12 2005 11 52 23 iewS F Detector 3 Ww Detector 4 w SUM Det 1 Det 2 Det 3 Det 4 SUM a ato aha agp Figure 4D 12 14 2005 11 52 33 This document ts the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 38 f u Systems Ltd I l VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 4 3 2 Gamma Show Count Displays the gamma counts in cps for each detector and the sum The data is updated every 5 seconds SC 7 70 Show Detector Gamma Counts Show Detector Counts 405 4 4 PORTAL HISTORY Figure 4E Allows the operator to download the entire contents of the system s non volatile RAM or any number of the most recent records After the data is downloaded the operator may elect to view the curre
15. E AR 28 ee OO VERSION sec cecsercenecer ceceracesnoneeeneaeeeazqusencueececneatounoneeeennaseceeaeuuaeossendecseoniecostaceaenee 28 This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 2 E a ae im A Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A rN ar a E E EEE A EA EN 28 o PALARIE Er ne ee eee ee 29 eh BEG INN speeder Ses cco E T E Gose caniea ncaa nceheade 29 ers es STEND oe a ee eee 29 Os ees ome ol ot UI em er eee ee ee eee en eee 29 3 3 4 TNE TONE Pay lS secs sranr cca nce eats nce septs cc sate aces anaes news seeteceed et ace 30 se a tO Se ne eee eee eer ee ee 30 3 3 4 2 MAX INTRVALS 00 cccccccccccccccccccccccceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeessaasaeaaaeseaseasaassassseeeeeeeeaeaaass 30 es ee am do 52 lorem renee eee E E 31 AA SAS WO V AL e A ee eee ee 31 Fe a ges es E E E 32 3 3 5 NEUTRON TONG TION eer evo eee 32 i PION C OUNT er a E E E E E E E 32 es fe D Ge x ete fd T aeaa E EE A E AE A O EEA 33 ee ss CEER NENE a E EE E A ER 34 i is ee NEU ENABLE erromar irnn E E A E ee 34 3 3 6 COMM SET aE se acre E E ee eaaeces 34 e E E a E E A E E A EE AE EE AEE 34 IoC ULNE eee E EE AEE E aie 35 TOS DN an A E A EEE eee 35 i es Oe CATENA I a ee EAE E EAE E EAE E 35 3 4 OPERATIONAL TEST INSTALLATION CHECKLIST eaeonnnnnnnnnnnennnnnnnsnnnnnsssnssesssssenee 36 BU FO COMM NIC ATION S oreren EE ER 37 4 1 INSTALLING THE SO
16. Gain Test Point J R17 thru R20 eae Stage Gain E wmi i i pe S Adjust LN h P r iadi ue padi elt 9 ite TP5 thru 8 Wi Bi hi 2 stage gain 7 TP9 3 to 5 Vdc TP10 thru 13 LLD TP14 thru 17 GND ri TP18 thru 21 ULD sipisis 1 at alae be 1314 TP30 TP34 an _ 5Vde 3 3 Vdc Ref Disc Ref Voltage TP31 Switched TP33 Battery 5 Vcc Voltage HHV 448 o N First Stage A Gain Adjust HHV 448 Gamma High j Neutron High Voltage Adjust Voltage Adjust R1 Ca a aa ka R1 TP32 as a ground The close proximity to switched battery voltage makes it LIKELY you will short the battery directly to ground This document ts the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 69 I l T cS E gs Systems L VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 7 2 2 3 Aligning The HHV 448 1 Stage Gain The high voltage is set to ensure that the peak pulse amplitude at the output of the first stage amplifier is at least 0 75 volts This setting will provide the best overall performance of the system If the high voltage is too low the signal to noise ratio will suffer While following this procedure refer to Drawing 21 Schematic and Drawings 15 and 22 Component Designator 1 Attach the oscilloscope to the SCA 774 board and set as follows channel 1 probe to TP1 and probe ground to TP14 Ensure that the scope probe is set to 10X
17. I D RS 232 only PROFILING N ASCII string via RS 232 amp Ethernet 2 NEUTRON 1 PARAMETERS MAX INTERVALS ALPHA VALUE 2 FUNCTIONS SHOW COUNTS DSCR ADJUST CLEAR N CNTS NEU ENABLE 3 COMM SET 1 PARAMETERS SUBNET GATE WAY This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 18 0 1 33333 false alarm rate ll approx the same 504 amp 5 040 92 168 001 100 55 255 255 000 00 000 000 000 00 000 000 000 o leading O s when setting up in a PC SlOlO N e o gt AJRIWIN A OJP l O H HlE N H wH O 3 o gt gt C S F125 a e Nw oO i lt jo Jlo 3 0 Mm lO No IN 5 U1 z O S 310 s gt U1 go 3 B 8 el i Q cT OD lt OD Q s I l Systems Ltd Ly Ray E gs VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 3 3 1 GAMMA PARAMETERS HI LO LEVELS Background fault levels INTERVALS Number of 200ms intervals per comparison OCCUP HOLDIN Number of 200ms intervals to hold in after occupancy NSIGMA N sigma radiation alarm level DET ONLINE Number and position of detectors in the system 3 3 1 7 HI LO LEVELS Sets the low and high background fault levels in eps per detector If the counts fall outside this window the system will indicate a HI or LO Gamma background fault and will not allow further operation until the problem is corrected Wn B WD N
18. Output GB xxxxx xxxxXx XXXXX XXXXX CRLF Definition Gamma Background sent every 5 seconds The one second counts are averaged from a 20 second count buffer The 20 second buffer is based on four 5 second rolling averages Output NB xxxxx xxxXxx XXXXX XXXXX CRLF Definition Neutron Background sent every 5 seconds The one second counts are averaged from a 20 second count buffer The 20 second buffer is based on four 5 second rolling averages Output GH xxxxx xxxxXx XXXXX XXXXX CRLF Definition Gamma High Background Fault is sent every 5 seconds for the duration of the fault condition The high background fault condition is a settable parameter in the controller Output GL xxxxx XxXXX XXXXX XXXXX CRLF Definition Gamma Low Background Fault is sent every 5 seconds for the duration of the fault condition The low background fault condition is a settable parameter in the controller Output NH xxxxx xxxXxx XXXXX XXXXX CRLF Definition Neutron High Background Fault is sent every 5 seconds for the duration of the fault condition The high background fault condition is a settable parameter in the controller This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 88 Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A RS 232 OUTPUT Output GS xxxxx xXxxXx XXXXX XXXXX CRLF Definition Gamma Scan Gamma counts sent every 200mSec while occupied and
19. and the LD 260 should be checked for open conditions and replaced if faulty In this step the wires to the IR detectors and lights are tested 8 3 INDIVIDUAL ASSEMBLIES This section deals with the individual assemblies and how to repair them As stated at the start of this section the steps only go to board level 8 3 1 Gamma Detector Assemblies Each gamma detector assembly is held in place with two releasable zip ties and a bracket To remove a detector disconnect the BCN and MHV connectors shown below remove the bracket by backing out the two screws holding it in place release the two zip ties and carefully remove the detector NOTE The signal cable is the one with the BNC connectors and the high voltage cable is the one with the MHV connectors which are the larger of the two BNC Connector MHV Connector Figure 8A Figure 8B 1 Using a DVM with a high voltage probe verify the high voltage at the MHV connectors on the SCA 775 This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 81 t gil I l Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 2 Disconnect the MHV connectors from each detector and measure the high voltage from the center conductor to ground The voltage should be between 600 and 1 500Vdc and stable within 5 Vdc Record the voltage and test range stability of the HHV 448 board Adjust R1 on the
20. disconnect the 12 volt power supply and removing the two screws holding the mounting plate to the Neutron poly block Gamma Detector Assemblies can be removed by disconnecting the BNC and MHV cables removing the bracket and releasing the two zip ties securing the detectors in place Reference Section 6 3 Handle the detectors with EXTREME care to avoid damage To reinstall a detector reverse the previous steps NOTE Never hold or move the detector by the neck or photo multiplier tube as it may damage the assembly The SC 770 and SCA 775 are mounted in the middle portion of their respective pillars Drawings I amp 2 Four Phillips screws hold each module onto the back plate of the pillar To remove the module disconnect the cables going to the unit release the four screws holding the lid closed open the lid then remove the four screws in the corners of the module To reinstall this module reverse the previous steps The IR Occupancy Sensors are mounted on the pillar doors To remove disconnect the wires take special note as to their location and remove the IR mounting nut s Refer to Drawings 1A or 2A for connections and wire colors To reinstall the sensors reverse the previous steps The Ultrasonic Presence Sensor vehicle monitors is mounted on the pillar door To remove disconnect the wires and remove the outer 37mm nut Remove the sensor Refer to Drawing 2A for connections and wire colors To reinstall the sensor reverse the p
21. handle turn the handle clockwise and pull The door may stick a little due to the weather seal bonding to the door face The SC 770 is located in the center of the pillar The SC 770 has a twelve key keypad on the face of the controller Using this keypad the operator can perform system set up and diagnostic tests After the system has been powered up and acquired its initial background the set up menu can be accessed The system parameters and diagnostic functions are protected by password access This section outlines the menus and provides a detailed description of the functions Pressing the number associated with the desired operation permits the operator to access that function Pressing the zero key will display the next page of the current menu where appropriate Pressing the pound lt gt key will return the operator to the previous menu or exit the menu mode This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 16 f Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A L When a parameter display contains a NEW prompt below it a new value for that parameter may be entered from the keypad Pressing the asterisk lt gt key clears the current operator entry pressing the pound lt gt key accepts the current value or the new value that has been entered by the operator It s always a good idea to go back an
22. i m pa imig yes CEL k li a ki id Figure 6G Figure 6H This document ts the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 53 A A Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A I l f 6 2 2 The HHV 448 The HHV 448 high voltage power supply board provides regulated dc high voltage to the Voltage Divider networks PB 4 7m which are attached to the photo multiplier tube on the detector Also refer to Section 7 2 2 3 figure 7E i Lt om ee Ves Figure 61 High Voltage Plate High Voltage Plate Top Side Bottom Side This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 54 lm A Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 6 3 THE DA 630 DETECTOR ASSEMBLY GAMMA The DA 630 Detector Assembly consists of a plastic scintillation detector coupled to a photo multiplier tube PMT through a plastic light pipe A voltage divider signal network VD 580 plugs into the PMT base supplying high voltage to the PMT and returning the gamma signal to the SCA 775 In general the detector converts gamma rays to photons which are amplified as voltage by the PMT The VD 580 is the only field replaceable part and can be removed by releasing the three springs and pulling it away from the PMT base as shown in figure 60 The MHV and BNC may be detached b
23. if available 4 Adjust R17 on the SCA 774 board to obtain a 2 0 0 1 volts pulse amplitude 5 Move the probe to TP6 and the source to the yellow dot on the upper detector 6 Adjust R18 for the same pulse amplitude This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited Ja Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A A Pos 20 Uns PURSUE Soe ee se ee Pe ee Pe ee ee ee a d ee ee ee ee ee ee a ar eee eee eee ee ae ae ee ee e E REAA TT a a a a a a a a a S Sb ee 8 be ee ee ee ee eh ee UM 200 M T E n E o a a poe ig A a eee eee eee ity ee Pe Be eee eee eae Cursor 1 2 04 ee E E PE tee Cursor 2 4 04 M 1 005 twi chi som 8 8820kHz EN Alma g NE o e ET mT CH2 700V T 00 us RHI Sime 49 1208hHe Prae Prag Figure 7H Figure 71 Setting the 2 Stage Gain signal to 2v with the scope set at 500mv div Setting the 2 Stage Gain signal to 2v with the scope set at 1 00V div 7 2 2 5 SCA 775 Slave Pillar Repeat steps 7 1 2 3 7 1 2 4 on the slave pillar This completes the gamma alignment NOTE Always run a variance test after an alignment to ensure that everything is working properly 7 2 3 Variance Analyzer Mode After an alignment is completed a variance test should be performed The variance analyzer can identify potential issues with the detectors and associated electronics
24. level Anything more complex than this requires that the instrument or assembly be returned to TSA 1 2 GENERAL DESCRIPTION TSA s Portal Monitors are highly reliable systems for the radiometric detection of special nuclear material SNM The Vehicle Portal Monitor Model VM 250AGN is designed for outdoor installation The Pedestrian Portal Monitor Model PM 700AGN is designed for indoor use When the portal is not occupied the system will automatically monitor background radiation and periodically update a display on the controller When the system is occupied the system begins fast count monitoring and will alarm if the count exceeds a predetermined alarm level The system will generate a background fault if the background radiation level exceeds or falls below preset limits Both monitors are equipped with tamper switches and power fail indicators These conditions may be monitored from a remote location using a TSA model AM 270 Alarm Monitor A Portal Monitor system can consist of one or two pillars which contain the subsystem modules The VM 250AGN pillars are spaced far enough apart 4 6 meters or 15 feet to permit safe passage for vehicular traffic PM 700AGN pillars are spaced at 82 centimeters or 32 inches The monitors are powered by a battery which will provide at least 12 hours of continuous service in case of a power failure The battery is continually charged by the power supply as long as ac power is available The s
25. the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 28 I l u Systems Ltd f VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 3 3 3 5 F ALARM TEST The False Alarm Test displays the number of alarm comparisons that have been made and the number of alarms that were detected These values are cleared when the system is turned off The primary use for this feature is to test the number of nuisance alarms in a controlled environment 3 3 3 6 BKG NSIGMA Sets the sigma value for a throw through alarm This routine runs continuously in background mode to ensure that a source is not thrown through the monitor without an occupancy being sensed Throw through alarm comparisons are performed every 200 ms during background mode The range is from 0 0 to 99 9 Setting the value to 0 0 will disable this feature A very high false alarm rate can occur 1f this value is set too low 3 3 3 7 SYSTEM ID Assigns an identification number to the system The number is used to uniquely identify the system to a PC This number must be used by the PC to establish a communications link This range of this number is 1 32 767 This number is set to 1 when the system is shipped from the factory 3 3 3 8 PROFILING The controller can be set to continuously output an ASCII data string to the Ethernet and RS 232 outputs The display will show ON or OFF Pressing any key other than
26. these instruments Manufactured by TSA Systems Ltd 14000 Mead Street Longmont Colorado 80504 9698 USA Phone 1 970 535 9949 Fax 1 970 535 3285 info tsasystems com This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited l E a ae im A Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A Portal Monitor Operations Manual Models VM 250AGN PM 700AGN Table of Contents LO BIN PICO CLIO IW csr oen E A I EE E ETA 6 1 1 SCOPE AND PURPOSE OF MANUAL 0 cccccccccccccceceeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeees 6 L2 GENERALDESCRIPTION cies cureeatoce secs srse teen eoceeienagasaeeyaesest vous uevencsedonaussatenuedesteveesteuareecnsoeae 6 1 3 SPECIFICATIONS ete E E A E E EE E E E 8 1 4 OPTIONAL COMPONENT S wissasicivssdsctacasaetssasdinndaeasiesnseetoautavadsndsisehbnctaeestaastestoaaharsdandstaxtiacdaverss 9 1 4 1 Alarm Monit r Model lAM 270 sscisierneorenreroririres erario srann A eon Eee NETES rE Ta Sie 9 1 4 2 RCC UO AIAG y DEE eeraa E E E dec pvivatosauy lt ceaeuteanss 9 20 MINS EAE ATI casscccssecsexcwsanssecusasessssvasssnnsssseacunnccssnsassastevssssacsecassssacessevasssevesssesiess 10 2 1 INSET IN ashes eerste specced ntsc AEEA hae hence access nesta cc saa ae ceed eee en sess 10 2 AA TAINS CMAN E lea E EES 10 Zed BOE AC tat ses nee A atone saad A E A 10 2 1 3 SITIO OLI1O erriren rne A A AE T NEE EEEE EEEE EE EENEN AE ES 10
27. to stop cosmic nuisance alarms P s place holders Output SN2 0 504 5 040 0 504 5 040 PP CRLF Definition Setup N eutron 2 Master Lower Level Discriminator Master Upper Level Discriminator Slave Lower Level Discriminator Slave Upper Level Discriminator Master lower and upper level discriminator voltages LLD s amp ULD s Slave lower and upper level discriminator voltages LLD s amp ULD s Ethernet Input Only The following message is accepted to set the time and date on the SC 770 controller It uses UDP messaging on port 1600 INPUT 01 02 03 04 05 06 07 CRLF Definition 01 Attention character Time Date update message HH MM SS MM DD Y Y 22 bytes 01 02 03 04 05 06 07 r n translates into message type 1 for a Date Time message with a time of 2 03 04 and a date of 5 6 7 This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 92 fill ap om Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 12 0 PARTS LISTS 12 1 SPARE PARTS ORDERING INFORMATION To facilitate the processing of spare parts orders the following information is required Product Number Product Serial Number TSA Stock number Part description from parts list When ordering PROM chips the software version is required This can be found on the PROM label NOTE Model number suffixes are generally not included in the text of the manu
28. 0 and disconnect the ac line cord from the battery charger Remove the charger by removing the mounting screws To reinstall the battery charger reverse the previous steps Neutron Detector Bank contains two He tubes To remove tubes disconnect the MHV connectors unscrew the four screws holding the front lid in place and take off the lid Remove the brackets holding the tubes in place by taking out the screws holding each bracket in place The tubes should now be able to slide out the bottom of the hole Reference Section 6 4 RS232 to RS 485 Converter can be found under the LD 260 Remove the two screws holding the LD 260 in place then remove the two standoffs holding the converter to the plate next remove the power wires connected to the converter by releasing the screws in the power connecter PMFX Box assembly can be removed by disconnecting all BNC amp MHV cables make sure to label where each cable is connected to ensure correct reinstallation Unscrew the four screws inside the This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 79 I l u Systems Ltd t VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A enclosure holding it in place to access these screws take the four screws holding the lid in place out and remove the lid Reference Section 6 4 1 Media Converter can be removed by disconnecting all Ethernet and fiber optic cables
29. 22 SITE SELECTION AND PREPARA TION ieicdsscsleisosestivacsssenstesesindssealeideneetaetenteeieen eeu 10 2 3 DETECTOR CABINET INSTALLATION se carseat tice erecta r i E esos 11 De AT RECA TINS Ti TION cosine ccs ee 11 2 5 PILLAR TO PILLAR INTERCONNECTIONS cite cistiosscedecriacadecesseeancaviesdsnosseeatensaadeemeeanrers 13 2 6 SIARI UP AND SELF TEST oncesapneswacanssustwasavdaaconsunseasasuonaaanguosnaadaaseaeusunteasacuontanreaeeaeteomeean 14 3 0 SET UP AND PROGRAMMING oesssssssssssesossnsscssossnssssssssnsssssossnssasssssnssnssnssasensessees 15 3 1 vo old BS PEE T T E A ee ee E E I E E eee ee N E E ene eee 15 cao PAS WORD CONTROL e E A ETA 16 3 3 PROC RAMMING PHE S SEE M ae e E E E 16 3 3 1 GAMMA PARAME TRS eee acres ececeticdecea extetecec oeei Gove e EEr Oi E 19 Sod M ECOLE 2 De aee ene E EE E E ee ES 19 3 3 12 INTERVALS acdeacctonenchnnancnchonnhanhiwadecnctedateashnntacteheanhashinadscnaeelntendinatncdehesnhesbivadsdaceclonexts 20 S UP TOLDI ee E E A E E AE 20 ee E 2 E E EOE EO AE 21 PSr DE Beet a 6 Dh ea AE A EE E E EEE EA 22 3 3 2 GAMMA TUNS TION ere E E E 23 oe POON COUNT a E E E A E A A EA E E EAE EES 23 e DCR ADIU T ee a A E E E E E 29 a VARAN E e N E E E E 25 3 3 2 4 SET CLOCK cccstassosenasdnncesesanesedecesestsessseseiesinecesgsstagedesesantaneanacaniaaadeddsasacdanacaeaoacadacasazacs 26 Ioa RY OUTPUT ee E E AE E AER 26 3 3 3 ADYAN CEDG AMM A ser EARE 26 o AE OCORTTTIN e E E E E EE e are 27 TIe BEC TIME aena E T E E E E E E
30. 4 20 1371172011 12 14 20 1371172011 12 14 20 3 1420 4 14 20 4 14 20 5 14 20 A 14 20 6 14 20 6 14 20 T14 20 T14 20 0 14 20 8 14 20 Fower Up Fower Up N Avg Bkg G 4 g Bkg Neu HF aut N Avg Bkg G Ayvg Bkg N Avg Bkg G Avg Bkg Avg Bkg G Ayvg Bkg N Avg Bkg G Ayvg Bkg N Avg Bkg Avg Bkg N Avg Bkg G Avg Bkg N Avg Bkg G 4Avg Bkg Avg Bkg G Avg Bkg N Avg Bkg G Avg Bkg Hag Ekg G 4vq Bkg H 4vg Bkg G 4Avo0 Bka Extra Functions About SC 770 Com View Saved History File u Figure 4S Fall gt BG 2h 2h 4G 48 E E 2 g 797 400 422 442 453 4025 Yoo 1090 1064 1051 ae E a 8 Tf42 405 435 44 0 2 2 2 2 1740 406 428 448 0 2 P 1729 403 425 446 0 2 2 ae Tf24 402 425 444 0 2 2 2 3g 6 450 a 2 2 O 402 421 453 6 2 2 2 404 424 455 Dec Coates eee 1736 401 421 454 G te has tae TA 1745 404 425 456 Be ee tae a ae 1754 407 426 456 Ooo Se Se SA 1749 406 424 457 457 458 Mi 455 hi 455 Ph 457 hi 459 Ph SclOoM version 1 02 461 Compatible with SC 770 Firmware 460 version 1 06 or greater 462 T54 Systems ltd 09 2003 tag website waw tsasystens cor 465 462 hat Peete errr ers fl Close Figure 4T Semnnne nee ee eee Figure 4U This document ts the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 42 m ni Ji ii a Systems Ltd VM 250AGN amp PM 700AGN M
31. 83 Ii u Systems Ltd 9 0 GLOSSARY t VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A ADC Analog to Digital Converter is an integrated circuit that converts an analog signal into a binary number than can be used by the microprocessor CPS or cps Counts Per Second High Background Alarm Fault The condition that occurs if the counts exceed the programmed high background level This condition prevents further operation until the problem is corrected Normally set in cps LCD Liquid Crystal Display LED Light Emitting Diode LLD The Lower Level Discriminator provides an adjustable threshold that determines the lowest signal level that will be accepted as a nuclear pulse by the system s electronics Some systems have both upper and lower level discriminators that can be used to set a discriminator window The discriminator window can be used to effectively reduce the background counts and increase system sensitivity to certain isotopes Low Background Alarm or Low Background Fault The condition that occurs if the counts fall below the programmed low background level This condition prevents further operation until the problem is corrected Usually set in cps POST Power On Self Test Rolling Background This is the background accumulation method used in most of TSA s instruments Background accumulation is done in ten separate buffers each buffer representing 1 10 of the total background time As each b
32. FTWARE eee ne Re ee EP er Oe ee ee 3T 4 2 SETANG TA OWT NUMBER perre E S E TE E E E E 37 4 3 GAMMA PARAMETERG ccccccccccssssccceeeeeeeeeeeeeceecececccececeeecececeesececeeseeeeeeceeceeeeeeseeeeeseeeeeeas 38 4 3 1 Gaan Aa D ca ce vases E E E E E A EA 38 4 3 2 Gam SI WV COON or A A E E E E E 39 w PORTALE TOR o toa iemesea see seca aoe oadrcetore ee eeanten ona anieteedeneateds eee ecannaeees 39 4 4 1 Downloading Portal History Using SC 770 Com ccccccccccccccscccccceeeeeeeeeeceeeeeeeeeeeeeeeeeeees 40 4 4 2 Ea n E EPE EEE EI A A E E A E E E 42 45 NEUTRON PARAMETERS erna trenn EN E EES E E ES 43 4 5 1 Neuron SOC OUI crc secetortenenseneytentons ceases E E 43 30 THEORY OF OPE IAT LON i cccveacss cs svicexcsascsssestoeseuesecscactssas TEENETE arareo 44 5 1 GAMMA TER TIE W eemo r A EEEE EE ETE EES 44 Sa NEUTRON OVERVIEL W oeira e E 46 5 3 MODE e A E E A T E A A 48 Jol SE SSE MO a E E E E N E 48 Dione DBackoround Mode cereis ne 48 5 3 3 FP CnC N 06 ene eee E en eee ee eee eres 49 5 3 4 Variance Analyzer Mode Gamma Onmly cccccccccccccccceeeeeeesseeeessseeeeeeeeeceeeeeeeeeeeaaaaaas 49 600 COMPONENTS crcscecssecsctasassescectvessesscctunsetscascesussssetucsncasscacsacssieesasseresvasssusseassaantiauss 50 6 1 LEE e a A ea E E E A E E E E T 50 6 1 1 THE SCE Ti E T E EA 50 6 1 2 FR BOL BOI d e E E E E E A E EEE A 51 This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly pro
33. HHV 448 board to at least 50 volts above and 50 volts below the recorded voltage to ensure that the high voltage is operating properly If this voltage is out of spec and or will not adjust over this range replace the defective HHV 448 board before continuing with this procedure Otherwise adjust R1 to its initial value Verify the signal outputs from the detectors using an oscilloscope Set the oscilloscope to 500mv division vertical gain and the time base to 50 0us division and trigger to negative slope Use the existing BNC cable from the detector and connect it to the oscilloscope probe input as seen in figure 8D If necessary the BNC cable from the detector may be extended using a BNC to BNC adaptor A O M The oscilloscope should display negative going pulses ranging from 50 to 1200 milli volts in amplitude as seen in figure 8C EM A iS e Ei E SE O ill caim a a SOMOS TTI MUT anr uGRAbtE lib Figure 8C Figure 8D After placing a 10uCi source of Cs on the detector the above display should Repeat this test for any suspect detector appear figure 8D NOTE J f the pulses are not present for any detector check the trigger level and intensity on the scope If the pulses are not present substitute the voltage divider assembly with a known working assembly or replace the entire detector assembly The system must be electronically realigned after a detector or SCA component has been replaced This do
34. History Using SC 770 Com your laptop figure 41 1 With the monitor turned ON plug the female end of the 9 pin Serial to Serial cable figure 4H into 4 The screen in figure 4L should appear Click on the right arrow button until the Portal History tab is showing as seen in figure 4M then click on the Portal History tab figure 4N Pot Gamma Parameter Gamma Alam Dats Gamma Show 4 Setup Eih PUT and riid Gamma Alam Data Garma Show Count Portal History Esta al Set Commurscohons Fot iF COM C CONE C COMg C COMg BarmaN euron Lint Humber 1 XEN Figure 4M Pornos ir Od sstprical Fata Gamma Alan Duta Gamma Show Count Petal Hiiop Ema ale 1 Figure 4N 5 The default setting under Download Historical Data will have All Records selected figure 40 leave this setting as it is and click on the Download button This document ts the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 40 S A Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A I l t 6 Select the desired location of the file to be saved by using the pull down menu on the Save in box then type desired file name in the File Name box next click the Save button Save ir E Desktop e o et E i imy Documents a My Computer Sony Network Places public on samba serwer TsaZ amp Network Connections
35. Most systems that use n sigma alarm levels operate in counts second Alarm Level N bkg bkg Where bkg Background counts Sigma lbkg N N Sigma value This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 85 I l u Systems Ltd f VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A RELIABLE DETECTABLE ACTIVITY RDA FORMULA This formula calculates the minimum activity in disintegrations per minute that can be reliably detected under a given set of operational conditions p CON CONn 4 FAYBKG BKG 2 e F BKG CT poa 2200 6 37 E Where BKG total background counts per count time CON confidence sigma CT count time in seconds E Decimal efficiency 1 e 10 0 10 F false alarm level in cps FA false alarm sigma G intermediate variance RDA reliable detectable activity in DPM SIGNAL TO BACKGROUND RATIO The following formula is helpful in determining the optimum discriminator settings Always perform a variance test at the final setting of the lower level discriminator to ensure that system noise is not being introduced into the amplifier stage 5 Q E L JB Where Q Quality factor S Net signal count with source background B Background count Higher values of Q result in better sensitivity This document is the exclusive property of TSA Systems Ltd Unaut
36. O Re These faults are intended to flag a failure in the detector or electronics and to protect against artificially elevating the background to reduce the monitor s sensitivity The precise settings will vary with local conditions and requirements but a good starting point is usually half of the average background for the low and 3 times background of the average background for the high The previously mentioned percentages are based on a single detector s counts This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 19 I l u Ltd f VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A Systems 3 3 1 2 INTERVALS INTERVALS actually controls two functions 1 The number of 200 ms intervals to look back after the system detects occupancy 2 The number of 200 ms intervals that are used for each alarm comparison This feature ensures that the front of the approaching object is scanned and prevents it from affecting the background The factory setting is 5 intervals one second but the optimum setting may vary with local conditions NOTE The number of intervals is an important parameter Reducing the number of intervals results in fewer counts per alarm comparison i e poorer counting statistics which in turn increases the measured false alarm rate If the number of intervals is set to anything except 5 the occupied count rate i
37. Vehicle and Pedestrian Monitor VM 250AGN PM 700AGN Operations amp Service Manual f Systems Ltd Nuclear Radiation Measurement Solutions Doc 5000 Rev A January 30 2006 ap I l t VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A D Systems Ltd STANDARD WARRANTY FOR TSA SYSTEMS INSTRUMENTS TSA Systems Ltd warrants this instrument to be free from defects in workmanship and materials for a period of twelve months from the date of shipment provided that the equipment has been used in a proper manner and not subjected to abuse At TSA s option repairs or replacements will be made on in warranty instruments without charge at the TSA factory Warranty of sub systems made by other manufacturers will be extended to TSA customers only to the extent of the manufacturer s liability to TSA TSA reserves the right to modify the design of its product without incurring responsibility for modification of previously manufactured units Since installation conditions are beyond the company s control TSA does not assume any risks or liabilities associated with methods of installation or with installation results Every effort is made to keep the manuals up to date and accurate However because TSA Systems is constantly improving and upgrading the product line TSA can make no guarantee as to the content of current manuals No obligations are assumed for notice of change or future manufacture of
38. al However the suffixes in the parts lists must be included on orders for spare parts FOR ASSISTANCE CALL TSA Systems Ltd 12 2 RECOMMENDED SPARE PARTS The list of spare parts given here is based on the following assumptions One that the maximum downtime allowable is 2 hours and two and that a technical background is not needed to perform the repairs Stock Q Description Mfr Part oA ee OPPA cue tae shelf life He TUBE 2 x36 4 STROBE BLUE DA630 GAMA DET HHV 448D This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 93 u Systems Ltd 13 0 LIST OF DRAWINGS Ii t VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A Drawing Description VEO AGI E a E T E E 1 YM SCA GN FITS eissernir AEAEE EENE EF 1A PM I00A GN WIFI DiAgraii sccecsvcsssisesiuceccessesssvesuaccsvessssanseecesssesosenisuessssss 1 VM 2Z50A GN Wirm DUA EAM cree cccscccesesuscenscavensceescesess ccuisacceseosessasescsecsees 2A SCAFO External VOW coreia r E E EE EES 3 SC 770 Wirin CAE AIM sco csacesessscsscansssiscuscxccssanessessensdacssavesseesssasanseessuessetes 4 SCE 70 TGC ANY TOW eccacecececccscesarscoasccsvencsussccscosvsasncossctsasscsssacssscsnsesccsaavuseses 5 SC 771 Schematic Diagram sheet 1 Of 4 cccccccsssssssssssscscccescccccccesceeees 6 SC 771 Schematic Diagram sheet 2 Of 4 cccccccsssssssssssssccccesccsssecscss
39. anual Doc 5000 Rev A 4 5 NEUTRON PARAMETERS Permits the operator to view the neutron parameters The parameters cannot be changed from the PC SC 7 70 Neutron Parameters Portal History Estra Parameters High Alarm i i N Oecup Count 59 Max Intervals 3 N Alarm Count 0 n as Clock Calendar MM DO w HH MM Alpha LLO ULD 4 5 1 Neutron Show Count Displays the neutron counts in cps for each detector and the sum The data is updated every second SC 7 70 Show Detector Neutron Counts AAI Show Detector Counts Figure 4V Figure 4W This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 43 a I l ap om Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 5 0 THEORY OF OPERATION The software algorithms are totally different for the gamma and neutron systems GAMMA OVERVIEW covers the gamma operation only Refer to NEUTRON OVERVIEW for details on how the neutron algorithm works 5 1 GAMMA OVERVIEW The portal monitor makes its decisions for radiation alarms in the following manner A level for the desired alarm threshold n sigma is selected by the operator using the keypad Whenever an occupancy is sensed the monitor enters FAST COUNT mode and begins making alarm comparisons based on the parameters that have been stored in the controller s FLASH memory When unoccupied the portal mon
40. as they may force water into the enclosure which may cause the system to malfunction and or damage the perimeter door seals 7 1 PERIODIC INSPECTION amp GENERAL MAINTENANCE Periodic inspection and general maintenance is recommended to insure proper operation This should include but is not limited to the following remove rust and flaking paint amp repaint clean face of sensor s replace or recharge desiccant as needed check battery lubricate key holes check cabinet alignment lubricate hinges wash outside of enclosure 7 2 GAMMA MAINTENANCE Once initial installation has been completed little maintenance is required 7 2 1 Periodic Inspection Periodic inspection is recommended to insure proper functioning This should include but is not limited to the following visual inspection for loose wires etc run a variance test check electronic alignment perform drive through tests A Performance Verification Checklist is included at the end of this section It is recommended that a copy of this be filled out whenever the system is put into service after tuning and alignment 7 2 2 Field Electronic Alignment Procedures HIGH VOLTAGE be This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 66 Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 2 2 1 Tools and Equipment Since the electronic al
41. ate the display more often every second instead of every five seconds and begins testing for alarm conditions every 200 milliseconds The controller also anticipates an occupancy by storing the number of 200 millisecond intervals in NVRAM The system may be forced into the fast count mode by pressing the asterisk lt gt key on the keypad e Pressing the pound lt gt key returns the system to background mode e Closing all the doors will clear a tamper condition giving the system a state change and will also return the system to background mode Upon entering the fast count mode the unit waits for the current interval to go to completion 200 milliseconds maximum discards the oldest interval adds the latest one tests for alarm conditions and begins another 200 millisecond collection interval This cycle continues during manual FAST COUNT or during an occupancy and the occupancy hold in period which starts when the unit drops out of occupancy If an alarm condition occurs the system will hold the alarm on for 7 seconds The radiation alarm level is calculated on the basis of variation from the background The formula for N Sigma may be found in Appendix A Section 10 0 CAUTION Do not leave the system in this forced state for normal operation 5 3 4 Variance Analyzer Mode Gamma Only In this mode the unit takes seventy five 200 milli second background counts and performs a variance calculation on the data A mor
42. be halted The problem must be corrected before operation can commence After all the tests are completed successfully the system will collect an initial BACKGROUND Mode The initial background acquisition takes twenty two seconds After the initial background has been gathered the system status will be displayed The status screen consists of four lines GAMMA BKG nnnnnn background counts in cps NEUTRON BKG nnnnnn background counts in cps SYSTEM STATUS OK TAMPER or OCCUPIED DATE TIME mm dd yy hh mm SYSTEM STATUS When a pillar door is opened the status line will indicate TAMPER When ac power is lost the status line will indicate TAMPER When an occupancy 1s sensed the status line will indicate OCCUPIED In addition to the above mentioned TAMPER conditions there are three other fault conditions that can occur during operation Gamma HI Gamma LO and Neutron HI The system is now ready for programming and set up This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 14 I l t Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 3 0 SET UP AND PROGRAMMING 3 1 SET UP The monitor is fully aligned at the factory Since these adjustments may be affected during shipment the alignment should be verified using the Electronic Alignment Procedure in Sections 7 2 2 amp 7 3 1 The SC 770 is a general purpose cont
43. ber Slave lower and Fourth number Slave upper Master Lower and Upper level discriminators voltages Relay Output 0 OFF 1 ON 3 AUTO Algorithm 1 0 1 0 SUM amp VERTICAL ON Position Definition First number SUM Second number HORIZONTAL Third number VERTICAL and Fourth number SINGLE P Place holder Output SG3 0 069 0 455 20 0 000 1 08 8 CRLF Definition Setup Gamma 3 Slave Lower level discriminator Slave Upper Level discriminator Background Time Background Nsigma Software Version Master Lower and Upper level discriminators voltages Background time in seconds Background Nsigma is a float used for throw through Should be 0 00 Software Version This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 9 Ii u Systems Ltd t VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A Output SN1 000050 2 0047 1200 04 PPP CRLF Definition Setup N eutron 1 High neutron fault alarm Maximum Intervals Alpha value Zmax value Sequential intervals Background High fault alarm units are in counts per second per neutron detector block Maximum Intervals used in the SPRT algorithm Alpha false alarm probability used in SPRT Zmax the value used for an alarm when max intervals is reached Sequential Intervals in the amount of 200 millisecond intervals that must be above background a filter used
44. cccecccssseeeecccceeeeeuesseeecccceeesaaaeseeeecceeessuaaeeeeeceeeeeqaas 67 Pct ORE T TO WIN AS EE oe TENA genset caress saa canada canee susan A E E E AS 67 7 2 2 3 Aligning The HHV 448 1 Stage Gain cccccccceccssescescscscescscessecsscscsceevscesseesseeeas 70 7 2 2 4 Aligning The SCA 774 2 Stage Gain See Drawing 20 v cceccsccsssessssestssesseteseeeee 72 Test ORE TTD ON SE TAL decree sree essence soesteaunensencc E ET E S 73 TZ Leena lifer A MAET MONE enr E E E A oe eee eee eee 73 7 2 4 OPON TE a A A E A 73 ia Performance Verification Checklist Gamma ccccccccccccsssssssssssseeeeeeeeeeecceeeeeeeeeeeaaaaas 74 eo NEUTRON MAINTENANCE ac cige dca veeneancin aon E 75 7 3 1 Electone Algun nit PrOCodUrG eeir n E E E 75 Tod Loon ad E A a E A A E E 75 Foda SCAT Master PINAN sensro a EEE 75 f d 3 Ahgoment The HHV 448 Geen ee en ee eee 76 7 3 1 4 Aligning The SCA 774 See Drawing 20 Component Designator 0000000000000000000n 76 od T CIEE 1D Clave P oa E E 76 TDZ Neutron Detector Tune Up Proced TE sweven i E 71 7 3 3 COCALO WC S ee E E E 78 7 3 4 Performance Verification Checklist Neutron eeeessssssssssseseeeeeeesessssssssssssssssreererereeees 78 o0 IKOLU TO TIN G eiris EEEE EE 79 8 1 COMPONENT ACCE rear aE E E E A E O E E ne E 79 o2 POVI RDIPIIRIBUTION oee E E EEEE E E EE 80 8 3 TNDIVIDUA L ASSEMBLIES oeerueirr eieren e e E i ET 81 8 3 1 Gamma Detector AN SSSI CS ca cen cstsaconcaxaataccinssnnatannaawacnueem
45. ceeaans se EA PAETA EEEE TONERNE E T 81 8 4 EAA CONTROLLER raen E eee Sener eee ne cee E een eee ee ereee 83 This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 4 Ii ios A Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 8 5 OPIN GY PEN SOR scores screens certs vies ote sect ess nets ven esas ope EN 83 10 GLOSSARY eani E AE E EE E E 84 TOG APTE NDI Aa a EEE O O O EOT AATE 85 11 0 APPENDIX B Data String Outputs amp Definitions 0 00c0cscrsssssssssssssssccccesees 88 TZ TAKIS LISTS n E E E E EEA 93 12 1 SPARE PARTS ORDERING INFORMATION oeeessesssesserssesssssssssssessesssesesesesessserseereeen 93 V2 RECOMMENDED SPARE PARR IS serenon a E 93 130 LISTOF DRAWINGS wucaaecercsssecstcssesssansecendezeecrsctssvanenssatsssseiviesexeestscovisannrivarenss 94 This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 5 Ii u Systems Ltd t VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 1 0 INTRODUCTION 1 1 SCOPE AND PURPOSE OF MANUAL This manual is designed to enable operating and service personnel to properly install test operate and care for the TSA Vehicle and Pedestrian Gamma Neutron monitors Since applications are necessarily site specific operation procedures are given in general terms Service and repair are covered to the board
46. clusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 30 Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 3 3 4 3 ALPHA VALUE Alpha value is a term used to express the false alarm rate and its value is used to select the alarm and background values used in the algorithm If this number is not entered exactly the selected rate will be the closest lower value Normally set at 47 Alpha Approximate false Z Alarm Value alarm rate Value 12785 1 78 433 9459 1 106 462 6924 1 144 492 5016 1 200 524 3596 1 278 555 2551 1 392 588 1791 1 558 621 1245 1 803 656 856 1 1168 690 583 1 1715 726 393 1 2545 762 262 1 3817 799 173 1 5780 836 113 1 8850 874 73 1 13699 912 47 1 21277 950 30 1 33333 989 19 1 52632 1028 11 1 90909 1075 7 1 142857 1112 4 1 250000 1160 3 3 4 4 ZMAX VALUE This is the alarm threshold that is used if the controller has counted to MAX intervals without an alarm decision Its range is from 0 1200 An alarm will occur if this value is less than the current Z value after MAX intervals The factory default setting is 1200 which effectively disables this feature This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 31 E d Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A mni ga
47. cument is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 82 Ii gp T7 a Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 8 4 SC 770 CONTROLLER Physically inspect the unit for harness wiring or connector problems This procedure does not cover the replacement of wires or connectors Such replacement should only be done by qualified service personnel Questions concerning parts or wire type and availability may be addressed to TSA Engineering staff In the master pillar the SCA signals are fed into the SC 770 controller where they are processed Ifan alarm condition is found the SC 770 activates the lights and audible alarm The SC 770 receives occupancy input from either the IR or ultrasonic sensors If a problem is suspected in the SC 770 unit replace it with a known good assembly either from spare parts or from another unit 8 5 OCCUPANCY SENSOR To check the occupancy sensor on the master pillar 1 turn the unit on 2 Connect a DVM to TS2 5 and TS2 9 and verify 5Vdc NO condition when un occupied and a 0Vdc NC condition when the pillar is occupied On the PM 700AGN only perform the same test in the other pillar This test assumes that the wires running from the occupancy detector to the terminal strip are good This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited
48. d check to make sure that all entries are valid after making changes The first menu presented to the operator offers three choices Those choices are Selecting the desired menu choice will present the operator with another menu allowing the operator to access the appropriate parameters and or functions GAMMA NEUTRON COMM SET Eee Bree gale This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 17 I l S E A Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A l SC 770 Display Menu Options Factory Settings 1 PARAMETERS 1 HI LO LEVELS 2 Bkg of 1 det LO 3 x Bkg of 1 det HI INTERVALS ensure scanning of entering object 3 OCCP HOLDIN 10 Vehicle Monitor VM250AGN ensure scanning 10 must enter leading zero DET ONLINE 234 2 FUNCTIONS SHOW COUNTS ll approx the same 2 DSCR ADJUST IESE SET CLOCK ili i hr min RELAY OUTPUT ON 2 Auto 3 O r a D O D s ct 5 Ta O 2 Q cr UI U D Q M V ert D 5 a G Q x j e 3 ADVANCED i um amp Vert ON for VM 250AGN um amp Horizontal for PM 700AGN BKG TIME 0 Use 1 amp 7 to adjust SHOW VERSION 08 8B Current Rabbit Firmware CLEAR G CNTS hows of occ s amp Alarms since powered up F ALARM TEST hows of alarm comp made amp of alarms BKG NSIGMA 0 throw through alarm SYSTEM
49. e detailed description of the variance test may be found in Appendix A Section 10 0 This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 49 Pi t Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 6 0 COMPONENTS 6 1 THE SC 770 The SC 770 module is installed in the master pillar It is made up of the following components Figure 6A 6 1 1 THE SC 771 The SC 771 board is the main data collection point and uses program software to run the unit and perform all functions The SC 771 receives battery voltage and uses a dc dc converter to supply the 5 Vdc required by its on board circuitry The SC 771 board uses highly integrated components If a failure occurs in this board it must be replaced Figure 6BF This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 50 I l t Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 6 1 2 Rabbit Board Program firmware is stored and executed by the rabbit The Rabbit Board is responsible for sending data string messages through the RS 232 and RJ 485 ports It also sends the signals for lights and alarms to turn on or off This includes the power up sequence lights and alarms The rabbit board is secured to the SC 771 board by a single screw in the middle of the board This screw must be removed t
50. ed 87 Ii H E a Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 11 0 APPENDIX B Data String Outputs amp Definitions ap Version SC 770 1 08 8 RS 232 and Ethernet TCP Output Documentation RS 232 and TCP Ethernet output messages are the same except for scanning or alarms The output string consists of two characters followed by four detector counts that are comma delimited The string is ASCII characters with a carriage return line feed CRLF at the end For Gamma the first two detectors are in the master pillar and the second two are in the slave pillar Detector 1 is master lower Detector 2 is master upper Detector 3 is slave lower and Detector 4 is slave upper For Neutron the first two detectors are in the master pillar and the second two are in the slave pillar The neutron detectors are numbered 5 8 Detector 5 is master upper Detector 6 is master lower Detector 7 is slave upper and Detector 8 is slave lower Reference Section 3 3 1 5 VM 250AGN Detector Arrangement for detector locations The RS 232 port settings are as follows Baud rate set at 19 200 bps Data bits set at 8 Parity set at 0 Stop bits set at 1 Flow control set at None The PC Ethernet or HyperTerminal port settings are as follows Host address should be set to the exact IP address entered in the SC 770 the Port number must be set at 1600 and Connect using is set to TCP Winsock
51. ees 7 SC 771 Schematic Diagram Sheet 3 Of 4 ccccssssssssssscscccccscccsscsscssscees 8 SC 771 Schematic Diagram sheet 4 Of 4 ccccccssssssssssssssssccesccccsccssceeees 9 SC 771 Circuit Board Component Desigmatr cccccsssscscccccssees 10 GPRB 756 Schematic Diagram soo sanccsce cscs cecacesansezsccccacsscscecscsassccntessecdceesssies 11 GPRB 756 Component Designat Or ccccccccscssscsssssccsscssscccccssccsscssees 12 DC Aa 77D BU ral VION si csnseccesseconcancsessscosvcoressachsecessstvavessecseeentcccssceansseseate 13 BC Ae 75 VV IMIS DOTA OE A ocses seus ecu scesssnccasassvscacceoecesncesseevassapsssesssensosessstosss 14 DG F717 Terna VNC WW eecetacesscocsascesveeecuscesucenscosasccssccskesfecesssscateatcescesncsscoses 15 SCA 774 Schematic Diagram Sheet 1 Of 4 sscccssscscccsccccccssssccscosees 16 SCA 774 Schematic Diagram Sheet 2 Of 4 ccccccsssssssssssccccccssssscscosees 17 SCA 774 Schematic Diagram Sheet 3 Of 4 cccccccsssssssssscccccsssscccsosees 18 SCA 774 Schematic Diagram sheet 4 Of 4 ccsccssssssscecccccccssssccscosees 19 SCA 774 Component DesigmatOr cccssscsssssccccsssssscssccccccsssssssscccseees 20 HHV 448 Schematic Diagram cccccccssssssssssssssscscscccccssccsssssssssesesees 21 HHV 448 Component Designator cccccccsssssssccsccscccccssccsscesccscceccece 22 PMFX 4 Quad Signal Pickoff Board Schematic Diagram
52. efore or after removal Upper Detector Assembl Figure 6M Figure 60 Figure 6N Lower Detector Assembly This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 55 io A Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 6 4 THE NEUTRON DETECTOR ASSEMBLY The neutron detector assembly consists of two He detectors mounted in a high density polyethylene chamber The Pedestrian monitor has one chamber in each pillar the vehicle monitor has two chambers per pillar al a a5 Figure 6 a 2 Figure 6Q This document ts the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 56 I l t Systems Ltd VM 250AGN amp PM 700AGN Manual 6 4 1 PMFX Box The high voltage signal pick off box sums two neutron tubes per output There are no serviceable parts inside the PMFX Box Doc 5000 Rev A High Voltage TO 7 j 1 oo E anell i Figure 6R nE Detectors 6 5 THE BATTERY MODULE The Battery consists of a 26 amp hr 12 volt sealed lead acid battery and a constant voltage charger KJ Figure 6T This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 57 m I l Te 7 a Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A
53. enu at the top of the screen next select Software this should bring up a list of downloadable software options Click on SC 770ComSetUp which is under the Communications Software heading Save the file to the desired location on the hard drive After the file has been saved go to the location of the saved file and click on the SC770 setup file The program will walk you through the rest of the installation 4 2 SETTING THE PORT NUMBER Selects the port that is to be used to communicate with the PM VM TM system The value is immediately changed and stored in the configuration file If the selected port is not available a warning message will be displayed When the correct COM port is selected the 23 4 receive box will flash green every 5 seconds if in the Gamma or Neutron Show Count tab indicating the COM program 1s receiving data form the SC 770 controller Setup COM PORT and Unit ID Fort Gamma Parameter Gamma Alarm Data amma Show tl Set Communications Port COM C COMe2 COM C COM4 Gamma eutron Unit Number i Figure 4A This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 37 I l Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 4 3 GAMMA PARAMETERS Permits the operator to view the gamma parameters The parameters cannot be changed from the PC SC 7 70 Gamma Parameters Fort Gamma Parameter Gamma Alarm
54. eshold Bkg N sigma Sigma V400 20 So if your alarm set point is 4 sigma Thresh 400 4 20 480 The monitor will alarm at 480cps Four sigma will include 90 of all counts on a Gaussian distribution and will result in a measured false alarm rate of approximately 1 1200 and a theoretical false alarm rate of approx 1 33000 Six sigma will give you 1 10 theoretical false alarm rate This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 21 I l u Systems Ltd t VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 3 3 1 5 DET ONLINE Indicates the detectors in the system which are enabled The SC 770 will support up to eight detector inputs If less than four detectors are installed in a system the unused inputs must be disabled to allow proper system operation The DET ONLINE will normally display 1234 To disable an individual detector type a zero in its position For example typing 1034 would disable detector number 2 the detectors on line would display 1_ 34 To enable all four detector inputs the normal setting for a system enter 1234 the detectors on line will display 1234 To enable a Master only system the detector setup should be 12 VM 250AGN Detector Arrangement LCD Display From the show counts screen NEUTRON DET 45 DET 6 DET 7 DET 8 Master slave T
55. etector 7 Move the oscilloscope probe to TP2 If the peak pulse amplitude is 20 75 volts the high voltage alignment is complete If the peak pulse amplitude 1s lt 0 75 volts adjust R1 to achieve a peak pulse amplitude of 0 75 0 05 volts 8 Use the high voltage probe to verify that the high voltage is lt 1 500Vdc and is stable 5Vdc If the High Voltage is not stable replace the HV board if the HV is not less than 1 500 Vdc see Section 7 2 2 3 for the 1 alignment process This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 71 fill i ly cS a gs Systems L VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A Figure 7F Figure 7G The HV probe Ensure the GND tab on the HV ground clamp should probe connecter is connected in the be connected to the COM hole on the multi meter HV MHV connecter at the SCA 775 box 7 2 2 4 Aligning The SCA 774 2 Stage Gain See Drawing 20 1 Place the source on the yellow alignment dot on the lower detector 2 Attach the probe to TPS and probe ground to TP14 ground 3 Set the vertical deflection to 1 volt division horizontal sweep speed to 0 5 psec division and positive edge triggering 1V div and 1usec for digital oscilloscopes The signal seen should resemble signals shown on the following page Set the trigger level 320mv and adjust intensity on the oscilloscope for the best display
56. ext selection The available selections are SUM Performs an alarm comparison on the sum of all detectors in the system usually four this results in 1 alarm comparison per occupied interval HORIZontal Performs an alarm comparison on the sum of the two top detectors and the sum of the two bottom detectors this results in 2 alarm comparisons per occupied interval VERTical Performs an alarm comparison on the sum of the upper and the lower detectors in each pillar this results in 2 alarm comparisons per occupied interval SINGLE Performs alarm comparisons on each detector individually this results in either 2 or 4 alarm comparisons per occupied interval depending on the number of detectors The standard Algorithm configuration for pedestrian monitors is with SUM and HORIZONTAL calculations enabled This set up will result in 3 alarm comparisons per interval 3 comparisons each 200mSec x 2 sec 30 alarm comparisons for a 2 second occupancy The standard Algorithm configuration for Train and Vehicle monitors is with SUM and VERTICAL calculations enabled Again this set up will result in 3 alarm comparisons per interval 3 comparisons each 200mSec x 3 sec 45 alarm comparisons for a 3 second occupancy This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited Ze 7 u Systems Ltd Pi f VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A T
57. for routine operation The system will automatically go to this mode after the initial self test series The display counts down to 0 during the first background collection period During this initial countdown no other functions are available and OCCUPANCIES and TAMPER conditions are ignored The unit then continuously takes 5 second background counts and adds the most recent set together to display the current average background count After the initial countdown system status 1s displayed and the system starts monitoring for occupancy The gamma and neutron background on the display will update every five seconds to show the current background being used for alarm calculations While collecting background counts the SC 770 compares the latest count with the HI LO LEVEL background alarm settings once a second If the background counts are outside these limits the unit will display DET X LO HI NNNNN where X is the detector number and NNNNN is the current background for that detector It will also light the amber fault light on the master pillar and the appropriate alarm lamp on a remote alarm console if one is included in the system This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 48 I l u Systems Ltd t VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 5 3 3 Fast Count Mode While this mode does not take counts any faster it does upd
58. g Examine the exterior of the cabinets for physical damage faulty wiring loose connections etc Open the cabinets and do the same inside checking all wiring carefully If the physical inspection shows no obvious cause for the problem proceed by checking the detectors controllers and other individual assemblies as outlined in the following steps After repairs have been made a field alignment must be performed See Section 7 for alignment procedures 8 1 COMPONENT ACCESS Before attempting to replace or remove any of the items listed below make sure that the system power is in the off position at the LD260 and the ac breaker which may or may not be located inside the pillar Battery To remove the battery disconnect the in line connector between the LD 260 and the battery remove the bracket if one is installed and lift out To reinstall the battery reverse the previous steps Load Disconnect The load disconnect may be removed by disconnecting the three wiring connectors and removing the two mounting screws To reinstall the load disconnect reverse the previous steps NOTE Be careful to reinstall the connectors properly as to avoid damaging the LD260 at power up Battery Charger The battery charger is mounted to the back plate next to the battery in the PM 700AGN and below the LD 260 in the VM 250AGN reference Section 6 9 NOTE Disconnect the ac power to the system before proceeding Disconnect the cable from the LD 26
59. he Algorithm configuration has a direct impact on the false alarm rate The standard configurations listed above will produce a false alarm rate of 1 1000 occupancies If the configuration is changed to enable the single option 4 additional alarm comparisons are made per 200mSec interval one for each detector While this will increase the sensitivity of the system the false alarm rate will increase to 1 500 occupancies 3 3 3 2 BKG TIME Sets the background counting time for the system Press lt 1 gt to increment the time by 5 seconds press lt 7 gt to decrement the time by 5 seconds and press lt gt to accept the setting Range is from 20 120 seconds NOTE Changing this setting will cause the system to power cycle and collect a new background If you are in an area with large background fluctuations you can increase the BKG Time to help average out those background spikes over a longer period of time 1 minute 3 3 3 3 SHOW VERSION Displays the firmware version currently installed 3 3 3 4 CLEAR G CNTS The SC 770 counts the number of occupancies and alarms since the system was turned on or since midnight NOTE Counts are cleared at midnight every night These numbers are displayed here The counter may be cleared by pressing lt 1 gt pressing any other key exits this mode without clearing the counters Each time the system is power cycled these numbers will be cleared from memory This document is
60. hibited 3 E a re im i Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 6 1 3 Tie GPRD csp ects occa e cet cen asec ee eens ccee ne eee eee cs 51 2 A 8 cl oie CA is ene renee ee ene eee rene eee eee eer EE 52 6 2 1 TESCA hera EAA A EAEE EERE 53 6 2 2 AVG TA EO E E EE E E cease 54 6 3 THE DA 630 DETECTOR ASSEMBLY GAMMA 0 cccccccccccscseeeeceeeeeeeeeceeeceeeeeeeeeeeeeeess 55 64 THE NEUTRON DETECTOR ASSEMBLE Y issiria a ai 56 6 4 1 PNTA BO ae a E E E ee 57 6 5 THE 972 Wd Bt cp i007 BT cere neen re EEEE RRES 57 00 NANO CONTROLLER croen nnn ETT E 58 O RS ERSA C CONVERTER BOX osoren tee ene ern ee eee eee eee ree eer ee eee 58 6 8 MEDIA 14 ci 5 Bl 2 eee eee ee nee eee ee re ere 59 69 ELI 260 LOADDISCONNEC rererere 60 olo OCCUPANCY DETECTOR cc ee ener mn nner A E E EE eee eee 61 OADE I ON e ene eee eee ee oe rene he rer nr ne reer eee EA nc rere ete 61 CO TUR A seers rere E E EE eae enna ce T E AE ee anon 63 610 3 IR Photo B am Speed Sense een ee nee Aa 64 6 11 ALARM LIGHTS AND AUDIBLE ENUNCIATOR i ccccccccccecceeeeeeeeeeeeeeeeeeeeeeeeeees 65 THE MANIL NAN Eo EEE E A E TEE E 66 Tol PERIODIC INSPECTION amp GENERAL MAINTENANCE cc cceecccccccceceeccceeeeeeeeeeeeeaeees 66 Me AMNA MAINTENANCE ae ne ee ee ee ae ee a ae 66 Teal Pero Pe E T A 66 120 Field Electronic Alignment PLrOCEQUIES ase ionsx6 acesinesavearsssncavesnssaents a EAEE NEEE 66 7 2 2 1 Tools and Equipment 20 0 0 ccccccccccc
61. his document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited ZZ f u Systems Ltd Ii VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 3 3 2 GAMMA FUNCTIONS SHOW COUNT Displays detector counts DSCR ADJUST Discriminator adjustment VARIANCE Performs a variance test on the detectors SET CLOCK Sets system time and date RELAY OUTPUT Determines functionality of output relay amp local alarms Wn B WD NO Re 3 3 2 1 SHOW COUNT Displays each detector s counts in cps updated once per second NOTE All alarms are disabled in the Show Count mode Show Count mode will display detector count rates on all operable detectors including those that are disabled in DET ONLINE Press the pound lt gt key to exit the Show Count mode 3 3 2 2 DSCR ADJUST Opens the menu to display and or adjust the LLD and ULD set points The discriminators set the energy levels at which the system will be accept counts The energy window may be changed using the discriminators The relationship of the discriminator voltage to energy level in keV 1s approximately 1 volt of discriminator level equals 330 keV Using this formula the factory settings equal LLD 0 069 volts 22 keV ULD 0 455 volts 144 keV This relationship is an approximation In practice the actual values will vary slightly Always test the system with the isotope s of interest to e
62. horized use or distribution is strictly prohibited 86 a Pi gp Em Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A VARIANCE The variance analyzer mode is used to check whether the counts seen by the controller are actually from the proper distribution If the distribution approaches normal the resulting number will approach 0 Any significant deviation from the normal distribution will result in a larger number The two most common problems resulting in variance failure are light leaks in the detectors and periodic noise in the electronics Periodic noise will result in a number of about 1 a light leak will usually result in a number larger than 2 The number displayed during a variance test is the absolute value of the average of a number of these tests with one test being performed every nn seconds The data is valid after three iterations of nn seconds The pass fail criterion varies from unit to unit and is included in the variance section of the manual on most units N 2 2 c H 1 p 5S2 C Where C counts per sample time C mean counts I number of iterations N number of samples taken R sample variance modified to equal 0 rather than 1 for Gaussian distribution R mean variance this term is referred to as variance in TSA s manuals S2 sample variance This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibit
63. ignment procedure requires specialized tools and knowledge only qualified technical personnel should perform these adjustments and measurements The following tools will be needed for this procedure DVM with a resolution of 0 1 millivolts 0001 volts High voltage probe with a range of 10 000 Vdc and Zin 100 MQ Oscilloscope with greater than 20 MHz bandwidth 5 to 10uCi of Cs Cesium NOTE Other mono energetic sources may be used Call TSA for full details 7 2 2 2 SCA 775 Master Pillar All of the alignment adjustments are located in the SCA 775 enclosure To gain access for the alignment release the latches on the pillar door and swing the door open The SCA 775 is located in the center of the pillar Loosen the four captive thumb screws located on the lid Gently pull the lid away from the bottom of the enclosure and swing the lid down to expose the electronics NOTE Be careful not to force the lid open and break the hinge The top board is the SCA 774 board This board contains the amplifiers and SCA electronics The base contains two HHV 448 boards refer to Drawing 15 and figures 7D amp 7E in Section7 2 2 3 to identify the boards One of the HHV 448 boards provides high voltage to the gamma detectors the other provides high voltage to the neutron tubes 7 2 2 2 Low Voltage Checks This step verifies that the low voltage circuitry is operating properly before performing the actual alignment Using the DVM verify that the fol
64. interval Occupancy sensed 1 one second rolling sum alarm comparison look back a 2 one second rolling sum alarm comparison k 3 one second rolling sum alarm comparison This is displayed in cps if of intervals 5 The sum of these counts is compared to an alarm level which is normalized to that number of intervals This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 45 I l ap ios a Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 5 2 NEUTRON OVERVIEW The portal monitor makes its decisions for neutron radiation alarms in the following manner A level for Alpha is selected using the keypad Whenever the occupancy detector senses that a the monitor is occupied the monitor enters FAST COUNT mode and starts making alarm comparisons based on the parameters that have been stored in the controller s NVRAM When unoccupied the portal monitor constantly updates the background count to reflect changes in the environment The background is updated in 5 second increments with the current background reading equal to the one second rolling average of the last four 5 second intervals This updates the background completely every selected background time 20 120 seconds When the unit is occupied it ignores the current 5 second background interval and goes into FAST COUNT mode While the monitor is occupied
65. it makes an alarm comparison every second using this one second count it calculates a value Z that is compared to stored background and alarm values It is important to note that the occupied neutron count rate data IS NOT a rolling sum Three decisions can be reached from the Z value l Background Z is set to zero and it gets another one second count 2 No decision Z is stored the next one second count is entered into the formula a new Z value is calculated and this value is compared to Background and Alarm values 3 Alarm Stops comparisons and sets alarm relay The monitor is set to start monitoring the passage 1 second before the monitor has been occupied This is called look back The monitor will continue to make comparisons until the occupancy hold in time has expired after the end of the occupancy This is called look after The occupancy hold in forces the unit to continue to make alarm comparisons after the occupancy detector has cleared look after The amount of time selected for this parameter is based on the estimated speed of passage and pillar spacing This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 46 Pi 4 Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A t Systems Neutron Background 5 second background interval 1 20 second rolling average Bkg estimation 2 20 second
66. itor constantly updates the background count to reflect changes in the environment The background is updated in 5 second increments with the current background reading equal to the one second average of the background time This updates the background completely every selected background time 20 120 seconds When the unit is occupied it ignores the current 5 second background interval and goes into FAST COUNT mode The monitor collects its counts in 200 millisecond intervals For example if the number of intervals is set to 5 the alarm comparison will be based on 1 0 second rolling sum data sets 5 x 200mSec This sum of counts is then compared to an alarm level which is normalized to that number of intervals The number of intervals should be selected based on an average monitoring time The normal speed for vehicles passing through the monitor is 5 mph 8 kph The summed counts of the chosen number of intervals should reflect the time a given point on a vehicle will be in the detection zone resulting in the maximum probability of detecting an alarm condition The normal passage time for a pedestrian is approximately 2 seconds While the monitor is occupied it makes an alarm comparison every 200 milliseconds based on a rolling sum of the most recent n x 200 millisecond intervals normalized to the number of intervals to output in cps Actually the monitor makes several alarm comparisons every 200 milli seconds depending on the A
67. k ee el pis 16 Count a ee ee A S AA a ae Dee i 18 18 Couta Write viot AAA LEH pL naan mauuuatan o 20 20 Empty ey o eh C21 ader Empty O O O 522 Battery Red amp White Red 23 23 Media Conv Red lt Once pillar interconnections are complete install the battery l Check that the Power switch on the LD 260 is in the OFF position 2 Using a Volt Meter check for a short between power and ground 3 Install the battery in the master pillar by connecting the battery cable to the in line connector from the LD 260 All of the other cables are factory installed This completes the internal wiring of the monitor With the main circuit breaker see figure 2B and 2C switched to the ON position the yellow AC light on the LD 260 should be lit When the LD 260 power toggle is switched to the ON position both the yellow and the green LEDs will be illuminated and the system is energized This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 13 THA om Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 2 6 START UP AND SELF TEST 1 Turn on the power switch located on the Load Disconnect LD 260 The unit will automatically perform a Power On Self Test POST which takes approximately seven seconds 2 The test results are displayed on the screen as they are run If any tests fail the system will
68. lgorithm set up See Section 3 3 3 1 The intervals are stored continuously so that as soon as the monitor is occupied it waits for the current interval to end then sums the counts in the selected number of intervals and makes an alarm comparison This means that if the monitor is set to five intervals it is effectively starting to monitor the passage 1 second before the monitor has been occupied This is called look back The monitor will continue to make comparisons until the occupancy hold in time has expired after the end of the occupancy This is called look after The occupancy hold in forces the unit to continue to make alarm comparisons after the occupancy detector has cleared look after The amount of time selected for this parameter is based on the estimated speed of passage and pillar spacing This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 44 Systems L I l l A 4 td VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A Gamma Background 5 second background 1 20 second rolling average Bkg estimation in cps 2 20 second rolling average Bkg 3 20 second verage Bkg When the monitor is occupied the system will Used for ignore the current 5 second background interval N Siama and calculate the alarm threshold based on the Saeaon previous completed interval Gamma Occupancy 200 mSec
69. ll wiring should be done in compliance with local electrical codes VM 250AGN _ PM 700AGN Figure 2B Figure 2A Figure 2C ka mi l gt Main Circuit Breaker mdi pang gt The amber LED will be lit when ac power is applied to the battery charger The green LED will illuminate as indicated in figure 2A when the switch on the LD 260 is turned to ON This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 12 Ii T7 a Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 2 5 PILLAR TO PILLAR INTERCONNECTIONS The PM 700AGN uses an interconnecting cable with a 19 pin circular connector on each end which is used to provide signal connections between the master and slave pillars A separate two conductor cable brings power from the master to the slave pillar The VM 250AGN uses a 25 pin terminal block in each pillar Master Slave r m2 coor 1 1 fOccupancy Green Cd 2 2 Tamper Pink ___ 3 3 SC Browns 4 4 D Grey S 5 5 CSO White _ 6 6 Counti Orange 7 7 Count2 Yellow 8 8 Count3 Blue Two Pin Jumper o 9 Count4 viot 10 10 Occupancy White Green m 11 Tamper Whnite Pnk a2 12 Sc _ White Brown as 13 DI White Grey CEECEE a4 14 cso White Blac
70. lowing dc voltages are present before performing an alignment All readings are referenced to ground there are numerous ground test points on the board Always connect the ground lead first TP14 17 are convenient grounds use a micro clip lead and leave it connected while performing all low voltage checks Test Point Voltage Description TP31 12 6 volts or gt Switched battery TP33 5 0 2 volts VCC TP9 3 to 5 volts negative voltage TP30 5 0 005 volts discriminator reference voltage TP10 Gamma LLD setting 0 012 volts normally 0 069 Vdc If TP10 or TP18 are not set TP18 Gamma ULD setting 0 012volts normally 0 455 Vdc properly refer to Section TP34 3 3 volt Reference 0 3 volts 3 3 2 2 to adjust values Do not proceed with the alignment until these voltages are within tolerance This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 67 Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A TP14 17 can be used as amp _ Aan T ground for all electronic i i oo rr alignment steps mm i ee ae 1 Figure 7A Use press on clip lead adapters to make the job easier This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 68 t a Systems Ltd TP1 thru 4 LJ i Dil z I l VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 1 Stage
71. mage The physical installation of the pillars external wiring and communications equipment will be performed by a contractor and or TSA personnel Place the two pillars upright facing each other at the required spacing at the desired location The VM 250AGN should be securely anchored to a cement slab In extremely windy locations guy wires may be required The PM 700AGN has two overhead conduits These conduits are used to route the interface cables and also help to stabilize the pillars 2 4 ELECTRICAL INSTALLATION NOTE AC power signals and alarm outputs are run through a user supplied conduit This conduit must be watertight if the system is to be installed outdoors The conduits are typically installed under the roadway Once the pillars are in place the unit must be wired for ac power AC power alarms and communication outputs for remote monitoring if desired are brought into each pillar through user supplied conduits These conduits may be brought into the pillar at any convenient location normally near the bottom of the pillar but should not be placed in such a way as to interfere with the opening of the door This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 11 Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A Ii t Connect the 90 250 Vac line to the terminal block in the master pillar 90 250 Vac at 1 amp A
72. mper Fault Tamper or power fail condition This is sent only once when the following conditions occur ac power loss charger output failure or when any of the doors in the tamper circuit are opened Fields are padded for 32 bytes Output TC 111111 111111 111111 111111 CRLF Definition Tamper Cleared Tamper or power fail condition cleared This is sent only once when the following conditions occur ac power returned or when the doors are closed on the pillar Fields are padded for 32 bytes This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 89 T7 a Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A Output GX xxxxxx 000000 000000 000000 CRLF Definition Occupancy Cleared Pillar occupancies since midnight of each day xxxxxx 1 99 999 occupancies This message is sent with an incremented count every time the pillar clears the occupancy This variable is automatically cleared after a power cycle and or at midnight every night Fields are padded for 32 bytes Output SP 0 1234 04 234 006 23 000000 CRLF Definition Speed Sense The first field is the time the object takes to travel 12 inches the second field is MPH 99 999 max and the third field is KPH 999 99 max Fields are padded for 32 bytes NOTE Ethernet and Serial Port data will not be sent if the profiling parameter is turned OFF This document is the excl
73. must be run in a user supplied conduit If the system is equipped with heaters ac power must be supplied to the heaters in both pillars The ac power and interface signals may be run in the same conduit unless this is prohibited by local code E PM 700AGN VM 250AGN This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited l a I l ap om Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 1 3 SPECIFICATIONS Gamma Detectors Two 6 w x 30 1 x 1 5 d 15 x 76 x 3 8 cm organic plastic scintillators in each pillar Neutron Detectors PM 700AGN Two 2 x 36 1 5 x 91 cm 2ATM He detectors in each pillar VM 250AGN Four 2 x 36 1 5 x 91 cm 2ATM He detectors in each pillar Sensitivity Please contact TSA for details Power 12 volt 26 amp hour sealed lead acid battery charged by 90 250 Vac 47 63 Hz line power Passage Time VM 250AGN 3 seconds at 5mph 8kph PM 700AGN 2 seconds at a normal walking pace Serviceability Portal All components are easily accessible for testing and maintenance Portal Monitor Controller Self checking routines and easily performed tests simplify board level trouble shooting The modular design allows quick and easy repair and maintenance Occupancy Detectors VM 250AGN One programmable ultrasonic sensor and one set of infra red photo beams speed sensors PM 700AGN Two pa
74. n The toggle switch is used to manually turn the system power on and off While turned on the load disconnect monitors the battery voltage level If the battery voltage drops below 10 5 Vdc after ac power is lost the load disconnect will turn the system power off When as power returns the battery will recharge through the LD 260 as power is automatically reconnected to the system TFET LILIS Figure 67 Figure 6Y ia i en VM 250 Battery Charger This document ts the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 60 Ii ios a Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 6 10 OCCUPANCY DETECTORS TSA Systems employs three different types of occupancy detectors depending on the application environment and local conduct of operations Each type of sensor has strengths and weaknesses The three types are Ultrasonic IR Curtain IR Photo Beam 6 10 1 Ultrasonic Ultrasonic occupancy detectors are used mainly in vehicle and train portal monitoring systems The sensor emits a short ultrasonic frequency pulse shuts down and monitors for a return signal bouncing back off of an object NOTE Small and or rounded objects do not reflect the ultrasonic pulses particularly well Figure 6AA Figure 6AB e Dead Zone There is a dead zone which extends out approximately 18 inches from the sensor The sensors electro
75. nics are not fast enough to send out a pulse shut down then detect a return signal if the object is within 18 inches of the sensor e Ifa vehicle passes too close to an ultrasonic it s possible for it not to be seen If a vehicle parks to close to or in the middle of a monitor it can depress the background counts and when the vehicle leaves the background can spike and possibly cause a false alarm e Ifa vehicle parks between the pillars holding occupancy this will significantly increase the possibility of for a false alarm This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 6l se im ee Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A Back of SENIX 1 Holding the button for 3 a re ere seconds led then flashes lt _ 1 Output Green LED unlocks the sensor for Ge TEACH Button adjustment Release button Target Indicator 2 To set factory defaults Hold button in count 17 flashes of LED and release 3 Hold button in for 3 flashes to re lock sensor and release NOTE Sound travels better in water so sensor may see other pillar during a heavy rain Curved objects may not provide enough signals to be sensed To set the distance complete the following steps Step 1 Step 2 Step 3 Step 4 Step 5 Step 6 Remove the Senix from the door with the system power on set up a target like a large piece
76. nment unchanged new values PARAMETERS High Level alarm set to Max Intervals set to Alpha Value set to Zmax Value set to Sequential Test set to FUNCTIONS Master Pillar SCA 774 HHV 448 LLD volts ULD volts Slave Pillar SCA 774 HHV 448 LLD volts ULD volts Neutron Enable Electronic Alignment ____ System starts up and runs initial self test without errors ____ All modes operational Background mode in operation area total counts Drive through test list sources and sizes used Performed by Date NOTE Most of this data should have been collected on the form provided in Section 3 4 This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 78 a I l ap om Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 8 0 TROUBLESHOOTING This guide is designed so that on site personnel can service the system and effect necessary minor repairs It covers procedures and parts down to the board level Any other problems should be referred to factory authorized service personnel Unauthorized repair voids warranty When a problem occurs it is important to isolate the cause as much as possible This is accomplished by a step by step procedure which checks each of the assemblies for proper function and works upwards through the system Begin with a physical inspection of the unit and then check the power supply and cablin
77. not in an alarm state The RS 232 output displays in CPS averaged from five 200mSec counts in the rolling count buffer The counts are one second averaged from five 200mSec rolling count buffer Output GA xxxXxx XxXXXX XXXXX XXXXX CRLF Definition Gamma Alarm Gamma counts sent every 200mSec while occupied and in an alarm state The counts are one second averaged from five 200mSec rolling count buffer The threshold is a settable parameter in the controller Ethernet OUTPUT Output GS xxxxx xXxxXx XXXXX XXXXX CRLF Definition Gamma Scan Gamma counts are sent every 200mSec while occupied and not in an alarm state The counts are 200mSec based NOTE When an occupancy occurs five 200mSec pre occupancy count strings are sent out immediately Output GA xxxXxx XxXXXX XXXXX XXXXX CRLF Definition Gamma Alarm Gamma counts are sent every 200mSec while occupied and in an alarm state The counts are 200mSec based The threshold is a settable parameter in the controller Output NS xxxxx Xxxxx XXXXX XXXXX CRLF Definition Neutron Scan Neutron counts are sent every second while occupied and not in an alarm state The counts are one second from five 200mSec count buffer Output NA xxxxx xxxXXx XXXXX XXXXX CRLF Definition Neutron Alarm Neutron counts are sent every second while occupied and in an alarm state The counts are one second from five 200mSec count buffer Output TT 000000 000000 000000 000000 CRLF Definition Ta
78. nstruments 7 3 1 1 Tools and Equipment The following tools are needed for this procedure DVM with a resolution of 0 1 millivolts 0001 volts High voltage probe with a range of 10 000 Vdc and Zin 2100 MQ 7 3 1 2 SCA 775 Master Pillar All of the alignment adjustments are located in the SCA 775 enclosure To gain access for the alignment release the latches on the pillar door and swing the door open The SCA 775 is located in the center of the pillar Loosen the four captive thumb screws located on the lid Gently pull the lid away from the bottom of the enclosure and swing the lid down to expose the electronics NOTE Be careful not to force the lid open and break the hinge The top board is the SCA 774 board This board contains the amplifiers and SCA electronics The base contains two HHV 448 boards refer to Drawing 15 to identify the boards One of the HHV 448 boards provides high voltage to the gamma detectors the other provides high voltage to the neutron tubes This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 75 Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 7 3 1 2 a Low Voltage Checks This step verifies that the low voltage circuitry is operating properly before performing the actual alignment Using the DVM verify that the following dc voltages are present before performing an alignment All readings are referenced to gr
79. nsure maximum sensitivity Refer to the formula for signal to background ratio in Appendix_A Section 10 0 for details on optimizing the discriminator settings for specific isotopes If SNM is the primary concern leaving the discriminators set at the factory defaults of 0 069 and 0 455 volts is recommended If the isotopes are unknown setting the ULD to its maximum setting 5 040 volts will improve the high energy response This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 23 I l f Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A The master and slave discriminators are set independently to permit maximum flexibility in programming the system In almost all cases the settings will be the same for both the master and slave pillar NOTE After changing the discriminator settings always run a variance test to ensure that system noise is not affecting the count data Three methods of adjustment are provided 1 Direct Entry Press the zero lt 0 gt key from the MASTER ULD LLD menu The operator will be prompted for a NEW LLD setting Enter the new value the first digit entered is volts the second digit entered is tenths of a volt etc and press the pound lt gt key or simply press the pound lt gt key to accept the current setting NOTE Since the DACs have limited resolution manual entries will be rounded to neares
80. nt download or skip this option If the operator chooses to view the history data file it will appear as the sample below Download SC 70 Historical Data Download Historical Data f All Records 174 C Selected Records Download M EXIT Figure 4F 1271172011 OF 218 121172011 0 245 1371172011 1 4 58 131172011 1 4 58 13411420117 1 17 45 131172011 21420 131172011 21420 131172011 314 20 1341142011 3 14 20 137 1172011 4 14 20 1371172011 4 14 20 1371172011 amp 1420 137 1172011 amp 1420 137 1172011 6 14 20 137 1172011 6 14 20 1371172011 7 14 20 131172011 71420 131172011 8 14 20 131172011 8 14 20 131172011 3 14 20 sl ae Power Up 0 UO 0 OU OQ H vg Ekg Pl a 22 GAyvgBkg 1717 400 422 442 453 Neu HF ault 4028 783 1090 1064 1091 N AvgBkg 30 6 9 7 amp GAyvgBkg r42 405 433 447 45 H vg Bkg Ooo Gee 2 GAyvgBkg 1740 406 4268 448 458 H vg Bkg Oo 2 oe Ao 2 G Avg Bkg 1729 403 425 446 455 H vg Bkg m oe ae G Avg Bkg 1724 402 4235 444 455 H vg Bkg oO 2 2 22 34 GAygBkg 1723 3958 418 450 45 H vg Bkg Oo 2 48 2 2 GAyvgBkg 1735 402 4271 453 459 H vg Bkg a 2o ia do ae GAvgBkg 1r44 404 424 455 461 H Avg Ekg Oe e Figure 4G This document ts the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 39 t gil I l Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 4 4 1 Downloading Portal
81. o remove the board from the SC 771 board To avoid bending the pins on the two 34 pin connectors on the bottom side rock the board back and forth while pulling it gently away from the SC 771 A i b ee sions a JeF a J ET j al e rat ak i n F r i m gl eres Ebest s ra ee i n r ei BEAN a wE ara A TTS i T TTT Pi a z i bee RE E d hsm E pT H m2 y 23 09 n ri am T er i ti B e H a g a i F Ti a Fe T ia i j E z d P n ep i rd Figure 6C 6 1 3 The GPRB 756 The General Purpose Relay Board GPRB 756 accepts the system status signals from the SC 771 and switches the appropriate relay contacts The second set of relay outputs are not used by the system but may be used by an AM 270 or interfaced to the customer s security systems NOTE f the RELAY OUTPUT is turned OFF under the GAMMA PARAMETERS menu option the local lights and audible alarms as well as these relay contacts will be disabled J38 JAE r he a hl ay ay cal a 5 1 Hii f Figure 6D C O mah mie h i a y 1 D d oe Figure 6E This document ts the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 51 u Pi ims i Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A
82. of cardboard at the desired detection distance no greater than 11 feet 3 20 meters or in applications where the spacing of the pillars is less than 14 feet face to face set the Senix at 3 feet less than the total opening While watching the Target Indicator LED located next to the TEACH button on the back of the Senix Press and hold the TEACH button for 3 red flashes then release Move the target to the desired distance point the Senix at the target then press and hold the button for 9 red flashes The maximum detection distance is now set Do not try to set the distance to greater than 10 5 feet 3 20 meters Test the set point by moving the Senix or target back and forth while pointed at each other The Target Indicator light will flash green when an object is sensed and will not illuminate when the detection zone 1s empty If the desired target value is achieved press and hold the TEACH button for 3 more red flashes to lock the Senix This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 62 io A Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 6 10 2 IR Curtain Pedestrian monitors use IR Curtain occupancy sensors to look for changes in temperature and motion which signals occupancy The IR sensor has a field of view of approximately 160 The curtains are actually six separate zones Figure 6AC Figure 6AD
83. ord of the number of occupancies and alarms since it was turned on These numbers are displayed here The counter may be cleared by pressing lt 1 gt pressing any other key exits this mode without clearing the counters Each time the system is power cycled these numbers will be cleared from memory 3 3 5 4 NEU ENABLE Pressing a lt 1 gt enables the neutron channels pressing a lt 0 gt disables them 3 3 6 COMM SET 3 3 6 1 IP Enter the desired IP address using the keypad All entries must be 3 digits if a one or two digit value is used it must be padded with leading zeros 1 e 192 168 001 101 NOTE When entering an IP address into a Computer program all leading zeros must be removed i e 192 168 1 101 This document ts the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 34 t Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 3 3 6 2 SUBNET Enter desired value 3 3 6 3 DNS 3 3 6 4 GATEWAY NOTE DNS amp Gateway are not used in a local area network and should be set to zero This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 35 THA Em Systems
84. ound there are numerous ground test points on the board Always connect the ground lead first TP14 17 are convenient grounds use a micro clip lead and leave it connected while performing all low voltage checks Test Point Voltage Description TP31 12 6 volts or gt Switched battery TP33 5 0 2 volts VCC TP9 3 to 5 volts negative voltage TP30 5 0 005 volts discriminator reference voltage TP12 Neutron LLD setting 0 012 volts normally 0 504 Vdc If TP12 or TP20 are not set TP20 Neutron ULD setting 0 012 volts normally 5 040 Vdc properly refer to Section TP34 3 3 volt Reference 0 3 volts 3 3 5 2 to adjust values Do not proceed with the alignment until these voltages are within tolerance 3 1 3 Alignment The HHV 448 Refer to Drawings 15 and 22 Component Designator The High Voltage is adjusted using R1 on the HHV 448 board Use the high voltage probe to verify that the high voltage is 1 375Vde 10Vdc and is stable 5 Vdc Verify and adjust by disconnecting the MHV high voltage supply cable from the PMFX box see Section 6 4 1 and measuring at the center pin with the probe ground on the outside of the connector DVM should read 1 375 Vde 1375Vdc 3 1 4 Aligning The SCA 774 See Drawing 20 Component Designator Adjust R19 and R20 to maximum CW 7 3 1 5 SCA 775 Slave Pillar Repeat steps 7 2 1 3 through 7 2 1 4 on the slave pillar This completes the neutron alignment This document is the exclusive
85. property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 76 A Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A I l 7 3 2 Neutron Detector Tune up Procedure Increase the LLD until you see a decrease In count rate due to the decrease in the number of the detected Cf 75 Neutrons Counts Proton and Triton Recoil Region i i Gam ma I Sen sitivity i Region Discriminator Set Point Ydc Decrease the LLD until you see an increase in count rate due to the influence of the detected Cf 75 gamma rays l I E I Counts I l Froton and Triton Recoil Region l l Gamma E Sensitivity I Region 0 504 5 040 Discriminator Set Point Vdc This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 11 I l u Systems Ltd f VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 7 3 3 Operational Test Due to the many different environments and materials being monitored the operational test will vary from site to site although several general principles apply in all cases Select an appropriate source and instruct the driver or pedestrian to drive or walk at the normal speed used for monitoring Repeat the test several times and record the sources and sizes used 7 3 4 Performance Verification Checklist Neutron Repairs made if any list component and type of repair System Alig
86. revious steps The Lights and Audible Alarms are secured to the pillar doors by screws or a locking collar To remove disconnect the wires from Terminal Block TB2 and remove the screws To reinstall replace the light or audible alarm replace the screws and connect the wires to TS2 reference Drawing 1A or 2A Be sure to use silicone caulking liberally to ensure water tight integrity of the pillar 8 2 POWER DISTRIBUTION If the unit is totally inoperative verify that the unit is receiving power throughout the system Use Drawing IA or 2A for the following procedures Open the door to the master pillar and measure the ac voltage at the ac terminal block with a DVM VOM or other ac tester If 90 250 Vac is not present the site power must be checked and restored Do not go on to the next step until the 90 250 Vac is present at the ac terminal block Next check the cartridge fuse in the LD 260 Check the fuse if ac is present but dc is absent when the LD 260 1s turned on The battery charger and heaters are the only assemblies that use the 90 250 Vac directly To test the battery charger remove the 3 pin connector from the load disconnect and measure the voltage on pins 1 and 3 of the connector pin 1 is and pin 3 is ground The voltage should be approximately 13 6 Vdc If the voltage is low or not present the battery charger must be replaced or adjusted reference figures 6y This document is the exclusive property of TSA Sys
87. roller that is used in several systems It has many user programmable parameters that can be used to optimize it for a wide variety of applications Refer to Section 3 for details on programming the SC 770 he a j a taar i Figure 2E SC 770 Controller This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 15 Pi Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 3 2 PASSWORD CONTROL The zero lt 0 gt key on the keypad is used to enter the set up mode from the operating screen Before the menus can be accessed the password must be input followed by the pound lt gt key If the password is not entered correctly the system will return to the operating screen NOTE The password is set to 1234 and can not be changed 3 3 PROGRAMMING THE SYSTEM CAUTION Once the password is entered and programming mode is enabled all alarm functions are disabled DO NOT leave the system in programming mode for normal operation CAUTION Always verify the alignment of the system before attempting to program it reference Section 7 2 2 All of the system parameters are controlled from the SC 770 controller located in the master pillar In order to access the SC 770 the pillar door must be opened using the keys supplied with the system To open the door turn the key in the lock and push in the black button above it to release the
88. rolling average Bkg estimation 3 20 second erage Bkg estimation When the monitor is occupied the system will ignore the current 5 second background interval and calculate the alarm threshold based on the previous completed interval Neutron Occupancy 200 msec Occupanc pancy 1 one secorid alarm comparison look back l 2 one second alarm comparison Note that this IS NOT a rolling average This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 47 a I l ap om Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 5 3 MODES 5 3 1 Self Test Mode When the system is turned on it performs a Power On Self Test POST The POST performs the following RAM Tests conventional memory primarily the area used for the processor s stack NVRAM Tests the battery backed non volatile memory used to store parameters and downloadable data LAMPS The audio enunciator and both lamps are turned on for approximately 7 seconds If any of these tests fail the SC 770 will display a FAIL message The system cannot be put into service until the problem is corrected ETHERNET LINK Test for Ethernet link After completing the POST the system will enter the BACKGROUND mode and be ready to operate after the initial 20 second background 1s obtained 5 3 2 Background Mode BACKGROUND mode is the default mode
89. rtical Single Background Time set to Firmware Version Background N Sigma set to Profiling Electronic Alignment Master Pillar SCA 774 HHV 448 Slave Pillar SCA 774 HHV 448 System starts up and runs initial self test without errors All modes operational Background mode in operation area count Operational test list isotope and activity Performed by Date NOTE Most of this data should have been collected on the form provided in Section 3 4 This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 74 Pi gp ios a Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 7 3 NEUTRON MAINTENANCE Once initial installation has been completed little maintenance is required Periodic inspection 1s recommended to insure proper functioning This should include but is not limited to the following visual inspection for loose wires field alignment checking the settings of the control module perform drive through tests A Performance Verification Checklist is included at the end of this section It 1s recommended that a copy of this be filled out whenever the system 1s put into service after tuning and alignment 7 3 1 Electronic Alignment Procedure VOLTAGE AN Since the alignment procedure requires specialized tools and knowledge only qualified technical personnel should work on these i
90. s NOT in cps The alarm comparisons will be based on the sum of the counts during the selected number of intervals 3 3 1 3 OCCUP HOLDIN Occupancy HoldIn is the number of 200ms intervals to hold in after the occupancy signal indicates the system 1s vacant This feature ensures that the rear of the departing vehicle is scanned and prevents it from affecting the background The factory setting 1s 10 intervals two seconds for Vehicle and Train monitors and 5 intervals for Pedestrian monitors but the optimum setting may vary with local conditions NOTE This setting is also used for neutron NOTE f using where back to back truck traffic is present set the OCC HOLDIN to 5 This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 20 Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 3 3 1 4 NSIGMA Sets N sigma the radiation alarm level Where N is the number entered and sigma is the standard deviation of the last average background measurement in cps The n sigma value filed is a three digit field and must be entered as such A leading zero must be entered if the n sigma value is less than 10 0 a 4 n sigma value must be entered as 04 0 The decimal will automatically be placed This formula determines the number of counts above background that will trigger a radiation alarm Sigma std dev of Bkgavg VBkgave l If Bkgayg 400 cps Alarm Thr
91. scriminator settings of LLD 0 069 and ULD 0 455 for a given pillar Complete this step for both the Master and Slave pillar 3 3 2 3 VARIANCE Performs a variance test on all detectors The SC 770 runs 15 second variance passes TSA recommends running five 15 second passes After five passes all variance readings should be less than 0 150 Refer to Appendix A Section 10 0 for further detail on the variance test and the formulas used Press the pound lt gt key to terminate the variance test NOTE The variance for a detector that is disabled or disconnected will be 99 000 Variance mode performs a check to see that successive measurements produce the same amount of counts in each data run 0 15 NOTE For a successful variance test to run all movement in the immediate vicinity of the pillars must be ceased throughout the duration of the test A vehicle person or object moving through behind or around the pillars could cause a detector or detectors to fail the variance test The shielding due to an object s attenuation may change the count rate sufficiently to cause a test failure This document ts the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 25 fill i f Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 3 3 2 4 SET CLOCK Sets the system time and date The operator will be prompted to enter the hours in 24 hour format min
92. ssive infra red sensors Weight VM 250AGN Approximately 800 Ib 362 kg per pillar PM 700AGN Approximately 700 Ib 318 kg per pillar Dimensions Not including mounting flanges VM 250AGN 120 h x 26 w x 9 d 305 x 66 x 22 cm PM 700AGN 84 h x 26 w x 9 d 213 x 66 x 22 cm This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 8 ivi A Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 1 4 OPTIONAL COMPONENTS 1 4 1 Alarm Monitor Model AM 270 The TSA Model AM 270 Alarm Monitor is a self contained unit designed for use with TSA s Pedestrian and Vehicle Portal monitors The AM 270 provides both remote audible and remote visual alarm indicators for radiation levels high and low background and tamper conditions In addition output relays are provided to integrate the AM 270 into existing alarm systems NOTE RELAY OUTPUT must be left in the lt ON gt position for the AM 270 to function reference Section 3 3 2 5 Using TB3 circled in figure 1B which is the 10 pin terminal block in the master side just above the SC 770 controller you can access the output relay contacts for the remote alarm panel The pins are used for the following Terminal Signal AM 270 Block 2 Wire Color Pin 1 gRAD1 Brown Red Light Pin 3 NRAD1 Red Blue Light Pin 5 Fault Orange Yellow Light Pin 7 Tamper White Yellow Light Pin 12 GND Black Figure 1A
93. t value the DACs can output Once the pound lt gt key has been pressed the ULD menu will be presented Use the same method to set the ULD This sets the discriminator levels for the master pillar After the discriminators in the master pillar have been set the menu heading will change to SLAVE ULD LLD Repeat the above process to set the discriminators for the slave pillar e a a a 2 Manual Adjustment At the MASTER ULD LLD menu the discriminators may be adjusted one step at a time while observing the counts from both detectors The following keys are used lt 1 gt increments the LLD by one step approximately 0 0098 volts lt 7 gt decrements the LLD by one step lt 3 gt increments the ULD by one step approximately 0 0196 volts lt 9 gt decrements the ULD by one step This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 24 Pi T Ex E gs Systems L VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A When the settings are satisfactory press the pound lt gt key to accept the settings and advance the menu for the slave pillar The display will change from MASTER ULD LLD to SLAVE ULD LLD to indicate that the discriminators in the slave pillar are ready to be adjusted Repeat the process for the slave pillar 3 Factory Defaults Pressing the asterisk lt gt key at either the master or slave screen will load the default di
94. tems Ltd Unauthorized use or distribution is strictly prohibited 80 I l u Systems Ltd f VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A amp 6z To check the 12 volt power system check the battery voltage with the connector at LD 260 J4 disconnected the battery voltage should be at least 12 5 Vdc Reconnect J4 and check that the switch on the load disconnect is in the ON position and the green LED is on If the battery voltage is low less than 12 5 Vdc and the charger is working try to recharge the battery If the battery will not charge it must be replaced The load disconnect will not turn on if there is a short in the system a blown fuse or a defective LD 260 To test for this condition remove LD 260 J2 If the green LED comes on there is a short in the system See Drawing 25 for more details All low voltage power 12 Vdc for the pillar is controlled by the load disconnect The solid state relay in the LD 260 switches the battery voltage to the system When the LD 260 is turned on it energizes the coil of the solid state relay This closes the relay and supplies battery voltage to TS2 through a 5 amp cartridge fuse From there it is distributed to the system electronics By checking for the presence of 12 Vdc at the various points it is possible to eliminate the power cabling and connections as the source of problems If a point does not have the proper voltage then the cables between that point
95. the lt gt key toggles the setting The lt gt key accepts the current setting refer to Section 11 0 Appendix B Data String Outputs This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 29 Ii t Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 3 3 4 NEUTRON PARAMETERS HI LEVEL HI background fault level MAX INTRVALS Maximum number of one second intervals for alarm comparison ALPHA VALUE False alarm rate ZMAX VALUE Alarm value after MAX intervals is reached SEQ TEST Forces a neutron alarm if set point is exceeded Wn BR WD NO Re 3 3 4 1 HI LEVELS Sets the high background fault level in cps per detector bank If the counts exceed this level the system will indicate a HI background fault and will not allow further operation until the problem is corrected This level should be set to alarm if the average background deviates too far from normal normally set at 50 cps per detector bank This alarm is intended to flag a failure in the electronics NOTE There are no LO neutron alarms because the neutron background routinely fluctuates to zero counts per second per bank of detector tubes 3 3 4 2 MAX INTRVALS Maximum number of one second intervals used in the test before the result is compared to the ZMAX value The range is 0 20 intervals the factory default setting 2 This document is the ex
96. tting receiving ACT F H Steady ON for full duplex OFF for half duplex Both of the RJ 45 ports of the CS14 support auto cross MDIX operation performing the auto cross function under auto negotiation mode only Two sets of LEDs to indicate the operating status of ports are mounted on the top and front For each port there are Link and Activity LK ACT LEDs on the top indicating that the media cables are connected correctly and showing by flashing when there is traffic a a T ia Tg uo m barreattGom 10 100 gt FH1 Magnum cS14P Premium Rated Converter Switch geglAt H Eta ji i _ Figure 6X Figure 6W i Switch Fiber Port 1 is controlled by an F H switch provided underneath the port socket F enables full duplex mode and H enables half duplex mode The default setting is F NOTE This switch is very small and can easily be broken care must be taken when switching form one mode to the other This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 59 f Ii im ie Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 6 9 THE LD 260 LOAD DISCONNECT The LD 260 Load Disconnect controls the power to the system and shows the status of the power with a pair of LEDs The amber LED indicates that ac power is present the green LED indicates that the system power is turned o
97. uffer is filled the background is updated This results in a background update at background time 10 Initial background accumulation requires the full background time Standard Background Standard background requires the full background time for the initial background and updates ULD The Upper Level Discriminator provides an adjustable threshold that determines the highest signal level that will be accepted as a nuclear pulse by the system s electronics Some systems do not have an ULD Also see LLD This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 84 I l ap ios a Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 10 0 APPENDIX A The following formulas are used in various systems manufactured by TSA Systems Ltd They are provided to assist in verifying system operation and to give our customers a better understanding of how the systems operate This is a general list but most systems use some of these formulas ACTIVITY FROM COUNTS Activity D Eff 37 Where Activity Activity in uCi Eff Decimal efficiency i e 10 0 10 N Net counts per second cps background cps 37 bq per nCi EFFICIENCY ez N _ 37 activity Where N cps with source background cps activity test source activity in nCi N Sigma Alarm Level Used to calculate the alarm level on instruments using n sigma alarm algorithm
98. usive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 90 Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A Ethernet Output Only The following messages are sent on power up if there is an Ethernet link established The messages are also sent when the Pmode program mode is exited back to a normal operating screen and at midnight of the SC 770 internal clock These messages are sent so that the user can see the current settings of the monitor SG1 002000 000068 05 10 07 0 P SG2 1100 0 069 0 455 01 1010 P SG3 0 069 0 455 20 0 00 1 08 8 SN1 000050 02 0047 1200 04 PPP SN2 0 504 5 040 0 504 5 040 PP Output S G1 002000 000068 05 10 07 0 P CRLF Definition Setup G amma 1 Background High Fault Alarm Background Low Fault Alarm Intervals Occupancy Holdin Nsigma Background High and Low fault alarms units are in counts per second per detector Intervals and Occupancy Holdin units are 200 millisecond intervals Nsigma is a float value used in the alarm algorithm P a place holder to make the message 32 bytes to match all other messages Output S G2 1111 0 069 0 455 01 1010 P CRLF Definition Setup G amma 2 Detectors on line Master Lower level discriminator Master Upper level discriminator Relay output Algorithm Detectors on line 1 1 0 0 Masters ON Slave OFF Position Definition First number Master lower Second number Master upper Third num
99. utes month date and year last two digits only from the keypad When the pound lt gt key is pressed after the last entry the data is written to the internal clock calendar 3 3 2 5 RELAY OUTPUT Determines functionality of output relay and local alarms Entering lt 1 gt OFF disables local audio and visual alarms and fault indicator after power up Entering lt 2 gt ON enables local audio and visual alarms and fault indicator after power up Entering lt 3 gt AUTO local audio and visual alarms are disabled unless the Ethernet connection is lost then the system will automatically revert to ON 3 3 3 ADVANCED GAMMA ALGORITHM BKG TIME SHOW VERSION CLEAR G CNTS F ALARM TEST BKG NSIGMA SYSTEM I D PROFILING COONNDNNBWN HE This document ts the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 26 A Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A I l f 3 3 3 1 ALGORITHM Permits the operator to select various configurations of gamma detectors to be included in the alarm comparisons This allows the operator to optimize the system operation for local conditions When this mode is selected the selections will be presented on the display one at a time Pressing any key except the lt gt will toggle the calculation on and off To accept the current setting press the lt gt key to step to the n
100. y 2 1 2 Storage If the instrument is to be stored for any length of time disconnect power to the instrument and remove and store any batteries separately in a cool place If batteries are to be stored for any length of time they should be inspected and if necessary fully charged at least once a month The enclosures may be laid flat on their backs but should not be stacked Care should always be taken to avoid subjecting the instrument to severe mechanical or environmental shock The instrument should be stored in a dry temperature controlled location 2 1 3 Shipping Before returning the instrument for any reason notify TSA Systems of the difficulty encountered giving the model and serial numbers of the equipment TSA will furnish specific shipping instructions 2 2 SITE SELECTION AND PREPARATION Select a site in accordance with vulnerability assessments and engineering surveys The pillars will need to have an adequate base or some means of stabilization to insure that they remain stationary after alignment In addition the system requires 90 250 Vac 47 63 Hz site power supply This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 10 Ii gp T7 a Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 2 3 DETECTOR CABINET INSTALLATION The monitor is shipped completely assembled for ease of handling and to minimize shipping da
101. y to IR photo beam sensors with Nano Controllers because they are configured as Dark Sensing Current Sourcing This means that the relay is open with no occupancy and the relay closes if occupancy is sensed IR photo beams without Nano Controllers are Dark Sensing Current Sinking which means the relay opens on occupancy This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 64 imi Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A 6 117 ALARM LIGHTS AND AUDIBLE ENUNCIATOR A red strobe light and audio enunciator are used to indicate gamma radiation alarms A blue strobe light and audio enunciator are used to indicate neutron radiation alarms All operate on 12 Vdc A steady amber light is used to indicate a High or Low Fault condition and or ac power loss Gamma Neutron Light Light Fault Light eS Gamma Neutron Light Light PM VM 250AGN Figure 6AG Figure 6AH This document ts the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 65 a ru A Ltd I l it VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A Systems Lt 7 0 MAINTENANCE It is recommended that scheduled maintenance be completed on regular intervals Cleaning can be completed using water and a mild detergent along with a brush or wash cloth WARNING Do not use high pressure sprayers
102. ystem may be setup in any location where a 90 250 Vac 47 63 Hz power source 1s available Each pillar contains two gamma radiation detector assemblies The VM 250AGN contains eight He tubes and the PM 700AGN contains four He tubes for neutron measurement This document is the exclusive property of TSA Systems Ltd Unauthorized use or distribution is strictly prohibited 6 f Ii u Systems Ltd VM 250AGN amp PM 700AGN Manual Doc 5000 Rev A The master pillar also has a System Controller Model SC 770 a Single Channel Analyzer Model SCA 715 a battery battery charger load disconnect LD 260 RS 232 to RJ 485 converter Ethernet to Fiber media converter PMFX Signal Pick Off box speed sense Nano Controller occupancy detectors alarm lights and an audio indicator s The slave pillar contains a Single Channel Analyzer Model SCA 775 two occupancy emitters and an ultrasonic sensor The PM 700AGN slave pillar also contains a secondary occupancy sensor The pillars use lead shielding on the rear and sides of the gamma detectors to reduce the background radiation and increase the ability of the system to detect SNM passing through the portal User supplied conduits for the VM 250AGN are required for power and signal cables between pillars and communication to external equipment The PM 700AGN comes with two conduits to route the interface wiring between the two pillars Master pillar ac power

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