Vehicle Radiation Monitor : Operators Manual, rev. 2.2
Contents
1. set to 2 ERR 000 Error Code current error messages see 6 8 below Ver 2 16 8 Software Version display shows 16 8 D 4 of detectors set to 4 O 7 of OS set to 7 D N Dust Parameter set to NO C 1 Discriminators 1 Normal mode C mode set at 10 S D Speed Alert set to D Default L 3 Speed Limit set to 3 U U Speed Units Date Format U US Date mph E Euro date Km h X US Date Km h Y Euro Date mph Poff Date Time of last time system power was switched OFF ENEE 2 9 SYSTEM TEST In order to help the user test the system on a regular basis special test capabilities are built into the GR 526 510 Refer to Appendix N for full details O ge 10 DOTE CCCCCCCOCCCOCOCCCCCOOCOOOON a EN AAA AAA 4 Kl e m VUELA AAA AAA AA Y 4 A t d i i ib t A rr GR 526 510 OPERATORS Manual Version 2416 2 10 TELE CHECK The Exploranium Service Department computer can access the system on a regular basis to perform system performance analysis as required without interfering with system performance In previous versions this access interrupted system monitoring so frequent contact was required to select a quiet time for data access but this is not a problem now Exploranium offers optional extensive data analysis of system performance with weekly access and monthly data reports contact Exploranium for more information and see Appendix2. 36 ALARM PROCEDURES ies 15 d y e 2 de a 4 0 VIEWING ALARM DATA IN MEMORY RAVAL JARA 17 EN f d d a 5 0 PARAMETER SETTINGS ccssssersseressecsorerststecsseceseuseversesee SEENEN 18 3 APPENDIX A NUISANCE Alarims cccrscssssssssseescesstssssessersstvssecrsecssarstenesseoss ere 19 j EEN ww K Gi CN hh KKK TC PENDIX D SPECIAL SYSTEM PASSWORDS coco KPLORANIUM APPENDIX K RECOMMENDED MAINTENANCE PROCEDURES endo 23 A SISTE APPENDIX N SYSTEM TESTING cnn 28 GR 526 510 OPERATORS MANUAL for DYNAMIC VEHICLE RADIATION MONITORING Software Version 2V16 CCCCOCOOCOQCON USERS ARE HEREBY NOTIFIED THAT THIS MANUAL CONTAINS TECHNICAL INFORMATION OF A PROPRIETARY NATURE THIS INFORMATION IS NECESSARY FOR TECHNICALLY KNOWLEDGEABLE USERS TO UNDERSTAND SYSTEM OPERATION AND TO SATISFY THEMSELVES THAT THE SYSTEM IS PERFORMING CORRECTLY o D gt 3 2 s oe wee ee e se a a ee cas ee e aS A Tar y e EXPLORANIUM ACCEPTS THAT IT IS THE RIGHT OF SUCH USERS TO BE PRIVY TO THIS INFORMATION HOWEVER THIS DOCUMENTATION IS PROVIDED SOLELY FOR THE BENEFIT OF OWNERS OF THE GR 500 SERIES SYSTEM AND DISSEMINATION OF THE DETAILED TECHNICAL INFORMATION PROVIDED MAY BE CONSIDERED AS LEGALLY CONTRAVENING THE NORMAL SUPPLIER CUSTOMER RELATIONSHIP pea met _ D UNAUTHORIZED RELEASE OF DETAILED TECHNICAL INFORMATION TO A THIRD PARTY WILL BE CONSIDERED ASA CONTRAVE
3. repeatina the procedure for various source holder locations until the best location is determined Once the correct location is found the source ring should be glued in place AB also C D ete if installed TRAFFIC LIGHT RED ON al others OFF 7 The user must now take the special magnetic Test Source and place it on ANY detector in it s special holder then stand back clear of the detectors The program can recognize which detector has the source in place and as soon as this identification is complete the test of that detector begins Pr Siga AR St A PRE dk aan ET A dt 4 d oe ON As an example place it on the B detector first ACTION B detector data is being analysed DISPLAY Source B xx xx 30 secs and counting down TRAFFIC LIGHT RED FLASH all others OFF 1000000000000000000000000D000000 NNNNNNNWNNNNNNNNRNNNRNNNNMHNNNNWNN VU TEST PROCEDURE 8 When the Traffic Light goes from FLASHING to STEADY move the source to the next 1 Ensure that no vehicles will pass through the system in the 4 5 minutes normally required to detector test the system as this procedure disables system monitoring If NO Traffic Lights are installed use a watch and wait 45 seconds after the source is firmly 2 Ensure that there are no vehicles parked in front of the detectors and preferably none within in place before retrieving it and moving it to the next detector 30 ft 10m These test results are often used for
4. 3 GR 526 510 OPERATORS Manual Version 2 VIG a i GR 526 510 OPERATORS Manual Version 2V16 e 6 Ps 24 DISPLAY MESSAGES EN e EENEG a il The CONSOLE DISPLAY is used to alert the user to any problem with the system and to display re er TT l f system messages advising the user of the current status of system performance When power to the system is turned on the following screen appears on the Console Display In the table below all messages are listed STATUS shows the status of the STATUS Yellow button EES TRAFFIC shows the status of the Traffic Light output if used ps ge ee J510 Audio shows the action of the internai audio buzzer User action shows the recommended user actions SYSTEM WARMUP Hash YELLOW 10 second wait on WAIT system startup GREEN one None Remtyto nomex YELLOW none None Vehicle passing Modem access occurring Various None and OUT Siow Flash YELLOW Slow beep Press STATUS Super high speed flash vehicle various one ome special moge Fast Flash Various Fast beep Call Optical Sensor maintenance defective Fast Flash Various Fast beep Cali BOTH OS defective maintenance Fast Flash Various Fast beep Call OS3 4 defective if Maintenance used Detector ERR A1 cntr Fast Flash Various Fast beep Call A detector is Maintenance defective COMM FAILURE A Fast Flash Various Fast beep Call Detector A Comm Maintenance problem Fast Flas
5. ALARM PROBABLY HAZARDOUS MATERIAL T 12 05 16 BG 2610 TH 300000 IN 0 MI 325000 LO 18730 P1 5 P2 0 SO 1 C BNV 01 2 3816 8 DODCSLU 302 510 N301592 00004 2 NID3U Fig 7 q x_ aa 3 3 ALARM TIMING LOW ALARM IF A VEHICLE IS PRESENT The system has determined that the labelled L1 L2 radiation levels from the vehicle that has just left the detectors are above the alarm threshold If LOW 1A this means that the source is closer to detector A etc IF NO VEHICLE PRESENT Alarm LOW Alarm L2 can occur with no vehicle present and in this case was caused by whatever was near the detectors at that time HIGH ALARM Immediate alarms Radiation levels have risen VERY significantly fabelled H3 H4 above normal background These alarms are sounded immediately and therefore may relate to the vehicle that is between the detectors at the moment the alarm sounds or has just passed d GR 526 510 OPERATORS Manual Version 2V16__ _ _ a 13 Se gege Drnoppnnpnnnponnpnpopnpoppnopnbpnppbtcrcn y _ rr gt e zem _ a IYVUVYUVVVVVVYVVVVYIVVUVDVVDVDDODVODEDEG aan _ A m eee EN GR 526 510 OPERATORS Manual 3 4 ALARM LEVELS detailed explanation LOW 1A this is the MOST SENSITIVE alarm on the system and is only activated when a vehicle is passing through the detectors The A means that the primary afarm occurred on the A detector this is th
6. Parameter to improve system response OTHER MATERIALS that can cause alarms Alum Aluminum sulfide Bonding Mortar Bonding pour tile Ceramics Corrosive solids Fiberboards Fire brick Fire clay Fluidox 141 Industrial ceramics such as nozzles and sleeves Insulation Ladle brick Oxytherm R1 Potassium Permanganate Pyro block Refractories Liquid Petroleum Gas often contains Radon NOTE some of these materiais can contain naturally occurring radioactive material but in volume may create enough of a radioactive source to cause a sensitive system to alarm However it is CORRECT that the system should alarm as in these cases it IS radioactive material _ GR 526 510 OPERATORS Manual Version 2V16 page 22 A ee E AAA A GE AAR or AC ADA WORT A eee I RET COSS N UDA L a The system has a variety of reserved Passwords as listed below 1f the user selects one of these as their Maintenance password the system will not accept the data and a different Password must be selected 1492 to access stored ALARM DATA see Section 4 1590 reserved 2580 reserved 3214 to select special test mode see Appendix N 4697 reserved 5555 reserved 7171 reserved 8741 reserved 9191 to access the HISTORY FILE see Section 6 3 9999 to print CURRENT PARAMETERS see Section 6 6 _ U em NNNNNNNNNNNNNNNNNNNNNMNNVNNNNNN H 1nnnnnnnnnnnnnnnnnnnnnnnnnnnnnnDn GR 526 510 OPERATORS Manual Ve
7. Various Summary alarms being printed Various None System parameters being printed Alarms only by OS Various Speed Alert suspended Defective modem Modem 1 0 error Fast flash YELLOW Fast beep Call flash Maintenance Various System being contacted by modem Various System being contacted by modem Note 1 In this unusual condition the Audio is ON and may not be reset using the STATUS button The user should switch the system OFF to prevent the audio Maintenance may disconnect the audio temporarily while awaiting modem support from Exploranium Remote Monitoring Remote Vehicle Log 2 5 ERRORS DURING INITIALIZATION When the system goes through SYSTEM INITIALIZATION a thorough check of all system parameters is made When these tests are being carried out the screen shown in Fig 1 is shown At the conclusion of these tests if NO errors are found the display changes to the Monitoring display However if the tests determine that errors exists during these tests then the following sequence occurs the console Audio Buzzer fast beeps at a 3 sec rate the STATUS button flashes at a 3 sec rate Yellow Traffic Light the errors are listed on the display for 10 seconds After 10 seconds the display automatically goes into the Monitoring Mode see Fig 2 and the errors are displayed as listed above Ier Jus Jus alarms being printed anananannannannnanananannannecannage AA MAI AMMHA MA
8. a ee emmer pen H r TT A A VDpnnnpnnpnnnnnnnnnnnonnnnnnnnnnnnn mo VWWAWANKWNWNWNWNWNWNWNWNNKANKNNKEWNASKWNKWNWNWNWAN GR 526 510 OPERATORS Manual Version 2V16 _ 0 VIEWING ALARM DATA IN MEMORY The GR 526 510 will store up to 30 typical alarms in memory however VERY LONG alarms can limit the number of alarms stored An alarm access password is built into the system to allow an authorized user to review stored alarms This password is different from the Maintenance password See section 5 28 The alarm password is lt ENTER 1 4 9 2 ENTER gt Once entered the following screen appears RAYA ALARMS tht Bw Level 4 26 96 17 11 21 Lia 10 18 94 17 18 11 H2B 11 22 94 11 01 22 DSZ Select alarm press ENTER to view Fig 8 cc is a cursor used to select an alarm by using the UP and DOWN arrow is a sequential starting at 1 to label the alarm This number increases to 99 then RESETs to 1 Date isthe Date that the alarm occurred Time is the TIME that the alarm occurred Level is the Alarm LEVEL There are various data here as follows L2A L LOW level alarm 2 LOW Alarm L2 A B primarily on detector A B a Test Alarm H3A H HIGH level alarm 3 Alarm Level 3 A primarily on detector A D5Z D DANGER alarm 5 Alarm level 5 2 ALL detectors Size the number of samples for each vehicle analysis This parameter is usually only useful to Ex
9. actually the Exposure Rate AT THE DETECTOR FACE and should NOT be considered as an EXACT measure of radiation for safety or hazard evaluation The actual buried source if exposed by dumping the vehicle will have much higher levels when not shielded by the scrap cover LOW 0 5 50pR h 0 005 0 5 pSv h HIGH 50 150uR h 0 5 1 5 ySv h DANGER ALL DETECTORS ABOVE 150 pR h 1 5 pSv h The GR 526 510 is designed to detect very smal changes in radiation levels so all of the system s components and data analysis algorithms have been optimized to meet this design objective Due to these design requirements the system saturates at radiation levels above 150 pR h 1 5 pSv h version V16 E NAAA ial 2 GR 526 510 OPERATORS Manual Version 2V16 _ DIGO 6 Ke GR 526 510 OPERATORS Manual Version 2V16 me S ps S s nua GIS e Mo eee ee di HIGH ALARM PROCEDURE Alarm Level H3 and H4 AS a result any radiation level above 300 pR h produces a HIGH radiation alarm on Ge A the detector Bt After silencing the audio alarm inspect the Alarm display and note the approximate location of Le E the source of radioactivity The left edge of the screen is the START of vehicle and the right Thus a NOT very dangerous 200 uR h 2 pSv h source positioned close to 1 detector 3 side is the END If the Printer is enabled the alarm will also be printed would probably give ONLY a HIGH alarm However a very dangerous 400 000u4R
10. are easy to identify as they are quite narrow typically 1 second and wiil of course NOT re occur when the vehicle is re tested unless by an incredible coincidence This problem is often solved by arranging with local X ray service groups that they will notify GR 326 510 users when they are in the vicinity e MISCELLANEOUS MATERIAL ALARMS FIREBRICK used to line furnaces has a significant Thorium content and a vehicle loaded with firebrick will usually cause the system to alarm ee ee TT TTT r vm mm mmm ap VAN NNNNANNNNNNNKNA N NS V 7 Crerercorcorconcncerecrnenos V dNNNNNNNNNWNWN AN GR 526 310 OPERATORS Manual Aa eS S eA pages t CALUMITE is a powder material made by grinding slag etc This material contains trace amounts of Uranium Potassium and Thorium and if a large volume is loaded into a vehicle will probably alarm the system CONCRETE concrete usually contains trace amounts of Potassium and if in significant volume in a load can cause the system to alarm DUST some users have reported alarms on hot baghouse dust If the load is allowed to cool then the system will not alarm as they pass This is a result of a short lived isotope THORON which is derived from Thorium material Furnace Dust often contains low levels of URANIUM and THORIUM from various sources and if these levels are high enough an alarm can occur Spectrometer sampling can be used to confirm this situation Note new Dust
11. comparative system analysis and so it is important not to distort the data by passing vehicles influencing local background results NOTE If somehow the source is removed by accident before the 30 second accumulation is complete just place it back in place and the test will be restarted on that detector 3 Enter Password 3214 best method is lt Enter 3 2 1 4 Enter gt slowly If you moved it to the A detector NOTE a 3 minute timer is started once this Password is entered if 3 minutes pass with no ACTION A detector data is being analysed user action this test procedure will automatically terminate to ensure that the system DISPLAY Source A cannot be left in the test state xx xx 30 secs and counting down TRAFFIC LIGHT RED FLASH all others OFF ACTION System is ready to start the Test DISPLAY SENSITIVITY TEST at the top 9 When ail detectors have been tested the Traffic light will change briefly to RED RUN start STOP exit TRAFFIC LIGHT RED ON all others OFF Remove the source and return to the console 4 The user should ensure no vehicles are nearby and no one is CS ER between the detectors then press RUN L gt A m m A mp A Y AA Pm e D e ese e e os cee ery es v r engen A VM a a A a om bh ed Meter e gt hd GR 526 510 OPERATORS Manual Version 2V16 page 28 omplete ts taper wit be erased from the console display screen If somehow the user did not test a detector it will sti
12. h 4 Cr mSv h source would give a LEVEL 5 alarm Ge E Press the ALARM button to return to norma monitoring mode A It is recommended that the HIGH alarm vehicle be moved at least 100 feet from the detectors 3 6 ALARM PROCEDURES to allow monitoring of other vehicles to continue without interference Follow local procedures for investigating the source of the radioactivity Exploranium strongly recommends that users of the GR 526 510 develop a plant operating Cr 2 procedure that specifies the actions to be taken in the event of an alarm These procedures a 4 3 gg should De developed under the guidance of a certified Health Physicist and in co operation with Le DANGER LEVEL 5 ALARM PROCEDURE local and state authorities gt The basic recommendations made in this manual can be used as the starting point for a procedure however restrictions pertaining to handling storage and transportation of radioactive materials vary widely ly Proceed on the assumption that a potentially hazardous source is in 2 the vehicle move personnel and driver at least 100 ft away from the vehicle strictly control access to the area allow access only to qualified personnel immediately advise the RSO to verify the alarm and implement correct procedures Exploranium is NOT certified to act as a Health Physics consultant to fully advise users on correct methods of handling and regulation compiiance so it is essential that each user develo
13. would assume that the vehicle was the alarm If the vehicle Is retested and NO alarm occurs the user could assume that a FALSE ALARM had been generated These medical alarms can only be isolated by common sense procedures such as restricting personnel near the system during retesting etc Ae ee ees EE ete nee eee ENEE EE me A Si e a GR 526 510 OPERATORS Manual Version 2V16 2 20 BI PARTIALLY LOADED VEHICLES If a vehicle contains a variable density load of scrap then another type of NUISANCE alarm can occur For emphasis the following is an exaggerated example of this problem to permit the user to clearly understand this problem Figure 9 The GR 526 510 system will identify and suppress the vast majority of such nuisance alarms but very occasionally such strange alarms may occur d X Ray GAUGING SERVICES In the last few years we have seen many alarms caused by an X ray crew who are crack testing steel and concrete pipes This is a common service and involves shooting a high intensity narrow beam of radiation FOR A VERY SHORT PERIOD at the material and illuminating an X ray plate looking for cracks Unfortunately if such a beam is bore sighted at one of the GR 526 510 radiation detectors even though such a source may be more than ONE MILE away the GR 526 510 CAN ALARM These alarms can also occur WHEN NO VEHICLE IS PRESENT unless parameters are adjusted to prevent this Normally such alarms
14. 177 DA10 BEE Pour consultation Projerd agrandissement du lieu 8 D D D EE BERN e y our consultatio wis A A A SS NEE al o STATS ST TEST IT EE e Een Se i sur 2lace seu emen y e 2 AR IN nord par Usine de one arbenale t o RADIATION DETECTION Systems Lachenaie 6212 03 0C6 2 2 ot Sot i d GR 526 510 Vehicle Radiation Monitor 2 e y a e Software Version 2V16 d a r OPERATORS MANUAL Rev 2 2 2 el Ke i l g 2 y A 2 gt Table of Contents nn gt 2 f el gt GR 526 510 o LO E e ea 2 Li A O 2 e itori o 1 2 GR 526 510 SYSTEM DESCRIPTION General 2 IC onitormg System 5 Vehicle Mon g gt Y d 2 1 3 TIN CASE OF DIFFICULTY iaa 3 R OPERATORS MA ANI L F e 1 4 DOCUMENTATION rd 4 2 PART NO 93516 3 e s S REV 2 2 SE 2 0 OPERATION AAA lisiilititt TLL lr reir ir rrrrrr ri rere rrr 5 2 a et 2 1 GR 526 510 CONSOLE PRIMARY FEATURES coacciones 5 E A A ee 5 E April 2002 ni dech STARTUP SCREEN add ai 6 2 y 0 ee AE ee 7 cia 2 5 ERRORS DURING NITIA ATION anos 8 2 e 2 6 TRAFIC LIGHT ect A a r 9 gt ge EE EE 9 7 ae 2 8 CURRENT PARAMETERS PRINTOUT EEN 10 2 y zf 2 9 SYSTEM TEST neeese E 10 pa 2 TEE CAOS aa e aia 11 gt 3 0 ALARM DISPLAYS AND PROCEDURES es A A 12 ER ee EE Eege 12 2 we 3 2 DANGER LEVEL 5 ALARM sncctaiciidicda la ette ciao 12 a ao Bide ALARM TIMING a iaa 13 T d 3 4 ALARM LEVELS detailed explanation elea 14 gt gt 3 5 ALARM LEVELS AND EXPOSURE LIMITS E EE 14
15. 1923 55 P2 1 SI 3 C BNV Ol 2 38516 8DODCSLU 302510N301592000042N1D3U Fig 5 With the Audio alarm stopped pressing the red ALARM button again a second time will cancel the Alarm Display and the system will go back to the normal display screen The user has 4 minutes from this point to view the alarm before the display reverts to the Monitoring Display EEn a r eaaa aa a S ZOO 3 2 DANGER LEVEL 5 ALARM LEVEL 5 is a special Alarm level that could denote hazardous material with a potential personnel exposure hazard For this reason it has a special display Fig 6 and printout Fig 7 is screen appears press ALARM to silence the audio and the screen will replace the message Press ALARM to silence HORN with proceed with caution gt gt gt gt LEVELSALARM lt lt lt lt Holaaa lolo ajaialojolaiojollo EEEE VERY HIGH LEYEL ALARM Correct alarm procedures depends on the plant but normally the vehicle will have passed so press ALARM again and the message Press ALARM if ready will appear and the ALARM light will flash Pressing ALARM a third time returns the system to Monitoring gt PROBABLY il HAZARDOUS MATERIAL Jail lalola EERE ETE E EEE ERE E E E EE OE SPECIAL PRINTOUT ALARM 10 DANGER 4 26 96 12 09 36 A special alarm printout is used to clearly distinguish this alarm from normal alarms Fig 7 gt gt LEVEL 5 ALARM lt lt lt VERY HIGH LEVEL
16. I AA AIAI AAA A A eee e mmm mmm mmm wm pm wm PS e y i y d A eh 4 Vu A 4 A AA Al A GR 526 510 OPERATORS Manual Version 2V16 page 9 The Audio Buzzer quick beep can only be stopped by pressing STATUS at which time the user accepts responsibility for ensuring that all errors are corrected 2 6 TRAFFIC LIGHT SYSTEM The GR 526 510 is supplied with a TLC Traffic Light Controller Exploranium recommends that users install a complete Traffic Light system as it is very helpful in advising users and drivers of system operation There are 4 control lines available and are usually connected to GREEN YELLOW and RED lights and an external HORN The following is the detailed explanation of their operation and meaning GREEN steady system operational proceed GREEN Flashing both primary Optical Sensors are defective system still alive but sensitivity significantly reduced YELLOW steady EITHER vehicle is being monitored as it passes OR system is not ready user accessing alarms etc so vehicle must WAIT YELLOW SLOW Flashing Venicle speed TOO HIGH YELLOW FAST Flashing System errors bad OS or bad detectors RED steady RADIATION ALARM OR SYSTEM INOPERABLE EXT HORN steady RADIATION ALARM EXT HORN SLOW pulsing Speed Alert 2 7 SPEED ALERT To prevent system sensitivity reductions caused by excessive vehicle speed the system has a built in SPEED control The vehicle speed is shown on the Co
17. M a 5 A o H Fie n 3 E gt es ST aua ee weng ccecaonanannnanaaanannancooceccaonoceccccrc VUVVVVVVVVVVVVVVUUY GR 526 510 OPERATORS Manual 3 0 ALARM DISPLAYS AND PROCEDURES 3 1 IF AN ALARM OCCURS If a RADIATION ALARM occurs the Audio gives a loud continuous tone and the display changes to show the alarm Fig 4 and the alarm is automatically printed Fig 5 unless this option is disabled The Audio alarm will continue indefinitely until the red ALARM button is pressed In the Alarm Display Fig 4 various data are displayed ALARM 10 a sequential alarm for record keeping LOW 1 IN 2170 TH 2340 HI 2420 BG 2610 55 2 SI 3 Alarm designation refer to 3 4 below for more details This refers to the detector that the primary highest alarm was detected on Other labels are A B C D E F for different detectors X an alarm on A B and Y alarm on C D and a b c d e f if a Test Alarm on a detector Vehicle Background 2170 cps Computed alarm threshold 2340 cps Highest radiation count 2420 cps Local Background 2610 cps Count analysis information Vehicle speed 3mph or 3Km h Version 2V16 ALARM 7 29 97 IN 2170TH 2340H1 2420 BG 261055281 3 Press ALARM to silence HORN 10 LOW 1B 12 09 36 Figure 4 LOW 1B 4 26 96 12 09 36 T 12 09 16 BG 2610 TH 2340 IN 2170 HI 2420 LO
18. NTION OF USER AGREEMENTS Vecececoeroeogoece mm fe een Tr na o aa eem IVUVVVUVVUVUVLUVVYVVVVYY GR 526 510 OPERATORS Manual Version 2V16 __ 1 0 GENERA 1 1 INTRODUCTION The GR 500 Series are the state of the art radiation monitoring systems for Truck Rail vehicles in the scrap metal processing and recycling industries The GR 500 Series has been specifically designed to detect the presence of potentially shielded or un shielded radioactive sources that are buried in scrap metal To prevent these expensive and potentially dangerous accidents EXPLORANIUM developed the GR 520 Radiation Detection System in 1988 which was the first system capable of detecting BURIED shielded sources Current models include the high sensitivity GR 510 and GR 526 systems and the recently introduced AT 900 system Exploranium has installed over 500 radiation detection systems in steel mills and scrap handling facilities in 17 countries including USA Canada Mexico Germany Sweden Finland Italy Denmark UK Ireland and many countries in Asia It is impossible for ANY system to catch ALL potential incoming sources for a variety of technical reasons see Appendix A However the technology built into the GR 526 510 together with our previous experience PLUS some recent major technical breakthroughs make the GR 526 510 THE technical limit in this specialised monitoring technology The GR 526 510 will detect almost aii potential normal sources
19. RAL Many users want to test their GR 526 510 systems on a regular basis Exploranium strongly recommends this practice as a means of ensuring system performance is being maintained correctly The following procedures are recommended for correct performance monitoring The basic testing method involves placing a Test Source on the face of the detector and then noting the change in count rate on the console The system provides a data printout of the results that can be used to check system performance on a regular basis SYSTEM TESTING Minimum MONTHLY recommend Daily or Weekly In this procedure a special test source is used in a fixed location on each detector A 30 second reading is taken for each detector with and without the test source This process is semi automatic and requires only 1 person to carry out the test At the conclusion of these tests the SOURCE data is corrected for background and the system printer is used to provide a hard copy This test procedure should take only 2 3 minutes for a 2 detector system and provide very repeatable data for system performance analysis RENE SPECIAL SOURCE MOUNTS After various requests from users for a SIMPLE REPEATABLE test Exploranium has constructed a special source holder that must be glued in place at the required place on the detector face These holders are made of steel and the supplied special Test Source has magnets in it so it will stay in place in the source holder The
20. e next highest level alarm with an Alarm Threshold and can occur EVEN IF NO VEHICLE IS PRESENT if the local radiation background level Significantly changes The B means that the primary alarm occurred on the B detector LOW 2B Other sub labels are C D if C D detectors are used X Y special combination detector alarms and Z Danger alarm HIGH 3 this alarm signifies a very significant increase in local radiation level this alarm level signifies that the local radiation level has increased so high that the detectors are registering their maximum count levels However this is not necessarily hazardous see below HIGH 4 LEVEL 5 This Alarm Level is triggered WHEN ALL SELECTED DETECTORS EXHIBIT A HIGH LEVEL 4 ALARM Thus a LEVEL 5 alarm indicates that the source is PROBABLY a HIGHLY RADIOACTIVE source in the vehicle and this alarm should be treated with GREAT CAUTION and personnel exposure should be limited ee 3 5 ALARM LEVELS AND EXPOSURE LIMITS Potential radiation levels and employee safety are the main considerations when designing alarm procedures Alarm levels provide an indication of the amount of radiation emanating from the source that has triggered the alarm Typical local background radiation levels are typically 5 104R h 0 05 0 1 usv h The following examples assume that the local level IS 5 uR h 0 05uSv and that the system is set with the recommended parameters Note that the levels listed below are
21. e positioned on the detector at the same place each time If the source position is very repeatable then the test data results can also be used to assess system performance over the long term 5 At the end of this time the audio will beep 3 times and ACTION System has stored background and is ready for source tests DISPLAY SENSITIVITY TEST at the top RUN start STOP exit TRAFFIC LIGHT RED ON all others OFF The optimum Test Source location is shown at point Y in Fig 10 Each detector box actually has 2 detectors inside it and for best results the external source should be positioned to give approximately the same response from each detector The GEOMETRIC centre of the detectors is usually the correct location but in some EXPLORANIUM RADIATION DER IYON SYSTEMS EA NS 6 Locate the magnet test source and press RUN nine ACTION System is waiting for a test source user has 3 minutes to place the cases due to internal mechanical variations in the source on any detector detector this centre position isa poor choice The DISPLAY SENSITIVITY TEST at the top recommended method is to temporarily attach the source mount and carry out the following Test Procedures then inspect the results to determine if the selected location is OK The best performance is if the Test Source signal SIG in Fig 11 is approximately equal on the 2 detectors in each box typically 10 This is easily checked by
22. gengt yr vane YYUVDOUVUVUVULUVO H NM a e e rr A er ere er A A _ e A eege es oe rm rs man es GR 526 510 OPERATORS Manual Version 2V16 PPENDIX A NUISANCE Alarm APPENDIX A NUISANCE Alarms Z OZ Z Z OoOO From practical experience as the acknowledged leader in vehicle monitoring technology with an installed base of more than 500 units over the tast 8 years a large variety of practical problems have been experienced The GR 526 510 systems have been extensively modified over the years to solve most of these problems but it is impossible to prevent certain spurious alarms These alarms are not FALSE ALARMS because they are REAL alarms as far as the system is concerned however to the user they are NOT the big shielded source that is the REAL danger However in most cases they have the same characteristics as a REAL alarm so for this reason they are defined as NUISANCE alarms Any monitoring system with enough sensitivity to detect deeply buried shielded sources will suffer from these NUISANCE alarms as there is no technological way to prevent them occurring however sophisticated data processing in the GR 526 510 limits many of these effects because such a system sees the REAL and NUISANCE alarms as the same Thus any serious attempt to prevent these NUISANCE alarms will impair the systems ability to detect REAL alarms so they must be lived with Asa guide to users the following types of NUISANCE alar
23. h Various Fast beep Call Detector A Comm Maintenance problem SYSTEM INOPERABLE Fast Flash ON see Stop vehicles Ali detectors are Note 1 cal defective NO Maintenance BACKGROUND Fast flash YELLOW Fast beep Remove flash vehicle and Radiation Monitor Serial 1234 2 16 8 Test in progress WAIT zs amp a e EA Fig 1 This startup screen is displayed for a few seconds while all components of the system are automatically tested If all parts of the system are working correctly the Console Display will change to show the Monitoring Display Fig 2 3 7 5 2 MPH or Km h SPEED ERR The following message will be printed on the printer RESXX 02 14 96 14 23 00 date time XX represents a diagnostic code for performance analysis See Appendix F for more details If any faults ARE detected the errors are displayed see Section 2 4 for details OS1 ERR or OS2 ERR HH MM SS SPEED STATUS 053 4 ERR INFORMATION MESSAGES frh i Aal COMM ERROR A SPECIAL MESSAGES CUVVUVUVUVUVUUVVUVUV UV VU VU VU VU monitoring possible UPDATE Excess traffic Figure 2 SSB GR 526 510 OPERATORS Manual Message Audio User action pass again 7 Test the Sensitivity test of system system Various TEST the Simple alarm test system SENSITIVITY TEST RED and flash RED PrALA PrtAL
24. ll be displayed on the screen and it can be immediately retested Gen 10 The system printer should produce a printout in a few seconds then the Test is complete During this time TRAFFIC LIGHT YELLOW ON all others OFF 11 When al is complete a few seconds TRAFFIC LIGHT GREEN ON all others OFF 12 The test printout appears as shown in Fig 11 Users should use the SIG data only as this is the data from the SOURCE after BACKGROUND has SENSITIVITY TEST 9999 been removed SIG Src BACKGROUND 3 26 97 14 09 13 ee rd PS mmm ee mem mm e ee ee SU reg delt demm ee AER ee per mm mm Detector BG A Sre Al A2 The SIG data should be accurate typically better than 10 or better from test to test but this depends on local conditions When this testing system is first implemented Exploranium suggest SIG that it be repeated 4 times in 1 week and the data discussed with Exploranium to select a reasonable estimate of probable repeatability Detector BG B Src B1 B2 SIG Fig 11 THE SYSTEM IS NOW READY FOR NORMAL OPERATION eee NOTES a Discuss the data with the Service Department if any strange effects are noted b Careful recording of these data on a regular basis will provide a reasonable estimate of system long term performance Some ageing of the system with time will probably be seen but this should typically be less than 5 10 year Data changes significantly greater than this would suggest premature fail
25. ms are common a CONTAMINATED PIPE Contaminated Pipe is usually steel pipe that has been used in the Oil or Potash industries and has a scale on the inside of the pipe that contains radioactive material usuaily Radium or Thorium This scale is usually of a low enough radiation level to be safe to handle and if melted in the furnace would disappear WITH NO MEASURABLE EFFECT ON THE ENVIRONMENT or STEEL PLANT Unfortunately this pipe typically has a RADIOACTIVE SIGNATURE that is often identical to a REAL shielded source The MAJORITY of material detected by the GR 526 510 will usually be this pipe material BUT IF THIS IS NOT DETECTABLE NEITHER IS A REAL SOURCE Some users have agreed to sort a rejected vehicle load to isolate such pipe and some jurisdictions permit the melting of controlled amounts of this contaminated pipe However the majority of users prefer to reject the load and make it somebody else s problem an understandable sentiment b MEDICAL ALARMS Some plant personnel may receive special medical treatment involving radioactive tracers Barium enema etc For the next few days after this treatment they act as a radiation source to the GR 526 510 system Even though such radiation is low level it can often be enough to set the alarms off This particular type of alarm is very aggravating as it is so variable For example if such a human source passed near the detectors WHEN A VEHICLE WAS PASSING the system user
26. nsole Display in the SPEED location see Fig 2 The speed units of measure mph Km h are selected during Start Up The maximum permissible SPEED of a vehicle passing through the detectors is selectable and is normally set to 3 mph 5 Km h Any vehicle passing at a speed above this limit causes a Speed Alert which gives an Audio alert beeps as well as Visual YELLOW Traffic light flashes The user should realize that reducing the vehicle speed from a maximum of 6 mph 10 Km h to a maximum of 3 mph 5 Km h effectively increases system sensitivity by 40 GR 526 510 OPERATORS Manual Version 2V16 2 8 CURRENT PARAMETERS PRINTOUT Enter Password lt 9 9 9 9 ENTER gt to give a printout of current system parameters as shown in Fig 3 CURRENT PARAMETERS 3214 4 26 97 12 34 19 C 30 B 2 N 5 V 10 O N 1 30 2 15 3 9 MOD 2 ERR 0 000 Ver 2 16 8 D 4 O 7 D N C 1 S D l 3 U U Poff 04 12 97 13 49 15 Figure 3 3214 is the Serial Number of the system Date Time is the Date Time of the printout The following is a list of the parameter settings C 30 Background Correction parameter set to 30 GC EK Background Parameter set to 2 N 5 Number parameter set to 5 V 10 Vehicle Parameter set to 10 O N Alarms ONLY by OS set to NO 1 30 LOW Alarm L1 set to 30 50 for GR 510 2 15 LOW Alarm L2 set to 15 3 9 HI Alarm L3 set to 9 4 for GR 510 MOD 2 Alarm Mode parameter
27. on from the detectors and displays the data on the front panel Liquid Crystal Display Console Display in a chart recorder format GR526 510 OPERATORS Manual i Version 2V16 E ee If the system determines that a source of radioactivity is present an audio alarm i detailed alarm information is displayed on the Console Display The GR 526 510 also performs continuous system diagnosis If a component failure is detected signals can be re routed to take advantage of back up systems designed into the GR 526 510 Any system faults that are detected are displayed on the Console Display enabling Maintenance to be scheduled The GR 526 510 will continue to operate even if some major components have failed to give the user the MAXIMUM detection capability during this period The GR 526 510 system has been specially designed for ONE BUTTON The system is designed to monitor all internal components and to automatically alert the user to any system malfunctions ADVANCED SYSTEM DESIGN PERMITS THE SYSTEM TO OPERATE AT MAXIMUM PERFORMANCE LEVELS WITHOUT REQUIRING THE SCALE OPERATOR TO DO ANYTHING UNTIL AN ALARM OCCURS eee 1 3 IN CASE OF DIFFICULTY in the event of a problem customers can contact the Exploranium Service Centre closest to them 1 Exploranium Canada Address 6108 Edwards Blvd Mississauga ON L5T 2V7 Canada Telephone 905 670 7071 Fax 905 670 7072 Pager 416 614 4551 Service personnel Dan Hoove
28. p procedures that suit their specific circumstances and conform to all applicable laws The following simple procedures are recommended for confirming alarms and vehicle handling Procedures for the investigation of vehicle contents and radioactive material disposal will usually be required but must be developed independently eee LOW ALARM PROCEDURES Alarm Level Li and L2 After silencing the audio alarm inspect the Alarm display and note the approximate location of the source of radioactivity The left edge of the screen is the START of vehicle and the right side is the END If the Printer is enabled the alarm will also be printed Press the ALARM button to return to normal monitoring mode l TRUCKS have the truck circle around and wait at least 15 ft back from the detectors TRAINS move the suspect car back at least 2 cars from the detectors Gpe e e es eg mm a le b A ve y KA dNNNNNNNMNMMMMWMMM MM MM When the vehicle is again positioned prior to the detectors have it proceed forward slowly maximum 3 mph and continuously no stops through the detectors to verify that the alarm is activated a second time Review the Console Display and again note the approximate location of the source Repeat this test a third time If the second and third tests confirm the initial alarm isolate the vehicle and follow local procedures for investigating the source of the radioactivity OHHREHOOHHHOHDHDOOHOHOA mg o lt
29. ploranium Pressing 1 while viewing this display will print a listing of the alarms in memory on the internal printer The ARROW keys are used to select an alarm then pressing lt ENTER gt displays the actual data from the Alarm as described in section 3 1 If lt 1 gt is pressed the alarm is printed in the format described in Section 3 2 10000000000000000000000009N00030 IS T Dn BEZE _ ES e Sr wech a A pm gt qe gt x a i te gr gt a VPOUVUUUU E UU UU UU UU VU yy d V GR 526 510 OPERATORS Manual Version 2V16 e 18 14 b 3 el i d y System Parameters are set during installation and under normal operating conditions do not require adjustments Modification to these parameters may result in seriously degrading system performance To restrict access to the system parameters they are Password protected The system parameters Password is set at installation and is provided to the user at that time If parameters need changing to suit local logistic problems or to enable disable special system features please discuss with Exploranium SPECIAL NOTE ALL PARAMETERS WILL BE SET BY THE EXPLORANIUM ENGINEER AT SYSTEM START UP ANY CHANGE TO THESE PARAMETERS MAY DISABLE SYSTEM OPERATION PLEASE CONTACT EXPLORANIUM BEFORE CHANGING ANY SETTING ON THE GR 526 510 SYSTEM O es A AAA A Poer tre rr re eae AS EE Ge ny ae ey a re Y ar
30. r Fred Walker John Crook 2 Exploranium Europe ENV1 2000 Address Vaclucova 1 A Brno 638 00 Czech Republic Telephone 033 420 5 45 22 2020 Fax 033 420 5 45 22 2024 Mobile 033 420 602 702 075 Service personnel Ivan Kasparec Jara Matejek Dpnnnnnnnnnnnnonnnnnnnnnnnnppb D A A A IVYUVVVNVNVNNVDDNUDNVUOUDND UM UU AU UM GR 526 510 OPERATORS Manual Version 2V16 page 4 1 4 DOCUMENTATION Various support documentation is available for the GR 526 510 system 1 SYSTEM SUMMARY CARD a 1 page 2 sided laminated card that summarizes system operation supplied with all systems Part 93512 2 GR 500 SERIES OPERATORS MANUAL part 93516 3 This manual covers basic system operation alarm information alarm responses basic system maintenance and basic error analysis of system performance 3 GR 500 SERIES SYSTEM MANUAL part 93516 This is an in depth manual that covers system setup parameter selection as well as normal system use 4 GR 500 SERIES MAINTENANCE MANUAL part 93509 This is a detailed manual specially for Maintenance Users may request a special Maintenance Manual for more in depth details of system operation primarily for maintenance personnel a ce ee ee eal mw a w LAAAAKKAHAKAHAAGAAAAAAHAAAARAAHKA JUVUVVVVVUVVUVVVUVVUVVUVVUVUVNUNUVVVA GR 526 510 OPERATORS Manual Version 2V16 p 28 OPERATION E a This section summarizes how the sys
31. reason for this holder is that for repeatable results at least a 30 second sample must be made at each source location and it is extremely difficult to hold the source at a fixed location manually for this period of time New detectors are supplied with these source holders installed but older systems can be upgraded using the SOURCE HOLDER KIT PN 93610 available as an optional item frorn Exploranium and this kit includes 2 steel source holders 1 detector 1 magnet equipped Test Source NOTE IF THIS TEST IS CARRIED OUT WITHOUT USING THE SOURCE HOLDERS FOR PRECISE POSITIONING THE TEST WILL WORK CORRECTLY BUT THE DATA MAY NOT BE REPEATABLE FROM TEST TO TEST DUE TO CHANGES IN THE SOURCE POSITION eegene SOURCE To get repeatable data it is very important that the SAME source be used for each test and that the source is placed the SAME way up every time The test source has a slightly different performance if placed face up or face down on the detector Note the magnet equipped Test Source is colour marked to ensure it is not confused with the normal Test Source D al GR 526 510 OPERATORS Manual Version 2V16 age 27 GR 526 510 OPERATORS Manual l Version 2V16 e 26 7 RCE POSITION _ TION J second background average s being computed z DISPLAY Background meas xx xx starts at 30 secs and counts down TRAFFIC LIGHT RED FLASH ail others OFF It is important that the test source b
32. rsion 2V16 e 23 o rr R A a AD AAA TT ee mM IDIX K RECOMMENDED MAINTENANCE PROCEDURES The following operational procedures are applicable to any Exploranium Radiation Monitoring system but Manual references are for Manual 2V16 1 SET UP A SCALE LOG BOOK for each system mark Serial and specify that the Scale Operator record at a MINIMUM the following data for EACH alarm and any system errors Date time Jee Jaen tevet useracions Joe 5 9 11 05 ckt Ran truck through again JN 3 alarms confirmed Notified Mr eave LKFILAL Ll tks TI here bb KA narra 994 OS error notified Maintenance A Behe TI a Such a log permits the Radiation Safety Officer RSO to have a record of all actions taken Using a regular full Alarm printout see below they can ensure that ALL alarms were handled correctly and investigate errors show that the user is responding correctly to system errors and notifying Maintenance as required show that someone Maintenance Is carrying out regular Test alarms to ensure that the system is functioning correctly 2 SET UP A MAINTENANCE LOG BOOK for each system mark each with the appropriate SERIAL Enter in the LOG BOOK the date of installation and after the installation is OK printout Current Parameters STANDARD see Manual Section 4 12 and glue tape into the book It is highly recommended that as the various tests are carried out on the sy
33. stem that sequential dated notes are kept in the logbook Also regular Test Alarms Parameter History printouts etc should be glued into this logbook thus providing an invaluable record of system performance and a reference guide to track persistent problems a ib c GR 526 510 OPERATORS Manual Version 2V16_ _ e 24 3 DAILY SYSTEM CHECK MINIMUM actions by SCALE personnel CG 1 Inspect the display and ensure that the Yellow STATUS button is NOT flashing If it Le IS flashing note the Errors on the display and call Maintenance Ge 2 Inspect the display and ensure that Date and Time are correct if Date Time have G changed significantly notify Maintenance E 4 WEEKLY SYSTEM CHECK MINIMUM actions by MAINTENANCE 1 Check OS alignment ensure that all OS Receivers have a fast pulsing light 2 flashes sec slower is bad mark in log as a record Check that Date Time are set correctly a significant change could indicate that DEFAULT parameters have been loaded due to RAM error 3 Print out Current Parameters and compare to normal parameters printed in the LOG BOOK glue in log as a record 4 Carry out a SENSITIVITY CHECK as per Appendix N Inspect and glue in logbook as a record 4 i vt 0 LL OP OO POA OC OHO HF HPO OOD O 3 VNNMMMMMMMMMMMMV bh 4 qe MN U MN P Ke KL d i e r D d NNNNNNWMMAM MM APPENDIX N SYSTEM TESTING GENE
34. tem works and gives some details of special operational parameters that may be selected during system setup For a full description of each parameter refer to Section 6 For easy reference see the laminated 1 page 2 sides SYSTEM SUMMARY CARD Sangre eee e mmama a a O 2 1 GR 526 510 CONSOLE PRIMARY FEATURES Primary features are Bright graphics Console Display for the display of messages alarms etc RED push button marked ALARM used during a Radiation alarm YELLOW push button marked STATUS used for other user functions Internal AUDIO buzzer referred to as AUDIO BUZZER CLEAR ENTER RUN STOP special function keys used in Maintenance and System Set Up and a 10 key numeric keyboard 0 9 2 ARROW keys for parameter selection Internal PRINTER for hard copy of alarms external Printer support if required Internal MODEM for Remote Maintenance access by telephone fine Special output for control of external TRAFFIC LIGHTS special data output RS 232 permitting external data processing Note that the system can be operated by ANY user by using ONLY THE RED BUTTON as the other buttons are primarily for changing system parameters i ss 2 2 POWER SWITCH The YELLOW power switch is located inside the system console and can be reached from the lower right hand access door Access to the power switch has deliberately been made difficult to minimize the chance of unauthorized personnel interfering with system operation DEE A
35. that can be expected to be in the scrap stream and compensate for most logistic limitations commonly seen in scrap handling facilities The GR 526 510 offers the highest level of sensitivity ease of use and system reliability of any scrap metal radiation monitor through the following features Very large Polyviny toluene PVT plastic detectors Easy user interface via the large Graphics display plus printer output One button Alarm response for the user Continuous automatic system self diagnosis with user notification Redundancy of key system components Tele Check with full performance data analysis service support via built in modem Extensive Exploranium Service Centre support for customer questions FREE software updates to continuously improve performance II 1 2 GR 526 510 SYSTEM DESCRIPTION General The GR 526 510 Radiation Detection System consists of a system console and two detector boxes maximum 8 detector boxes for special applications The detectors are usually mounted at the entrance to a truck or rail scale The system console can be mounted in the scale house or any other convenient indoor monitoring location Radioactive sources both naturally occurring and man made emit Gamma rays that are absorbed by the detectors and produce scintillations small flashes of light which are converted to pulses in the detector electronics The system console collects and monitors the Gamma ray informati
36. ure of some components please discuss with the Service department if this occurs Dnnnpnnnopnpopoppneoppnpopnnpnpoprt gt om me a myom i i o gt e i LI Pa IU UU UU UU UU VU UU UU UU UU ON OD vw r
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