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VALUEGEN® - GTR Labs, Inc.

1. J4 m GND 1 PREP 2 JJ EXP 3 E i L HIM Figure 3 6 Handswitch Footswitch Connections Interlocks Connect Door and Collimator Interlocks to the J4 Terminal Block on the BBU pcb Refer to Figure 3 7 Input to the GCU is through the access hole on the Bottom Panel Refer to Figure 1 6 in Chapter 1 All connections must be a dry contact No Voltage to ground F Faerie COLLIMATOR 5 DOOR 6 Figure 3 7 Interlock Connections you must enable them in Chapter 4 Setup gt NOTE Interlocks are disabled from the factory If you use them Copyright 2007 GTR LABS Inc 26 VALUEGEN TECHNICAL MANUAL AEC Connect Ion Chambers to input connectors on Bottom Panel of GCU Refer to Figure 3 8 p NOTE Ion Chamber selection is based upon configuration programming in Chapter 4 Setup AEC 2 Bucky 2 AEC 1 Bucky 1 AEC 3 No Bucky Bottom Panel Figure 3 8 AEC Ion Chamber Connections NOTE The AEC circuitry ts compatible with positive slope Ion Chambers only NOTE AEC is active only if the specific option is installed Auxillary Relay An Auxillary Relay is provided on the SPB pcb This relay may be used to switch on power to other devices in the x ray room ie table tube stand etc Two sets of normally open contacts are provided at J3 on the SPB pcb refer to Figure 3 9 These contacts close after a normal power up sequence NOTE The maximum rating for the relay conta
2. 10 until the Bky 1 and Bky 2 LEDs are not illuminated Select 50 kVp the smallest mA station programmed and 25 secs on the Time Display Make an exposure and observe the Buckys connected to the generator The Buckys should not oscillate and the exposure should occur normally AEC Density One of the LEDs in the AEC Density Display should be illuminated Press AEC Density Up and AEC Density Down 9 The LEDs should indicate a full range between 2 to 2 Density AEC Reset 600 MAS Limit Select 50 kVp the maximum mA programmed and a backup Time to exceed 600 MAS i e if 300 mA then 2 5 sec NOTE If your x ray tube will not allow a technique that will exceed 600 MAS ignore this step Close the collimator Make an exposure and observe that the AEC Reset LED illuminates and flashes While flashing PREP and EXP are inhibited Press the AEC Reset push button 14 and the LED ceases to flash and is extinguished AEC Field Select Press and release FIELD 13 switches to select or de select the appropriate field The LEDs will illuminate to indicate field selection Exposure Factor Tests kVp mA The following tests will determine the accuracy of the three factors involved in an x ray exposure kVp mA and Time Monitor the kVp and mA Test Points with a dual trace storage oscilloscope for the following tests refer to Figure 6 2 Select 1 V division and 10 ms Monitor the kVp with Channel 1 and the mA with Channel 2 Trigger
3. 40C to 65C Relative Humidity Range 20 to 80 non condensing Atmospheric Pressure Range 15 meters to 10000 meters Operation Conditions This equipment is designed to work within a temperature range of 20 C to 30 C with a relative humidity non condens ing less than 60 Atmospheric Pressure Range 15 meters to 3000 meters x gt CAUTION Provide adequate filtration if the generator is installed in a high dust or particulate matter environment Radiation Warning WARNING X rays are dangerous to operator unless established safe exposure procedures are observed Copyright 2007 GTR LABS Inc VALUEGEN TECHNICAL MANUAL 5 The useful and scattered beams can produce serious or fatal bodily injuries to any persons in the immediate or sur rounding area Adeguate precautions should be taken to avoid exposure to the central beam or to scattered radia tion Persons authorized to operate the eguipment should be familiar with the established safe exposure factors and pro cedures Chapter 1 Specifications Ratings CAUTION For proper operation on a Single Phase or Three Phase Line it is recommended that you have 220 VAC 5 10 50 60Hz Voltage Requirements 220 VAC 5 10 Circuit Breaker Size 100 Amps Wire Type Stranded Copper Wire Size 2 Wire for runs less than 50 feet 0 Wire for runs more than 50 feet Power Line Impdeance 0 30 Ohms or less V 10 25 to 200 mA V 20 V 325 25 to 300 mA V 30 V
4. AEC 1 Bucky 1 J3 Auxillary Filament Line Feedback Operator s Console P1 P2 Cable J9 Buckys and Rotor Figure 1 8 Chassis Bottom View Figure 1 11 System Power Board Copyright 2007 GTR LABS Inc VALUEGEN TECHNICAL MANUAL 15 1 amp fuse IPM connectors Status LEDs 240 VAC Filament Interface to HVT Ribbon to BBU VM Ribbon connector to BBU Figure 1 12 TEC Thermionic Emission Controller Figure 1 13 IPM Driver HV Tank Filler Plug Ground P1 P2 Cover P1 P2 P1 P2 a a EL pa T HV Sockets VE re m A z Anode Cathode Figure 1 14 HV Tank Top View Figure 1 15 HV Tank Side View Copyright 2007 GTR LABS Inc 16 VALUEGEN TECHNICAL MANUAL Chapter 2 Installation Site Preparation The following factors should be considered when selecting a site for installation of the Cabint Environment This equipment is designed to work within a temperature range of 20 C to 30 C with a relative humidity non con densing of less than 40 Proximity to Mains Disconnect L1 L2 L3 connections should be as short as possible in order to minimize line drop during an exposure NOTE If less than 15 use 6 stranded wire from Mains Disconnect gt to F1 F2 F3 If greater than 15 use 4 stranded wire Consult Local Electrical Code for the proper wire size between Mains Disconnect and Source WARNING For proper operation of the generator yo
5. as long as the Console is on and there are no errors If an error occurs in addition to the Error Code being displayed in the kVp Display of the Operator s Console the Blue Watch Dog LED will blink the number of times corresponding to the Error Code Power On Switch on the wall disconnect The Blue Watch Dog LED should illuminate steady for approximately 2 to 4 seconds and then go out This indicates a normal power up sequence for the processor WARNING DANGER When the wall disconnect is switched on 208 VAC stand by power is present on the SPB pcb even if the Operator s Console is switched off Lethal voltages are present on the pcb and care should be taken to avoid electrical shock Copyright 2007 GTR LABS Inc 30 VALUEGEN TECHNICAL MANUAL mre ER Tier ALD On Off Pushbutton Figure 4 2 Operator s Console Momentarily press the On Off push button switch on the front of the Operator s Console Do not hold the switch down Press and release There will be a slight delay during which the microprocessors are initializing Then you will hear an audible tone and the displays on the Operator s Console will illuminate The Blue Watch Dog LED on the BBU pcb will illuminate and stay on This indicates a normal Power Up sequence If this does not occur read the Error Code on the kVp Display of the Operator s Console and refer to Chapter 7 Diag nostics During a normal Power Up sequence the generator initializes the
6. 2 kVp Time Exposure Time is a function of measuring two corresponding points on the kVp waveform The exposure time begins at the 75 point on the leading edge of the kVp waveform and ends at the 75 point on the trailing edge of the kVp waveform Copyright 2007 GTR LABS Inc 54 VALUEGEN TECHNICAL MANUAL Time Time Time Time Displayed Measured Displayed Measured Table 6 2 Time Measurements Select 70 kVp 100 mA and 2 milliseconds on the Time Display 002 Make an exposure and measure the length of the kVp waveform on the oscilloscope Record that value in the corresponding box in Table 6 2 Advance to the next Time station and repeat the procedure Continue until you have entered a value for each Time Station in Table 6 2 NOTE As you advance in time you will have to change the time base on the oscilloscope to present the entire kVp waveform on the oscilloscope display Compare the values you have recorded in Table 6 2 with the following specification for Time accuracy Time accuracy 0 002 Sec to 0 010 Sec 0 5 ms 0 015 Sec to 0 035 Sec 1 5 ms 0 050 Sec to 0 100 Sec 3 0 ms 0 125 Sec to 6 0 Sec 3 Reporting Report any difficulties you encounter during Compliance Testing to the manufacturer GTR LABS Inc 510 Elk Street Gassaway WV USA 26624 Telephone 304 364 2211 Copyright 2007 GTR LABS Inc VALUEGEN TECHNICAL MANUAL 55 Chapter 7 Diagnostics Overview
7. 425 25 to 400 mA V 40 V 550 25 to 500 mA V 50 V 650 25 to 600mA 2ms to 6 seconds Table 1 1 Technique Ranges kVp 40 to 125 V 10 20 30 V 325 425 In steps of 1 kVp 40 to 150 V 40 50 V 550 650 mA Copyright 2007 GTR LABS Inc 6 VALUEGEN TECHNICAL MANUAL Table 1 1 Technigue Ranges Technigue Factors for maximum line current Radiographic 20 kW 100 kVp 200 MA gt 20 ms 30 kW 100 kVp 300 mA gt 20 ms The radiographic duty cycle can be one average exsposure every 30 seconds Mor specifically 300 mAs per minute ie one 150 mAs every 30 seconds or 600 mAs every two minutes Methodology used to measure actual technique factors The kVp and mA is measured as the aveage of the top of the waveform The exposure time is measured from 75 of rise and fall of the kVp waveform 5 sec Table 1 1A Maximum Technique Selections V 10 5 sec Table 1 1B Maximum Technique Selections V 20 V 325 i 325 Copyright 2007 GTR LABS Inc VALUEGEN TECHNICAL MANUAL rm 5 sec Table 1 1C Maximum Technique Selections V 30 V 425 1 425 5 sec Table 1 1D Maximum Technique Selections V 40 V 525 V 550 Copyright 2007 GTR LABS Inc 8 VALUEGEN TECHNICAL MANUAL Table 1 1E Maximum Technique Selections V 50 V 650 Configuration Operator s Console There are 3 Operator s Consoles that are available with the VALUEGEN family of generators They are Standard Operator s Console
8. Dog indication Prohibit Exposure Sequence Possible Causes Defective SPB pcb Corrective Action Replace SPB pcb Error Code OPC E31 Description 9 o HU over 859 o Resets on Power Up Sequence System Indication Complete lock up of Operator s Console func tions No Watch Dog indication Prohibit Exposure Sequence Possible Causes X Ray Tube Anode overheated Corrective Action Wait for X Ray Tube Anode to Cool Error Code OPC E32 Description Sync Missing or Incorrect Resets on Power Up Sequence System Indication Complete lock up of Operator s Console func tions No Watch Dog indication Prohibit Exposure Sequence Possible Causes Defective SPB pcb Corrective Action Replace SPB pcb Copyright 2007 GTR LABS Inc 60 VALUEGEN TECHNICAL MANUAL Trouble Shooting Tips This section contains information to assist the service technician in trouble shooting the generator The information presented is in order of descending importance The most likely cause is first and the next likely cause is second etc NOTE The Possible Causes and Corrective Actions mentioned in this section DO NOT represent all of the factors that may apply to any given situation presented here System will not come on when On Off pushbutton on the Operator s Console is pressed Possible Causes Incorrect or missing 208 VAC applied to GCU Blown Fuses 208 VAC on SPB pcb Incorrect or missing 12 VDC from SPB
9. Part Number 6065 00 APR Operator s Console Part Number 6072 00 Refer to the illustrations below to determine the Operator s Console with your system APR Operator s Console Part Number 6072 00 Copyright 2007 GTR LABS Inc VALUEGEN TECHNICAL MANUAL various aspects of the Operator s Console These include the 5 NOTE Throughout the Technical Manual references are made to reconfiguration of displays during Setup Chapter 4 Calibration Chapter 5 and Compliance Chapter6 Familiarize yourself with the specific Operator s Console supplied with your system and take note of it s characteristics 1 Rag a E 2 18 1 E VALLEGE MN 16 15 14 13 12 11 Figure 1 1A Standard Operator s Console Front View 20 19 Figure 1 1B Standard Operator s Console Rear View kVp Display mA Display Time Display mAs Display kVp Up Down mA Up Down Time Up Down mAs Up Down AEC Density Up Down 10 BKY Select 11 EXP 12 PREP V NGUI RUNH AEC Field Select AEC Reset Overload LED Collimator LED Interlock LED On Off Hand Switch Connector Copyright 2007 GTR LABS Inc 10 VALUEGEN TECHNICAL MANUAL Figure 1 1A APR Operator s Console Front View 19 20 Figure 1 1B APR Operator s Console Rear View 19 Hand Switch dod da 10 BKY Select mA Display 11 EXP A SML Time Display 12 PREP Store 22 APR Se
10. Service Push Button on the BBU pcb and turn on the Wall Disconnect 4 Hold the Service Push Button for approximately 2 seconds then release 5 When the Blue Watch Dog LED goes out turn on the genertor WARNING At this point you will have returned all of the Setup Locations to their factory default settings including calibration Do not attempt to make an exposure until you have completed the steps detailed in Chapter 4 and Chapter 5 Failure to follow this WARNING may result in damage to the equipment and or failure of the x ray tube 6 Press the Service Push Button on the BBU pcb You will now be in the SERVICE Mode All of the Setup Loca tions will be reset to Factory Default values Copyright 2007 GTR LABS Inc You must VALUEGEN TECHNICAL MANUAL complete all of the steps in Chapter 4 Setup and cali brate the generator according to instructions in Chapter 5 Calibration 7 Exit the SERVICE Mode bypressing the Service Push Button on the BBU pcb The generator should return to normal operation with no error codes displaved on the Operator s Console Error Code OPC E17 Description Voltage Monitor Fault Error Resets on Power Up Sequence System Indication Complete lock up of Operator s Console func tions No Watch Dog indication Disconnects 208 VAC Switched on SPB Possible Causes Failure in Pre Charge circuit Failure in Charge circuit No Voltage on Buss at End of
11. an exposure and observe the Bucky connected to Bky 1 The Bucky should oscillate and the exposure should occur normally Bucky 2 Press the BKY switch 10 until the Bky 2 LED is illuminated Select 50 kVp the smallest mA station programmed and 25 secs on the Time Display Make an exposure and observe the Bucky connected to Bky 2 The Bucky should oscillate and the exposure should occur normally No Bucky Press the BKY switch 10 until the Bky 1 and Bky 2 LEDs are not illuminated Select 50 kVp the smallest mA station programmed and 25 secs on the Time Display Make an exposure and observe the Buckys connected to the generator The Buckys should not oscillate and the exposure should occur normally AEC Density One of the LEDs in the AEC Density Display should be illuminated Press AEC Density Up and AEC Density Down 9 The LEDs should indicate a full range between 2 to 2 Density AEC Reset 600 MAS Limit Select 50 kVp the maximum mA programmed and a backup Time to exceed 600 MAS i e if 300 mA then 2 5 sec NOTE If your x ray tube will not allow a technique that will exceed 600 MAS ignore this step Close the collimator Make an exposure and observe that the AEC Reset LED illuminates and flashes While flashing PREP and EXP are inhibited Press the AEC Reset push button 14 and the LED ceases to flash and is extinguished AEC Field Select Press and release FIELD 13 switches to select or de select the appropr
12. approximately 3600 RPM the filament is boosted to the correct temperature all the interlocks are checked including the rotor interlock and the Pre Charge and Charge seguences are initiated If you have selected 50 or 60 for Pre Set 2 22 you may select a Rotor Boost Time Using the Up Down push buttons for the mAs Display scroll through the Pre Set s until you have 2 23 displayed on the mAs Display The Factory Setting for this Pre Set is 1 7 sec Select a value for Rotor Boost Time NOTE The minimum value is 1 7 sec This is the minimum time necessary for the filament temperature to stabalize when chang ing from Standby to the mA Station selected for exposure Interlock Selection The generator provides for two independent interlocks with LED Displays on the Operator s Console They are Collimator Interlock and Door Interlock In addition there is a Thermal Interlock for the X Ray Tube NOTE For Tube Thermal Interlock Collimator Interlock and Door Interlock you have two choices on the Time Display 0 or 1 0 disabled 1 enabled Tube Thermal Interlock If you have connected a Thermal Interlock for the X Ray Tube to J9 pin 9 on the SPB pcb refer to Figure 3 5 select a 1 for Pre Set 24 If not select a 0 Collimator Interlock If you have connected a Collimator Interlock to J4 pin 5 on the BBU pcb refer to Figure 3 7 select a 1 for Pre Set 25 If not select a 0 Door I
13. in memory In the APR Mode with the Centimeter Display illuminated pressing any pushbutton on the right side of the console will automatically put the console in the Manual Mode Change Individual Techniques To change any of the individual techniques stored in any of the APR Selection locations use the following procedure Press and hold the STORE pushbutton 21 on the APR Operator s Console While holding this pushbutton select the anatomy region ie Chest the view ie AP the Centimeter Thickness 23 kVp mA Time mAs and any optional equipment installed ie Bucky 1 AEC Field 2 Release the STORE pushbutton and observe that the decimal point in the Centimeter Display illuminates momentarily to indicate storage of the technique This technique is now permanently stored in the selection you have made affect any of the other techniques stored in the APR Operator s Console MD afiect Storing a specific technique in this manner does not Change Stored Techniques Globally Version 2 0 of the Human Anatomical Console APR software adds the capability to automatically change the stored technique factors for increased or decreased film density Incremental changes of approximately 0 3 optical density OD can be made by console pushbutton combinations All stored technique factors can be changed at once or all thicknesses for one view can be changed at once A change of approximately 0 9 OD is equivalent to doubling
14. in the Control Booth The 25 7 5 meter Intercon necting Cable connects between the rear of the Operator s Console and the bottom panel of the GCU Interconnection Interconnection of the generator consists of three cables supplied with the generator P1 P2 Cable This consists of 2 8 Red Wires and a 8 Green Yellow Ground Wire with one end already attached inside the GCU It Copyright 2007 GTR LABS Inc 18 VALUEGEN TECHNICAL MANUAL is packed coiled against the bottom panel of the GCU 6 round terminals are attached to the open end of the cable for connection to the P1 P2 and Ground studs on the HV Tank The ground wire attaches to the Ground stud Connect the other two wires to P1 and P2 The order is not critical CAUTION P1 P2 connections are brass studs It is possible to strip the threads on these studs or break them if you over tighten the locknuts Do not use excessive force when tightening these connections Interface Cable The Interface Cable connects the HV Tank to the GCU It consists of a 30 80 cm cable with a single connector on the HV Tank end and two 2 connectors on the GCU end Refer to Figure 2 4 Connect the single connector to the HV Tank At the GCU connect the 4 conductor round connector to the Filament connector on the Bottom Panel Connect the 9 pin D Sub connector to the Feedback connector on the Bottom Panel Figure 2 4 Interface Cable Interconnecting Cable Route the 25 7 5
15. meter Interconnecting Cable from the Bottom Panel of the GCU through conduit or trough to the Control Booth One end connects to the rear panel of the Operator s Console and the other end connects to the Bottom Panel of the GCU Hand Switch If your generator includes an optional Hand Switch connect it to the rear of the Operator s Console refer to Fig 1 1B 1251 This is a two position Hand Switch The first position is PREP and the second position is EXP These switches are in parallel with the PREP and EXP push buttons on the Operator s Console Figure 2 5 Hand Switch Copyright 2007 GTR LABS Inc VALUEGEN TECHNICAL MANUAL 19 Chapter 3 Interface Mains Single Phase 220 VAC V 10 20 30 V 325 425 Connect 220 VAC 5 10 50 60Hz 1 Phase to F1 F2 in the GCU from Mains Disconnect Refer to Figure 3 1A Input to the GCU is through the access hole on the Bottom Panel Refer to Figure 1 6 in Chapter 1 NOTE If less than 15 use 6 stranded wire from Mains Disconnect to F1 F2 If greater than 15 use 4 stranded wire by a separate 8 conductor The neutral side of the line is not to be considered the earth ground 99 ov separ The equipment must be grounded to an earth ground Figure 3 1A F1 F2 Location 3 Phase 220 VAC V 40 50 V 550 650 Connect 220 VAC 5 10 50 60Hz 3 Phase to F1 F2 F3 in the GCU from Mains Disconnect Input to the GCU is through the access hole on the Bottom Panel Refer to Figur
16. of the installer to inspect carefully prior to the first application of power Failure to follow this step could result in damage to the generator as well as injury to personnel Copyright 2007 GTR LABS Inc VALUEGEN TECHNICAL MANUAL 17 HV Tank The High Voltage cable wells are covered by red plastic plugs Remove the plugs and ensure that the wells are clean and free of any contaminant Inspect the sides of the tank They should be smooth and without indentations Inspect the pins on the Interface Connector Remove any residue that may have accumulated during shipping Ensure that all the pins are straight Remove the cover protecting P1 P2 and inspect the brass studs Note the presence of the proper mounting hard ware Cabinet Inspect the cover of the Cabinet It should be smooth without any indentations other than the air vents Operator s Console Unwrap and inspect the Operator s Console The plastic case should be solid and without cracks or scratches The graphic overlay should be without blemish and you should be able to see each of the 7 segment LED displays through the green filters on the display windows The rear panel should be intact with the connector for the Interconnecting Cable and the Hand Switch Mechanical Installation Wall Mount Bracket WARNING The Cabinet is not free standing If sited so that the bottom shelf is flush with the floor you must use the two top mounting holes to secure the Wall Mo
17. on Channel 1 kVp Cumulative 1 V 32 kVp kVp Anode 1 V 28 kVp kVp Cathode 1 V 28 kVp mA Cumulative 1 V 133 MA b NOTE The oscilloscope must have a current calibration sticker attached Copyright 2007 GTR LABS Inc 52 VALUEGEN TECHNICAL MANUAL Cumulative kVp Test Point Cumulative mA Test Point GND Figure 6 2 kVp and mA Test Points 110 kVp E A ma i TT Pa Insert the mA stations selected for this installation in Table 6 1 mA Station 60 kvp 90 kVp NA NN 1 N AAAAAAAN 2 NOSN eee Table 6 1 kVp mA Measurements Copyright 2007 GTR LABS Inc VALUEGEN TECHNICAL MANUAL 53 Select the lowest mA station the generator has been programmed for during Setup Select 60 kVp Select a time which will allow you to capture the exposure length on the oscilloscope Make an exposure and record the mA and kVp in Table 6 1 Use the following convention Select 90 kVp Make an exposure and record the mA and kVp in Table 6 1 Select 110 kVp Make an exposure and record the mA and kVp in Table 6 1 mA kVp Repeat this procedure for each mA station listed in Table 6 1 gt NOTE You may have to change the scale on the oscilloscope at the higher mA values Take care to read the mA correctly Compare the values you have recorded in Table 6 1 with the following specifications for mA and kVp accuracy mA accuracy 8 5 MA kVp accuracy 8
18. pcb Blown Fuse 12 VDC from SPB pcb Incorrect or missing 5 VDC Regulated from SPB pcb Blown Fuse 5 VDC Regulated on SPB pcb Interconnecting cable missing or defective GCU Operator s Console Defective BBU pcb Defective Operator s Console IPM Fault occurs at higher KW settings only Possible Causes Low 208 VAC Line Voltage AC Line Collapse during exposure Acronyms Parts List PS c Figure S 1 Parts List Generator Control The chassis housing the electronics Unit for the generator High Voltage Source of High Voltage and Filament Transformer Supply for the x ray tube System Power Provides interface for 208 VAC Board Charge and Discharge and Rotor Thermionic Emission Controller filament IPM Intelligent Power High Frequency Switching Module Module which includes the IPM Driver pcb Source of supply for x ray tube Figure S 2 Acronym Chart Copyright 2007 GTR LABS Inc
19. set point manually At each of these points he can make exposures and adjust the Filament Number manually In the AUTOCAL mode the Service Engineer selects each programmed mA station manually and the generator operat ing system makes exposures and adjusts the Filament Number automatically for each kVp set point The generator is shipped in the Manual Calibration mode DIP1 4 on the BBU pcb is in the OFF position refer to Figure To delect the AUTOCAL mode move DIP1 4 to the ON position You may switch between Manual Calibration and AUTOCAL at any time during the Calibration procedure Copyright 2007 GTR LABS Inc VALUEGEN TECHNICAL MANUAL 41 NOTE You should monitor the Cumulative kVp and mA test points during the calibration seguence Take note of any irregularities in either waveform and note the values indicated CAUTION If you encounter any difficulty during the calibration sequence refer to Chapter 7 Diagnostics for assistance Filament Pre Set kVp Setpoint mA Station Number mE mapu M ret kVp Setpoint Pre Set Adjust Adjust Filament Adjust Figure 5 2a Standard Operator s Console Calibration Configuration Copyright 2007 GTR LABS Inc VALUEGEN TECHNICAL MANUAL 40 so 70 100 120 smena I OLUJ Low ewe LIU Lm pem I LU ee oe a Lov emm ae lO b sun IU s mna NN sa wem mee I LU ud LU ss Table 5 1 Calib
20. the Time Display allows you to change the value in memory for that Pre Set CAUTION The value displayed on the Time Display is the value in memory for that Pre Set Take care not to accidently change any of the values Copyright 2007 GTR LABS Inc VALUEGEN TECHNICAL MANUAL 33 Displays Displays MA when Displays Pre Set Displays kVp reguired is 5 when required Scrolls Forward amp Reverse Figure 4 6 APR Operator s Console SERVICE Configuration X Ray Tube Selection When you enter the SERVICE Mode the first Pre Set which appears in the mAs Display is the X Ray Tube Selection 200 The Factory Setting for this value as displayed in the mA Display is 0 With a 0 showing in theTime Display you have the default x ray tube selected This tube is a generic tube used for testing and shipping Do not leave this setting at 0 Select the x ray tube you are using from Table 4 2 If your tube is not listed on the table select a tube with similar filament characteristics WARNING If the x ray tube you are using is not listed in Table 4 2 and there is no tube in the table with similar filament characteristics do not proceed Tube protection is only available with the tubes listed in Table 4 2 or tubes with similar filament characteristics Failure to heed this WARNING may result in catastrophic failure of the x ray tube Use the Up Down push buttons for the Time Displa
21. 0 a som ima rema ston om O oe rema sm tf EINNUCCOID NSNNC NN NNNM oes weasel Coe M zoma OE O Cor NE ef OOOO oe nast ESS ES oes 9emsmewe ef os ona ston som ef a mememense os nai omo 3 0 a3 see ums ef DEC wowee I Cas MT II DEC ME NT CNN RN DEC en ON CNN RS renie NS renie es tn ES ES ae ne m rr om I C renie 08 as norr RS e ME 08 ECNNNNCTT TT RN NN RN Table 4 1 Pre Set Number Selection Only available on the i 325 425 if the option is installed If the option is not in stalled these numbers will not move 125 kVp for the i 325 425 1 7 sec for the i 325 425 Copyright 2007 GTR LABS Inc 31 32 VALUEGEN TECHNICAL MANUAL With the generator on and no Error Codes showing on the Operator s Console momentarily press the Service Push Button Refer to Figure 4 5 Service Push Button P i m 2 BBU pcb Figure 4 5 Location of SERVICE Push Button This puts the generator in the Set Up mode The mAs Display on the Operator s Console becomes the Pre Set Display The first character will display this symbol Refer to Figure 4 6 Pressing the Up Down push buttons associated with the mAs Display allows you to scroll forward and reverse through the Pre Set selections The selection values associated with each individual Pre Set are displayed on the Time Display Pressing the Up Down push buttons associated with
22. 0 kW This manual is shipped with generator Model Serial Z With Software Version Safety Mechanical Electrical Warning All of the electronic assemblies and parts of this equipment should be operated with care and routinely inspected in accordance with the manufacturer s recommendations Only properly trained and qualified personnel should be permitted access to any internal parts Live electrical terminals are LETHAL Be sure line disconnect switches are opened and other appropriate precautions are taken before removing covers or attaching accessories Do not remove the flexible high tension cables from the x ray tube housing or high tension generator and or the access covers from the generator until the main and auxiliary power supplies have been disconnected WARNING Failure to comply with the foregoing safeguards may result in serious or fatal bodily injuries to the operator or those in the area WARNING This product is not to be used in the presence of flammable anesthetics Electrical Grounding Instructions En WARNING The equipment must be grounded to an earth ground by a separate 8 conductor The neutral side of the line is not to be considered the earth ground NOTE This is Type B Equipment which employs both insulation protection and protective earthing to reduce the risk of electric shock to product users vironment Storage and Transportation conditions Ambient Temperature Range
23. D 1 HN E a a 5 E L1 m External Exposure 8 Indication Figure 3 11 External Exposure Indication High Speed Starter Interface A High Speed Starter Interface is provided in the V 40 50 and V 550 650 generators not connect the Rotor to TB 1 Connect the Rotor as indicated in the High Speed Starter Technical Manual gt NOTE If a High Speed Starter is connected to the generator do have High Speed Rotor capability you will not be able to select a NOTE If you select an x ray tube in Pre Set 00 that does not 1 for Pre Set 22 The interface for the High Speed Starter in on connector J3 of the AEC HSS pcb Refer to Figure 3 12 The signals and their descriptions are according to Table 3 1 SIGNAL DESCRPTION Open Collector Output HSSGO J3pin 1 Pulled low on PREP if Pre Set 22 set to 180 Open Collector Output High Speed Requested Pulled low on PREP if Pre Set 22 set to 180 GND J3pin 3 Ground Connection HSS Opto Coupled Input HSSGO PEINE Apos Pulled low for Rotor Interlock Table 3 1 High Speed Starter Connections HS INT HSSHI J3 pin 2 GNE Copyright 2007 GTR LABS Inc VALUEGEN TECHNICAL MANUAL 29 Chapter 4 Setup Overview This chapter covers the initial Power On Test selecting the mA Stations initializing all preset variables and testing the Filament in the OFF position This disables the drive to the TEC pcb as well as the Pre Charge and Charge rel
24. Display there are three 3 numbers which will be displayed Not Programmed or Not Available Progammed on Small Filament Programmed on Large Filament Small mA Station Selection Review the factory settings in Table 4 1 If the settings are ok no further action is required If you wish to make a change in any of the selections use the following procedure With the Setup Location for the mA station showing in the mAs display select the desired programming in the mA display Your options are 0 Not Programmed or Not Available 1 Progammed on Small Filament 2 Programmed on Large Filament Large mA Station Selection Review the factory settings in Table 4 1 If the settings are ok no further action is required If you wish to make a change in any of the selections use the following procedure With the Setup Location for the mA station showing in the mAs display select the desired programming in the mA display Your options are 0 Not Programmed or Not Available 1 Progammed on Small Filament 2 Programmed on Large Filament Filament Standby Number The generator has the capability of adjusting the standby current through the large and small filaments independently of each other The filament standby current is adjusted by increasing or decreasing the number displayed on the Time Display of the Operator s Console during Set Up This number does not directly correlate to an actual amount of filament current It is subjective and t
25. Mode press simultaneously the STORE and CM UP pushbuttons This will store the techniques you have programmed into the console on the EEPROM The decimal point in the CM Display will illuminate during transfer With the generator in the Service Mode press simultaneously the STORE and CM DOWN pushbuttons This will transfer the techniques stored in the EEPROM back into the console The decimal point in the CM Display will illuminate during transfer If you experience a console failure and have to replace the console and you have previously stored the altered techniques in the EEPROM you may take the EEPROM out of the failed console and install it in the new console and exectue a STORE CM DOWN function in the service mode to restore your techniques in the new console AEC Mode The AEC Mode is applicable if the generator has the AEC Option installed The AEC Mode is used in conjunction with the Manual Mode or the APR Mode The AEC Mode is indicated by one or more of the FIELD LEDs 13 being illuminated AEC Mode with Manual Mode The Operator must select a Backup Time of sufficient lenght to exceed the expected exposure time using AEC Itis suggested that this Backup Time be at least 2 times the expected exposure time AEC Mode with APR Mode None of the APR Selections contain AEC from the factory even if the AEC option is installed All of the stored techniques are based upon the Technique Chart in Appendix 1 of this manual If the operat
26. Prep Corrective Action Replace Charge Resistor Replace SPB PCB Error Code OPC E18 Description GPU Not Responding Error Will not reset System Indication Complete lock up of Operator s Console func tions No Watch Dog indication Possible Causes BBU pcb Failure 12 VDC Regulated incorrect or missing 5 VDC Regulated incorrect or missing Corrective Action Replace BBU pcb Check voltage test points on BBU pcb Check fuses on SPB Replace SPB pcb Error Code OPC E19 Description kVp Drop During Exposure Resets on Power Up Sequence System Indication Complete lock up of Operator s Console func tions No Watch Dog indication If you monitor with an oscilliscope you will observe that the selected kVp is correct at the beginning of the exposure but drops several milliseconds into the exposure to 50 or less Possible Causes High Impedence Short in X Ray Tube Carbon Track in Cable Wells Tube or Trans former 59 Shorted IPM IPM Driver OptoCoupler Failure Flux Capacitor Failure Corrective Action Look for bubbles in X Ray Tube oil Check Cable Wells Tube and Transformer Check IPMs Remove output leads and check with ohmme ter from output terminal to each of the other two terminals Replace IPM Driver Replace Flux Capacitor Error Code OPC E20 Description Voltage on Capacitors in Stand By Resets on Power Up Sequence System Indication Complete lock up of Operator s Console func tions No Watch
27. R CONNECTION BUCKY 1 ground NO VOLTAGE Any voltage on this input will result in WARNING The Bucky Motion Inputs must be a contact to P damage to the equipment 240 VAC A SP B BUCKY MOTION 240 VAC B BUCKY MOTIOUN SWITCH BUCKY MOTION CONNECTION BUCKY 1 ground NO VOLTAGE Any voltage on this input will result in damage to the equipment 8 srouna c The Bucky Motion Inputs must be a contact to Copyright 2007 GTR LABS Inc 24 VALUEGEN TECHNICAL MANUAL Rotor Connect the Rotor to J9 Terminal Block on the SPB pcb Refer to Figure 3 5 Input to the GCU is through the access hole on the Bottom Panel Refer to Figure 1 6 in Chapter 1 WARNING The Common terminal for the Rotor Rotor COM is connected to one side of the AC Line at all times DO NOT CONNECT AN X RAY TUBE WITH A GROUNDED ROTOR TO THIS SYSTEM Failure to heed this WARNING will result in catastrophic failure of the x ray tube in a very short time GND 1 SPB pcb GND 8 Tube Thermal Interlock 9 Rotor COM 10 Rotor Direct 11 Rotor Phase 12 Copyright 2007 GTR LABS Inc VALUEGEN TECHNICAL MANUAL 25 External Handswitch Footswitch Connect an External Handswitch Footswitch to the J4 Terminal Block on the BBU Refer to Figure 3 6 Input to the GCU is through the access hole on the Bottom Panel Refer to Figure 1 6 in Chapter 1 All connections must be a dry contact No Voltage to ground
28. The Self Diagnostic System of the generator provides accurate detailed information about the functions of the genera tor and attached peripheral equipment This information is presented in the form of numerical Error Codes For the Operator and the Service Engineer these Error Codes are presented on the kVp Display of the Operator s Con sole A table in the Operator s Manual as well as the Technical Manual lists the Error Codes which can be displayed and describes the possible cause of the fault and the action the Operator should take Refer to Table 7 1 for the Error Codes presented on the kVp Display on the Operator s Console If any of the Error Codes listed in Table 7 1 are showing on the display refer to the following information for possible causes and suggested corrective action kVp Display kVp Display CE Fmetbontmen me ET LE Grace wip Faure wont Voltage Monitor Fault GPU not responding to Console kVp Drop during exposure Voltage on capacitors in Standby Table 7 1a Error Codes HU over 85 22 NOTE In this section on Error Codes the following abbreviation is used OPC kVp Display on the Operator s Console Copyright 2007 GTR LABS Inc 56 Error Codes Error Code OPC No Display Description Internal GCU Error No reset System Indication Complete lockup of all system functions No Operator s Console No Watch Dog indication Possible Causes 12 VDC Regulated incorrect
29. VALUEGEN TECHNICAL MANUAL V 525 550 650 2 VALUEGEN TECHNICAL MANUAL Table of Contents Preface 3 External Exposure Indication Warranty 3 High Speed Starter Interface Presentation 3 Chapter 4 Setup Notation 3 Overview Applicability 4 Power On Test Safety 4 Blue Watch Dog LED Environment 4 Power On Radiation Warning 4 Pre Set s Chapter 1 Specifications 5 X Ray Tube Selection Ratings 5 mA Station Selection Configuration 8 Filament Standby Number Operator s Console 8 HV Cable Length Modes of Operation 10 Buckys and AEC Selection Manual Mode 10 Maximum kVp APR Mode 11 Rotor Speed HV Tank 15 Low Speed Boost Time Chapter 2 Installation 16 Interlock Selection Site Preparation 16 Chapter 5 Calibration Unpacking 16 kVp Feedback Test Inspection 16 Calibration Mechanical Installation 17 Manual Calibration Interconnection 17 AUTOCAL P1 P2 Cable 17 AEC Density Adjust Interconnecting Cable 18 Chapter 6 Compliance Testing Hand Switch 18 Overview Chapter 3 Interface 19 Configuration Mains 19 Operator s Console Single Phase 208 VAC i 325 425 19 Standard Operator s Console 3 Phase 208 VAC 19 APR Operator s Console 3 Phase 380 VAC 20 Exposure Factor Tests Buckys 20 kVp mA V RAD SYSTEM BUCKY CONNECTIONS 21 Time SIMPLIFIED BUCKY CONNECTIONS 22 Reporting Rotor 24 Chapter 7 Diagnostics External Handswitch Footswitch 24 Overview Interlocks 26 Error Codes AEC 26 Trouble Shooting Tips Auxillary Relay 26 24 VAC Collimato
30. ays Do not move this switch to the ON position until directed to do so in this manual XD in the OFF The generator is shipped with DIP1 1 on the BBU pcb In addition to the Self Diagnostic functions built into the generator there are several additional safety features One of these is the Diagnostic Interlock This Diagnostic Interlock allows the microprocessors to detect if the HV Tank feedback cable is disconnected On Power Up if the HV Tank feedback cable is disconnected you will have an Error Code E01 displayed on the kVp Dis play of the Operator s Console X gt CAUTION Do not operate the generator with any of the circuit boards the HVT or the Operator s Console disconnected DIP1 1 Figure 4 1 BBU pcb Power On Test NOTE This test presumes you have performed the Inspection and Interconnection steps detailed in Chapter 2 of this manual If you have not performed these steps please return to Chapter 2 and complete them at this time Blue Watch Dog LED The Blue Watch Dog LED on the BBU pcb provides additional information When the Line Disconnect is first turned on the LED will illuminate for approximately 2 to 4 seconds During this time the processor is initializing and you cannot turn on the Operator s Console At the end of this initialization period the Blue Watch Dog LED will go out When you press the On Off Pushbutton on the Operator s Console the Blue Watch Dog LED will illuminate and stay on
31. be you are using take a 15 minute time out to allow the anode to dissipate the accumulated heat AEC Density Adjust Each Ion Chamber connected to generator can be adjusted independently for density and skew There are 6 Pre Set s associated with the AEC Density Adjust procedure 2 for each Ion Chamber Refer to Table 5 3 NOTE AEC is active only if the specific option is installed unless you selected a 1 for Pre Set s 17 18 19 in S NOTE The Pre Set s indicated in Table 5 3 will not be active Chapter 4 Setup The following procedure applies to each Ion Chamber connected to the generator Select 80 kVp and a Back Up Time Select an mA station appropriate for the density phantom you use Select 0 Density on the Operator s Console and Bucky 1 Bucky 2 or No Bucky as appropriate Make an exposure and read the density of the film NOTE You cannot make an exposure in the Service Mode with one of the AEC Pre Set s showing on the Time Display You must exit the Service Mode to make the exposure and re enter the Service Mode to make density and skew adjustments Density Adjust Master Pot on Ion Chamber Up or Down as needed and Make Exposures until you have the desired Density at 80 kVp Tilt Make an Exposure at 50 kVp and 100 kVp and read the Density Adjust the Tilt Number until you have the same Density at 50 kVp 80 kVp and 100 kVp NOTE The Tilt Number cannot be less than the Density Number nor m
32. cts is 8 Amps 250 VAC WARNING For safety and compliance with the National Electrical Code you must provide fuse protection for any voltage switched by this Auxillary Relay Copyright 2007 GTR LABS Inc VALUEGEN TECHNICAL MANUAL 27 J3 4 COM 2 N O 2 COM i NO 1 SPB pcb Figure 3 9 J3 Auxillary Relay Connections 24 VAC Collimator Lamp Power A step down transformer is supplied mounted to the Wall Mount Bracket for 24 VAC Collimator Lamp Power Refer to Figure 3 10 Input power for this transformer comes from the SPB pcb and is present after a normal power up sequence Output power is 24 VAC 8 Amps NOTE The primary connections for the transformer are not connected during shipping They must be connected after the wall mount bracket has been mounted to the wall and the GCU Chassis has been re installed 208 VAC Input Figure 3 10 24VAC Transformer 24 VAC Output External Exposure Indication An open collector output is provided at J4 8 on the BBU pcb for an external exposure indication Refer to Figure 3 11 The output is active low and is present during an exposure sequence The output has a minimum on time of 75 milliseconds WARNING The maximum rating for this open collector output is 30 VDC 100 mA If the device you attach requires a higher rating use this output to energize a relay Copyright 2007 GTR LABS Inc 28 VALUEGEN TECHNICAL MANUAL J4 GN
33. e 1 6 in Chapter 1 NOTE If less than 15 use 6 stranded wire from Mains Disconnect to F1 F2 F3 If greater than 15 use 4 stranded wire by a separate 8 conductor The neutral side of the line is not to 6 WARNING The equipment must be grounded to an earth ground be considered the earth ground Ground Figure 3 1B F1 F2 F3 Location Copyright 2007 GTR LABS Inc 20 VALUEGEN TECHNICAL MANUAL configured from the factory for 380 VAC 3 Phase Operation it will have a Neutral Post The generator must be connected to a 5 wire Y 99 contigu WARNING If your generator is power source 3 phases Ground and Neutral 6 Connection to any other source is not allowed 3 Phase 380 VAC Connect 380 VAC 50 60Hz 3 Phase to F1 F2 F 3 Neutral and Ground in the GCU from Mains Disconnect Refer to Figure 3 1C Input to the GCU is through the access hole on the Bottom Panel Refer to Figure 1 6 in Chapter 1 NOTE If less than 15 use 6 stranded wire from Mains Disconnect to F1 F2 F3 If greater than 15 use 4 stranded wire by a separate 8 conductor The neutral side of the line is not to 6 WARNING The eguipment must be grounded to an earth ground be considered the earth ground F1 F2 F3 Mains Access Neutral Figure 3 1C F1 F2 F3 Location Buckys Connect Bucky or Buckys to J9 Termnial Block on the SPB pcb Refer to Figure 3 2 Input to the GCU is through the access hole on
34. eck Calibration numbers Recalibrate if neces sary Error Code OPC E07 Description No FIL I Error Reset when FILI restored System Indication Complete lock up of Operator s Console func tions No Watch Dog indication Disconnects 208 VAC Switched on SPB Possible Causes Open Small or Large Filament Defective TEC PCB Defective BBU PCB Corrective Action Check Filament Continuity in tube Cathode Cable Input Output Filament Transformer Replace TEC PCB Replace BBU PCB Error Code OPC E08 Description FIL I Too High Error Resets on Power Up Seguence System Indication Complete lock up of Operator s Console func tions No Watch Dog indication Stop PREP sequence in progress Disconnects 208 VAC Switched on SPB Possible Causes Calibration Off Corrective Action Recalibrate Error Code OPC E09 Description Cathode Fault kVp Too High Resets on Power Up Seguence System Indication Stop EXP in progress Complete lock up of Operator s Console func tions No Watch Dog indication Disconnects 208 VAC Switched on SPB 57 Possible Causes High Voltage Arc on Anode side Defective X Ray Tube Defective High Voltage Cable Failure in HVT Corrective Action Inspect for visual evidence of High Voltage Arc Inspect Replace X Ray Tube Inspect Replace High Voltage Cables Inspect Replace HVT Error Code OPC E10 Description Anode Fault mA Too High Resets on Power Up Sequence System Indication St
35. elect a 1 for Pre Set 219 If not select a 0 Maximum kVp The Maximum kVp selectable by the Operator can be programmed during Setup With Pre Set z21 showing in the mAs Display select the Maximum kVp The choices are 99 kVp 125 kVp V10 20 30 and 150 kVp V 40 50 This selection represents the Maximum kVp the Operator will be permitted to select on the Operator s Console during normal operation Rotor Speed You must select the Rotor Speed By selecting 50 for Pre Set z22 you configure the generator for 50Hz Low Speed operation In this configura tion Pre Set z23 becomes a display of Rotor Boost Time By selecting 60 for Pre Set z22 you configure the generator for 60Hz Low Speed operation In this configura tion Pre Set z23 becomes a display of Rotor Boost Time By selecting 180 for Pre Set z22 you configure the generator for High Speed operation In this configuration Pre Set z23 has no function FRS If you select 180 for Pre Set 22 you must have an External High Speed Starter connected to the AEC HSS option pcb and the rotor connections must terminate in the External High Speed Starter not on J9 of the SPB pcb Copyright 2007 GTR LABS Inc 38 VALUEGEN TECHNICAL MANUAL Low Speed Boost Time When you press the PREP push button there is a delay before the green PREP LED illuminates This delay is the Rotor Boost Time During this time the rotor is accelerated to
36. er to Figure 5 2 The mA Display will show the mA Station Press and hold the PREP push button When the green READY LED is illuminated press and hold the EXP push but ton The generator will begin a series of exposures controlled by the operating system The mA value will be sampled and the Filament Number will be adjusted up or down as required This process will continue until the correct mA level is reached for the selected kVp set point The generator will then select the next kVp set point and continue the process This will continue as long as the PREP and EXP push buttons are pressed until the mA value at the last kVp set point is correct The generator will stop making exposures Release the PREP and EXP push buttons and select the next programmed mA station by using the Up Down push buttons for the mAs Display Press and hold the PREP and EXP push buttons to begin the AUTOCAL sequence for the selected mA station Continue this process until you have completed the AUTOCAL sequence for each programmed mA station Copyright 2007 GTR LABS Inc 44 VALUEGEN TECHNICAL MANUAL WARNING During the calibration procedure Manual or AUTOCAL the generator is monitoring 9o Heat Units in the anode of the x ray tube When the Heat Units reaches 85 a pulsed tone will sound continuously Exposures are prohibited while this tone is sounding Should you reach 85 Heat Units during the calibration procedure for the particular x ray tu
37. es all stored techniqeus for each CM station of the selected APR View by approximately 0 3 OD No other factors are changed S NOTE During any of the above procedures the decimal point in the CM Display will illuminate to indicate activity This may take up to 30 seconds During the time the decimal point is illuminated no other operation is allowed Copyright 2007 GTR LABS Inc 12 VALUEGEN TECHNICAL MANUAL NOTE Pressing STORE and AEC RESET Pushbuttons simultaneously will reset all APR stored techniques to factory default Model of the Generator for these new functions to work NOTE The Human APR Console must be set to the corresponding properly Set Model Number For the Version 2 0 software changes of the Human APR Console to work properly you must set the Model Number of the generator as well With the generator in the Service Mode the following displays will indicate the different model numbers Pressing the corresponding pushbutton sets the console for the correct Model Number Chest 10kW C Spine 20kW i 325 L Spine 30kW i 425 Pelvis 40kW Arm 50kW Technique Transfer Version 2 0 and higher of the Human APR Console allows for the internal transfer of technique factors to an EEPROM for storage and recall If you customize your APR Technique settings you can save them for recall on the EEPROM NOTE You must be in the Service Mode to perform operations with the EEPROM Wth the generator in the Service
38. halv ing the film speed Therefore increasing all technique factors by 0 3 three times is equivalent to changing from 400 speed to 200 speed film There are two ways to globally change the techniques stored in the APR Console Memory 1 Change all technique factors stored in memory 2 Change all technique factors for a specific selected anatomical region Change All Technique Factors Stored In Memory Make sure there is no APR view selected no indication in CM Display Press STORE and AEC Density UP Pushbuttons simultaneously the decimal point in the CM display will illuminate to indicate activity This function increases all stored technigue factors by approximately 0 3 OD OR Press STORE and AEC Density DOWN Pushbuttons simultaneously the decimal point in the CM display will illuminate to indicate activity This function decreases all stored technique factors by approximately 0 3 OD Change All Technique Factors For An Anatomical Region Select a specific APR view ie Chest AP or Skull LAT etc Press STORE and AEC Density UP Pushbuttons simultaneously the decimal point in the CM display will illuminate to indicate activity This function increases all stored techniques for each CM station of the selected APR View by ap proximately 0 3 OD No other factors are changed OR Press STORE and AEC Density DOWN Pushbuttons simultaneously the decimal point in the CM display will illuminate to indicate activity This function decreas
39. he adjustment procedure is augmented by visually inspecting each filament and monitoring the FIL I test point on the BBU pcb as you make the adjustment FIL I Test Point Figure 4 7 FIL I Test Point GND Copyright 2007 GTR LABS Inc 36 VALUEGEN TECHNICAL MANUAL The Factory Setting is 200 Since filament characteristics vary from x ray tube to x ray tube it is strongly recommended that you return this value to 200 when replacing an x ray tube S NOTE The range of filament numbers for Standby is 0 to 230 Filament Standby Number adjustment Do not exceed the maximum allowable filament current for the focal spot you are adjusting At the FIL I test point 1 VDC 1 3 Amp Filament Current XD Filament Monitor the FIL I test point on the BBU pcb during Small Filament Standby Number Using the Up Down push buttons for the mAs Display scroll through the Pre Set s until you have 12 displayed on the mAs Display Monitor the FIL I test point on the BBU pcb with a Digital Voltmeter or an oscilloscope 1 VDC 1 3 Am Using the Up Down push buttons for the Time Display increase the Filament Number until the filament begins to il luminate Determine that you are adjusting the Small Filament by visual inspection Continue adjusting the number until the filament is bright enough In no case should the FIL I exceed 2 75 Amps Record this value in Table 4 1 for future reference Large Filament Standby Number U
40. iate field The LEDs will illuminate to indicate field selection Copyright 2007 GTR LABS Inc VALUEGEN TECHNICAL MANUAL 49 APR Operator s Console 1 2 3 4 24 5 6 7 8 AC mimi 10 14 13 12 11 Figure 1 1A APR Operator s Console Front View 20 19 Figure 1 1B APR Operator s Console Rear View 1 kVp Display 10 BKY Select 19 Hand Switch 2 MA Display 11 EXP 20 Connector 3 Time Display 12 PREP 21 Store 4 mAs Display 13 AEC Field Select 22 APR Selections 5 kVp Up Down 14 AEC Reset 23 Centimeter Display 6 mA Up Down 15 Overload LED 24 Centimeter Up Down 7 Time Up Down 16 Collimator LED 25 Film Screen Select 8 mAs Up Down 17 Interlock LED 26 A P Lateral Other 9 AEC Density Up Down 18 On Off the following tests may not be applicable mp a Based upon selections made in Chapter 4 Setup some of Refer to Figure 6 1A amp B for the following tests On Off Press and release the On Off push button 18 on the Operator s Console The system should come on and all LEDs in the five displays should illuminate and the Beep should sound There should not be an Error Code displayed in the kVp Display Copyright 2007 GTR LABS Inc 50 VALUEGEN TECHNICAL MANUAL kVp Display and Up Down There should be a value between 40 and 125 displayed on the kVp Display 1 Press kVp Up and kVp Down 5 The display should increase and decrease mA Display and Up Down There should be an mA
41. inhibited PREP Press and hold PREP 12 The rotor should turn and after the programmed Rotor Boost Time the green PREP LED should illuminate indicating an exposure is possible EXP Select 50 kVp the smallest mA programmed and 1 0 sec Time Press and hold PREP 12 When the green PREP LED illuminates press and hold EXP 11 The red EXP LED should illuminate and an audible tone should sound to indicate an exposure in progress Release EXP before the selected time expires The exposure should stop the red EXP LED should extinguish and the audible tone should stop Press and hold EXP again Another exposure should begin At the end of the selected time the exposure should stop Release PREP and EXP Press and hold EXP only There should be no indication and no exposure Copyright 2007 GTR LABS Inc VALUEGEN TECHNICAL MANUAL 51 BKY Bky 1 Press the BKY switch 10 until the Bky 1 LED is illuminated Select 50 kVp the smallest mA station programmed and 25 secs on the Time Display Make an exposure and observe the Bucky connected to Bky 1 The Bucky should oscillate and the exposure should occur normally Bucky 2 press the BKY switch 10 until the Bky 2 LED is illuminated Select 50 kVp the smallest mA station programmed and 25 secs on the Time Display Make an exposure and observe the Bucky connected to Bky 2 The Bucky should oscillate and the exposure should occur normally No Bucky Press the BKY switch
42. le func tions No Watch Dog indication Disconnects 208 VAC Switched on SPB Possible Causes Loss of Switched 208 VAC From SPB PCB Blown Fuse F 3 Corrective Action Replace Fuse F 3 Error Code OPC E14 Description IPM 1 Fault Error Resets on Power Up Sequence Ensure Ribbon Cable for IPM 1 to J6 on IOP pcb System Indication Stops EXP in progress Disconnects 208 VAC Switched on SPB Complete lock up of Operator s Console func tions No Watch Dog indication Possible Causes AC Line weak or collapsed below 187 VAC Excessive current through IPM 1 Corrective Action Check IPM 1 for short circuit Replace both IPM 1 and the IPM Driver pcb Call Factory Error Code E16 Description Setup Calibration Data Incorrect Will not reset System Indication Checked on Power Up Sequence only Complete lockup of Operator s Console No Watch Dog indication Possible Causes VALUEGEN TECHNICAL MANUAL Setup Calibration Data Missing or corrupted Defective BBU pcb Corrective Action Follow detailed procedure listed below If the problem recurs replace BBU pcb If Error Code E1 1 Turn off the g NOTE If you have this Error Code showing on the Operator s Console the generator is disabled until perform the following procedure With this Error Code the SERVICE switch on the BBU pcb will not function you 6 appears on Start Up enerator 2 Turn off the Wall Disconnect 3 Press and hold the
43. lections mAs Display 13 AEC Field Select da 14 AEC Reset SV r lies nate a p Down 15 Overload LED 25 Film Screen Select WON AUABRWNE Time Up Down 16 Collimator LED MAS Up Down 17 Interlock LED 26 A P Lateral Other AEC Density Up Down 18 On Off Modes of Operation The APR Operator s Console has three 3 modes of operation Manual Mode APR Mode AEC Mode Each mode has it s own specific characteristics of operation Please read each description carefully to note the dif ferences and similarities Manual Mode In the Manual Mode of operation the APR Operator s Console acts just like the Standard Console supplied with the VALUEGEN generators You may manually input values for kVp mA Time and mAs as well as select a Bucky if the option is installed Exposures are based on this manually entered technique APR functions are not available while in the Manual Mode The Manual Mode is indicated when the Centimeter Display is not illuminated and there are no AEC selections made if the option is installed Copyright 2007 GTR LABS Inc VALUEGEN TECHNICAL MANUAL 11 APR Mode The APR Mode is indicated by having the Centimeter Display illuminated and one of the green APR Selection LEDs lit In the APR Mode the operator may make an APR Selection of anatomy region and view and select a Centimeter Thick ness This will automatically select and display a technique based upon the Technique Chart stored
44. llimator LED 16 should be illuminated and PREP should be inhibited Close the Interlock The Collimator LED 16 should not be illuminated and PREP should be functional Overload LED Increase the kVp mA and Time to the maximum indications for each display Observe the Overload LED 15 If the exposure factors selected exceed the maximum ratings for the x ray tube selected this LED should be illuminated and PREP should be inhibited PREP Press and hold PREP 12 The rotor should turn and after the programmed Rotor Boost Time the green PREP LED should illuminate indicating an exposure is possible EXP Select 50 kVp the smallest mA programmed and 1 0 sec Time Press and hold PREP 12 When the green PREP LED illuminates press and hold EXP 11 The red EXP LED should illuminate and an audible tone should sound to indicate an exposure in progress Release EXP before the selected time expires The exposure should stop the red EXP LED should extinguish and the audible tone should stop Press and hold EXP again Another exposure should begin At the end of the selected time the exposure should stop Release PREP and EXP Press and hold EXP only There should be no indication and no exposure Copyright 2007 GTR LABS Inc 48 VALUEGEN TECHNICAL MANUAL BKY Bky 1 Press the BKY switch 10 until the Bky 1 LED is illuminated Select 50 kVp the smallest mA station programmed and 25 secs on the Time Display Make
45. ments mentioned in the manuals delivered with the material THIS WARRANTY IS GIVEN BY GTR WITH RESPECT TO THIS PRODUCT IN LIEU OF ANY OTHER WARRANTIES EXPRESS OR IMPLIED GTR AND IT S VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE GTR S RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE REM EDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY GTR AND IT S VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT SPECIAL INCIDENTAL OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER GTR OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES There are no warranties which extend beyond the description mentioned in this document Presentation This manual contains information on the installation of the VALUEGEN generators Notation NOTE This is an example of a NOTE NOTES are areas that need additional attention CAUTION This is an example of a CAUTION CAUTIONS are procedures that the operator must heed in order to avoid damage to the equipment WARNING This is an example of a WARNING WARNINGS are procedures that the operator must heed in order to avoid bodily harm or injury Copyright 2007 GTR LABS Inc 4 VALUEGEN TECHNICAL MANUAL Applicability This manual is applicable to the v Series Single Tube RAD generators V 10 10 kW V 20 20 kW V 325 20 kW V 30 30 kW V 425 30 kW V 40 40 kW V 550 40 kW V 50 50 kW V 650 5
46. microprocessors and checks the following data Battery Backup RAM Communications Diagnostic Interlock Power Supplies If you have no Error Codes showing on the Operator s Console and the Blue Watch Dog LED is illuminated the genera tor has executed a normal Power Up sequence and is ready to proceed with the initialization process gt NOTE You must return DIP1 1 to the ON position and initiate a Power On sequence before proceeding You must initiate a Power On sequence in order to reset the generator s microprocessors Momentarily press the On Off Pushbutton on the rear of the Operator s Console This will turn the generator off Move DIP1 1 on the BBU pcb to the ON position and momentarily press the On Off push button on the front of the Operator s Console This will initiate a Power On Sequence Pre Set s This section covers the following steps Select the X Ray Tube Select Small mA Stations Select Large mA Stations Select Filament Standby Number for Small Filament Select Filament Standby Number for Large Filament Select the Rotor Boost Time Select Buckys and AEC if option installed Select Interlocks Select High Voltage Cable Length Select Maximum kVp Refer to Table 4 1 for the Pre Set adjustments and their order of appearance Space is provided in the Table for you to note the settings you make during this sequence for future reference Copyright 2007 GTR LABS Inc VALUEGEN TECHNICAL MANUAL ENTIRE
47. must notify GTRS of the defect before the expiration of the warranty period and make suitable arrangements for the performance of service Customer shall be responsible for packaging and shipping the defective product to the service center designated by GTR with shipping charges prepaid GTR shall pay for the return of the product to Customer if the shipment is to a location within the country in which the GTR designated service center is located Customer shall be responsible for paying all shipping charges duties taxes and any other charges for products returned to any other locations This warranty shall not apply to any defect failure or damage caused by improper or inadequate maintenance and care GTRS shall not be obligated to furnish service under this warranty 1 to repair damage resulting from attempts by personnel other than GTR representatives to install repair or service this product 2 to repair damage resulting from improper use or connection to incompatible equipment or power source or 3 to service a product that has been modified or integrated with other products when the effect of such modification or integration increases the time or difficulty of servicing the product Further GTR LABS Inc warrants that the product is in compliance with U S A DHHS regulations which may be in force and effect at the time of shipment of the product The following is not covered by the warranty General maintenance and simple adjust
48. n No EXP function No Watch Dog indication Possible Causes No Bucky Motion Signal No Tomo Expose Signal Corrective Action Restore Bucky Motion Signal Restore Tomo Expose Signal Deselect Bucky Error Code OPC E04 Description Rotor Boost Time out Error Resets on Power Up Seguence System Indication Complete lock up of Operator s Console func tions No Watch Dog indication Stop PREP sequence in progress Disconnects 208 VAC Switched on SPB Possible Causes No Rotor current during PREP Open MAIN or Phase Rotor Wires Corrective Action Restore Rotor current Error Code OPC E05 Description Rotor Current without PREP Error Resets on Power Up Sequence System Indication Complete lock up of Operator s Console func tions No Watch Dog indication Disconnects 208 VAC Switched on SPB Possible Causes Failure in Rotor Boost circuit Rotor Relay stuck Corrective Action Restore normal Rotor function Replace SPB pcb Error Code OPC E06 Description Filament Boost Time out Error Resets on Power Up Sequence System Indication Complete lock up of Operator s Console func tions Copyright 2007 GTR LABS Inc VALUEGEN TECHNICAL MANUAL No Watch Dog indication Stops PREP Sequence in progress Disconnects 208 VAC Switched on SPB Possible Causes Failure in Filament circuit X Ray Tube Incorrect or missing Calibration numbers for se lected mA Corrective Action Restore Filament Current Ch
49. nterlock If you have connected a Door Interlock to J4 pin 6 on the BBU pcb refer to Figure 3 7 select a 1 for Pre Set 26 If not select a 0 Software Version Pre Set 27 will indicate the Software Version of the generator 5 NOTE This completes the Setup section of the Technical Manual Advance the Pre Set showing in the mAs Display to 32 and turn to Chapter 5 Calibration Copyright 2007 GTR LABS Inc VALUEGEN TECHNICAL MANUAL 39 Chapter 5 Calibration WARNING The procedures detailed in 6 this chapter will produce tube current Do not proceed unless vou have completed the steps outlined in Chapter 4 Setup Failure to heed this WARNING may result in catastrophic failure of the X Ray Tube serious damage to the generator and possible injury NOTE You should be in the SERVICE Mode with Pre Set 32 showing in the mAs Display on the Operator s Console DIP1 4 Auto Manual Calibration WATCHDOG Cumulative kVp Test Point Cumulative mA Test Point kVp POS kVp NEG GND Figure 5 1 kVp mA Test Points kVp Cumulative 1 V 32 kVp kVp Anode V 28 kVp kVp Cathode V 28 kVp mA Cumulative 1 V 133 mA Monitor the kVp POS and kVp NEG test points with a dual trace storage oscilloscope for these procedures refer to Figure 5 1 Select 1 V division and 10 ms kVp Feedback Test The first step in the Calibration Procedure is to ensure that the kVp Feedback loop is connected c
50. on and monitor the kVp waveforms on the oscilloscope The kVp POS should be 25 kVp 5 kVp and the kVp NEG should be 25 kVp 5 kVp exposure for any reason release the PREP and EXP push buttons NOTE Only make one exposure If you must make another momentarily and start the sequence again NOTE During this test there is no tube current The kVp waveforms will have a long tail on them due to slow cable discharge This is normal WARNING If the kVp is not within the limits specified or if you get an Error Code on the kVp Display of the Operator s Console do not proceed This indicates a problem in the kVp Feedback circuitry and must be corrected before any further exposures are made Release the PREP and EXP push buttons If the kVp waveforms are within the limits specified proceed to Calibration Calibration NOTE During the Calibration Procedure each selected mA station is adjusted at different kVp Set Points This procedure establishes mA linearity During calibration exposures for the higher mA stations will be made at kVp Set Points including 100 kVp 120 kVp and 140 kVp V 40 50 regardless of the generator power rating These exposures are limited to 10 milliseconds and have no relationship to the maximum kW output of the generator The generator has two calibration modes Manual Calibration and AUTOCAL In the Manual Calibration mode the Service Engineer selects each programmed mA station and each kVp
51. op EXP in progress Complete lock up of Operator s Console func tions No Watch Dog indication Disconnects 208 VAC Switched on SPB Possible Causes Filament Numbers Too High Corrective Action Lower Filament Numbers Recalibrate Error Code OPC E11 Description Anode Fault kVp Too High Resets on Power Up Sequence System Indication Stop EXP in progress Complete lock up of Operator s Console func tions No Watch Dog indication Disconnects 208 VAC Switched on SPB Possible Causes High Voltage Arc on Cathode side Defective X Ray Tube Defective High Voltage Cable Failure in HVT Corrective Action Inspect for visual evidence of High Voltage Arc Inspect Replace X Ray Tube Inspect Replace High Voltage Cables Inspect Replace HVT Error Code OPC E12 Description Cathode Fault mA Too High Resets on Power Up Sequence System Indication Stop EXP in progress Complete lock up of Operator s Console func tions No Watch Dog indication Disconnects 208 VAC Switched on SPB Possible Causes Copyright 2007 GTR LABS Inc 58 High Voltage Arc on Anode side Defective X Ray Tube Defective High Voltage Cable Failure in HVT Corrective Action Inspect for visual evidence of High Voltage Arc Inspect Replace X Ray Tube Inspect Replace High Voltage Cables Inspect Replace HVT Error Code OPC E13 Description TEC pcb Fault Error Resets on Power Up Sequence System Indication Complete lock up of Operator s Conso
52. or missing Interconnection Ribbon Cables missing or discon nected RAM error on Power Up Ribbon Cable Error Corrective Action Check voltage test points on BBU pcb Check fuses on SPB Replace BBU Check Ribbon Cables Error Code OPC EO1 Description Interface Cable Error Resets on Power Up Sequence System Indication No PREP function No Watch Dog indication Displayed until corrective action taken Possible Causes Disconnect or defective Interface Cable GCU HVT Corrective Action Connect or repair Interface Cable GCU HVT Error Code OPC E02 Description Tube Thermal Interlock Resets when Tube cools System Indication No PREP function No Watch Dog indication Displayed until corrective action taken Possible Causes X Ray Tube overheated Corrective Action Wait until X ray Tube Cools Error Code OPC No Display Description Communications Error No Reset System Indications Complete lockup of all system functions Possible no Operator s Console No Watch Dog indication Possible Causes Failure of Operator s Console Disconnected or defective Interconnecting Cable GCU Operator s Console Corrective Action VALUEGEN TECHNICAL MANUAL Replace Operator s Console Connect or replace Interconnecting Cable GCU Operator s Console Error Code OPC E03 Description No Bucky Motion Tomo Error Resets with AEC Reset pressed System Indications Error Displayed until corrective action take
53. or wishes to add AEC functions to the stored techniques you must follow the instructions for STORE in the above section on APR Mode When adding AEC to one or more of the stored APR Selections remember to select an appropriate Backup Time for each selection Selection you add an AEC funcion to will result in the Backup Time warning LED being illuminated and require an AEC Reset X selection Failure to program in a Backup Time for each APR Copyright 2007 GTR LABS Inc VALUEGEN TECHNICAL MANUAL 13 Figure 1 6 Chassis Right Side E Ll E P F IR d Jd ou E UL o 5 LL m Ta s i Figure 1 4 Cabinet Front View CVI pcb Storage Capacitors Pre Charge Resistor Figure 1 7 Chassis Left Side Bridge Rectifier IPM Charge Relay BBU pcb BBU pcb Line Fuses Rotor Flux Capacitor TEC pcb Capacitor SPB pcb Figure 1 5 Chassis Front View Copyright 2007 GTR LABS Inc 14 VALUEGEN TECHNICAL MANUAL i Service Push Button E uu sj AL E U Fa E z J4 DIP1 Interface z Watch Dog LED Us LR Test Points ona ar AEC Bucky 1 Bin Is E gt e AEC Bucky 2 ET AEC No Bucky Caii va me ud auum unam kl 11 i J3 High Speed Starter Interface Figure 1 10 AEC HSS pcb J7 Operator s Console J8 Feedback Figure 1 9 Brain Board BBU AEC 3 No Bucky AEC 2 Bucky 2
54. ore than twice the Offset Number gt NOTE The maximum number for Tilt is 250 Copyright 2007 GTR LABS Inc VALUEGEN TECHNICAL MANUAL 45 Pre Set m Factory eM Female DB 9 AEC connector on bottom of GCU Cas fesse wo Cas remewwcm wo Cerf sem wo pin signal I O N U Field 3 Select Output from generator Field 2 Select Output from generator START Supplied from generator OUTPUT Output from ion chamber Field 1 Select Supplied from generator 12V DC Output from generator 12V DC Ouput from generator GND Common Bucky 2 AEC Density Bucky 2 AEC T Table 5 3 AEC Pre Set s COONOOIROUON indicates an active low signal Figure 5 3 Pinout for AEC Connectors NOTE For Use With Positive Slope ION Chambers Only Chapter 6 Compliance Testing Overview The generator meets the requirements for DHHS Radiation performance standards for high voltage generators as de tailed in Title 21 CFR Chapter 1 Sub Chapter J Section 1020 in effect as of the date of manufacture This chapter details the procedures necessary to ensure compliance with the performance standard The tests and inspections in this chapter should be performed Upon initial installation Once a year as part of a preventive maintenance inspection Any time a major component is replaced CAUTION The generator is a sophisticated electronic device All components are chosen for performance qualit
55. orrectly and working properly Calibration Sequence Catastrophic damage to the High Voltage WARNING Do not omit this procedure when initiating a components of the generator could occur NOTE The technique factors for the following series of exposures are automatically adjusted by the software 208 VAC stand by power is present on the SPB pcb even if the Operator s Console is switched off Lethal voltages are present on the pcb and care should be taken to avoid electrical shock 99 208 vac DANGER When the wall disconnect is switched on Copyright 2007 GTR LABS Inc 40 VALUEGEN TECHNICAL MANUAL During this test the Time Display will indicate the DC Voltage charge on the Storage Capacitors and the kVp Display will show the test kVp With Pre Set 32 showing on the mAs Display of the Operator s Console the capacitor volt age level 100 will be showing on the Time Display The kVp Display will show the kVp value for the test 50 kVp With Pre Set 32 showing on the mAs Display of the Operator s Console press and hold the PREP push button The following sequence of events will be initiated The Discharge Relay will be disabled The Pre Charge Relay will be energized momentarily until approximately 100 VDC is indicated on the storage capaci tors The Charge Relay will be disabled The Rotor will boost and begin to run The green Ready LED in the PREP push button will illuminate Press the EXP push butt
56. r Lamp Power 27 Copyright 2007 by GTR LABS Inc All rights reserved Contents of this publication may not be reproduced in any form or by any means electronic or mechanical including photocopying and recording or by any information storage or retrieval system without the writ ten permission of GTR LABS Inc 510 EIk Street Gassaway WV 26624 Telephone 304 364 2211 web www gtrllc com email gtr gtrllc com 27 28 29 29 29 29 29 29 33 35 35 36 37 37 37 38 38 39 39 40 43 43 44 45 45 45 45 46 49 51 51 53 54 55 55 56 60 VALUEGEN TECHNICAL MANUAL 3 Preface Warranty GTR LABS Inc warrants that this product will be free from defects in materials and workmanship for a period of five 5 years from the date of installation at the first end user s site If any such product proves defective during this warranty period GTRS at it s option either will repair the defective product without charge for parts or shop labor or will provide a replacement in exchange for the defective product This warranty shall apply to all equipment and systems sold by GTR with the exception of the following X Ray Tubes Image Intensifiers TV Camera Tubes The above items are subject to the manufacturer s warranty in effect as of the date sold These warranties vary and are pro rated The manufacturer will be the final authority for any warranty claim In order to obtain service under this warranty Customer
57. r down as required and make another exposure and read the mA Continue until you have completed calibration for this mA station on all the kVp set points Using the Up Down push buttons for the mAs Display advance to the next Pre Set corresponding to the next pro grammed mA station Refer to Table 5 1 Adjust the Filament Number for each kVp set point in turn until you have completed calibration for this mA station Continue until you have adjusted the correct mA for each mA station and each kVp set point programmed AUTOCAL The AUTOCAL mode provides for manual selection of each programmed mA station and automatic adjustment of the Filament Numbers at each kVp set point to produce the correct mA The generator is shipped in the Manual Calibration mode DIP1 4 on the BBU pcb is in the OFF position refer to Figure 5 1 To select the AUTOCAL mode move DIP1 4 to the ON position Press the SERVICE pushbutton on the BBU pcb to put the generator into the SERVICE mode Tube Protection is automatic and is based upon the selection of the x ray tube in Pre Set 00 Using the Up Down push buttons for the mAs Display advance the Pre Set until you have the first programmed mA station displayed on the mAs Display Refer to Table 5 1 The Time Display will show the Filament Number gt NOTE The range of Filament Numbers is O to 999 depending upon the size of the filament The kVp Display will show the first kVp set point ref
58. ration Pre Set s NOTE The filament numbers in all the kVp Set Point locations for the mA stations were entered during Final Test at the factory Your numbers will be different for the x ray tube you are calibrating MA Test MA Test mA Station Point mA Station Point Voltage Voltage om s0 Table 5 2 Voltage Readings at mA Composite Test Point on DIB for each mA Station Copyright 2007 GTR LABS Inc VALUEGEN TECHNICAL MANUAL 43 Manual Calibration The Manual Calibration mode provides for manual selection of each MA station and kVp set point and manual adjust ment of the Filament Numbers for each programmed mA station to produce the correct mA Tube Protection is automatic and is based upon the selection of the x ray tube in Pre Set 200 Press the SERVICE pushbutton on the BBU pcb to put the generator into the SERVICE mode Using the Up Down push buttons for the mAs Display advance the Pre Set until you have the first programmed mA station displayed on the mAs Display Refer to Table 5 1 The Time Display will show the Filament Number amp NOTE The range of Filament Numbers ts 0 to 999 depending upon the size of the filament The kVp Display will show the first kVp set point refer to Figure 5 2 The mA Display will show the mA Station Press and hold the PREP push button When the green READY LED is illuminated make an exposure by pressing the EXP push button Adjust the Filament Number up o
59. sing the Up Down push buttons for the mAs Display scroll through the Pre Set s until you have 13 displayed on the mAs Display Monitor the FIL I test point on the BBU pcb with a Digital Voltmeter or an oscilloscope 1 VDC 1 3 Amp Using the Up Down push buttons for the Time Display increase the Filament Number until the filament begins to il luminate Determine that you are adjusting the Large Filament by visual inspection Continue adjusting the number until you reach a maximum of 2 75 Amps or the Large Filament is bright enough Record this value in Table 4 1 for future reference HV Cable Length The length of the HV Cables is a factor in the shape of the kVp waveform This effect is non linear and more pronounced at the lower kW levels The generator compensates for this effect automatically With Pre Set 14 showing in the mAs Display select the approximate length of the HV Cables connected to the generator using the Up Down push buttons for the Time Display The length is displayed in increments of 5 feet NOTE For cable length not divisible in 5 feet increments select the next lowest setting on the mA Display For instance for a cable length of 17 feet select the setting of 15 feet on the Time Display Copyright 2007 GTR LABS Inc VALUEGEN TECHNICAL MANUAL 37 Buckys and AEC Selection The generator will operate 2 Buckys and 3 Ion Chambers for AEC if the options are installed Each of these func
60. the Bottom Panel Refer to Figure 1 6 in Chapter 1 ground NO VOLTAGE Any voltage on this input will result in 6 WARNING The Bucky Motion Inputs must be a contact to damage to the eguipment NOTE Buckys are active only if the specific option is installed Copyright 2007 GTR LABS Inc VALUEGEN TECHNICAL MANUAL 21 GND Bucky 1 COM Bucky 1 N O Bucky 1 Motion Bucky 2 COM Bucky 2 N O Bucky 2 Motion Figure 3 2 Bucky Connections V RAD SYSTEM BUCKY CONNECTIONS Jumper 220 VAC A 220 VAC B Copyright 2007 GTR LABS Inc 22 VALUEGEN TECHNICAL MANUAL All Buckys supplied with V RAD SYSTEMS are switched for 220 VAC operation That 220 VAC is now available on the SPB pcb at the locations indicated above Follow the wiring directions on the label on the Bucky cable The directions follow the diagram below Bucky 1 is as sumed to be the Table and Bucky 2 is assumed to be the Wall Stand in a 2 Bucky system I Z Z B4 220 VAC B 220 VAC B Bucky 1 COM J92 Bucky 2 COM 39 5 Jumper Jumper 220 VAC A to J9 2 220 VAC A to J9 5 SIMPLIFIED BUCKY CONNECTIONS 240 VAC A 120 VAC BUCKY MUTUR 240 VAC B 120 VAC BUCKY MOTOR 120 VAC BUCKY MOTOR CONNECTION BUCKY 1 Copyright 2007 GTR LABS Inc VALUEGEN TECHNICAL MANUAL 240 VAC A CIS 120 VAC IL UND x 240 VAC B MIDWEST BUCKY NEW SIYLE B8 IS PUWER FUR CIRCUIT BUARD 240 VAC BUCKY MOTO
61. tions can be programmed independently the Time Display 0 1 and 2 0 disabled 1 enabled bucky and 2 enabled tomo NOTE For Pre Set Zs 215 and 516 you have three choices on NOTE For Pre Set s 17 through 19 you have two choices on the Time Display 0 or 1 0 disabled 1 enabled NOTE Bucky s and AEC are active only if the specific option is installed Bucky 1 Select If you have connected a Bucky to the Bucky 1 position of J9 select a 1 for Pre Set 215 For Tomo select a 2 If none select a 0 Bucky 2 Select If you have connected a Bucky to the Bucky 2 position of J9 select a 1 for Pre Set 216 For Tomo select a 2 If none select a 0 AEC No Bucky Select The generator has the capability of operating an Ion Chamber without the selection of a Bucky for table top stretcher or wheel chair use This condition is selected by having both BKY 1 and BKY 2 LEDs not illuminated on the Operator s Console The interconnection point for this Ion Chamber is AEC 3 on the Bottom Panel of the GCU refer to Figure 1 6 If you have connected an Ion Chamber to AEC 3 select a 1 for Pre Set 217 If not select a 0 AEC Bucky 1 Select If you have connected an Ion Chamber to AEC 1 and it is installed in Bucky 1 select a 1 for Pre Set 218 If not select a 0 AEC Bucky 2 Select If you have connected an Ion Chamber to AEC 2 and it is installed in Bucky 2 s
62. tton 18 on the Operator s Console The system should come on and all LEDs in the four displays should illuminate and the Beep should sound There should not be an Error Code displayed in the kVp Display kVp Display and Up Down There should be a value between 40 and 125 displayed on the kVp Display 1 Press kVp Up and kVp Down 5 The display should increase and decrease mA Display and Up Down There should be an mA value showing on the mA Display 2 Press mA Up and mA Down 6 The display should increase and decrease The decimal point in the lower right of the display will illuminate to indicate Large Focal Spot Time Display and Up Down There should be a Time value showing on the Time Display 3 Press Time Up and Time Down 7 The display should increase and decrease The decimal point will change to indicate milliseconds tenths and whole seconds mAs Display and Up Down There should be an mAs value showing on the mAs Display 4 Press mAs Up and mAs Down 8 The display should increase and decrease The decimal point will change to indicate portions or whole mAs Interlock LED Open the external interlock connected to Pin 6 of J4 on the BBU pcb The Interlock LED 17 should be illuminated and PREP should be inhibited Close the Interlock The Interlock LED 17 should not be illuminated and PREP should be functional Collimator LED Open the collimator interlock connected to Pin 5 of J4 on the BBU pcb The Co
63. u may not increase the length of the Interface Cable or the P1 P2 Cable Unpacking The generator is shipped in one carton Carefully inspect the exterior of the carton for external damage Report any damage immediately to the carrier Dam age due to mishandling during shipping or transportation is specifically not covered by the manufacturer s warranty transportation is specifically not covered by the manufacturer s warranty transp Damage due to mishandling during shipping or HV Tank Remove the HV Tank from the carton Open the plastic bag and inspect for an oil leak Some seepage is normal due to pressure changes in shipping NOTE Due to pressure changes in shipping and transportation residual amounts of oil may leak from the HVT and be evident on the carton or packing materials Release the seal on the HV Tank with the HV Tank in it s normal upright position by turning the wing nut on top of the filler plug counterclockwise several times until it is loose Cabinet Remove the Cabinet from the carton Open the plastic bag and inspect for damage to the cover Inspection WARNING It is critical that you conduct a complete visual inspection of the components of the generator after unpacking Every precaution is taken during the final test and packing procedures to ensure that all screws and fasteners are se cured tightly and that all circuit boards are seated properly However it is the responsibility
64. unt Bracket to the wall to prevent the Cabinet from falling over Remove the 4 1 4 20 nuts which secure the GCU chassis to the Wall Mount Bracket Remove the GCU chassis from the Wall Mount Bracket The Wall Mount Bracket can be sited flush with the floor or suspended on the wall See Warning above If you install the Wall Mount Bracket flush with the floor you must use the two top mounting holes to secure theWall Mount Bracket to the wall to prevent the Cabinet from falling over If you install theWall Mount Bracket suspended on the wall you must use all 6 mounting holes to secure the Wall Mount Bracket Once the Wall Mount Bracket has been secured to wall using one of the above methods you may mount the HV Tank and GCU chassis Cable Access is through the bottom right and or left corner of the Wall Mount Bracket HV Tank The HV Tank weighs approximately 85 Ibs 38 kgs and must be mounted in an upright position on the bottom shelf of the Wall Mount Bracket If the local building code requires that the HVT be secured mechanically to a mounting surface you may drill holes in the bottom shelf of the Wall Mount Bracket GCU The GCU chassis weighs approximately 35 Ibs 16 kgs Secure the Chassis to the Wall Mount Bracket using the 4 1 4 20 studs provided Cable access to the GCU is through the bottom panel Refer to Figure 1 6 in Chapter 1 Operator s Console The Operator s Console is designed to mount on a shelf or desk top
65. value showing on the mA Display 2 Press mA Up and mA Down 6 The display should increase and decrease The decimal point in the lower right of the display will illuminate to indicate Large Focal Spot Time Display and Up Down There should be a Time value showing on the Time Display 3 Press Time Up and Time Down 7 The display should increase and decrease The decimal point will change to indicate milliseconds tenths and whole seconds mAs Display and Up Down There should be an mAs value showing on the mAs Display 4 Press mAs Up and mAs Down 8 The display should increase and decrease The decimal point will change to indicate portions or whole mAs Interlock LED Open the external interlock connected to Pin 6 of J4 on the BBU pcb The Interlock LED 17 should be illuminated and PREP should be inhibited Close the Interlock The Interlock LED 17 should not be illuminated and PREP should be functional Collimator LED Open the collimator interlock connected to Pin 5 of J4 on the BBU pcb The Collimator LED 16 should be illuminated and PREP should be inhibited Close the Interlock The Collimator LED 16 should not be illuminated and PREP should be functional Overload LED Increase the kVp mA and Time to the maximum indications for each display Observe the Overload LED 15 If the exposure factors selected exceed the maximum ratings for the x ray tube selected this LED should be illuminated and PREP should be
66. y and safety Replacement should be confined to printed circuit boards or major components Replacement of components other than those mounted in a socket i e fuse relay on a printed circuit board is not authorized as this may affect safety as well as performance standard compliance Configuration Operator s Console There are 2 Operator s Consoles that are available with the VALUEGENG family of generators that require Compliance Testing They are Standard Operator s Console Part Number 6065 00 APR Operator s Console Part Number 6072 00 Copyright 2007 GTR LABS Inc 46 VALUEGEN TECHNICAL MANUAL Standard Operator s Console 1 2 3 4 Bus LEL 9 VALLIEGE HN 10 LL 17 16 15 14 13 12 11 Figure 6 1A Standard Operator s Console Front View 20 19 Figure 6 1B Standard Operator s Console Rear View 1 kVp Display 11 EXP 2 MA Display 12 PREP 3 Time Display 13 AEC Field Select 4 mAs Display 14 AEC Reset 5 kVp Up Down 15 Overload LED 6 mA Up Down 16 Collimator LED 7 Time Up Down 17 Interlock LED 8 mAs Up Down 18 On Off 9 AEC Density Up Down 19 Hand Switch 10 BKY Select 20 Connector gt NOTE Based upon selections made in Chapter 4 Setup some of the following tests may not be applicable Copyright 2007 GTR LABS Inc VALUEGEN TECHNICAL MANUAL 47 Refer to Figure 6 1A8B for the following tests On Off Press and release the On Off push bu
67. y to scroll forward and reverse through the available X Ray Tube numbers When you have the X Ray Tube you want selected use the Up Down push buttons for the mAs Display to proceed to the next Pre Set The tube number will be stored automatically Copyright 2007 GTR LABS Inc 34 VALUEGEN TECHNICAL MANUAL oo smeemow 1020 x x X v sweewos ie xx Poa tires oms xf x ME CIRE X x os semen same x x x Cor seewom ona x x ss amener ose x x pie Hips bere tubes If you have selected 15 seemwom osnz x x 50 for Setup location X appears in the 50Hz 15 mwemwoss waz x x column 14 mwemwoss was x x D RE A MEN EN o me ona x x x s mecs ioeo x x L omen Toma e s x x X x gt X lt x lt N N mecs ue eines e un X XX XI XI X XII X NOTE This tube has a fixed anode and is rated at 5 kW Selecting this tube automatically disables the rotor circuit and sets 5 kW as maximum output 100 kVp 50 mA UJ UJ Table 4 2 X Ray Tube Selection j GJ w NJ gula Copyright 2007 GTR LABS Inc VALUEGEN TECHNICAL MANUAL 35 mA Station Selection You have a maximum of 11 mA Stations which you can program on the V 50 V 650 generator 10 on the V 40 V 550 9 on the V 30 V 425 8 on the V 20 V325 and 7 on the V 10 You may use any combination between the large and the small filaments gt NOTE In the Time

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