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InnoVet Select

™

HF APR

Service Manual

71

10.3 Testing for High Voltage Breakdown

The 20 kHz HF APR generator filament current feedback can be bypassed to allow
for shooting the system with an open secondary (no tube or HV cables) to
investigate the source of secondary arcing. This procedure should only be
performed by personnel familiar with high voltage tests and/or under the guidance
of Technical Support.

When DIP1 - 3 is in the CLOSED (ON) position (01003-000System Controller pcb),
the rotor and filament interlocks and feedbacks are disabled. In this condition, the
generator will make kVp, but not mA and will not spin the anode of the tube. This
allows potential to be placed on the high tension transformer.

Monitor the kVp feedback test point

TP8

on the System Controller pcb to look for

evidence of high voltage breakdown, such as spikes to high potential or spikes to
ground. If none are present, the cables or tube would be suspect. Also monitor the
mA feedback point

TP9

as there should be no mA. If present, the tank is suspect.

When finished with this test, ensure that DIP1-3 is returned to the OPEN (OFF)
position.

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Содержание INNOVET SELECT HF APR

Страница 1: ...INNOVET SELECT HF APR Installation and Service Manual 02104 000 Rev E Oct2005 SUMMIT INDUSTRIES INC 2901 West Lawrence Ave Chicago IL 60625 773 588 2444 www summitindustries net ...

Страница 2: ...visible damage to the cartons also includes damage to the merchandise the installer is responsible for making all claims with the shipping company If there is hidden damage to the merchandise it is the installer s responsibility to discover that damage within a reasonable amount of time and contact the shipping company to make a claim To protect your company in the case of hidden damage it is reco...

Страница 3: ...d and authorized to operate this equipment should be familiar with the Recommendations of the International Commission on Radiological Protection contained in Annals Number 26 of the ICRP and with the applicable national and local standards The equipment described in this manual will perform reliably when installed maintained and operated in accordance with the instructions of this manual by quali...

Страница 4: ... UNFAMILIAR WITH SAFE OPERATING PROCEDURES SHOULD NOT ATTEMPT TO PERFORM SERVICE ON THIS DEVICE Installation and Service Manual Revisions History Revision Pages Affected Revision Description Release Date ECR A Initial Issue SEPTEMBER 2004 4213 B Revised table 7 1A NOVEMBER 2004 4364 C REVISED SECTION 6 7 5 January 2005 4456 D Revised Section 6 7 June 2005 4630 E Revised Section 7 7 3 October 2005 ...

Страница 5: ...ine Current 17 1 9 Technique Factors That Constitute Maximum Line Current 17 1 10 Power Line Requirements 18 1 11 Room Inspection 18 1 12 Unpacking 18 2 0 MECHANICAL ASSEMBLY 19 2 1 Table 19 2 2 High Voltage Generator and Transformer Placement 19 2 3 Tubestand 20 2 3 1 Fixed top table 20 2 3 2 Float top table 22 2 4 Tube Arm Tube Collimator Installation 24 2 5 Mounting Operator s Console and Routi...

Страница 6: ...fication 36 5 4 1 Operator s Console 36 5 4 2 Power Module 36 6 0 GENERATOR INSTALLATION 38 6 1 Line Voltage 38 6 2 Position System Components 38 6 3 Operator s Console 38 6 4 Transformer Installation 38 6 5 System Interconnection 39 6 6 Connecting Mains Input Power 39 6 7 Field Installation of Line Matching Transformer 40 6 8 High Voltage Cables 43 6 9 Stator Cable 44 6 10 Table Interface TB 5 45...

Страница 7: ...9 3 Step by Step Calibration 59 10 0 TROUBLESHOOTING 64 10 1 Overview 64 10 2 Troubleshooting Guide 69 10 3 Testing for High Voltage Breakdown 71 11 0 MEMORY FUNCTIONS 72 11 1 Memory Function Screen 72 11 2 Inserting the Memory Card 73 11 3 The Default Vet Screen 73 11 4 The POWER MODULE TO CONSOLE Screen 74 11 5 The CARD TO CONS Screen 75 11 6 The CONS TO CARD Screen 75 12 0 ACCURACY TESTING 76 1...

Страница 8: ... Fusing for AC Voltages 50 9 1 Typical Filament Values 62 9 2 Recording Filament Values 63 9 3 Recording Master kv and Master Ma Values 63 10 1 Error Codes 64 12 1 Recording kVp and mAs Outputs 77 13 1 Required Maintenance Log 79 FIGURES 1 Space Requirements 11 2 Back Rail End Stop 20 3 Tubestand Positioning 20 4 Mounting Tubestand to Lower Rail 21 5 6 Exposing Upper Rail for Mounting Tubestand 23...

Страница 9: ...us situation Each alert word is always used with only one specific type of information The alert words and the information they reference are as follows NOTE Information that assists the user of the manual in the performance of a task It may provide the user with better methods of conducting the task or it may point out conditions that could cause the system to fail to operate properly CAUTION Inf...

Страница 10: ...vailable mA is automatically selected for minimum exposure time Operator override is allowed Protection circuitry to prolong tube life and increase system performance Self diagnostic displays to inform users and service personnel of system condition The generator is designed to fit entirely within the table base The InnoVet Select HF APR system is a fully integrated table tubestand structure with ...

Страница 11: ...T Each Version 2 For tables with Float Top option 1 For STANDARD Fixed Top tables 28 3 53 3 44 58 3 44 67 82 1 2 HEIGHT A 12 extension is available for this version only AWTDS015 1 3 2 Space Requirements Figure 1 INNOVET SELECT SYSTEM DRAWING Model S305 ...

Страница 12: ... they conform to the recommendations Current sources of information include National Council on Radiation Protection Report No 33 Medical X Ray and Gamma Ray Protection for Energies up to 10 MEV Equipment Design and Use National Bureau of Standards Handbook No 76 Medical X Ray Protection up to Three Million Volts Refer to MCRP Report No 33 Current recommendations of the International Committee on ...

Страница 13: ...ents or personnel to x ray radiation Furthermore the manufacturer does not accept any responsibility for over exposure of patients or personnel to x ray radiation generated by this equipment which is a result of poor operating techniques or procedures Also no responsibility will be assumed for any machine that has not been serviced and maintained in accordance with the system technical manual or w...

Страница 14: ...eld apron and gloves with a lead equivalency of not less than 0 5 mm The best safety rule for x ray operators is Avoid exposure to the primary beam at all times 1 4 4 Monitoring of Personnel Monitoring of personnel to determine the amount of radiation to which they have been exposed provides a valuable cross check to determine whether or not safety measures are adequate The most effective method o...

Страница 15: ...e x ray tube housing or high voltage transformer or the access covers from the generator until the main and auxiliary power supplies have been disconnected When disconnecting high voltage cables they must be grounded immediately in order to dissipate any electrical charge that may remain on the cables or the tube 1 4 6 Mechanical WARNING Particular care should be taken when servicing the inside of...

Страница 16: ...eny MC150 and Linear II or Linear IV 1 6 Accuracy Statement All measurements are made in compliance with the directions of the 20 kHz HF APR Generator Service Manual in the Installation Accuracy testing and Calibration procedures sections NOTE Specified accuracy for kVp and mA does not include test equipment tolerance 1 6 1 Exposure kVp Output kVp within 5 of indicated kVp 1 kVp 1 6 2 Exposure mAs...

Страница 17: ...300 mA Power 30 kW Table 1 1 Maximum Power Rating 1 8 Maximum Momentary Line Current Complete power requirements are shown in Section 1 8 below LINE VOLTAGE 60 Hertz LINE CURRENT Single Phase 208 VAC 230 Amps 220 VAC 220 Amps 240 VAC 200 Amps Table 1 2 Maximum Line Current 1 9 Technique Factors That Constitute Maximum Line Current Maximum line current will occur during exposures of 100 kVp 300 mA ...

Страница 18: ...must be upgraded to 125 Amp for operation below 240 VAC as indicated by the line currents listed in Table 1 2 above 1 11 Preliminary Room Inspection Prior to beginning installation inspect the x ray room to verify compliance with specifications for the following Incoming Line Service Disconnect Lead Shielding per local code Conduit Space Requirements 1 12 Unpacking Upon receipt of the x ray genera...

Страница 19: ...table base leveling feet union a solid one piece structure minimizing any wobble or table base motion Position the table close to its final location using the leveling feet and spacers to bring the table close to level at this time Final leveling can be done at end of assembly 2 2 High Voltage Generator and Transformer placement 1 Verify that the oil level in the HV transformer is approximately 1 ...

Страница 20: ...tructions on this type of table 2 3 1 For Standard Fixed Top Table 1 Remove tubestand stop from the left end of the table s lower rear rail See figure 2 2 Position the tubestand so that it is a few inches from the end of the back rail of the table with the lower tubestand bearings in line with the back rail See figure 3 Figure 2 Back Rail and End Stop Figure 3 Tubestand Positioning AWK286 01 AWK28...

Страница 21: ...er bearing rail Now straighten the tubestand and push it completely into the upper and lower bearing rails See figure 4 4 Reinstall the tubestand stop on the lower rail If leveled properly in step 2 1 the tubestand should glide easily from end to end and stay in position without drifting to either side AWK286 03 Figure 4 Mounting Tubestand to Lower Rail ...

Страница 22: ... the bearing tracks raise the frame slightly to gain access to the four small Phillips head screws which secure the table top frame s bearing track at the exterior head end of the table Remove these four screws sliding the bearing track forward See figures 5 and 6 C Manually release the transverse lock solenoid pins and slide the table top frame forward to expose the upper tubestand bearing rail 3...

Страница 23: ...epeating step 2 above in reverse Replace the tubestand stop on the lower rail If not done previously remove the phenolic tabletop panel at this time via the nuts located at the underside corners of the tabletop frame Figures 5 and 6 Exposing Upper Rail For Mounting Tubestand ...

Страница 24: ... 1 and 4 on the DB9 connector or across pins 1 and 2 at the roll potentiometer Resistance should read 500ohms 20 at 0 degrees If adjustment is necessary rotate the tube arm shaft until the correct resistance is achieved Once proper resistance is set install the tube arm locking knob to secure the tube mount to the tube arm shaft 3 Install the tube mount assembly by inserting the 1 1 2 diameter tub...

Страница 25: ... bag The cable drape brackets are installed above and below the handle on the right side of the tubestand Loosely drape the HV cables with the collimator and stator cables within the brackets until the vertical slide has been freed to move The cables will route directly into the right rear of the table base above the lower tubestand rail ...

Страница 26: ...ng holes at the bottom of the operator s console Use this hardware to mount the operator console to the tube arm Ensure hardware is tight 2 Route the roll potentiometer cable under of the x ray tube and connect to the operator s console at the middle DB9 connector Ensure the connection is secure 3 Route the communication cables under the tube and along side the high voltage cables and rotor cable ...

Страница 27: ...n on generator connections and all other electrical issues related to this system WARNING Any excess amount of communication cables should be bundled outside of the power module enclosure Fold and tie the cables together carefully in a fashion that avoids any large area loop as shown below ...

Страница 28: ...ated with care Only properly trained and qualified personnel should be permitted access to any internal parts 4 It is now safe to remove the shipping bolts which lock the main counterweight and vertical carriage together taking care to insure that the counterbalance is adequate to avoid uncontrolled motion of the vertical slide Remove the back panel of the tubestand for access to all tubestand adj...

Страница 29: ... bin through the holes in the front edge of the appropriate side of the table and secure it using the hardware provided Bolt the back side of the film bin to the rear of the table using the bolts provided Install the plastic organizer in the top drawer of the film bin Note that for left hand film bins the control serial tag may be partially obscured Be certain to record the control s serial number...

Страница 30: ... counterclockwise to lower the tube arm Replace the decorative hole cover when finished leveling 3 2 40 Inch SID Detents To position the tube 40 from either the table top or the film cassette detents are provided These detents are factory adjusted however some adjustment is provided if needed Access to the adjustments is from the rear of the tubestand 3 3 Verification Of X Ray To Light Field Coinc...

Страница 31: ...nd 2 Any front to back adjustment of the central ray after the arm has been leveled from 3 1 above can be achieved by loosening the tube arm collar screws and sliding the tube arm shaft within the collar to achieve proper alignment Total adjustment is inches 3 5 Securing Table To Floor Once the table is in final position and all checks have been made it can be secured to the floor using the four 4...

Страница 32: ...xtension For Fixed Top tables only The table top extension adds 12 of additional table top surface and can be mounted on either end of the table To attach the extension align notches in extension with buttons mounted on end of table support and slide over buttons 4 2 Animal Restraints The animal restraints used are nautical style tie down cleats They are screwed to the underside of the table top f...

Страница 33: ...each guide pin in place with the cotter pin provided 3 Bolt the foot treadle brackets to the underside of the table base using the hex head bolts provided 4 Plug the foot treadle cable into the S4 location of the junction box at the right side of the table frame 5 Remove Power Module from the table and remove the enclosure 6 Remove the front panel of the Power Module Install the air switch packets...

Страница 34: ...n 8 5 2 Installation Items and Test Equipment The following test equipment is required for the installation Fluke Digital Multimeter or equivalent Machlett Dynalyzer or equivalent high voltage divider for kVp and mA values Keithley dosimeter or equivalent for linearity and reproducibility Tektronics 210 dual trace storage oscilloscope or equivalent for waveform shape The following miscellaneous it...

Страница 35: ...s from each side of the cover located near the front and two screws from the back located near the bottom Lift the cover up slightly and back from the Power Module frame All cables will exit the front 5 3 3 Access to the High Voltage Transformer Terminal connections P1 P2 and GND can be accessed by removing the two screws at the terminal cover on top of the unit Cathode is left anode is right The ...

Страница 36: ...oard 01392 000 Extended Memory Card Board 00417 000 Memory card 5 4 2 Power Module 01003 000System Controller Board 01780 000IPM Driver Board 2 each 01770 000Filament Driver Board K444 Rotor Sense Board K660 Relay board K445 Charge Monitor board 01710 000 ON OFF board K650 Power Supply Board Figure 8 Power Module and Transformer in Table Base FRONT VIEW ...

Страница 37: ...InnoVet Select HF APR Service Manual 37 Figures 9 and 10 Power Module Interior ...

Страница 38: ...e Power Module close to the front of the table but not inside leaving access on all sides This allows the installer to establish the proper wiring routing and lengths for all cables 6 3 Operator s Console Run the two communication cables from the operator s console to the Power Module See section 2 5 for mounting the operator s console and communication cable routing 6 4 Transformer Installation P...

Страница 39: ...nated at the connections labeled P1 P2 and GND 6 6 Connecting the Mains Input Voltage 240 VAC Input Single phase power is terminated at the line fuses F1 F2 in the Power Module This Fuse Block is located on the right side of the Power Module Ground is connected to the Ground Stud just below and to the left of the fuse block Wires 1 1B and 2A should be on TB1 2 the 240 V tap Wire 2J must be on TB2 ...

Страница 40: ...oming power supply at the service disconnect Remove the Power Module cover see the service manual for details as required 2 At the bottom of the Power Module locate two 5 16 threaded holes Place mounting bracket above them and secure with 5 16 18 x lg bolts and locking washers 3 Carefully place the toroid line matching transformer with rubber gasket inside the bracket as shown below so as not to s...

Страница 41: ... 1 HZ02 BOLT 3 8 16 X 4 1 2 HEX HD 7 2 HE81 SCREW 5 16 18 X HEX HD 8 1 01026 WELDMENT BRACKET 9 1 L321 ASSEMBLY INSTRUCTIONS 5 Depending on which kind of AUTO X FRM connect the transformer leads to the right side of TB1 in the Power Module as shown in the pictures below 1 256 TB1 2 3 220 240 4 5 120 208 6 0 SEE NOTE 6 240 256 2 1 TB1 220 208 120 0 3 4 5 6 COLORED LEADS BLK BRN RED ORG YEL AND PURP...

Страница 42: ... TB1 tap which most closely matches the incoming line voltage 208 VAC or 220 VAC 7 On TB2 located just in front and to the right of TB1 verify the following connection The wire labeled 2J should be on TB2 1 the terminal labeled 240 8 When all connections above have been verified it is safe to turn on the mains input voltage Confirm that the voltages on TB1 and TB2 are correct as referenced to the ...

Страница 43: ...pping or banging on the floor This can deform the threads making it difficult to install them fully into the HV receptacles Use a clean dry lint free cloth and alcohol to clean the insulating surfaces of the terminals and receptacles Use particular care in cleaning the flat insulating surface Do not touch the insulating surface after cleaning Apply vapor proofing compound to both cable plugs at ea...

Страница 44: ...e into the front of the Power Module down and along the right side of the divider wall to the rear of the unit It will then go up through the access hole down the left side of the divider wall along the bottom rear and around to TB3 which is located at the rear left of the Power Module This routing keeps the stator cable away from the more noise sensitive components such as the System Controller b...

Страница 45: ... Collimator cable C2 TB5 13 24 VAC Collimator cable GND TB5 11 GROUND Collimator cable CSW1 TB5 5 Hip switch Collimator cable CSW2 TB5 6 Hip switch Table Interface cable BROWN TB5 2 Common Table Interface cable BLUE TB5 4 Exposure Table Interface cable RED TB5 5 Hip switch for collimator Table Interface cable GREEN TB5 6 Hip switch for collimator Table Interface cable ORANGE TB5 7 24 VDC Table Int...

Страница 46: ...switch S2 TB5 3 Prep Traditional Two stage Footswitch S3 TB5 4 Expose 6 11 Interlocks There are two possible interlocks besides the thermal interlock from the x ray tube Terminals TB3 6 and TB3 8 are provided for connection of an isolated switch contact for collimator interlock If the collimation is manual jumper these two points Terminals TB3 5 and TB3 8 are provided for connection of an isolated...

Страница 47: ...s imperitive that all service personnel are respectful of the significant shock hazard the capacitor bank voltage represents Prior to servicing the power components ensure that the LED on the Charge Monitor PCB is not lit and verify there is no capacitor bank voltage with a DC voltmeter 7 2 System Configuration System configuration will be done via the Operator s Console in the utility section of ...

Страница 48: ...Operation mA feedback ENABLED ON DIP1 5 Normal Operation Not used DIP1 6 Normal Operation Not used DIP1 7 Normal Operation Not used DIP1 8 Normal Operation When booted up in cal mode this reloads the factory defaults for all configuration and calibration data Used to clear E14 Table 7 1A DIP1 Functions System Controller PCBA DIP Switch OPEN OFF CLOSED ON DIP3 1 Normal Operation Sets mA feedback sc...

Страница 49: ... Operator Console ON key and observe the display screen during the start up phase The screen will display the date and time and the choice of APR or MANUAL 2 Point mode of operation Note that in MANUAL mode of operation EXPOSURE COUNT can be selected to momentarily display the total number of exposures taken on this x ray control 7 3 2 Status LEDs Upon power up there are a number of LEDs which wil...

Страница 50: ... AC Voltages Fuse Rating Function F1 50 Amp Time Delay Mains F2 50 Amp Time Delay Mains F6 10 Amp Time Delay 240 VAC autotransformer return F7 10 Amp Time Delay 240 VAC autotransformer hot F8 7 Amp Time Delay Collimator supply F9 5 Amp Time Delay Electric lock supply 24 VDC F10 1 Amp Time Delay Relay pcb supply F11 0 8 Amp Time Delay 12 VAC Console supply F12 1 5 Amp Time Delay Bucky supply Not us...

Страница 51: ...while pressing the ON button The CAL BOOTUP screen will display as shown below BACK DATE AND TIME Allows the user to program local time TUBE ROLL CAL Allows the installer to calibrate the tube roll potentiometer XRAY CAL Installers access to configuration and calibration screens EDIT APR MODE Allows the user to make changes to the technique database RENAME TECH Allows the user to add more techniqu...

Страница 52: ...and tube head until the primary beam is pointed vertically downward This will be the 0 degree point Use a level to verify this position Push the SAVE 0 DEG up down buttons to input this setting Unit will give an audible tone and display SAVING 0 degree calibration is complete 3 Rotate the entire operator s console and tube head to the right until the primary beam is horizontal This will be the 90 ...

Страница 53: ... to access the XRAY CAL screen Unauthorized changes by persons unfamiliar with the system will cause equipment damage NOT COVERED BY WARRANTY The XRAY CAL screen will display as shown below TUBE SETUP To select x ray tube type used at this installation while either keeping existing calibration values or loading factory default calibration values for this tube type PWR MOD SET To select kW configur...

Страница 54: ...WR MOD SETUP screen will display as shown below KW LIMIT Sets kW limit adjustable in 1 kW increments Values lower than 30 allow for operation on poor power lines where line voltage drop is a problem Maximum mAs and mA will not be affected only kW T RECP Toggles between BUCKY GRID grid cabinet and OFF no receptor W RECP Toggles between BUCKY GRID grid cabinet and OFF no receptor SHUT DOWN TIME Sele...

Страница 55: ... and mA Their use will be described in Section 9 Generator Calibration 8 7 MORE Screen This screen is reserved for factory use only Changing the factory defaults for FIL2 and FIL4 will put the x ray tube at risk and void warranty There are no values in this screen that may be changed in the field XRAY CAL MISC 1 FIL 2 A 0 14 FIL 4 A 0 22 REV LCD N E CNT RESET SAVE PAGE ...

Страница 56: ...d the mA waveforms simultaneously when calibrating the system The PWR MOD CAL screen is set up to allow control of mA leading edge stabilized mA and stabilized kV all at one time 9 1 Required Equipment for Calibration Recommended test equipment is as follows Dual trace storage oscilloscope mR meter for verification of linearity and reproducibility Dynalyzer or equivalent If Dynalyzer is unavailabl...

Страница 57: ...al output and the scope the proper waveshape Connect the scope to the kV and mA test points on the 01003 000System Controller board Set the scope to trigger from the kV waveform TP8 is the kVp feedback test point One volt is equal to 33 3 kVp TP9 is the mA test point One volt is equal to 100 mA TP2 is ground The test points are located in the upper left hand corner of the 01003 000System Controlle...

Страница 58: ... achieve proper output Second set mA leading edge for Large filament With DIP1 4 still OFF initially select 50 kVp 50 milliseconds and 200 mA If the leading edge of mA needs adjustment press MASTER mA and increment or decrement the LG F S value that displays in the lower left corner and SAVE Press the BACK button and repeat as needed to achieve proper output Now select 300 mA and verify output aga...

Страница 59: ...creen will display as shown below Select XRAY CAL and enter the password upper left lower left lower right upper right outer most arrow keys The XRAY CAL screen will display as shown below Select PWR MOD CAL The PWR MOD CAL screen will display as shown below SET DATE CAL BOOTUP TIME EDIT APR MODE RENAME TECH TUBE ROLL CAL MEMORY FUNC XRAY CAL EXIT TO RAD XRAY CAL TUBE SETUP AEC WALL SET PWR MOD SE...

Страница 60: ... and increment or decrement the value for LG F S that appears in the lower left corner of the screen as shown below and SAVE the change Press the BACK button to return to the exposure screen Repeat as needed to achieve the proper mA amplitude and mAs Using the same kVp and time now select 300 mA and verify mA output If adjustment of mA leading edge is needed at 300 mA press the MASTER mA button ch...

Страница 61: ...number at these points as needed to fine tune the mA leading edge to achieve a square waveform of the proper mAs 7 Calibration of kVp Select 70 kVp and 50 mA Select a time appropriate to your test equipment not less than 100 milliseconds The MASTER kV adjustment will appear in the upper right corner of the screen as shown below Take exposures and adjust the kVp by changing the MASTER kV value One ...

Страница 62: ...g edge with the mA stations in columns and the kVp stations in rows Notice how the numbers neatly decrease as kVp increases space charge compensation and how for a given kVp the values increase as mA increases Table 9 1 Typical Filament Values for a Toshiba 1 x 2 mm X ray Tube FIL TABLE 50 mA 100 mA 150 mA 200 mA 250 mA 300 mA 40 kVp 4 30 4 57 4 54 4 64 4 74 4 83 50 kVp 4 28 4 54 4 51 4 61 4 71 4 ...

Страница 63: ...the XRAY CAL screen in the tables below for future reference Table 9 2 For Recording FILAMENT AMPS Calibration Values SMALL FILAMENT LARGE FILAMENT 50 mA 100 mA 150 mA 200 mA 250 mA 300 mA 40 kVp 50 kVp 70 kVp 90 kVp 110 kVp 125 kVp Table 9 3 For Recording MASTER kV and MASTER mA Calibration Values MASTER mA Small Focal Spot MASTER mA Large Focal Spot MASTER kV Note that in APR edit mode only 100 ...

Страница 64: ...ble 10 1 Table of Error Codes Error Code Likely cause How to clear the fault Secondary actions INVALID kVp LIMIT Operator Selected value out of range Release kVp button Unit resets to valid techniques INVALID mAs LIMIT Operator Selected value out of range Release mAs button Unit resets to valid techniques INVALID TUBE LIMIT Operator Selected value out of range Release the button kVp and mAs are re...

Страница 65: ...03 000pcb Cycle power The filament is disabled ERROR NO COMM RESTART SYSTEM Communication cables Cycle power find break in serial link ERROR 12 v LIMIT RESTART SYSTEM Power supply pcb lock noise or DC fusing Cycle power put diodes across locks find damaged component ERROR EEP R W The calibration data checked during operation is corrupted Cycle power Call for service See troubleshooting guide below...

Страница 66: ... or opto chip on 01003 000pcb Verify TB3 6 is at ground Press any button ERROR GENRL INTLK Open connection or opto chip on 01003 000pcb Verify TB3 7 is at ground Press any button ERROR DC BUS LOW RESTART SYSTEM Checked at prep not enough capacitor bank voltage Cycle power and find damaged component Confirm K1 BR1 R1 K660 Relay pcb and K445 Charge Monitor pcb are OK ERROR STILL ANODE No rotor curre...

Страница 67: ...lament pcb or poor mA leading edge calibration Press any key Check filament pcb and mA output with and without feedback ERROR EXP RELEASE Prep exp switch or operator error Press any key ERROR IPM OVERLOAD RESTART SYSTEM Excessive current through inverter Cycle power Find defective components See Trouble shooting Guide below ERROR kVp OVERLOAD Secondary arcing kVp 135 Press any button Inspect secon...

Страница 68: ...en power is OFF See Memory card function section 11 INVALID CAL DATA LMT Attempted data entry beyond limits Release button ERROR APR CHECKSUM A change in APR data since last power up Press any button Reburn APR defaults from the memory function screen or load APR data from a Memory Card INVALID TUBE ANGLE Roll Angle potentiometer is out of range Perform roll pot pre set procedure Calibrate roll po...

Страница 69: ...s too high or too low The mA stabilizer can overcompensate for the filament number and generate this error code Confirm feedback circuit integrity of about 68 ohms between H9 4 and H9 5 as well as between H9 4 and H9 6 on System controller pcb Also inspect the Filament pcb for shorted components mA OVERLOAD Excessive mA Can come from poorly adjusted mA stabilizer or leading edge Secondary arc in t...

Страница 70: ...anual 70 INVALID TUBE ANGLE Roll potentiometer is either disconnected or out of range Chech all connections on the roll assembly located on the tubearm assembly Follow the pot pre set procedure and calibration procedure if necessary ...

Страница 71: ...000System Controller pcb the rotor and filament interlocks and feedbacks are disabled In this condition the generator will make kVp but not mA and will not spin the anode of the tube This allows potential to be placed on the high tension transformer Monitor the kVp feedback test point TP8 on the System Controller pcb to look for evidence of high voltage breakdown such as spikes to high potential o...

Страница 72: ... Console will display as shown below DEFAULT VET To reload factory defaults into both Power Module and Operator Console for APR techniques or calibration Memory card not required CARD TO CONS To download modified APR techniques from the Memory Card into the Console CONS TO CARD To upload modified APR techniques from Console to Memory Card PM TO CONS To reload the factory default values from the Po...

Страница 73: ...he bottom of the operator s control near the center Before selecting any memory card functon insert the card into the slot Memory card orientation is important ensure the THIS SIDE UP label is towards you when inserting The memory card should glide in with out any difficulty Do not force the memory card into position ...

Страница 74: ...the user or service personnel to replace the existing APR techniques with the factory default values one anatomical region at a time Choose a region and respond NO or YES DFLT CAL DAT allows the service personnel to reload the factory default calibration data into the Power Module and Console Because calibration data is involved this screen is protected by the XRAY CAL screen password Enter the pa...

Страница 75: ...EMORY FUNCTIONS screen and select PM TO CONS This will re copy the existing calibration data from the power module into the operator console and clear the error 11 6 The CONS TO CARD screen The CONSOLE TO CARD screen allows uploading APR technique database information from an Operator Console into the Memory Card This can be useful for on site back up storage of a modified APR database or for carr...

Страница 76: ...rator specifications even if the test equipment is at the maximum of it s error range The formula for this calculation is Generator accuracy test equipment accuracy performance standard For instance if the generator kVp accuracy is 5 and the test equipment has a 2 error subtract 2 from 5 to achieve a new required system accuracy of 3 1 kVp SAMPLE CALCULATIONS For 40 kVp the output must be within 4...

Страница 77: ...d system accuracy by subtracting test equipment error using the methods described above and record the error percentage Table 12 1 Table for Recording kVp and mAs Outputs Selected kVp Measured kVp Selected mAs Measured mAs kVp error mAs error NOTE If the unit does not meet the accuracy specifications view the mA and kVp waveforms verify calibration and check for line voltages below 230 VAC in eith...

Страница 78: ... tightness of connections High Voltage cables inspected for signs of breakdown abrasion or wear receptacles regreased and tightened into the HV transformer and x ray tube Line voltage checked and TB1 TB2 verified to be set properly for the supply Power module internal connections checked for wear binding and tight connections Communication cables checked for wear or binding and tightness of connec...

Страница 79: ...InnoVet Select HF APR Service Manual 79 Table 13 1 Required Maintenance Log Date of maintenance Performed by Notes and results ...

Страница 80: ...and compared to the data in the Power Module to confirm data accuracy It is possible to upload site specific calibration data from the Power Module in the event of changing to a new Console The factory default values for calibration and APR techniques can be reburned into the Console APR techniques can be uploaded to a Memory Card or downloaded from a Memory Card into the bottom of the Console if ...

Страница 81: ... IPM Driver pcb 01780 000 K594 schematic Rotor Sensor pcb K444 K653 schematic Power Supply pcb K650 K662 schematic Relay pcb K660 K669 schematic HV Rectifier pcb K467 01794 000 schematic System 30 kW 1 phase L112 schematic HV Capacitor pcb L110 L512 schematic 20 kHz OEM APR Console pcb L510 01005 000 schematic System Controller pcb 01003 000 01772 000 schematic Filament Driver pcb 01770 000 01362 ...

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