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Control Panel

9 - 5

DC to DC Converter

Refer to Figure 9.2.

The DC to DC converter is responsible for conv26 volt (sup-
plied through the interconnect cable) to a reg5 volts, in order
to power the digital circuitry. The method of regulating the +5 volts
supply is like that used on the Power Supply Card.

+5 Volt Regulator
Circuit

The +26 volt supply is filtered and regulated to +5 volts using Pulse
Width Modulator (PWM IC) U17, switching the +26 volt supply through
FET Q4. Pins 11 and 14 of U17, will pulse low then high, at a fre-
quency determined by R30, R31, and C38 (approximately 150 KHz).
The pulses are ORed through D5 and D8, and applied to Q5 and Q6,
which pulse the gate of FET Q4. Zener diode D9 protects Q4 by limit-
ing the gate to source voltage to a maximum 15 volts. The output of
Q4 is filtered by inductor L1, capacitors C26 and C52, and load resis-
tor R12.

Regulation of the +5 volt supply is through the PWM and support cir-
cuitry. Resistor R32 and R33 establish reference at U17 pin 2. +5 volts
is coupled back to U17 pin 1, through a voltage divider network of R28
and R34. Voltages are compared to determine pulse width at U17 pins
11 and 14. If voltage is low, pulse width is lengthened to increase volt-
age; if voltage is high, pulse width is shortened to decrease voltage.

+5 Volt Overcurrent
Protection

The +5 volt supply has overcurrent protection circuitry which will shut
down the PWM IC (and the +5 volts) if current exceeds 2-4 amperes.
If voltage across sampling resistor R13 exceeds a certain value, Q2
and Q3 conduct, s10 to +12 volts through Q3, to U17 pin 10
(Shut Down), which stops pulses at pins 11 and 14. The PWM IC will
restore the +5 volts if the overcurrent condition is eliminated.

+5 Volt Overvoltage
Protection

+5 volts overvoltage protection is provided by 6.2 volt zener diode D8,
and 3 amp picofuse F1. If supply rises above +5 volts, D8 conducts,
drawing current. If voltage continues to rise, D8 will breakdown, short-
ing the +5 volts supply to ground. The combination of voltage and cur-
rent drawn when D8 shorts, will cause F1 to open, re26 volts
from the PWM IC.

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Содержание ProVis Mark V

Страница 1: ...Service Manual KMP 870 98411 T 205 Rev D...

Страница 2: ......

Страница 3: ......

Страница 4: ......

Страница 5: ...e 2 1 Disclaimers 2 2 Address Telephone 2 2 Introduction to Warnings and Cautions 2 3 Statement of Intended Use 2 3 Contraindications 2 3 Warnings 2 3 Cautions 2 5 3 Condensed Operating Guide Control...

Страница 6: ...Operation 8 1 Block Diagram PPI Card 8 2 9 Control Panel Control Panel Summary of Operation 9 1 Controller Card 9 2 Block Diagram Controller Card 9 4 DC to DC Converter 9 5 Block Diagram DC to DC Conv...

Страница 7: ...Interface 14 1 Interfacing Cautions 14 2 Imaging System Interface Circuits 14 4 Block Diagram Imaging System Interface 14 6 Z5 Option 14 7 Schematic Siemens Interface 14 8 Schematic Phillips Interfac...

Страница 8: ...ment 16 10 Display Card 16 11 Controller Card 16 12 Injector Head Covers 16 13 Syringe Heat Maintainer 16 14 Plunger Position Pot 16 16 Mechanical Stop Pot 16 19 Plunger Motor Drive Belt 16 21 Plunger...

Страница 9: ...PRM 200 50 XXX PPD 220 50 60 XXX PRM 220 50 60 XXX PPD 240 50 XXX PRM 240 50 XXX All Mark V ProVis models are designed to be in compliance with EN 60601 1 Safety and EN 60601 1 2 EMC Emissions Repres...

Страница 10: ...ions with attached accessory equipment shall comply with the system standard IEC 601 1 1 Anyone who connects additional equipment to the signal input or output configures a medical system and is there...

Страница 11: ...or symbols are of special significance WARNING Indicates a potentially hazardous situation If not avoided this could result in death or serious injury CAUTION Indicates potential hazards or unsafe pra...

Страница 12: ...Do not use the system if any of the cords or cables show signs of damage Any damaged or worn connection cables or power cords should be replaced Check for proper voltage and frequency before connectin...

Страница 13: ...able mounts when power is applied may result in equipment damage Allow system temperature to stabilize before use When the system is exposed to an extreme temperature change heat or cold allow it to s...

Страница 14: ...o these pins can damage the injector and void the warranty Excess noise on these lines may cause intermittent problems of prema ture or no injections The Remote Start Signal from the film changer prog...

Страница 15: ...Operating Guide 3 1 3 Operating Guide...

Страница 16: ...Mark V ProVis Injection System 3 2...

Страница 17: ...procedures 1 Inspection This first step should encompass inspection of the entire system looking for obvious signs of damage such as cracks in the housing frayed or worn cables missing or damaged labe...

Страница 18: ...otocol may require elec trical leakage checks at more frequent intervals If this applies local regulations for leakage must be followed MEDRAD also recommends that a complete system calibration and pe...

Страница 19: ...lluminated while installed on the pressure jacket syringe the heater is too hot and should be replaced 3 Inspect the cable and connector for cracks worn areas loose pins or a loose strain relief Contr...

Страница 20: ...he injector head from the support arm Contact MEDRAD Factory Service for support arm replacement information Counterpoise Systems 1 Inspect all parts of the mounting system for cracks and other defect...

Страница 21: ...t from the entire length of the piston rod CAUTION Do not soak or immerse any parts of the injector in water Improper or careless cleaning methods may result in equipment damage While cleaning the out...

Страница 22: ...age should be less than 100 micro amps at 110V or 300 micro amps at 220V 2 With the AC ground open power applied and the line reversed leakage should be less than 100 micro amps at 110V or 300 micro a...

Страница 23: ...ntrolled by both the enable lines from the memory I O decoder and the Read Write lines from the CPU EPROM chip U24 is only accessed when switch SP2 2 is set to the U24 position If this chip must be re...

Страница 24: ...CPU operations will be interrupted The pulses are generated on the I O Card by decoding a CPU address A loss of these pulses is most likely the result of a problem with the CPU or the EPROMs Test Sect...

Страница 25: ...ip CTC U4 and provides data direction control for data buffer U22 Parallel Input Output Chip Parallel I O chips permit the CPU to access external inputs and to con trol outputs PIO1 The inputs to U6 a...

Страница 26: ...performs Flow Rate and Volume Limit calculations This interrupt is not externally triggered but driven from the time divided clock generator Test Decoder This 4 16 channel decoder U2 provides Reset pu...

Страница 27: ...control the A D converter U1 starting the A D con version when the data is ready and enabling buffers U2 and U3 to transfer the converted word to the data bus DAC Decoder Decoder U14 with U18 and U6 p...

Страница 28: ...s signal is sent to the Multiplexer and through Unity Gain Buffer U26C to the Mechanical Stop Drive Card Velocity Signal DAC The output of this DAC is a digitized velocity signal sent to the Imag ing...

Страница 29: ...enuate the flow rate selected signal during ML MIN and ML HR flow scale injections Standby Reset Circuit Driven by the INJECT signal Q8 Q9 and Q10 control the flow rate integrator U29 During standby t...

Страница 30: ...Mark V ProVis Injection System 7 4 Figure 7 1 Block Diagram Servo Control Card...

Страница 31: ...Servo Control Card 7 5...

Страница 32: ...ot agree latch U11 sends a signal MEMERRINT enabling the CTC on the I O Card to interrupt the pro cessor Analog Switches The enable lines for the memory chips are switched through U16 When power is ap...

Страница 33: ...horted state should be maintained for several seconds to ensure complete and proper clearing NOTE To clear PPI Memory in Pedestal systems remove the rear panel access doors then depress the PPI Reset...

Страница 34: ...out These devices receive data and control information from the Controller Card Numeric Display Drivers and Numeric Displays Three display groups are used to display injection parameters on the Contr...

Страница 35: ...ce logic CPU The CPU U13 is supported by 64 Kbytes of EPROM PROM pro gram memory and 8 Kbytes of RAM The processor interfaces with the remaining logic through an 8 bit data bus 16 bit address bus and...

Страница 36: ...th the RS 232C communication standard Line Receivers Level converting receivers in U20 change incoming RS 232C signals 10 VDC into 0 and 5 VDC signals respectively These signals are then compatible wi...

Страница 37: ...Mark V ProVis Injection System 9 4 Figure 9 1 Block Diagram Control Panel Digital Logic...

Страница 38: ...istor R32 and R33 establish reference at U17 pin 2 5 volts is coupled back to U17 pin 1 through a voltage divider network of R28 and R34 Voltages are compared to determine pulse width at U17 pins 11 a...

Страница 39: ...Mark V ProVis Injection System 9 6 Figure 9 2 Block Diagram Control Panel DC to DC Converter...

Страница 40: ...s and controls power to the Injector Head Plunger Motor The Power Drive Circuit is located primarily on the Power Drive Card The Safe relay Reverse relay and selected output stage components are locat...

Страница 41: ...current Shutdown compara tor U1A The inverting input to U1A is connected to a voltage divider establishing an Overcurrent Shutdown reference When output of U1D rises above reference voltage at U1A the...

Страница 42: ...ng a positive pulse 10v to 10v which resets Ramp Generator U5C when the input sine wave passes through zero These pulses are also applied to Full Error Trigger Q9 through D6 and R30 to fire the SCR br...

Страница 43: ...nal is too large input of U5B stays above zero consequently output is held in positive saturation When this occurs positive pulses from Zero Crossing Detector U4D will make Q9 conduct This transition...

Страница 44: ...resistor which is in series with the motor Output of U1D is a negative voltage proportional to motor current This signal is used by Velocity Amplifier U2B Auxiliary Monitor U2C and Overcurrent Shutdo...

Страница 45: ...g a signal to U16 PIO3 on the SCC prompting the system to terminate the injection Excessive Motor Voltage The non inverting input to U2C receives the output of Brake Compara tor U2D Input to U2D is Ov...

Страница 46: ...signal is inverted by U5A and summed with the Load Profile at the inverting input to U5D If there is a negative difference actual plunger rate is below the desired plunger rate U5D will increase the e...

Страница 47: ...Mark V ProVis Injection System 10 8 Figure 10 1 Block Diagram Power Drive Card International PDCI and Associated Circuitry sheet 1 of 2...

Страница 48: ...Power Drive Circuit 10 9 Figure 10 2 Block Diagram Power Drive Card International PDCI and Associated Circuitry sheet 2 of 2...

Страница 49: ...Mark V ProVis Injection System 10 10 NOTES...

Страница 50: ...etermine the duty cycle for Q4 vary proportionally to the amplitude of the error signal from U2B Drive Transistor Motor power is controlled by Q4 through the contacts of relay K1 Direction Relay Contr...

Страница 51: ...A pair of normally closed contacts on the Safe Relay complete the path for 26 VDC to the Mechanical Stop Drive Card which enables the motor to run while the injector is disarmed When the injector is...

Страница 52: ...e pulses are ORed through D3 and D4 and applied to Q3 and Q5 which will pulse the gate of FET Q4 Zener diode D2 protects Q4 by limiting the gate to source voltage to a maximum of 15 volts The out put...

Страница 53: ...d 3 15 amp fuse F6 If the supply rises above 5 VDC D6 begins to conduct and draw current If voltage continues to rise D6 will breakdown and short the 5 VDC supply to ground The combina tion of voltage...

Страница 54: ...cale Overlay Plate Contains the forward and reverse load controls and indicators that show armed status selected syringe size piston position Volume Remaining and Mechanical Stop position status Turre...

Страница 55: ...e of contrast media in the syringe Syringe temperature is maintained through thermostats and an over temperature sensor indicator in the pod Supply voltage 26 VDC comes from the power supply A 2 pin c...

Страница 56: ...pulse is applied to the inverting input of U2A pin 6 switching the output to negative This negative output is applied to the trigger input of U1 pin 2 producing a positive pulse for U2B Pulse duratio...

Страница 57: ...ger position voltage increases When the reference input is reached U1B goes to zero making Z1 9 1 volts zener diode conduct clamping the forward load command base of Q3 to 9 1 volts driving the motor...

Страница 58: ...Mechanical Stop is in position and that the injector is armed When the injector is armed the software sends a position command to the Mechanical Stop DAC producing an analog command voltage for the M...

Страница 59: ...17 while the inverting input pin 8 receives the buffer plunger position voltage from U3A When the piston is not at full forward limit voltage at pin 9 is greater than that at pin 8 making the output o...

Страница 60: ...Injector Head 13 7 Figure 13 1 Block Diagram Head Card...

Страница 61: ...Mark V ProVis Injection System 13 8 NOTES...

Страница 62: ...ontrol and synchronization of the injection for remote monitoring NOTE When reference is made to input and output the refer ence is in respect to the injector To achieve control and synchronization ei...

Страница 63: ...ected volume and the unit will remain armed If a start signal is received at this time an additional injection will result at the selected Flow Rate and Volume It is recommended that the remote start...

Страница 64: ...Imaging System Interface 14 3 Figure 14 1 Connector Locations...

Страница 65: ...arts by the oper ator when connected to an imaging system When the external switch closes relay K3 energizes and disables the handswitch circuit When the external switch opens the handswitch circuit a...

Страница 66: ...is 28 VDC at 1 amp Armed Output Signals J40 pins 3 and 4 provide an Armed output signal or an Extended Armed Output signal as detailed below At installation switch S3 or jumper JU2A is used to select...

Страница 67: ...Mark V ProVis Injection System 14 6 Figure 14 2 Block Diagram Imaging System Interface...

Страница 68: ...elay SR4 in the Siemens equipment interface The other side of SR4 is connected to Buffered Ground BGND through J40 pin 3 When SR4 energizes 26VDC is supplied to one side of coils of Siemens interface...

Страница 69: ...igure 14 3 Schematic Siemens Interface with Switchbox Option The Siemens table can be fitted with an adaptor MEDRAD catalog number SCK 100 which allows the Injector Head to be mounted directly to the...

Страница 70: ...9 Figure 14 4 Schematic Phillips Interface XMC 935 The Phillips table can be fitted with an adaptor MEDRAD catalog number PCK 100 which allows the Injector Head to be mounted directly to the table Con...

Страница 71: ...Mark V ProVis Injection System 14 10 NOTES...

Страница 72: ...for minor troubleshooting and calibration not for major repairs Tektronix 465 or equivalent Leakage Tester for checking line leakage Stopwatch or Timer KSP 591 25 pin card cable extender for PSC and M...

Страница 73: ...vice Access Card is inserted in the spare slot on the right side of the Console providing easy access to test points for troubleshooting and testing All signals are clearly marked on the card next to...

Страница 74: ...Fwd or Rev Indications Fwd activated 0 VDC Rev activated 0 VDC 5 ERROR SIG Standby Loading 0 Error Signal Between zero and 15 VDC during an injection Less than 6 VDC during most injections 6 MSPOS 0...

Страница 75: ...J START 5 VDC when start switch open 0 to Inject Start 0 1 VDC when start switch closed 16 INJECTING Zero during standby 5 VDC when Injecting injecting immediately returns to zero at injection end no...

Страница 76: ...16 VDC ml 6 4 VDC at 40 ml sec 200 ml syringe 0 12 VDC 4 8 VDC at 40 ml sec In ml min or ml hr less than 0 2 VDC 25 150 200 ENABLE 60 ml 5 VDC 150 200 Enable 150 ml 0 VDC 200 ml 5 VDC 26 F C START F C...

Страница 77: ...ock Hazard Hazardous voltages exist within the injection system that can shock burn or cause death To avoid injury the system should be opened and serviced by qualified service personnel only Disconne...

Страница 78: ...ol Unit to remove re seat the cards Remove each circuit card While the cards are out ensure that the socketed IC s are fully inserted Reseat the cards ensuring that the cards are fully inserted into t...

Страница 79: ...process is shown on the following pages 10 For assistance in determining the cause of a condition or in obtaining replacement cards subassemblies and parts contact MEDRAD Factory Service or your local...

Страница 80: ...uits Isolate the condition to a board or boards replace the board s or troubleshoot to component level See Figure 15 2 below Figure 15 2 Suggested Troubleshooting Sequence 1 Condition 2 Message or Sym...

Страница 81: ...A FUNCTION An attempt was made to enter a value without first activating an injector function Press a Delta button before pressing any number buttons ADVANCE TO MAX LEVEL THEN ARM An attempt was made...

Страница 82: ...d is not within allowable limits Procedure 1 Observe the Mechanical Stop position indicator on the injector head If the indicator is at the extreme forward position beyond zero it may be jammed see st...

Страница 83: ...ition pot 5 If the condition persists replace the Servo Control Card 6 If the condition persists replace the injector head CHECK TURRET OR MECHANICAL STOP Turret is not in the proper position for an i...

Страница 84: ...and reapply power to the injector If the problem persists replace the CPU Card COMMUNICATIONS ABORTED Control Panel does not respond or responds with four consecutive negative acknowledgments Remove...

Страница 85: ...the Cyclic Redundancy Check Remove and reapply power then attempt to operate the unit again Procedure 1 If the ROMs have been replaced as part of a software update procedure they may have been instal...

Страница 86: ...R PROGRAM NUMBER THEN RECALL The RECALL button was pressed Press the number buttons to enter the program desired then press the RECALL button again to enter ENTER PSI 1 KG 2 KPA 3 ATU 4 Program 51 was...

Страница 87: ...me value to be entered ESTABLISHING COMMUNICATIONS This message is displayed on the Control Panel after power up or recovery from a system monitor condition This message implies that the Control Panel...

Страница 88: ...ck the motor knob for plunger movement If movement occurs the line frequency may be miscalibrated 2 Recalibrate or replace the Power Drive Card 3 If unable to confirm electrical malfunction this messa...

Страница 89: ...d INJECTION NUMBER XX A untitled pre programmed injection has been recalled from memory INJECTOR HEAD MALFUNCTION Actual Flow Rate has exceeded the selected Flow Rate or actual Volume delivered has ex...

Страница 90: ...END The Control Panel if it is unable to transmit to the Main Unit Remove and reapply power Service Procedure 1 Check the Remote Panel cable for broken or intermittent connections 2 If the condition c...

Страница 91: ...in the selected syringe system and flow scale Enter a pressure limit no greater than the respective maximum See acceptable pressure value ranges MAX PRESSURE IN ML SEC IS 82 A pressure limit above 82...

Страница 92: ...ook for mechanical interference broken connections or other damage to the Mechanical Stop motor drive system and potentiometers 2 If the condition persists replace the Mechanical Stop Drive Card 3 If...

Страница 93: ...se at least 2 ml Verification is indicated by 5 short beeps 2 Rearm the injector NOTE If the plunger is in full reverse pressing reverse load will prompt the Sentinel message PLUNGER POT MECHANICAL FA...

Страница 94: ...tion of proper pot opera tion Procedure 1 Verify proper injector head cable connections 2 Inspect the physical condition of the plunger pot and asso ciated pot gears 3 If the condition persists replac...

Страница 95: ...ed location Scroll through the programs to search for program desired or create a new program PPI PANEL CHECKSUM ERROR A fault exists in the PPI memory the checkless does not match the parameters disp...

Страница 96: ...st 100 PSI Service Procedure 1 Replace the Servo Control Card 2 If the condition persists replace the Power Drive Card PWR DRIVE FAILURE A Fault occurred in the injector motor drive circuits during an...

Страница 97: ...e head is out of specification Remove and reapply power then attempt to operate the unit again Procedure 1 Remove power disconnect the injector head cable then retry The message CHECK INJ HEAD CABLE P...

Страница 98: ...utility mode Select the Utility Recall function desired SELF TEST INDICATES 60 ML TURRET Displayed only when the turret is in the 60 ml syringe position RECALL 65 has been accessed in order to change...

Страница 99: ...e start switch on the cord reel or front of the CRC check the external start circuit for shorts and improper closure 3 If the condition continues with the external start switch dis connected from the...

Страница 100: ...g the following message would be displayed UNIT DISARMED 01 01 Main keyboard 03 Remote panel keyboard 04 FWD REV load switch 05 Turret 06 Watch Dog failure while arming 07 0300 only Injector or Aux st...

Страница 101: ...mains in the syringe to deliver the program volume The option is given to the user to either inject the remaining insufficient volume or to temporarily abandon arming until program volume can be repro...

Страница 102: ...150 syringe system and select the 60 ml syringe size NOTE The Mark V ProVis injector should not be configured for 60 ml syringe operation SERVICE UTILITY MESSAGES The following messages are displayed...

Страница 103: ...a condition when no mes sage or a garbled message appears on the Sentinel The following non message faults are covered Refer to the following pages for possible causes and the procedure for correcting...

Страница 104: ...Supply Card from the unit Reapply power and check for the existence of Power Supply voltages If Power Supply voltage now exists one or more of the cards in the unit are not functioning properly Reinse...

Страница 105: ...ng commanded to do so this message should appear on the Sentinel STALL TIME EXCEEDED 1 Check for physical interference of the plunger or other mechanical parts of the head 2 If the condition continues...

Страница 106: ...his message does not appear check the start switch 2 Plug an external start switch into the rear connector panel Inject with the external start switch 3 If there is no injection with the external star...

Страница 107: ...Mark V ProVis Injection System 15 36 NOTES...

Страница 108: ...ection System that can shock burn or cause death To avoid injury the system should be opened and serviced by qualified service personnel only Disconnect the system from line power before cleaning or a...

Страница 109: ...d Specify 50 or 60 Hz 78101 06 AP 10 Power Supply Card 78101 07 AP 03 Pre Programmed Injection Card 3002953 Servo Control Card 78101 10 AP 03 1 3008759 Assembly Articulating Arm 3003073 Caster 3002141...

Страница 110: ...t Switch kit Mechanical Stop 78101 04 SK 07 Overlay Injector Head 60 150 English 411004551 1 Gernan 411004551 2 French 411004551 3 Spanish 411004551 4 Dutch 411004551 5 Italian 411004551 11 Japanese 4...

Страница 111: ...t U23 PLA U23 XXX software dependent Y2 8 0 MHz Crystal 180 0080 000 I O Card IOC U4 Z8430APS CTC 070 8430 000 U5 U6 Z8420APS PIO 070 8420 000 U8 PLA M5JB8 Servo Control Card SCC U1 AD571 A D 050 0571...

Страница 112: ...3 6864 MHz Crystal 180 0080 020 NOTE ROM chips U15 and U16 should indicate the same software version For example RP5B15 and RP5B16 must both indicate the same software versions Contact MEDRAD Service...

Страница 113: ...26 In Europe MEDRAD EUROPE B V Postbus 205 6190 AE Beek The Netherlands Phone 31 0 43 3585601 FAX 31 0 43 3656598 In Japan Nihon MEDRAD K K 2 4 9 Umdeda Kita ku Osaka 530 0001 Japan Phone 81 0 66 133...

Страница 114: ...system depending on what is being repaired or replaced Medium blade screwdriver Small blade screwdriver 3 8 wrench or pliers 1 16 hex wrench 5 32 hex wrench Pin extractor Alignment tool or very small...

Страница 115: ...onnected to the rear connector panel 5 Carefully remove the electronics console from the assembly and position on a flat anti static surface with the connector panel facing downward Rackmount System 1...

Страница 116: ...ing of all injection memory is required PC Card Replacement 1 Identify the proper slot for reinsertion if more than one card was removed Card Ejector Tab color CPU Card White I O Card Violet Servo Con...

Страница 117: ...ly from the pedestal and extend the interconnect cable to access the connector 5 Disconnect the interconnect cable by sliding the locking release sleeve back from the connection Control Panel Replacem...

Страница 118: ...d to the inside cover 5 Disconnect the connectors at P J10 and P J11 then remove the card from the assembly Display Card Replacement 1 Re establish the connections at P J10 and P J11 then position the...

Страница 119: ...cover 5 Disconnect the ground wire connection and the connector at P J1 then lift the card from the assembly Controller Card Replacement 1 Position the replacement Controller card in the assembly then...

Страница 120: ...l knob loosen the screw inside the knob several turns without removing the screw When the screw is loose remove the knob from the shaft 6 While holding the plunger rotation knob remove the screw insid...

Страница 121: ...se in reas sembly 5 Note the placement of the following parts for use in reassembly If there is a ferrite core on the cable remove and retain for later use Unscrew and remove the strain relief from th...

Страница 122: ...fy that the pins are secured in the connector 4 Reconnect the P29 J29 connectors and the injector head to the injector unit and apply unit power The heater should feel warm within a few minutes If the...

Страница 123: ...move unit power 3 Position the injector head which can remain on the arm or be placed on a padded surface upside down 4 Remove the four screws which retain the bottom cover then remove the bottom cove...

Страница 124: ...the wires are positioned away from moving parts Figure 16 2 Plunger Pot Terminal Identification 4 For the following measurements connect the DVM ground to ter minal 3 on the plunger position pot 5 Ap...

Страница 125: ...l stop microswitch opens noted by an audible click The DVM can be used on the microswitch to detect when the microswitch opens 12 Disengage the Mechanical Stop pot and adjust for 0 860 VDC 13 Reengage...

Страница 126: ...parameters as follows Flow Rate 10 ml sec Volume 10 ml Pressure 600 psi 3 Reverse the piston to the rear limit then remove unit power 4 Manually reverse the stop plate to the rear limit then disconnec...

Страница 127: ...gear 7 Advance the plunger until the plunger position pot wiper voltage termi nal 2 is 1 010 VDC 8 Manually reverse the Mechanical Stop plate into the plunger plate until the mechanical stop microswit...

Страница 128: ...pulley Drive Belt Replacement 1 Position the replacement belt over the flanged motor gear Align the belt teeth with the teeth of the large drive pulley then begin to slide the belt onto the gear 2 Ro...

Страница 129: ...blade screwdriver not longer than 6 inches 15 cm After securing the belt check the injector at the maximum pressure 1100 psi at 60 ml 1200 psi at 150 ml or 1000 psi at 200 ml to ensure proper operatio...

Страница 130: ...Note the position of the motor leads for re termination then care fully pull the connectors from the motor terminals 4 Remove the four screws lock washers and washers securing the motor to the rear c...

Страница 131: ...o the belt by prying the motor case with a screwdriver then tighten the four motor screws Refer to Figure 16 4 Follow these guidelines when applying tension to the drive belt Use a medium blade screwd...

Страница 132: ...able stop assembly pulley on the opposite side of the pivot knuckle 6 Disengage the belt from the Mechanical Stop motor gear 7 Remove the motor and bracket assembly in a rotating and lifting motion fr...

Страница 133: ...4 Position the belt on the movable stop assembly pulley on the oppo site side of the pivot knuckle 5 Install the previously removed wave spring and E clip on the mount ing post Ensure that the E clip...

Страница 134: ...e ribbon cable at the connector Control Panel Replacement 1 Reconnect the ribbon cable from the push button switch to the PC card 2 Place the top plate and card on a smooth flat surface top side down...

Страница 135: ...as required to keep limit switch wires away from moving parts 4 Apply power to the system Install turret if applicable and activate forward load If there is no forward movement repeat step 2 above Rea...

Страница 136: ...efully lift the cable from the injector head to avoid disturbing other wiring Head Cable Replacement 1 Position the replacement cable in the injector head Route the four wires with push on connectors...

Страница 137: ...nto groove Figure 16 9 O Ring Installation 3 Install seal cartridge 4 Lightly lubricate the seal cartridge screws 5 Install and tighten screws to secure the seal cartridge 6 Install the plastic plugs...

Страница 138: ...ich it was set Adjustment Procedure 1 Remove the hole plug located on the side of the pivot knuckle 2 Tighten the nut until the head will remain in the set position NOTE If the pivot knuckle is secure...

Страница 139: ...placement 1 Connect the power switch wires as shown below Figure 16 10 Power Switch Terminal Orientations 2 Place the switch in the unit without inserting fully Connect the injector to a power source...

Страница 140: ...Disconnect all cable connections at the rear connector panel Remove the bracket that secures the electronics console in the assembly then remove the console and place on an anti static surface Remove...

Страница 141: ...om cover of the Control Unit 5 Mate the harness connectors together 6 Pedestal Systems only Replace the RF shield and secure with the twelve 12 screws previously removed 7 Pedestal Systems only Positi...

Страница 142: ...roughout this adjustment process 1 Remove power from the injector then disconnect from the power source 2 Access the PC cards inside the electronics console Refer to the disassembly and reassembly pro...

Страница 143: ...ely Activate forward load The plunger should reach the 0 ml mark 1 ml within 8 30 seconds 3 Reverse the plunger completely Set up an injection of 1 ml sec for 150 ml Arm and inject The injection shoul...

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