Del Medical EPEX Omniflex IV User manual

Direct Ray
EPEX Omniflex IV System
Service Manual
P/N 8000-EPEXOMNISM
Revision: A, August 8, 2005
EPEX
Omniflex
IV

August 2005
The information contained in this manual is confidential and proprietary to Del
Medical Imaging Corporation. This information is provided only to authorized
representatives of Del’s customers solely for the purpose of facilitating the use of
Del’s products.
No information contained herein may be disclosed to any unauthorized person for
any purpose whatsoever without the prior written consent of Del Medical Imaging
Corporation.
The information in this document is subject to change without notice.
Copyright 2005 by Del Medical Imaging Corporation. All rights reserved.
DirectRay is a registered trademark of Direct Radiography Corp.
This manual was originally written in English in the United States.
Printed in the U.S.A.
All trademarks, registered trademarks, and product names used within this document
are the property of their respective owners.
Del Medical Imaging Corporation
11550 W. King Street
Franklin Park, IL 60131
USA
Tel: [phone]User Support: (877) 371-4DRC (371-4372)
Fax: [phone]
Federal (USA) Law restricts this device to sale by or on the order of a physician (or
properly licensed practitioner).
Attention: Consult Accompanying Documents - As Applicable
Del Medical Systems Group
11550 West King Street Phone:[phone]
Franklin Park, IL Fax:[phone]
60131-1330 USA Toll Free:1-800-800-6006
www.delmedical.com
CAUTION

EPEX/Omniflex IV System Service Manual
Contents iii
Contents
About This Manual
Intended Use ............................................................................................. xi
Audience.................................................................................................. xii
Organization............................................................................................ xiii
Conventions Used in This Manual.......................................................... xiv
Chapter 1:
Safety Information
General.................................................................................................... 1-2
Electrical................................................................................................. 1-2
Mechanical.............................................................................................. 1-3
Safety Warnings and Cautions................................................................ 1-3
General Use Warnings ...................................................................... 1-3
Field Warnings.................................................................................. 1-3
Electrical and Flammable Warnings................................................. 1-4
Moving and Using Equipment Warnings.......................................... 1-5
Cleaning Cautions............................................................................. 1-5
Safety Symbols....................................................................................... 1-6
Safety and Compliance........................................................................... 1-8
Radiation Protection ............................................................................... 1-9

EPEX/Omniflex IV System Service Manual
iv Contents
Authorized EU Representatives............................................................. 1-11
Identification Labels ............................................................................. 1-12
Overhead Tube Crane Labels.......................................................... 1-12
Generator Labels............................................................................. 1-13
DirectRay Console Labels .............................................................. 1-13
Radiographic Table Labels ............................................................. 1-14
Radiation Safety.................................................................................... 1-15
Safety .............................................................................................. 1-15
Manufacturer’s Responsibility........................................................ 1-16
Monitoring Personnel ..................................................................... 1-16
Radiation Protection Survey................................................................. 1-17
Restrictions on Use............................................................................... 1-17
Chapter 2:
General Information
What Is the EPEX/Omniflex IV System?............................................... 2-2
Major System Components..................................................................... 2-4
Overhead Tube Crane (OTC) Components ...................................... 2-4
Radiographic Table Components...................................................... 2-6
DirectRay Console Components....................................................... 2-7
Generator Components ..................................................................... 2-9
Input Power..................................................................................... 2-11
System Earth Grounding Map ........................................................ 2-11
Collimator....................................................................................... 2-12
Compatibility Certified Components.................................................... 2-13
Compatible Output Devices.................................................................. 2-14
Chapter 3:
Installing the System Hardware
Overview................................................................................................. 3-2
Staging the System............................................................................ 3-2
Safety Equipment.............................................................................. 3-2
Personnel Required........................................................................... 3-3
Tools and Other Equipment............................................................. 3-3
Parts To Be Returned to Del ............................................................. 3-4

EPEX/Omniflex IV System Service Manual
Contents v
Room Preparation ............................................................................. 3-4
EPEX/Omniflex IV System Installation Checklist................................. 3-6
Unpacking the Equipment ...................................................................... 3-7
Positioning the Equipment...................................................................... 3-9
Positioning the Generator ................................................................. 3-9
Positioning the DirectRay Console................................................. 3-11
EPEX/Omniflex IV System Wiring Diagrams ..................................... 3-11
Installing the DirectRay Console.......................................................... 3-11
Installing the Rails................................................................................ 3-12
Checking the Ceiling Preparation................................................... 3-12
Room Layout .................................................................................. 3-13
Starting the OTC Installation................................................................ 3-18
Starting the Table Installation............................................................... 3-18
Table to OTC Longitudinal Rail Alignment................................... 3-18
Aligning the Table to OTC Longitudinal Rails......................... 3-18
Finishing the OTC Installation ............................................................. 3-19
X-ray Tube and Collimator Installation.......................................... 3-19
Balancing the OTC ......................................................................... 3-19
Finishing the Table Installation............................................................. 3-19
Assembling the Electronics Box on the Generator............................... 3-20
Cabling the EPEX/Omniflex IV System .............................................. 3-25
Cable Connections.......................................................................... 3-26
Cabling the Generator..................................................................... 3-26
X-ray Tube Housing Ground .......................................................... 3-26
Wiring the Generator Cabinet Ground...................................... 3-27
Generator Lockout Switch.............................................................. 3-27
Safety Interlocks ............................................................................. 3-27
Cable the X-ray Room Warning Light for Power........................... 3-28
Excess Cabling................................................................................ 3-29
Verify Protective Earth Ground ...................................................... 3-29
Checks Before Power Up...................................................................... 3-30
Initial Voltage Measurements ......................................................... 3-30
Checks After Power Up........................................................................ 3-33
Initial Power Up.............................................................................. 3-33
Verify Room Warning Light ........................................................... 3-34
Completing the EPEX/Omniflex IV System Installation ..................... 3-35

EPEX/Omniflex IV System Service Manual
vi Contents
Final Assembly............................................................................... 3-35
Chapter 4:
Adjustments and Calibration
Connecting the Service Laptop............................................................... 4-2
Installing the GenWare Console Program......................................... 4-2
Starting GenWare Console................................................................ 4-2
Setting the Communications Link .................................................... 4-2
Setting the Generator Utilities ................................................................ 4-3
Utility Menu...................................................................................... 4-3
Setting Time and Date ................................................................ 4-3
Error Log..................................................................................... 4-4
Statistics...................................................................................... 4-4
Generator Setup Menu............................................................................ 4-5
Receptor 1 Setup............................................................................... 4-5
AEC Setup .................................................................................. 4-8
Receptor Defaults ....................................................................... 4-9
I/O Configuration...................................................................... 4-10
AEC Density Calibration................................................................ 4-13
AEC Setup ...................................................................................... 4-14
X-ray Tube Calibrations........................................................................ 4-16
Conditioning the X-ray Tube.......................................................... 4-16
X-ray Tube Warm Up ........................................................................... 4-18
X-ray Tube Calibration Procedure.................................................. 4-19
Collimator System Calibration ............................................................. 4-20
System Adjustments and Calibration.............................................. 4-20
Central Beam and X-ray to Light Field Adjustments..................... 4-21
Mechanical Checks Before Beam Alignment........................... 4-22
Aligning the Test Tool to the DirectRay Detector Center......... 4-26
Aligning VSID Central Beam to the DirectRay
Detector Center...................................................................... 4-27
Verifying VSID X-ray Field Centered to the DirectRay
Detector Center...................................................................... 4-29
Aligning the Collimator Light Field to the X-ray Field............ 4-30
Aligning the Collimator Crosshair to the X-ray Field.............. 4-32
Aligning the HSID Central Beam and X-ray Field Center to
DirectRay Detector Center..................................................... 4-33

EPEX/Omniflex IV System Service Manual
Contents vii
Checking the Size of the X-ray Field to Collimator Indicated
Size Full Field.............................................................................. 4-34
Checking the Size of the X-ray Field to Collimator Indicated Size 4-34
Checking the Size of the X-ray Field to Collimator Indicated
Size Full Field at 180 cm............................................................. 4-35
Checking the Size of the X-ray Field to Collimator Indicated
Size at 180 cm.............................................................................. 4-36
Testing Calibration.......................................................................... 4-37
Calibrating the DirectRay Detector ...................................................... 4-38
Connecting Test Equipment.................................................................. 4-41
Connecting the kV Meter................................................................ 4-41
Connecting the mAs Meter............................................................. 4-42
Adjusting Automatic Exposure Control (AEC).................................... 4-43
Introduction..................................................................................... 4-43
AEC Limitations: Minimum Response Time ........................... 4-43
AEC Limitations: Maximum Exposure Times ......................... 4-44
AEC Board................................................................................ 4-44
Precalibration Notes........................................................................ 4-45
AEC Preliminary Overall Gain Calibration.................................... 4-46
AEC kVp Compensation for Film Screen 2 ................................... 4-47
Adjusting the Final Ion Chamber Preamplifier Gain...................... 4-50
Ion Chamber Detector Balance–PreAmp ....................................... 4-52
Chapter 5:
Preventive Maintenance
Serviceability and Repairability........................................................ 5-1
In-Service Observation ........................................................................... 5-2
Preventive Maintenance Schedules and Checklists................................ 5-2
Semi–Annual Preventive Maintenance............................................. 5-3
Annual Preventive Maintenance....................................................... 5-5
System Preventive Maintenance............................................................. 5-6
Chapter 6:
Repair and Replacement

EPEX/Omniflex IV System Service Manual
viii Contents
Chapter 7:
Diagnostics and Troubleshooting
Troubleshooting Overview ..................................................................... 7-2
Troubleshooting Service Tools ............................................................... 7-3
Netscape............................................................................................ 7-3
UNIX Toolbar................................................................................... 7-3
Calculator.......................................................................................... 7-4
SCSI Error Handling......................................................................... 7-4
Error and Warning Reporting............................................................ 7-5
Accessing Tail Log Files......................................................................... 7-7
Accessing Log Files in a Terminal Session ...................................... 7-9
Additional Logs Accessible from a Terminal Session................ 7-9
DirectRay Controller Log Files Stored on the DirectRay Console... 7-9
Responding to Error Messages ............................................................. 7-10
Troubleshooting System Problems ....................................................... 7-14
Appendix A:
EPEX/Omniflex IV Specifications
Subsystem Specifications ...................................................................... A-2
DirectRay Image Capture System.................................................... A-2
Overhead Tube Crane ...................................................................... A-3
Overhead Tube Crane Physical Specifications................................ A-5
DirectRay Console........................................................................... A-7
X-ray Generator............................................................................... A-8
X-ray Generator Physical Specifications......................................... A-9
X-ray Tube..................................................................................... A-10
Radiographic Table......................................................................... A-11
Environment......................................................................................... A-12
Transit/Storage............................................................................... A-12
Operating ....................................................................................... A-12
Installation Requirements .................................................................... A-12
Flooring.......................................................................................... A-12
Ceiling............................................................................................ A-12

EPEX/Omniflex IV System Service Manual
Contents ix
Appendix B:
Recommended Tools
Hand Tools.............................................................................................. B-2
Metric Tools............................................................................................ B-6
Electrical Tools ....................................................................................... B-6
Test Equipment ....................................................................................... B-7
Appendix C:
Forms
System Installation.................................................................................. C-3
System Calibration Forms ...................................................................... C-9
Preventive Maintenance Forms ............................................................ C-23
Appendix D:
Field Replaceable Units
Ordering Parts........................................................................................ D-2
Appendix E:
EPEX/Omniflex IV System Wiring Diagrams
Glossary

xi
About This Manual
This manual contains service information for the Del
EPEX/Omniflex IV System. It includes an overall description of how the
system operates and provides detailed service support procedures such as
repair and replace, troubleshooting, validation, and calibration.
This manual is intended to service the EPEX/Omniflex IV System
consisting of the following components:
• DirectRay Detector and DirectRay Controller
• Overhead Tube Crane
• DirectRay Console
• X-ray Generator
• Radiographic Table
Intended Use
The EPEX/Omniflex IV System is an assembly of components for the
controlled production of diagnostic images with X-rays. It includes the
X-ray Generator, the DirectRay Console, the Collimator as the beam
limiting device, and the DirectRay Detector as the image receptor. Digital
images can then be viewed, stored, or printed. The system provides a
digital image capture capability for conventional radiographic
examinations (excluding fluoroscopy, angiography, and mammography).
The system then transmits image data for hardcopy, soft display, or storage
via Ethernet using the Digital Imaging and Communication in Medicine
(DICOM) 3.0 protocol.

EPEX/Omniflex IV System Service Manual
xii About This Manual
Audience
This manual is intended for service engineers who have fulfilled the
following training prerequisites or have equivalent experience:
• EPEX/Omniflex IV System
• Radiation safety
• Electronics, including troubleshooting skills
• X-ray theory
• X-ray Generator systems
• X-ray image quality
• Solaris 2.x fundamentals
• System analytical skills
• Network protocol and IP addressing
• Software environments:
•DOS
• Windows 95/98 or Windows NT
• Internet browsing
• FTP protocols

EPEX/Omniflex IV System Service Manual
About This Manual xiii
Organization
Chapter 1: Safety Information
Provides a description of the safety requirements for installing,
maintaining, and servicing X-ray equipment.
Chapter 2: General Information
Provides a description of the EPEX/Omniflex IV System components.
Chapter 3: Installing the System Hardware
Provides steps for the installation process.
Chapter 4: Adjustments and Calibration
Provides the steps for adjustments as well as a description of the calibration
process.
Chapter 5: Preventive Maintenance
Provides a preventive maintenance schedule and procedures for
maintenance of the EPEX/Omniflex IV System.
Chapter 6: Repair and Replacement
Provides information on the location of instructions for the repair and
replacement of EPEX/Omniflex IV System components.
Chapter 7: Diagnostics and Troubleshooting
Provides diagnostics and troubleshooting guidelines as well as guidelines
for responding to error codes.
Appendix A: Specifications
Provides specifications for the EPEX/Omniflex IV System components.
Appendix B: Recommended Tools
List of tools and equipment required for installation and/or service.
Appendix C: Forms
Provides installation, maintenance, and calibration forms.
Appendix D: Field Replaceable Units
Lists the names and part numbers for the most commonly field-replaced
components.
Appendix E: System Wiring Diagrams
Contains EPEX/Omniflex IV System wiring diagrams.
A glossary follows Appendix E.

EPEX/Omniflex IV System Service Manual
xiv About This Manual
Conventions Used in This Manual
This manual uses three types of special messages to emphasize information
or point out potential risks to personnel or equipment. A sample of each
message type follows.
Note: Notes provide
additional information, such
as expanded explanations,
hints, or reminders.
Cautions point out procedures that you must follow precisely to avoid damage to
equipment, loss of data, or corruption of files in software applications.
Warnings point out procedures that you must follow precisely to avoid injury to
yourself or others.
CAUTION
WARNING

1-1
Chapter 1
Safety Information
Personnel operating and maintaining the equipment should receive
EPEX/Omniflex IV System technical training, and be thoroughly familiar
with all aspects of its operation and maintenance. To ensure their safety, all
users should read this chapter carefully before using the system.
Additionally, to promote safety awareness, Service Engineers should
periodically review the basic precautions outlined in this chapter.
Contents
Subject Page
General.................................................................................................... 1-2
Electrical................................................................................................. 1-2
Mechanical.............................................................................................. 1-3
Safety Warnings and Cautions................................................................ 1-3
Safety Symbols....................................................................................... 1-6
Safety and Compliance........................................................................... 1- 8
Radiation Protection ................................................................................ 1-9
Authorized EU Representatives............................................................ 1-11
Identification Labels ............................................................................. 1-12
Radiation Safety.................................................................................... 1-15
Radiation Protection Survey................................................................. 1-17
Restrictions on Use............................................................................... 1-17

EPEX Omniflex IV System Service Manual
1-2 Safety Information
General
The following are general safety precautions:
• Only personnel who have completed a Del training course for EPEX/
Omniflex IV System maintenance are qualified to remove the covers
and repair or maintain the equipment.
• Do not defeat or bypass built-in equipment safety features.
• Observe all warnings and cautions, stated or implied, in the procedures.
• Follow all safety labels on the equipment.
Electrical
Only a qualified/trained Del Field Service Engineer or electrician should
replace electrical components.
Only properly trained and qualified personnel should be permitted access
to the internal parts. Live electrical terminals are deadly; ensure that line
disconnect switches are opened and other appropriate precautions are taken
before opening access doors, removing enclosure panels, or attaching
accessories.
Do not remove high voltage cables from the X-ray tube housing or high
tension Generator and/or access covers from the Generator until the main
and auxiliary power supplies have been disconnected.
Failure to comply with the foregoing may result in serious or fatal injuries to the
operator or those in the area.
WARNING

EPEX Omniflex IV System Service Manual
Safety Information 1-3
Mechanical
The following are mechanical safety precautions:
• Keep fingers, hands, and tools clear of moving parts.
• Unless specifically instructed otherwise, do not operate the equipment
with covers or access panels removed.
• Route cables properly to eliminate tripping hazards.
Safety Warnings and Cautions
General Use Warnings
Federal law restricts this device for sale or use by or on order of a physician or
properly licensed practitioner.
Only qualified personnel may operate the EPEX/Omniflex IV System equipment.
Operation of the equipment by persons who have not been trained or who are
unfamiliar with the EPEX/Omniflex IV System’s functions and controls may cause
serious injury to the patient, serious injury to the operator, or equipment damage.
The EPEX/Omniflex IV System includes no user serviceable parts. For service
assistance, contact Del.
Field Warnings
TheEPEX/Omniflex IV System produces ionizing radiation. Operators must meet all
state and local requirements and regulations.
The DirectRay Detector may only be operated in an area that is located beyond the
20 gauss limit. Operating the unit within the magnetic fields that are higher than this
limit may cause the unit to malfunction, resulting in operator or patient injury.
WARNING
WARNING
WARNING
WARNING
WARNING

EPEX Omniflex IV System Service Manual
1-4 Safety Information
Electrical and Flammable Warnings
The DirectRay Console component of the EPEX/Omniflex IV System may not be
located in the patient environment.
The EPEX/Omniflex IV System and associated cables must not be operated in the
presence of moisture.
To avoid excessive product leakage currents and to maintain product compliance to
medical protective earthing and grounding requirements, the DirectRay Console’s
power cord must be connected directly to a hardwired ac mains receptacle. Under
no circumstances should the DirectRay Console’s power cord be connected to a
multiple receptacle extension device that also supplies power to other electrical
hardware that is electrically connected to the EPEX/Omniflex IV System.
Ensure that earth grounding connections between the components and the building
are maintained at all times. The components include: DirectRay Detector; Overhead
Tube Crane; Radiographic Table; X-ray Generator; and DirectRay Console.
The DirectRay Console cabinet includes a dedicated, bolted, protective ground
connection to the building’s electrical system. Do not remove the grounding
connection for any reason. If it becomes damaged, contact a qualified Service
Engineer.
The UPS battery must be replaced by an authorized Del representative. The UPS
battery contains lead and poses a hazard to the environment and human health if not
disposed of properly.
The EPEX/Omniflex IV System is not suitable for operation in the presence of a
flammable anesthetic mixture with air, oxygen, or nitrous oxide.
WARNING
WARNING
WARNING
WARNING
WARNING
WARNING
WARNING

EPEX Omniflex IV System Service Manual
Safety Information 1-5
Moving and Using Equipment Warnings
Use at least two qualified people when moving equipment in order to prevent injury
or strain.
The equipment is fragile and must be handled with care.
Excessive use of the keyboard and mouse or trackball may result in repetitive strain
injury.
Cleaning Cautions
Do not spray cleaning solution directly onto the equipment. Instead, moisten a cloth
with the solution and wipe the equipment.
Do not immerse the equipment, including any components or accessories, in liquid.
Do not autoclave the equipment, including any components or accessories.
WARNING
WARNING
WARNING
CAUTION
CAUTION
CAUTION

EPEX Omniflex IV System Service Manual
1-6 Safety Information
Safety Symbols
The following safety-related symbols are found on the equipment. To avoid
injury, learn to recognize them.
Radiation
Power Off (used with the DirectRay Console UPS)
Power On (used with the DirectRay Console UPS)
Ethernet Connection
Twisted Pair Ethernet Connection
Explosive Gas (flammable)
Attention—Read the CAUTION or WARNING statement that follows.
Non- Anesthetic Proof
Universal Interface Connection Identifiers
Sound
Earphones
T
P