How it Works
Spellman
Loading...
LORAD LPX-200
Operator's Manual
61 pgs4.1 Mb0

Spellman LORAD LPX-200 Operator's Manual

LPX200
X-RAYS WHEN ENERGIZED!
FORMAL HARDWARE RAINING F ROM
SPELLMAN HIGH VOLTAGE ELECTRONICS.
IS HIGHLY RECOMMENDED.
Copyright 2000, Spellman High Voltage Electronics Corporation. All Rights Reserved.
This information contained in this publication is derived in part from proprietary and patent data. This information has
been prepared for the express purpose of assisting operating and maintenance personnel in the efficient use of the
model described herein, and publication of this information does not convey any right to reproduce it or to use it for
any purpose other than in connection with installation, operation, and maintenance of the equipment described.
118176-001 REV. A
COPYRIGHT NOTICE
Spellman Valhalla 1 Commerce Park Valhalla, NY 10595 Phone: +1 914 686-3600 Fax: +1 914 686-5424 www.spellmanhv.com
This document is copyrighted by LORAD.
No part of this document may be reproduced, transmitted,
or copied without the express written permission of:
LPX-200
Industrial Imaging System
LPX-200 Industrial Imaging System
Copyright© 2002 by LORAD All rights reserved.
Operator’s Manual
Part Number 9-500-0200, Revision 2
Table of Contents
Copyright Notice
i
LPX-200
Industrial Imaging System
This Page Is Intentionally Blank
ii
Table of Contents
Chapter
1
LPX-200
Industrial Imaging System
Contents
INTRODUCTION & GENERAL INFORMATION
INTRODUCTION ..................................................................1-1
Intended Use......................................................................... 1-1
SYSTEM OVERVIEW ..........................................................1-1
The Control Unit................................................................... 1-2
The Tubehead ....................................................................... 1-2
The Cooling Unit
(liquid-cooled units only) ..................................................... 1-2
Legend - LPX-200 X-ray System ..........................................1-3
MANUAL OUTLINE.............................................................1-4
Chapter 1:
Introduction & General Information....................................1-4
Chapter 2:
Preparation For Use and Shipment ......................................1-4
Chapter 3:
Installing the LPX-200 ......................................................... 1-4
Chapter 4:
LPX-200 X-ray Controls & Indicators .................................1-4
Chapter 5:
LPX-200 X-ray System Operation........................................1-4
Section 6:
Routine Upkeep and Care .................................................... 1-4
SAFETY SUMMARY ............................................................1-5
Radiation Hazard .................................................................1-6
Lethal Voltages ..................................................................... 1-6
Badges .................................................................................. 1-6
Radiation Protection ............................................................ 1-6
Radiation Monitoring...........................................................1-6
Warm-Up Procedures ...........................................................1-6
Operation ............................................................................. 1-6
Cooling Unit Operation ....................................................... 1-6
Care in Handling.................................................................. 1-6
Table of Contents
iii
LPX-200
Industrial Imaging System
PREPARATION FOR USE & SHIPMENT
UNP ACKING INSTRUCTIONS...........................................2-1
Reshipment Guidelines .........................................................2-1
Transporting the Unit ........................................................... 2-2
EQUIPMENT CHECKLISTS...............................................2-3
Checklist - Tubehead ............................................................ 2-3
Checklist - Standard Equipment........................................... 2-3
Checklist - Optional Equipment ........................................... 2-3
WARNINGS LABELS &
CONTROL NUMBERS .........................................................2-4
SPECIFICATIONS.................................................................2-5
Specifications - General System ...........................................2-5
Specifications - General Tubehead.......................................2-6
Specifications - Optional Tubehead .....................................2-6
Specifications - Control Unit................................................ 2-7
Specifications - Cooling Unit ............................................... 2-7
INSTALLING THE LPX-200 X-RAY SYSTEM
Chapter
2
Chapter
PRE-OPERATIONAL
CHECKS & INSPECTION ...................................................3-1
Check - Tubehead Gas Pressure........................................... 3-1
Check - Cooling Unit............................................................ 3-1
Check - Control Unit ............................................................3-1
SYSTEM SET UP PROCEDURES.......................................3-2
System Interconnections - Liquid Cooled.............................3-2
System Interconnections - Air Cooled ..................................3-3
Connecting to Power ............................................................ 3-4
EXTERNAL
INTERLOCK CONNECTIONS ...........................................3-4
iv
Table of Contents
3
LPX-200
Industrial Imaging System
Chapter
4
LPX-200 X-RAY CONTROLS & INDICATORS
INTRODUCTION ..................................................................4-1
Overview - Control Unit.......................................................4-1
Legend - LPX-200 Control Unit ...........................................4-1
THE LIQUID
CRYSTAL DISPLA Y SCREENS ..........................................4-2
The Message / Mode LCD Display Screen........................... 4-3
FRONT PANEL
CONTROLS AND INDICAT ORS ........................................4-4
The MAINS Switch................................................................4-4
The MAINS ON Indicator.....................................................4-4
The SAFETY Switch..............................................................4-4
The kV SET Controls ............................................................ 4-4
The mA SET Controls ...........................................................4-4
The EXPOSURE SET Controls ............................................4-5
The UNITS Control...............................................................4-5
The TIME Control ................................................................4-5
The RESET Control ..............................................................4-5
The SCROLL Contr ol ........................................................... 4-6
The X-RAY ON Control ........................................................4-6
The X-RAY Indicator ............................................................ 4-6
The X-RAY OFF Control ...................................................... 4-6
Chapter
5
LPX-200 SYSTEM OPERATION
INTRODUCTION ..................................................................5-1
Pre-Operational Safety Precautions ....................................5-1
X-RA Y TUBE WARM UP ......................................................5-2
Autowarm Sequence : > 30 Days.........................................5-2
Autowarm Sequence : 7 - 30 Days ....................................... 5-3
Autowarm Sequence : 16 Hrs. - 7 Days ............................... 5-3
Autowarm Sequence : 8 Hrs. - 16 Hrs..................................5-4
Autowarm Sequence : 4 Hrs. - 8 Hrs....................................5-4
OPERATION -
LPX-200 X-RAY SYSTEM ....................................................5-5
Sequence of Operation ......................................................... 5-5
LPX-200 FAULT MESSAGES...............................................5-7
X-RA Y TUBE SEASONING .................................................5-8
Table of Contents
v
LPX-200
Industrial Imaging System
LPX-200 ROUTINE UPKEEP & CARE
INTRODUCTION ..................................................................6-1
INSPECTION CHECKLISTS ..............................................6-1
Tubehead Checklist ..............................................................6-1
Control Unit Chec klist.......................................................... 6-2
Cooling Unit Checklist ......................................................... 6-2
Interconnecting Cables & Hose Checklist ...........................6-2
CLEANING THE
LPX-200 X-RAY UNIT ..........................................................6-3
Required Cleaning Materials ...............................................6-3
Cleaning the X-Ray Unit ...................................................... 6-3
TUBEHEAD MAINTENANCE ............................................6-4
Temperature Compensation.................................................. 6-4
Re-Pressurizing the Tubehead ..............................................6-5
Re-Filling the Tubehead .......................................................6-6
Cleaning - Control Unit Air Filter........................................6-6
COOLING UNIT UPKEEP...................................................6-7
Mixing & Adding Coolant Solution......................................6-7
Cleaning - Cooling Unit Air Filter.......................................6-7
Cleaning - Coolant Filter ..................................................... 6-8
Chapter
6
vi
Table of Contents
Chapter 1:
Introduction and General Information
INTRODUCTION
This manual describes the LORAD LPX-200 Portable Industrial X-ray Unit and explains the procedures to properly set up, inspect, operate, and maintain this system.
Intended Use
The LPX-200 is designed to meet the needs of the commercial NDT user. The system is intended for, but not limited to, the inspection of materials for:
LPX-200
Industrial Imaging System
◆ defects
◆ inclusions
◆ cracks
◆ corrosion
◆ porosity
SYSTEM OVERVIEW
The LPX-200 can generate x-ray potential up to 200 kilovolts (kV) and tube current up to 10 milliamperes (mA). The maximum allowable dissipation is 900 watts. Maximum tube current is limited automatically by the Control Unit to 10mA, or to a value that does not cause dissipation greater than 900 watts at a set kV level.
The system offers a 100% duty cycle and consists of the following assemblies:
◆ the Control Unit
◆ the Tube Head
◆ the Cooling Unit, (liquid cooled units only)
◆ the Electric Cooling Fan (air cooled units only)
Figure 1-1:
The LPX-200 X-ray System
These assemblies are described in detail next.
Chapter 1: Introduction & General Inf ormation
1-1
LPX-200
Industrial Imaging System
The Control Unit
The radiographer uses the Control Unit to set the radiographic exposure parameters, and to activate/deactivate x-ray emissions from the Tubehead. One hundred feet of cable is supplied with the system, which enables the Control Unit an operator to maintain a safe distance from the x-ray Tubehead during use.
The digital-based, microprocessor-regulated Control Unit houses all the system pushbutton operating controls, an exposure factor LCD Screen (for display of exposure factors), a Message LCD Screen (for display of operating mode and system messages), and the circuitry required to provide power to the Tubehead and Cooling Unit.
The Control Unit is enclosed in a metal container with a removable cover. A collapsible handle is attached to the cover to provide a means of transporting the Control Unit.
The T ubehead
The Tubehead is a cylindrical aluminum shell assembly housing the x-ray tube, the high voltage power supply, and the filament supply. It is insulated with sulfur hexafluoride gas, pressurized to 50 psi @70°F. Power to operate the x-ray tube is supplied through a shielded cable that connects the Tubehead to the Control Unit. The x-ray tube is end grounded, with an exposed anode which contains a beryllium window approximately 2 inches from the anode end. Built in carrying handles are at each end of the Tubehead.
The Cooling Unit (liquid-cooled units only)
The Cooling Unit dissipates heat generated at the anode of the x-ray tube. Liquid coolant from a self-contained reservoir is pumped through one side of a twin hose assembly, into the Tubehead. In the Tubehead, coolant flows through a cooling manifold, into the anode, and then back to the Cooling Unit through the second half of the twin hose assembly.
Once in the Cooling Unit, coolant passes through a flow switch that is electrically interlocked with the Control Unit, and then through a filter to screen out contaminants. From the filter, coolant flows through a forced air radiator, where conducted heat is dissipated, and then back into the reservoir.
An electric motor-driven fan and pump assembly circulates coolant and creates airflow through the radiator. Power is supplied via an interconnecting cable from the Control Unit. When properly connected to the system, the Cooling Unit is automatically activated by a switching circuit within the Control Unit.
There are two Tubehead models available:
◆ Liquid-cooled
◆ Air-cooled
The liquid-cooled Tubehead uses a separate Cooling Unit to dissipate anode heat. These models have a length of twin hose attaching the Tubehead to the Cooling Unit. Air-cooled models have an electric cooling fan mounted at the anode end of the Tubehead. The fan is powered by an interconnecting cable from the Control Unit.
1-2
Chapter 1: Introduction & General Inf ormation
Legend - LPX-200 X-ray System
Use the following legend as a reference for parts idnetification.
LPX-200
Industrial Imaging System
1. Exposure Technique LCD Display
2. Message LCD Display
3. Power Connector
4. Tubehead Connector
5. Cooler Connector
6. Interlock Connector
7. Mains On/Off Switch
CONTROL
UNIT
1
2
8
8. Lockout Keyswitch
9. Tubehead Anode
10. Tubehead Coolant Hose Fittings
11. Tubehead Gas Pressure Gauge
12. Tubehead Cable Connector
13. Cooling Unit Reservoir Cap
14. Cooling Unit Coolant Hose Fittings
15. Cooling Unit Cable Connector
3
4
5
6
7
TUBEHEAD ASSEMBLY
10
9
11
Chapter 1: Introduction & General Inf ormation
COOLING
14
12
15
UNIT
13
Figure 1-2:
Legend - LPX-200
1-3
LPX-200
Industrial Imaging System
MANUAL OUTLINE
This manual provides qualified radiographers and technicians with a means to logically inspect, operate, and maintain the LORAD LPX-200 Portable X-ray Unit. The following paragraphs describe the arrangement of this manual and the information contained in each section.
Chapter 1: Introduction & General Information
This section provides general information about the LPX-200. Included in this section is a safety summary.
Chapter 2: Preparation For Use and Shipment
In this chapter, the user is provided instructions for unpacking and reshipment, along with equipment checklists, and the basic specifications of for assembly. Also included in Chapter 2 are the locations of warning labels and I.D. tags.
Chapter 4: LPX-200 X-ray Controls & Indicators
Chapter 4 details the controls and indicators on the LPX-200 Control Unit. Refer to this chapter during use for operational details.
Chapter 5: LPX-200 X-ray System Operation
The warm up and operating instructions for the LPX-200 X-ray Unit are detailed in Chapter 5. Included are descriptions of error messages.
Section 6: Routine Upkeep and Care
This chapter covers preventive maintenance and care schedules for each assembly of the system. Included are procedures for pressurizing and refilling the Tubehead, cleaning the apparatus, and various general care practices.
Chapter 3: Installing the LPX-200
This chapter provides instructions on making the interconnections for both liquid cooled and air cooled units. Also includes is a description of possible external interlock connections.
1-4
Chapter 1: Introduction & General Inf ormation
LPX-200
Industrial Imaging System
SAFETY SUMMARY
When properly installed, maintained, and operated, X-ray equipment can be used effectively and safely. If any component of this unit is incorrectly installed, and/or operated by unqualified personnel, or if the maintenance schedule is neglected, it is a potentially dangerous apparatus.
Before operating or performing any maintenance on the LPX-200, the user MUST have a thorough understanding of x-ray machinery, x-ray generation, x-ray potential, and x-ray control. The user MUST understand all hazards associated with x-ray generation.
Read this “Safety Summary” completely, and thoroughly understand its contents. Read all of the safety warnings, cautions, and notes throughout this manual prior to commencing any operating or maintenance procedures.
All operators and technicians MUST adhere to the following safety practices:
◆ Read and understand the x-ray protection warning published at the front of this manual.
Use the following summary as a checklist to assure comprehension of the safety indicators.
NOTE: An essential operating procedure, condition, or statement, which must be observed to ensure proper understanding and operation of the system.
! CAUTION ! An operating or maintenance procedure, practice, condition, or statement, which, if not strictly observed, could result in damage to, or destruction of equipment.
! WARNING ! An operating or maintenance procedure, practice, condition, or statement, which, if not strictly observed, could result in injury to or death of personnel.
◆ Read this manual in its entirety.
◆ Understand and all procedures completely before
operating the unit.
◆ Read thoroughly and understand completely all NOTE, CAUTION, and WARNING statements before beginning operation or maintenance procedures.
Chapter 1: Introduction & General Inf ormation
1-5
LPX-200
Industrial Imaging System
Radiation Hazard
This equipment generates X-radiation at levels that can be lethal. This unit must only be operated by personnel that are certified and experienced in industrial x-ray generation. All operators must also understand the characteristics of radiation and the associated dangers of exposure to primary, secondary, and residual sources of radiation.
Lethal V oltages
High power radiation sources depend upon the generation of extremely high, yet well-protected voltages. Under no circumstances should the operator access the interior of the Tubehead. Also, under no circumstances should the operator access the interior of the Control Unit or the Cooling Unit except for the procedures outlined in Section 5 of this manual.
Badges
All personnel who work around X-ray equipment must wear a functional exposure dosage indicator.
Operation
Equipment must be operated at correct source voltage and frequency, and must never be left running unattended. The gas pressure in the Tubehead must be checked to ensure it is within allowable limits before operating the unit. Never operate this apparatus if output voltage/current is unstable.
Cooling Unit Operation
Regularly check the coolant solution in the Cooling Unit to ensure:
◆ the coolant level is within specification
◆ the pump circulates the coolant properly
◆ the fittings, hoses, and coolant reservoir does not leak
Always allow the Cooling Unit, or the fan on air-cooled units, to run approximately 5 minutes after completion of x-ray generation.
Radiation Protection
X-ray equipment must be operated within properly designated protective barriers. Otherwise, personnel must not approach closer than 100 feet from the Tubehead, and in no cases cross the direct path of the primary beam.
Radiation Monitoring
After installation, re-installation, transporting, performing maintenance, and during all radiographic operations not within a radiation enclosure, a radiation survey should be performed.
Warm-Up Procedures
Explicit procedures are outlined for “running-up” high voltage with new equipment, equipment with a new tube, equipment that has been inactive for a period of time, and for daily use. These procedures must be strictly followed at all times.
Care in Handling
Extreme care must be taken when handling this x-ray apparatus. Exercise caution when packing, unpacking, shipping, and while performing maintenance. Remember, the X-ray tube is durable but breakable: be sure to store and ship it in the upright position.
1-6
Chapter 1: Introduction & General Inf ormation
Chapter 2:
Preparation for Use and Shipment
LPX-200
Industrial Imaging System
UNPACKING INSTRUCTIONS
The LPX-200 X-ray Unit is shipped in a single wooden container. To gain access to the unit, perform the following:
◆ Remove the top cover from the crate.
◆ Carefully lift each component from the container.
◆ Perform a thorough visual inspection on each
component.
If damage to any component has occurred, immediately contact the carrier. Keep all damaged containers until the carrier completes an inspection by the carrier. If it is necessary to re-package and ship the unit, follow the instructions outlined under “Reshipment Guidelines”.
Reshipment Guidelines
In the event that the LPX-200 X-ray Unit must be transported or shipped, use the original wooden container and packaging material whenever possible. If the original shipping material is not available, comply with the following re-packing guidelines.
4. Pack the Control Unit in a container rated for 60 lbs. Surround the Control Unit with a MINIMUM of 2" of shock absorbent packing material (sheet or loose type), including the top and bottom.
5. Pack the Cooling Unit in the same manner as the Control Unit.
! WARNING ! The coolant solution is a flammable substance and must be drained from the Cooling Unit’s reservoir before it can be shipped.
1. Construct a wooden shipping carton for the Tubehead Assembly similar to the one in Figure 2-1. Build the carton so that the top can be completely removed to facilitate packing and unpacking.
2. Cushion the Tubehead with 3" of shock absorbent, foam type, packing material (MINIMUM). This material MUST surround the assembly on all sides, including above and below the Tubehead.
3. Affix supporting legs to the bottom of the carton. Make sure the legs extend between 7 and 10 inches from the edges as shown in Figure 2-1.
Chapter 2: Preparation for Use and Shipment
2-1
LPX-200
Industrial Imaging System
Transporting the Unit
When transporting by commercial carrier (i.e., truck, rail, etc.), select the shipping method and carrier on the basis of safe shipment, especially when shipping the fragile Tubehead Assembly. Distinctly mark the Tubehead carton on all sides with labeling which provides the carrier the following information:
◆ Contents contains fragile glass instrumentation
◆ Container is to be shipped in the upright position
only
Customarily, the Tubehead is shipped via air, generally avoiding ground transportation if possible. When shipping via air, affix an additional label to the carton stating the following:
“Sulfur hexafluoride, non-flammable gas is present in limited quantities in one or more packages of this shipment. This is to certify that the above mentioned materials are properly classified, described, packaged, marked, and labeled, and are in proper condition for transportation according to the applicable regulations of the U.S. Department of Transportation.”
Removeable Top
Fragile Instrument Label
Warning Label
SF6 Label
Support Leg
Support Leg
Support Leg
Figure 2-1:
T ubehead Shipping Container
2-2
Chapter 2: Preparation for Use and Shipment
LPX-200
Industrial Imaging System
EQUIPMENT CHECKLISTS
The following checklists outline the standard and optional equipment of the LPX-200 X-ray Unit. After unpacking the unit, and completing a thorough visual inspection, compare each item with this list to assure completeness.
Note that several Tubehead models are available. Verify that the Tubehead shipped with your unit matches the model that was originally ordered.
Checklist - Tubehead
❏ Assembly, Tubehead* ______ 3-000-3071
Air Cooled Unit; 40° x 60° cone
1.5mm Focal Spot 1mm Beryllium Window
❏ Assembly, Tubehead _______ 3-000-3072
Liquid Cooled; 40° x 60° cone
1.5mm Focal Spot 1mm Beryllium Window
❏ Assembly, Tubehead _______ 3-000-3073
Liquid Cooled; 360° Panoramic
0.4mm x 4.0mm Focal Spot
0.4 Fe/Ni/Co Window Tube
* All Air Cooled Units are equipped with Fan Power
Cable (p/n: 1-040A-0355). The liquid Cooling Unit is not equipped with this cable.
Checklist - Standard Equipment
❏ Control Unit, Digital (1) ____ 3-000-3074 ❏ Cooling Unit Assembly (1) __ 3-000A-0737
(Liquid Cooled Units Only)
❏ Power Cable Assembly (1) __ 1-040A-0825
(3 Pin Connector, 25ft.)
❏ Power Cable Assembly (1) __ 1-040A-0831
(3 Pin Connector, 100ft)
❏ Control Cable Assembly (1) _ 1-040A-0824
(14 Pin Connector, 100ft.)
❏ Cooler Power Cable (1)_____ 1-040A-0823
(Liquid Cooled Units Only, 8 Pin Connector, 50ft.)
❏ Power Cable, Fan (1)_______ 1-040A-0355
(Air Cooled Units Only, 100ft.)
❏ Interlock Jumper (1) _______ 3-000-3075
(Jumper)
❏ Safety Switch Key (2) ______ 2-230-6201
❏ Interlock Connector (1) _____ 1-600-3218
(Mating Connector)
Checklist - Optional Equipment
❏ X-Ray Tubehead Stand _____ 3-000A-0754 ❏ Kit, Tubehead Re-charge____ 9-200A-0102 ❏ Laser Pointer _____________ 3-000-0792
❏ Laser Pointer Adapter ______ 3-100-0175
Chapter 2: Preparation for Use and Shipment
2-3
LPX-200
eeeeeeeeeeeeeeeeee
eeeeeeeeeeeeeeeeee
eeeeeeeeeeeeeeeeee
eeeeeeeeeeeeeeeeee
eeeeeeeeeeeeeeeeee
eeeeeeeeeeeeeeeeee
eeeeeeeeeeeeeeeeee
eeeeeeeeeeeeeeeeee
eeeeeeeeeeeee
eeeeeeeeeeeee
eeeeeeeeeeeee
eeeeeeeeeeeee
eeeeeeeeeeeee
eeeeeeeeeeeee
eeeeeeeeeeeee
eeeeeeeeeeeee
eeeeeeeeeeeee
eeeeeeeeeeeee
Industrial Imaging System
WARNINGS LABELS & CONTROL NUMBERS
Each assembly of the LPX-200 X-ray System is equipped with an I.D. tag (Control Tag) providing the serial number, description, and part number. This data is used for identification, if warranty or service information is needed, and will be requested when contacting LORAD regarding the apparatus.
Control Tag
Warning Label
Attached to the Control Unit and Tubehead are warning labels. Figure 2-2 illustrates the location of the I.D. tags and warning labels for each assembly of the LPX-200.
Control Tag
Control Tag
Warning Label
2-4
Figure 2-2:
Location of Warning Labels and Control Tags
Chapter 2: Preparation for Use and Shipment
SPECIFICATIONS
The following tables illustrate the physical, operational, and environmental specifications for each component of the LPX-200 System. Conformance with these specifications ensures maximum system performance, and reduces the chances of mechanical breakdown and personnel hazard.
Specifications - General System
LPX-200
Industrial Imaging System
The following outlines the general operating and environmental limits of the LPX-200 System.
❏ Line Voltage * ____________ 100 to 130 VAC - 50/60 Hz, 20
amps (maximum); or 200 to 250 VAC - 50/60 Hz, 10 amps (maximum)
❏ Operating Potential ________ 10kV to 200kV @ 0.1 to 10.0
mA, 900 Watts maximum
❏ Duty Cycle ______________ 100%
10.0
5.0
❏ Operating Temperature Range -30°F to 120°F (Ambient)
-34°C to 49°C (Ambient)
❏ Humidity ________________ 0 to 100% relative humidity ❏ Stabilization______________ kV and mA remain within 1% of
set levels. Line voltage varied from 100-130/200-250 VAC.
❏ Storage Temperature Range _ -65°F to 160°F (-54°C to 71°C)
* Line voltage selection is automatic. The system is
operable from either line voltage range without any switch or jumper configuration.
9.0
8.2
7.5
6.9
6.4
6.0
5.6
5.3
5.0
4.7
4.5
Chapter 2: Preparation for Use and Shipment
Figure 2-3:
LPX-200 Maximum T ube Current
2-5
Loading...
+ 42 hidden pages
Buy Points How it Works FAQ Contact Us Questions and Suggestions Privacy Policy Cookie Policy Terms of Use