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Содержание LORAD LPX-200

Страница 1: ...LPX200 ...

Страница 2: ...ersonnel 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 CAUTION THIS EQUIPMENT PRODUCES X RAYS WHEN ENERGIZED DO NOT OPERATE THIS EQUIPMENT WITHOUT FORMAL HARDWARE RAINING FROM SPELLMAN HIGH VO...

Страница 3: ... 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 Operator s Manual Part Number 9 500 0200 Revision 2 Spellman Valhalla 1 Commerce Park Valhalla NY 10595 Phone 1 914 686 3600 Fax 1 914 686 5424 www spellmanhv com ...

Страница 4: ...ii Table of Contents LPX 200 Industrial Imaging System This Page Is Intentionally Blank ...

Страница 5: ...UAL 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 W...

Страница 6: ...eral System 2 5 Specifications General Tubehead 2 6 Specifications Optional Tubehead 2 6 Specifications Control Unit 2 7 Specifications Cooling Unit 2 7 2 Chapter 3 Chapter PREPARATION FOR USE SHIPMENT INSTALLING THE LPX 200 X RAY SYSTEM 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 Interconne...

Страница 7: ...he UNITS Control 4 5 The TIME Control 4 5 The RESET Control 4 5 The SCROLL Control 4 6 The X RAY ON Control 4 6 The X RAY Indicator 4 6 The X RAY OFF Control 4 6 4 Chapter 5 Chapter LPX 200 X RAY CONTROLS INDICATORS LPX 200 SYSTEM OPERATION INTRODUCTION 5 1 Pre Operational Safety Precautions 5 1 X RAY TUBE WARM UP 5 2 Autowarm Sequence 30 Days 5 2 Autowarm Sequence 7 30 Days 5 3 Autowarm Sequence ...

Страница 8: ... 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 Cool...

Страница 9: ... for 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 ...

Страница 10: ... beryllium window approximately 2 inches from the anode end Built in carrying handles are at each end of the Tubehead 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...

Страница 11: ...ower Connector 4 Tubehead Connector 5 Cooler Connector 6 Interlock Connector 7 Mains On Off Switch 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 Figure 1 2 Legend LPX 200 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 CONTROL U...

Страница 12: ...embly Also included in Chapter 2 are the locations of warning labels and I D tags 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 Chapter 4 LPX 200 X ray Controls Indicators Chapter 4 details the controls and indicators on the LPX ...

Страница 13: ... 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 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 beginni...

Страница 14: ...ring 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...

Страница 15: ...terial whenever possible If the original shipping material is not available comply with the following re packing guidelines 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 T...

Страница 16: ...ht 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 pa...

Страница 17: ...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 ...

Страница 18: ...the apparatus 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 Figure 2 2 Location of Warning Labels and ControlTags Warning Label Warning Label Control Tag Control Tag Control Tag eeeeeeeeeeeeeeeeee eeeeeeeeeeeeeeeeee eeeeeeeeeeeeeeeeee eeeeeeeeeeeeeeeeee eeeeeeeeeeeeeeeeee eeeeeeee...

Страница 19: ..._____ 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 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 ...

Страница 20: ...erature of the X ray Tube Anode Shuts down unit if Anode temperature rises above 220 F Pressure Relief Valve_______ Automatically releases SF6 gas from Tubehead if pressure rises between 75 80 psi Pressure Gauge ___________ Displays SF6 gas pressure within Tubehead Used in conjunction with Temperature Compensation chart to visually inspect Tubehead pressure Specifications Optional Tubehead The inf...

Страница 21: ...y be depressed anytime while x rays are being generated Key Lock Safety Switch ____ LOCKED OFF position prevents x ray generation ON position enables X RAY ON switch Exposure Timer ___________ LCD readout on upper display Weight __________________ 35 lbs approximate Dimensions _________________ 12 W x 18 L x 12 H Power ON Indicator _______ Green LED array on front panel X Ray ON Indicator _______ ...

Страница 22: ...LPX 200 Industrial Imaging System 2 8 Chapter 2 Preparation for Use and Shipment THIS PAGE IS INTENTIONALLY BLANK ...

Страница 23: ...imit but greater than 5 psi perform the procedures for Pressurizing the Tubehead refer to Section 5 3 If Tubehead gas pressure is below 5 psi at 70 F purge the Tubehead of all remaining gas then perform the procedures for Refilling the Tubehead see Section 5 Check Cooling Unit This check verifies the integrity of the Cooling Unit liquid cooled tubeheads only 1 Inspect the twin hose assembly and ho...

Страница 24: ...ieved 2 Install the Cooling Unit power cable Connect the male end of the power cable to the connector labeled Cooler on the Control Unit Connect the female end of the power cable to the connector on the Cooling Unit 3 Install the Tubehead Control cable Connect the male end of the Control cable to the connector labeled Tubehead on the Control Unit Connect the female end of the Control cable to the ...

Страница 25: ... connector labeled Tubehead on the Control Unit Connect the female end of the Control cable to the connector on the Tubehead base plate 3 Install the line power cable Connect the female end of the line power cable to the connector labeled Power on the Control Unit Connect the plug end of the line power cable to the AC voltage source see Connecting to Power instructions later in this section 4 Make...

Страница 26: ...ion is possible only when the enclosure doors housing the Tubehead are shut Note that pins A and B of the INTERLOCK connector must form a closed circuit to operate the X ray unit If no external switch interlocks are incorporated a jumper provided must be installed across pins A and B to form this closed circuit Pins C and D provide a switch closure to operate warning devices such as lights sirens ...

Страница 27: ...r LED indicators Military type connectors along the right side of the panel are used to connect the input power cord and the system s interconnecting control cables and hoses Legend LPX 200 Control Unit Use the following legend as a reference for parts identification 1 Exposure Technique LCD Display Screen 2 Message Mode LCD Display Screen 3 Mains ON OFF Circuit Breaker 4 Mains LED Indicator 5 Saf...

Страница 28: ...posure parameters the set techniques top row the operating levels bottom row The top row shows the set exposure kV left side the mA center and the exposure duration right side The exposure duration displays in minutes and seconds or in mAs depending on the selected TIME mode The bottom row shows the actual operating levels of the system during x ray emission The operating kV level displays directl...

Страница 29: ...system operational mode OPERATE or AUTOWARM and the lower left side show the either the type of automatic warm up has been selected i e 30 DAYS or if an error condition has been encountered FAULT The right hand side of the screen indicates the following the current operating status the description of the detected fault Figure 4 3 shows several examples of the information provided on the Message Mo...

Страница 30: ... Tubehead when power is ON without first placing the SAFETY switch to LOCKED OFF then removing the key NEVER leave the key in the SAFETY switch un attended The kV SET Controls Two pushbuttons below the kV readout comprise the kV SET Controls Use these buttons to increment or decrement the kV level for the exposure Pressing the kV UP button identified by the up arrow label increments the set kV in ...

Страница 31: ... time calculation When the x ray system is in the TIME mode TIME SET will appear next to the set exposure time top row in the Exposure Factor LCD When the x ray system is in the mAs mode mAs will appear next to the set mAs top row in the Exposure Factor LCD This switch is active upon upon initial system power up upon system exposure termination upon exposure interuption after resetting the Exposur...

Страница 32: ... starts x ray generation and turns on the X RAY INDICATOR The X RAY ON Control is active only when all of the following conditions are met power is applied to the system The keyswitch is turned ON all error fault conditions have been corrected The X RAY Indicator The X RAY indicator next to the X RAY ON control is a light emitting diode LED that glows red when x rays are being generated The X RAY ...

Страница 33: ...nce requirements WARNING ALWAYS use the cables and hoses provided with the unit to avoid radiation hazards in un shielded outdoor operating conditions WARNING Connect all cables to their appropriate connectors on the Control Unit Cooling Unit and Tubehead BEFORE applying power to the system The operator of this apparatus MUST ensure that all personnel are clear of the hazardous X ray area before g...

Страница 34: ...V will then rise to a level 20kV below where the fault occurred and operate for two minutes After two minutes the kV advances to the next highest incremental kV level on the selected warm up schedule and the AUTOWARM sequence continues normally from that point The five AUTOWARM sequences are detailed next Autowarm Sequence 30 Days The following procedure outlines the steps to run up the kV to the ...

Страница 35: ...tically terminates x ray generation The LPX 200 is ready for use as indicated by the prompt on the Message Mode LCD OPERATE X RAY READY Autowarm Sequence 16 Hrs 7 Days The following procedure outlines the steps to run up the kV to the level required for the next exposure in cases where the unit has not been operated in the last 16 hours but within the last 7 days 1 Prepare the x ray system for the...

Страница 36: ...automatically terminates x ray generation The LPX 200 is ready for use as indicated by the prompt on the Message Mode LCD OPERATE X RAY READY Autowarm Sequence 4 Hrs 8 Hrs The following procedure outlines the steps to run up the kV to the level required for the next exposure in cases where the unit has not been operated in the last 4 hours but within the last 8 hours 1 Prepare the x ray system for...

Страница 37: ...art and information will appear in the Exposure Technique LCD 2 Perform the appropriate AUTOWARM Sequence Determine the amount of time the system has been idle Press SCROLL until the Message Mode LCD displays the appropriate AUTOWARM mode Cover the anode port with the lead shield Turn the Keyswitch to ON Press and hold the X RAY ON button for approximately 3 seconds to initiate x ray generation Pr...

Страница 38: ...quired Clear the area of unnecessary personnel Close all interlocks and start all warning signals Insert the key into the Keylock and place it to ON Press the X RAY ON button to begin x ray generation Note that if the kV level required for the next exposure is higher than the kV level for the previous exposure the x ray tube must be ramped up to that kV level by performing the appropriate AUTOWARM...

Страница 39: ...w 25 psi Make sure the Cooling Unit liquid cooled units or the cooling fan air cooled units is working properly Check the gas pressure within the Tubehead If the pressure is below 25 psi 70 F perform the Re pressurization or Re Filling procedure whichever is appropriate in Section 6 of this manual ARC DETECTED This fault condition is usually due to instability from a new tube or from an inadequate...

Страница 40: ...UTOWARM schedule then proceeds normally If the automatic reduction of kV reduces the kV level below 100kV the Message Mode LCD displays the error condition ARC SERVICE When this occurs switch the MAINS power switch OFF then back ON to restart the AUTOWARM sequence Occasionally with a new tube or with a tube that has been dormant reactions occur at kV levels below 100kV This prevents the kV level t...

Страница 41: ...following tables Note ALL discrepancies discovered during these inspections and immediately correct them to avoid equipment breakdown Perform the inspections described in these checklists on a weekly basis NOTE When operating in harsh environments perform the following inspection checks more often due to the higher concentration of dust and debris accumulating within each assembly Tubehead Checkli...

Страница 42: ...om top Radiator _______________ Check for cleanliness Check for dents cracks or damage Hoses _________________ Hose clamps firmly attached Check for cuts cracks or dry rot Drive Belt ______________ Check for cracks or frayed areas Check for proper belt tension Air Filter _______________ Check for cracks visible damage Check for cleanliness Pump Assembly _________ Rotates freely Check for signs of ...

Страница 43: ...ter casing of the Tubehead Control Unit and Cooling Unit 2 Remove dirt dust or debris from the front panel of the Control Unit using a 1 soft bristled paint brush To remove dirt that is not easily dislodged use a lint free cloth dampened in a warm water and mild detergent solution CAUTION DO NOT allow any water to enter the cable jackets or connectors when cleaning the equipment Always wring exces...

Страница 44: ...e SF6 gas to expand or contract at the rate of 1 psi for every 7 F increase decrease in ambient air temperature Allow for these changes when checking the Tubehead gas pressure or while re pressurizing re filling the Tubehead The following graph illustrates the maximum and minimum pressure limitation of the Tubehead at various temperature ranges Use this chart whenever the Tubehead is inspected re ...

Страница 45: ...rom the cylinder valve 3 with a 3 8 allen wrench The cylinder valve outlet is left hand threaded WARNING Use extreme care while handling the cylinder to preventing dropping it after the protective cover has been removed Secure the cylinder to a stationary post or secure it against tipping 2 Connect the SF6 charging regulator assembly 6 or equivalent to the SF6 cylinder valve NOTE The pressure regu...

Страница 46: ...he cylinder valve 7 Open the vacuum valve and run the pump an additional 10 minutes Close the vacuum line and stop the pump Open the SF6 cylinder valve again and fill the Tubehead to the pressure indicated on the Pressure vs Temperature chart Figure 6 2 When the Tubehead is at the correct pressure close the SF6 cylinder valve 8 Remove the charging hose connection at the Tubehead secure the gas cyl...

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Страница 48: ...oved Lift the filter strainer out of the assembly and quickly replace the cap nut to stem the flow of coolant solution 3 Remove contaminants from the filter with a solution of warm water and mild detergent The screen is made of delicate material and can be deformed quite easily Handle the filter with extreme care 4 Rinse the filter in clean warm water to remove excess detergent Remove the cap nut ...

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Страница 57: ...alified personnel aware of the electrical hazards WARNING note in the text call attention to hazards in operation of these units that could lead to possible injury or death CAUTION notes in the text indicate procedures to be followed to avoid possible damage to equipment Copyright 2000 Spellman High Voltage Electronics Corporation All Rights Reserved This information contained in this publication ...

Страница 58: ...azitäten des Hochspannungsnetzteiles benötigen ca 5 Minuten um sich zu entladen Erden Sie sich nicht und arbeiten Sie nicht in feuchter oder nasser Umgebung SERVICESICHERHEIT Notwendige Reparaturen können es erforderlich machen den Gehäusedeckel während des Betriebes zu entfernen Reparaturen dürfen nur von qualifiziertem eingewiesenem Personal ausgeführt werden WARNING im folgenden Text weist auf ...

Страница 59: ...capacité interne de l alimentation Ne vous mettez pas à la masse ou ne travaillez pas sous conditions mouillées ou humides CONSIGNES DE SÉCURITÉ EN CAS DE REPARATION La maintenance peut nécessiter l enlèvement du couvercle lorsque l alimentation est encore allumée Les réparations doivent être effectuées par une personne qualifiée et connaissant les risques électriques Dans le manuel les notes marq...

Страница 60: ...r permettere la scarica della capacità interna dell alimentatore ad alta tensione Non mettere a terra il proprio corpo oppure operare in ambienti bagnati o saturi d umidità SICUREZZA NELLA MANUTENZIONE Manutenzione potrebbe essere richiesta rimuovendo la copertura con apparecchio acceso La manutenzione deve essere svolta da personale qualificato coscio dei rischi elettrici Attenzione alle AVVERTEN...

Страница 61: ...To obtain information on Spellman s product warranty please visit our website at http www spellmanhv com en About Warranty aspx ...

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