Thermocouple Gauge and Octal Cable Replacement for VS Series
Contents
1. P 03100 Mexico D F Tel 52 5 523 9465 Fax 52 5 523 9472 Russia Central coordination through Varian Inc via F lli Varian 54 10040 Leini Torino Italy Tel 39 011 997 9 252 Fax 39 011 997 9 316 Taiwan Varian Technologies Asia Ltd 18F 13 No 79 Hsin Tai Wu Road Sec 1 Hsi Chih Taipei Hsien Taiwan R O C Tel 886 2 2698 9555 Fax 886 2 2698 9678 UK and Ireland Varian Ltd 28 Manor Road Walton On Thames Surrey KT 12 2QF England Tel 44 1932 89 8000 Fax 44 1932 22 8769 United States Varian Inc 121 Hartwell Avenue Lexington MA 02421 USA Tel 781 861 7200 Fax 781 860 5437 Other Countries Varian Inc Via F lli Varian 54 10040 Leini Torino Italy Tel 39 011 997 9 111 Fax 39 011 997 9 350 Customer Support and Service North America Tel 1 800 882 7426 toll free vtl technical support varianinc com Europe Tel 00 800 234 234 00 toll free vtl technical support varianinc com Japan Tel 81 3 5232 1253 dedicated line vtj technical support varianinc com Korea Tel 82 2 3452 2452 dedicated line vtk technical support varianinc com Taiwan Tel O 800 051 342 toll free vtw technical support varianinc com Worldwide Web Site Catalog and On line Orders www varianinc com Representatives in most countries2. Document No Revision 699909999 A ap VARIAN lt O ring Care When removing checking or replacing O rings keep in mind the following NOTE Varian recommends replacing all O rings during routine maintenance or during any maintenance procedure requiring that O rings be removed CAUTION Remove O rings carefully with your fingers Do not use metal tools for this task this prevents scratching of any sealing surfaces e Wipe all O rings clean with a lint free cloth before installation to ensure that no foreign matter is present to impair the seal e Do not use grease or any other substance on O rings that will come in contact with the vacuum surfaces e Do not use alcohol methanol or other solvents on O rings Doing so causes deterioration and reduces their ability to hold a vacuum e Varian does not recommend the use of vacuum grease If applicable apply a small amount of Apiezon L grease and wipe the O rings shiny dry Metal Seal Care CAUTION Metal Seals must be replaced any time a spectrometer is opened All fasteners must be installed and torqued per assembly procedure specifications Remove Metal Seals carefully with your fingers or a soft tool Metal tools scratch sealing surfaces e Metal Seals are supplied in pre cleaned condition No cleaning is required If necessary Metal Seals can be cleaned using the recommended solvents Wipe Metal Seals clean with a lint free cloth before installation to ensure that no for e
3. NOTICE This document contains references to Varian Please note that Varian Inc is now part of Agilent Technologies For more information go to www agilent com chem fh Agilent Technologies FIELD INSTALLATION Thermocouple Gauge 772 asra and Octal Cable Replacement for VS Series Leak Detectors Part Number 699909999 Rev A August 2006 Varian Field Instruction Sheet Thermocouple Gauge and Octal Cable Replacement for VS Series Leak Detectors Preface Documentation Standards This manual uses the following documentation standards NOTE Notes contain important information CAUTION Cautions appear before instructions which if not followed could cause damage to the equipment or data loss WARNING Warnings appear for a particular procedure or practice which if not followed correctly could lead to serious injury or death Hazard and Safety Information The common international symbols used in this manual and on the equipment are defined below O OFF Supply Power L Earth Ground Terminal ON Supply Power Caution Hot Surface AC Alternating Current Caution Risk of Electrical nnd AN Shock Protective Conductor Terminal Warning Risk of danger Frame or chassis Terminal Thermocouple Gauge and Octal Cable Replacement for VS Series Leak Detectors Page 1 of 8 EL Document No Revision 699909999 ap VARIAN 2N Operators and service personnel must be aware of all hazards associated with
4. ign matter impairs the seal e Do not use grease or any other substance on Metal Seals that will come in con tact with the spectrometer Spectrometer CAUTION Store the lon Source Preamplifier sub assembly in a cool dry area in a tightly sealed ESD protected container Wear non powdered ESD safe Nitride or equivalent gloves when handling the spectrometer Wash hands thoroughly after handling the spectrometer filaments and especially before smoking or eating The spectrometer and PCB s are static sensitive devices Wear a grounding strap when performing any maintenance on these units and especially when performing maintenance of static sensitive parts CAUTION The spectrometer operates at a very high vacuum produced by the high vacuum turbomolecular pump Service of the spectrometer requires that this vacuum be vented to the atmosphere Thermocouple Gauge and Octal Cable Replacement for VS Series Leak Detectors Page 3 of 8 Document No Revision 699909999 A ap VARIAN lt Equipment Required e Extended Length M5 Allen Wrench e Metric Allen Wrench Set Installation Procedure For clarity some items have been omitted from views Front Cover Screws Fear Cover Screws Pr Ei L TUI a i SS SH UNDI O a Figure 1 Rear and Front Cover Screws WARNING Disconnect power from the unit before performing any maintenance procedure that requires physically disconnec
5. its residue free properties Varian Component and Spectrometer Cleaning Kit Part Number 670029096 used in accordance with the kit instructions is recommended for cleaning spectrometer components The kit can also be used for fine cleaning of other parts in the leak detector s vacuum system such as valves and fittings No rinsing steps or high temperature drying is required following cleaning with VacuSolv Although appropriate precautions are advised VacuSolv is compatible with most materials and does not contain toxic chemicals or CFCs chlorofluorocarbons Other acceptable solvents are isopropyl alcohol IPA or Dow Corning OS 20 To clean the leak detector plastic enclosure the LCD display and Front Panel buttons use only a soft cloth slightly dampened with water or a mild soap Do NOT use excess water or cleaning solvents of any kind Avoid splashing any cleaning solvents into the unit through the ventilation openings or Front Panel buttons Wipe the surface with a dry lint free cloth Vacuum Equipment and Cleanliness Cleanliness is vital when servicing the leak detector or any vacuum equipment There are some techniques that are more important in leak detector servicing than in general vacuum work CAUTION Wear non powdered ESD safe Nitride or equivalent gloves to prevent skin oils from getting on spectrometer internal components Thermocouple Gauge and Octal Cable Replacement for VS Series Leak Detectors Page 2 of 8
6. on 699909999 A ap VARIAN lt Canada Central coordination through Varian Inc 121 Hartwell Avenue Lexington MA 02421 USA Tel 781 861 7200 Fax 781 860 5437 Toll Free 800 882 7426 China Varian Technologies Beijing Room 1201 Jinyu Mansion No 129A Xuanwumen Xidajie Xicheng District Beijing 1000031 P R China Tel 86 10 6608 1031 Fax 86 10 6608 1541 France and Benelux Varian s a 7 avenue des Tropiques Z A de Courtaboeuf B P 12 Les Ulis cedex Orsay 91941 France Tel 33 1 69 86 38 13 Fax 33 1 69 28 23 08 Germany and Austria Varian Deutschland GmbH Alsfelder Strasse 6 Postfach 11 14 35 64289 Darmstadt Germany Tel 49 6151 703 353 Fax 49 6151 703 302 India Varian India PVT LTD 101 108 1st Floor 1010 Competent House 7 Nangal Raya Business Centre New Delhi 110 046 India Tel 91 11 5548444 Fax 91 11 5548445 Italy Varian Inc Via F lli Varian 54 10040 Leini Torino Italy Tel 39 011 997 9 111 Fax 39 011 997 9 350 2 04 Sales and Service Offices Japan Varian Inc Sumitomo Shibaura Building 8th Floor 4 16 36 Shibaura Minato ku Tokyo 108 Japan Tel 81 3 5232 1253 Fax 81 3 5232 1263 Korea Varian Technologies Korea Ltd Shinsa 2nd Building 2F 966 5 Daechi dong Kangnam gu Seoul Korea 135 280 Tel 82 2 3452 2452 Fax 82 2 3452 2451 Mexico Varian S A Concepcion Beistegui No 109 Col Del Valle C
7. rd e Routing the replacement octal cable back through the assembly in the same position as the removed cable f Attaching the cable plug and the chassis ground to the location Figure 2 Fan and TC Gauge Assemblies g Installing the ground lug between the washer and screw and securing it using an M4 Allen wrench Figure 5 Ground Lug Position 8 Attach the fan assembly Figure 2 Fan and TC Gauge Assemblies by fastening the two wing nuts and one M4 socket head cap screw Then connect the fan cable to the unit 9 Attach the front cover and secure to the frame using existing hardware 10 Leak test the TC gauge to ensure a leak free joint 11 Attach the rear cover and secure to the frame using existing hardware 12 Connect the power cord and power up the unit Thermocouple Gauge and Octal Cable Replacement for VS Series Leak Detectors Page 7 of 8 Document No Revision 699909999 A ap VARIAN lt 13 Watch the home screen to verify that the Spectrometer Pressure Wait message progresses to Stabilization Wait and System Ready within ten minutes Refer to the operator s manual if the system fails to reach the System Ready mode 14 Refer to the TC gauge calibration section of the user s manual for the correct calibration procedure for the TC gauge 15 Varian recommends a full calibration of the unit prior to leak test operations Thermocouple Gauge and Octal Cable Replacement for VS Series Leak Detectors Page 8 of 8 Document No Revisi
8. this equipment They must know how to recognize hazardous and potentially hazardous conditions and know how to avoid them The consequences of unskilled improper or careless operation of the equipment can be serious Every operator or service person must read and thoroughly understand operation maintenance manuals and any additional information provided by Varian All warning and cautions must be read carefully and strictly observed Consult local state and national agencies regarding specific requirements and regulations Address any safety operation and or maintenance questions to your nearest Varian office Solvents WARNING The mechanical components of leak detectors may be cleaned with one of the recommended solvents When heated sprayed or exposed to high temperature equipment these solvents become flammable and explosive causing serious injury or death Do not use these solvents near a high temperature source Ventilate the working area with a blower and work in a large well ventilated room Solvents are irritants narcotics depressants and or carcinogens Their inhalation and or ingestion may produce serious side effects Prolonged or continued contact with the skin results in absorption through the skin and moderate toxicity Always ensure that cleaning operations are carried out in large well ventilated rooms and wear eye shields gloves and protective clothing Due to the effective cleaning nature of VacuSolv solvent and
9. ting any part of the system 1 Turn off the power switch located on the back of the unit and unplug 2 Wait 30 seconds for the high voltage to dissipate 3 Using an extended length M5 Allen wrench remove the four screws holding the rear plastic cover Figure 1 Rear and Front Cover Screws and detach the rear plastic cover from the unit 4 Remove the four screws holding the front plastic cover and detach the cover from the unit Two screws are situated at the front of the unit not shown and two screws are positioned inside the unit Figure 1 Rear and Front Cover Screws Thermocouple Gauge and Octal Cable Replacement for VS Series Leak Detectors Page 4 of 8 Document No Revision 699909999 A ap VARIAN lt Fan Bracket Assembly Wing nut TC Cable Ground Stud Location TC Cable PCB Plug Location Figure 2 Fan and TC Gauge Assemblies NOTE Cables not shown for clarity 5 Disconnect the fan cable and remove the fan assembly by unfastening two wing nuts and one M4 socket head cap screw Figure 2 Fan and TC Gauge Assemblies Thermocouple Gauge and Octal Cable Replacement for VS Series Leak Detectors Page 5 of 8 Document No Revision 699909999 A ap VARIAN lt Thermocouple Gauge Replacement O ring position Valve block and TC vent orientation Figure 3 Thermocouple Gauge Orientation 6 Replace the TC Gauge VSFLDOG by a Disconnecting the octal connector from the TC gauge Figure 3 Thermoco
10. uple Gauge Oreintation b Using an M4 Allen wrench to remove the TC gauge from the valve block Retain both screws and the two wash ers and discard the old TC Gauge and O ring c Placing the new O ring onto the replacement TC Gauge d Installing the replacement TC Gauge orientate the TC vent towards the base of the valve block 6 o clock posi tion and loosely install existing hardware Figure 3 Thermocouple Gauge Oreintation e Installing the ground lug between the washer and the screw Figure 5 Ground Lug Position and secure the exist ing hardware using an M4 Allen wrench f Reconnecting the octal connector to the TC Gauge Figure 5 Ground Lug Position g If an Octal cable installation is required then proceed to step 7 otherwise proceed to step 8 Thermocouple Gauge and Octal Cable Replacement for VS Series Leak Detectors Page 6 of 8 Document No Revision 699909999 A ap VARIAN lt Octal Cable Replacement Octal Connector Te Gane Ground Lug i Figure 4 Octal Cable 7 Replace the octal cable VSFLDOC by a Disconnecting the octal connector from the TC gauge Figure 4 Octal Cable b Using an M4 Allen wrench loosen the lower TC gauge screw and remove the ground lug Figure 4 Octal Cable c Detaching the cable plug from the mother board PCB and disconnecting the ground cable form the chassis Fig ure 2 Fan and TC Gauge Assemblies d Removing the octal cable from the cable ties and disca
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