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Agilent Technologies 5975C TAD VL MSD, Troubleshooting And Maintenance Manual

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Agilent Technologies 5975C TAD VL MSD Troubleshooting And Maintenance Manual Download Page 68

68

5975 Series MSD Troubleshooting and Maintenance Manual

3

CI Troubleshooting

Signal-Related Symptoms 

This section describes symptoms related to the signal. The symptom may be 
too much signal, too little signal, a noisy signal, or an incorrect signal. 
Signal-related symptoms are generally observed during tuning but may also be 
observed during data acquisition. 

Error messages in autotune due to insufficient signal may vary.

The following symptoms are covered in more detail in this section:

•

No peaks. See 

page

 69

.

•

No or low reagent gas signal. See 

page

 71

.

•

No or low PFDTD signal. See 

page

 73

.

•

Excessive noise. See 

page

 74

.

•

Low signal-to-noise ratio. See 

page

 74

.

•

Large peak at 

m/z

 19. See 

page

 75

.

•

Peak at 

m/z

 32. See 

page

 76

.

Summary of Contents for 5975C TAD VL MSD

Page 1: ...Agilent Technologies Agilent 5975 Series MSD Troubleshooting and Maintenance Manual...

Page 2: ...he implied warranties of merchantability and fitness for a par ticular purpose Agilent shall not be liable for errors or for incidental or consequential damages in connec tion with the furnishing use...

Page 3: ...Ionization CI systems 16 Changing modes 17 Important Safety Warnings 18 Hydrogen Safety 20 Safety and Regulatory Certifications 25 Cleaning Recycling the Product 28 Moving or Storing the MSD 28 2 Gen...

Page 4: ...cro Ion Vacuum Gauge 92 To Move or Store the MSD 94 To Check and Add Foreline Pump Oil 96 To Drain the Foreline Pump 98 To Refill the Foreline Pump 100 To Check the Diffusion Pump Fluid 101 To Separat...

Page 5: ...move the Foreline Gauge 129 To Reinstall the Foreline Gauge 130 Maintaining the Analyzer 131 Maintaining the GC MSD Interface 153 Maintaining the Electronics 157 5 CI Maintenance To Clean the CI Ion S...

Page 6: ...82 Foreline Gauge 184 Diffusion Pump and Fan 185 Turbo Pump and Fan 191 Calibration Valves and Vent Valve 192 Micro Ion Vacuum Gauge 195 7 Analyzer Overview 198 EI Ion Source 200 CI Ion Source 202 Fil...

Page 7: ...223 Power Supplies 224 Back Panel and Connectors 225 Interfacing to External Devices 228 9 Parts To Order Parts 232 Electronics 233 Local Control Panel 238 Vacuum System 240 Analyzer 250 EI GC MSD In...

Page 8: ...8 5975 Series MSD Troubleshooting and Maintenance Manual...

Page 9: ...e oil pan under the standard foreline pump can be a fire hazard 19 Hydrogen Safety 20 Dangers unique to GC MSD operation 21 Hydrogen accumulation in an MSD 21 Precautions 23 Safety and Regulatory Cert...

Page 10: ...pumps Model name Product number Description Ionization modes 5975C TAD VL MSD G3170A Diffusion Pump MSD Electron impact EI 5975C TAD inert MSD 5975C TAD inert XL MSD G3171A G3172A Standard Turbo MSD...

Page 11: ...ibrant CI Chemical ionization DC Direct current DFTPP Decafluorotriphenylphosphine calibrant DIP Direct insertion probe DP Diffusion pump EI Electron impact ionization EM Electron multiplier detector...

Page 12: ...Perfluoro 5 8 dimethyl 3 6 9 trioxydodecane calibrant PFHT 2 4 6 tris perfluoroheptyl 1 3 5 triazine calibrant PFTBA Perfluorotributylamine calibrant Quad Quadrupole mass filter RF Radio frequency RF...

Page 13: ...ectangular box approximately 42 cm high 26 cm wide and 65 cm deep The weight is 25 kg for the diffusion pump mainframe 26 kg for the standard turbo pump mainframe and 29 kg for the performance turbo p...

Page 14: ...urbo Performance turbo Performance turbo Optimal He column flow mL min 1 1 1 to 2 1 to 2 Maximum recommended gas flow mL min Total gas flow into the MSD column flow plus reagent gas flow if applicable...

Page 15: ...ting and Maintenance Manual 15 MSD Hardware Description Figure 1 is an overview of a typical GC MSD system Figure 1 5975 Series GC MSD system ALS 7890A GC CI gas flow module Local control panel 5975 S...

Page 16: ...therwise specified to the flow modules for these instruments The 5975 Series CI system adds to the 5975 Series MSD EI CI GC MSD interface CI ion source and interface tip seal Reagent gas flow control...

Page 17: ...nging modes Switching back and forth between CI and EI sources takes less than an hour although a 1 to 2 hour wait is required to purge the reagent gas lines and bake out water and other contaminants...

Page 18: ...cables connected to these boards The wires for any heater oven detector inlet or valve box Electrostatic discharge is a threat to MSD electronics The printed circuit boards in the MSD can be damaged...

Page 19: ...n it The oil pan under the standard foreline pump can be a fire hazard Oily rags paper towels and similar absorbents in the oil pan could ignite and damage the pump and other parts of the MSD WARNING...

Page 20: ...en Safety Guide which is included on the Agilent GC GCMSD Hardware User Information Instrument Utilities DVD WARNING The use of hydrogen as a GC carrier gas is potentially dangerous WARNING When using...

Page 21: ...sers should be aware of the mechanisms by which hydrogen can accumulate Table 4 and know what precautions to take if they know or suspect that hydrogen has accumulated Note that these mechanisms apply...

Page 22: ...he mass spectrometer GC off A GC can be shut down deliberately It can also be shut down accidentally by an internal or external failure Different GCs react in different ways If a 6890 GC equipped with...

Page 23: ...laboratory as many ignition sources as possible open flames devices that can spark sources of static electricity etc Do not allow hydrogen from a high pressure cylinder to vent directly to atmosphere...

Page 24: ...ure occurs while the GC MSD system is unattended even if the system has restarted by itself 1 Immediately turn off the hydrogen at its source 2 Turn off the GC 3 Turn off the MSD and allow it to cool...

Page 25: ...5 Series MSD is designed and manufactured under a quality system registered to ISO 9001 Information The Agilent Technologies 5975 Series MSD meets the following IEC International Electro technical Com...

Page 26: ...and the intended use of the instrument Agilent Technologies assumes no liability for the customer s failure to comply with these requirements See accompanying instructions for more information Indicat...

Page 27: ...g measures 1 Relocate the radio or antenna 2 Move the device away from the radio or television 3 Plug the device into a different electrical outlet so that the device and the radio or television are o...

Page 28: ...ontact your local Agilent sales office Moving or Storing the MSD The best way to keep your MSD functioning properly is to keep it pumped down and hot with carrier gas flow If you plan to move or store...

Page 29: ...th CI specific problems For each symptom one or more possible causes are listed In general the causes listed first are the most likely causes or the easiest to check and correct If the material in thi...

Page 30: ...or incorrect gas If the GC column was just replaced suspect air leaks or contaminated or bleeding column Rule 2 If complex isn t working go back to simple A complex task is not only more difficult to...

Page 31: ...Nothing happens when the MSD is switched on The foreline pump does not start The cooling fan for the high vacuum pump does not turn on The local control panel is not on Disconnected MSD power cord No...

Page 32: ...ate has not sealed correctly or the vent valve is still open This feature helps prevent the foreline pump from sucking air through the system which can damage the analyzer and pump See Pumpdown failur...

Page 33: ...ass spectral data No peaks If an analysis shows no chromatographic peaks only a flat baseline or minor noise run one of the automated tune programs If the MSD passes tune the problem is most likely re...

Page 34: ...ple path Injection is too large Incorrect GC inlet temperature Insufficient column flow GC MSD interface temperature is too low Ion source temperature is too low Peaks are fronting Column film thickne...

Page 35: ...bleed Other contamination Electron multiplier voltage is too high Baseline is falling A falling baseline indicates contamination is being swept away Wait until the baseline reaches an acceptable leve...

Page 36: ...condition in the GC that would prevent the GC from operating Retention times for all peaks drift shorter Column has been shortened Initial oven temperature was increased Column is getting old Retenti...

Page 37: ...s too short Excessive pressure in the MSD Dirty ion source Air leak Poor filament operation Detector HED electron multiplier is not working correctly Incorrect mass filter polarity This could cause a...

Page 38: ...resentative Two symptoms listed under Chromatographic symptoms If sensitivity is poor and If repeatability is poor also apply to mass spectra No peaks Ion source cables not connected Bad connections t...

Page 39: ...ecently or at the temperature at which it is operating Incorrect tune file inappropriate parameters Peaks have precursors The tune report lists the size of the precursors for the tune masses Small pre...

Page 40: ...y at high masses can be excellent even if the relative abundance of m z 502 is near 3 If your MSD produces low absolute abundances at high masses refer to the symptom High mass sensitivity is poor Tun...

Page 41: ...used with the relative abundance percentage of m z 502 to m z 69 Sensitivity at high masses can be excellent even if the relative abundance of m z 502 is low Wrong tune program Wrong tune file Repelle...

Page 42: ...not have foreline pressure gauges The analyzer chamber pressures can only be measured if your system is equipped with the optional gauge controller Foreline pressure is too high If the pressure you o...

Page 43: ...too low If the pressures you observe are below 1 10 6 Torr check for the following Column carrier gas flow is too low Column plugged or crushed by overtightened nut Empty or insufficient carrier gas s...

Page 44: ...hooting and Maintenance Manual 2 General Troubleshooting Power indicator on the gauge controller does not light Unplugged gauge controller power cord Incorrect or inadequate line voltage 24 V supply F...

Page 45: ...odels or connected to the manual valve thermal zone for dual inlet models Ion source will not heat up High vacuum pump is off or has not reached normal operating conditions Incorrect temperature setpo...

Page 46: ...n error message GC MSD interface will not heat up Incorrect setpoint s Setpoint entered in wrong heated zone GC MSD interface has not had enough time to reach temperature setpoint GC is off GC experie...

Page 47: ...s filter quad contacts are shorted or otherwise not working correctly Mass filter is not working correctly MSD electronics are not working correctly Difficulty with the electron multiplier supply Larg...

Page 48: ...within 7 minutes or experienced a fault You must switch the MSD off and back on to remove this error message Be sure the diffusion pump has cooled or the turbo pump has slowed down before switching of...

Page 49: ...on pump MSD only Internal MS communication fault MSD electronics are not working correctly Lens supply fault Electrical short in the analyzer MSD electronics are not working correctly Log amplifier AD...

Page 50: ...ther the ion source or mass filter quad heater The cause can be further isolated by selecting Status MS Temp Ctlr Status in the Tune and Vacuum Control view One of the following should be displayed as...

Page 51: ...ly caused by a GC fault an ALS fault or a bad cable connection Once the cause of the fault is corrected selecting MS ON or checking MSD status should remove the message The system is in vent state The...

Page 52: ...rrectly There is not enough signal to begin tune Corrupted tune file Poor mass axis calibration Amu gain or offset is too high Calibration vial s empty or almost empty Excessive pressure in the analyz...

Page 53: ...6 Poor sensitivity Low relative abundance of m z 502 this varies with the tune program used Leaks can occur in either the GC or the MSD The most likely point for an air leak is a seal you recently ope...

Page 54: ...tamination originating in the GC typically comes from one of these sources Column or septum bleed Dirty GC inlet GC inlet liner Contaminated syringe Poor quality carrier gas Dirty carrier gas tubing F...

Page 55: ...58 Acetone Cleaning solvent 78 Benzene Cleaning solvent 91 92 Toluene or xylene Cleaning solvent 105 106 Xylene Cleaning solvent 151 153 Trichloroethane Cleaning solvent 69 Foreline pump oil or PFTBA...

Page 56: ...56 5975 Series MSD Troubleshooting and Maintenance Manual 2 General Troubleshooting...

Page 57: ...s 58 Troubleshooting Tips and Tricks 59 Air Leaks 60 Pressure Related Symptoms 64 Signal Related Symptoms 68 Tuning Related Symptoms 77 This chapter outlines the troubleshooting of 5975 Series MSDs eq...

Page 58: ...ty As with EI if the MSD tunes well and no air leak is present sample sensitivity problems should be addressed by GC inlet maintenance first Wrong reagent gas Reagent gas not hooked up or hooked up to...

Page 59: ...reagent gas suspect the tune file you have loaded in memory Is it the appropriate file for your mode of operation Rule 2 If complex isn t working go back to simple A complex task is not only more dif...

Page 60: ...roller is calibrated for nitrogen so measurements are not accurate in absolute terms Familiarize yourself with the measurements on your system under operating conditions Watch for changes that may ind...

Page 61: ...ems in NCI To check for this kind of air leak in NCI inject OFN The base peak should be at m z 272 If the abundance of m z 238 is much greater than that of m z 272 you have an air leak How do I find t...

Page 62: ...e in CI mode are located in either the carrier gas or reagent gas flow paths Leaks into the analyzer chamber are not likely to be seen in CI because of the higher pressure inside the ionization chambe...

Page 63: ...ve Restrictor Calibration vial Shutoff valve GC MSD interface GC column CI ion source Table 6 Flow module valve state diagram Result Gas A flow Gas B flow Purge with Gas A Purge with Gas B Pump out fl...

Page 64: ...en so these measurements are not accurate in absolute terms Table 7 They are intended as a guide to typical observed readings They were taken with the following set of conditions Source temperature 25...

Page 65: ...correct any leaks See the Leaks section at the beginning of this chapter The foreline pump is not working properly For the standard foreline pump replace the pump oil If that does not help or for the...

Page 66: ...s appropriate Verify that reagent ion ratios are correct Air leak Run Methane Pretune See the Operation Manual Visible peak at m z 32 indicates air in the system Check for and correct any leaks See th...

Page 67: ...a for isobutane or ammonia The valve on the reagent gas bottle is closed Check and if necessary open the valve on the reagent gas bottle The reagent gas supply is empty Check and if necessary replace...

Page 68: ...related symptoms are generally observed during tuning but may also be observed during data acquisition Error messages in autotune due to insufficient signal may vary The following symptoms are covered...

Page 69: ...for background ions and check pressure Wrong reagent gas selected for the tune file looking for wrong ions Large air leak Dirty ion source Poor vacuum pump problem See page 64 If MSD was recently swi...

Page 70: ...sible go back to methane PCI No PFDTD calibrant peaks in NCI Look for background ions 17 OH 35 Cl and 235 ReO3 Verify tune parameters Go back to methane PCI No sample peaks in NCI Look for background...

Page 71: ...gas flow Reagent gas supply tubing is blocked kinked pinched or disconnected Inspect and if necessary repair or replace the reagent gas supply tubing Wrong filament wires are connected to filament Mak...

Page 72: ...ty the entire ion source probably needs to be cleaned See General Maintenance on page 83 for more information Ion source wires are not connected or incorrectly connected Inspect the repeller Make sure...

Page 73: ...er is too high Make sure the regulator on the methane supply is set to 10 psig 70 kPa The CI ion source is dirty Clean the ion source See CI Maintenance on page 163 for more information The calibratio...

Page 74: ...on the high vacuum gauge controller Air leak Run Methane Pretune in PCI Large peak at m z 32 indicates air in the system Check for and correct any leaks See the Leaks section at the beginning of this...

Page 75: ...tem The system was not baked out sufficiently after it was last vented Bake out the system as described in the Maintenance chapter of this manual Moisture left over in the reagent gas supply tubing an...

Page 76: ...s supply lines and flow module for at least 60 minutes See the Operation Manual Air leak Check for leaks and correct any that you find See Air Leaks on page 60 After all leaks have been corrected clea...

Page 77: ...s section describes symptoms related to tuning Most symptoms involve difficulties with tuning or with the results of tuning The following symptoms are covered in this section CI ion ratio is difficult...

Page 78: ...ge the reagent gas supply lines and bake out the MSD See page 168 Continued presence of a large peak at m z 32 may indicate an air leak After correcting the problems you may need to clean the ion sour...

Page 79: ...lection point If the curve is linear with a positive slope and no inflection point and the EMV is high the filament has stretched to the point where it does not line up with the hole in the ion source...

Page 80: ...on ratio for methane is incorrect The correct ratio should be between 1 5 and 5 0 If the ion ratio is incorrect adjust it See the Operation Manual The CI ion source is dirty Clean the ion source See T...

Page 81: ...eters The CI ion source is dirty Clean the ion source See the CI Maintenance chapter of this manual for more information Air leak Run Methane Pretune in PCI A visible peak at m z 32 indicates air in t...

Page 82: ...82 5975 Series MSD Troubleshooting and Maintenance Manual 3 CI Troubleshooting...

Page 83: ...he MSD to the 6850 GC 106 To Refill the EI Calibration Vial 109 To Purge the Calibration Valves 111 To Remove the EI Calibration and Vent Valve Assembly 112 To Reinstall the EI Calibration and Vent Va...

Page 84: ...al operation and to take corrective action Table 8 Maintenance schedule Task Every week Every 6 months Every year As needed Tune the MSD X Check the foreline pump oil level X Check the calibration via...

Page 85: ...itch is on potentially dangerous voltages exist on Electronic circuit boards Toroidal transformer Wires and cables between these boards Wires and cables between these boards and the connectors on the...

Page 86: ...d your samples Exhaust from the standard foreline pump also contains tiny droplets of foreline pump oil An oil trap is supplied with the standard foreline pump This trap stops only pump oil droplets I...

Page 87: ...to sensitive components on the side board ESD damage may not cause immediate failure but it will gradually degrade the performance and stability of your MSD When you work on or near printed circuit b...

Page 88: ...hat have been removed from the MSD This includes the analyzer CAUTION To be effective an antistatic wrist strap must fit snugly not tight A loose strap provides little or no protection Antistatic prec...

Page 89: ...ion standard foreline pump Replacing the diffusion pump fluid once a year Checking the dry foreline pump diaphragms typically every 3 years Failure to perform these tasks as scheduled can result in de...

Page 90: ...ribbon cable from the back of the local control panel 3 Remove the three screws that hold the left side cover in place 4 Pull the cover left slightly to disengage the two right side tabs and then pull...

Page 91: ...SD Troubleshooting and Maintenance Manual 91 Figure 4 Removing covers Analyzer cover Analyzer window cover Latch Left side cover CAUTION Do not use excessive force or the plastic tabs that hold the co...

Page 92: ...required for operating the MSD in CI mode Materials needed Micro Ion vacuum gauge G3397A Power cord Micro Ion vacuum gauge cable G3170 60805 CI flow module cable Smart Card to CI flow G3170 60808 Pro...

Page 93: ...General Maintenance 4 5975 Series MSD Troubleshooting and Maintenance Manual 93 Figure 5 Micro Ion vacuum gauge cables CI and upgraded MSDs EI only MSDs...

Page 94: ...Unplug the GC MSD interface heater cable from the GC 6 Install the interface nut with the blank ferrule 7 Open the analyzer cover 8 Finger tighten the side plate thumbscrews Figure 6 9 Plug the MSD po...

Page 95: ...st be moved with the MSD Make sure the MSD remains upright and is never tipped on its side or inverted Figure 6 Side plate thumbscrews Front thumbscrew Rear thumbscrew CAUTION The MSD must remain upri...

Page 96: ...ar If the oil level is near or below the lower line follow steps 2 through 6 to add foreline pump oil If your MSD is nearing its scheduled time for replacement of the foreline pump oil replace the oil...

Page 97: ...4 5975 Series MSD Troubleshooting and Maintenance Manual 97 5 Reinstall the fill cap 6 Pump down the MSD Figure 7 Foreline pump standard pump shown without safety cage Fill cap Oil level lines Drain p...

Page 98: ...The foreline pump may be located on the floor on the lab bench next to or behind the MSD or under the analyzer chamber at the back of the MSD 3 Place a book or other object under the pump motor to ti...

Page 99: ...975 Series MSD Troubleshooting and Maintenance Manual 99 6 Replace the drain plug after draining the oil 7 Refill the foreline pump until the oil level is between the two fill marks in the site window...

Page 100: ...the propping object from under the pump motor 4 Add foreline pump oil until the oil level in the window is near but not above the upper line The foreline pump requires approximately 0 28 L of oil 5 W...

Page 101: ...diffusion pump is on and is at its normal operating temperature Use the COLD marks if the pump is off and has had time to cool If the fluid level is below the bottom of the appropriate range replace...

Page 102: ...102 5975 Series MSD Troubleshooting and Maintenance Manual 4 General Maintenance Figure 8 Diffusion pump Fan Fluid level window sight glass...

Page 103: ...chamber at the back of the MSD Move it as needed to provide slack in the tubing and cables 5 Move the MSD away from the GC until you have access to the GC MSD interface cable Figure 9 6 Place a colum...

Page 104: ...Interface cable 6850 GC has only one location for the MSD interface The interstitial panel is needed to set the proper distance between the GC and the MSD 5975 Series MSD and 6850 GC Interstitial pan...

Page 105: ...SD interface cable 3 Slide the MSD to its regular position next to the GC Be careful not to damage the GC MSD interface as it passes into the GC Make sure the end of the GC MSD interface extends into...

Page 106: ...710 0510 Screwdriver Torx T 15 8710 1622 Procedure 1 Position the MSD so that it is near the GC 2 If not installed install the GC MSD interstitial panel part number G2589 00031 onto the midsupport and...

Page 107: ...nce Manual 107 3 Connect the GC and the MSD end of the GC MSD interface cable See Figure 11 4 Carefully push the MSD and GC together Figure 11 Interstitial panel installed GC MSD interface cable conne...

Page 108: ...o the GC oven See Figure 12 5 The foreline pump may be located on the floor on the lab bench next to or behind the MSD or under the analyzer chamber at the back of the MSD Move it as needed to provide...

Page 109: ...um Control view select MS OFF from the Execute menu In the Instrument Control view in the Edit Parameters dialog box select MS OFF from the Execute menu 3 If your MSD is equipped with a vacuum gauge t...

Page 110: ...ar as possible 9 Withdraw the vial 1 mm This prevents damage when you tighten the collar 10 Turn the collar clockwise to tighten it The collar should be snug but not overly tight Do not use a tool to...

Page 111: ...al minutes with all analyzer voltages turned off CI calibration valve After adding new PFDTD to the calibrant vial you must purge the air out of the vial and valve 1 If the vacuum gauge controller is...

Page 112: ...sconnect it 3 Loosen the collar and remove the calibration vial Figure 13 Just loosen the collar do not remove it 4 Remove the two screws holding the valve assembly to the top of the analyzer chamber...

Page 113: ...O ring is in place If it is worn or damaged replace it 3 Install the calibration and vent valve assembly and tighten the screws that hold it in place 4 Reconnect the calibration valve cable to the co...

Page 114: ...e fan wiring from the old fan The fan wiring ends in a small connector on the back of the fan 6 Connect the fan wiring to the new fan 7 Install the new fan with the flow arrow on the side pointing tow...

Page 115: ...General Maintenance 4 5975 Series MSD Troubleshooting and Maintenance Manual 115 Figure 14 Replacing the pump fan turbo pump shown Fan wiring Fan wiring connector...

Page 116: ...he back of the Micro Ion vacuum gauge 3 Unscrew the red plastic thumbnut on the gauge clamp 4 Remove the long screw from the clamp 5 While supporting the gauge body remove the clamp from the mounting...

Page 117: ...KF16 O ring 0905 1463 Procedure 1 Place the KF16 O ring in the groove on the analyzer chamber flange Replace it if it is worn or damaged 2 Hold the gauge flange against the chamber flange with the O...

Page 118: ...t trace on the side plate Procedure 1 Vent the MSD 2 Open the analyzer chamber 3 Use a clean lint free cloth or glove to spread a thin coat of high vacuum grease only on the exposed surface of the O r...

Page 119: ...General Maintenance 4 5975 Series MSD Troubleshooting and Maintenance Manual 119 Figure 15 Side plate O ring Side plate O ring...

Page 120: ...is procedure Procedure 1 Vent the MSD 2 Completely remove the vent valve knob Figure 16 3 Inspect the O ring If the O ring appears damaged replace it 4 Use a clean lint free cloth or glove to spread a...

Page 121: ...nstall the vent valve knob 7 Pump down the MSD Figure 16 Vent valve O ring Vent valve knob Vent valve O ring CAUTION Be very careful when reinstalling the vent valve knob It is possible to cross threa...

Page 122: ...oreline gauge assembly from the diffusion pump outlet The foreline gauge cable can be disconnected or can remain connected to the foreline gauge 4 Disconnect the diffusion pump temperature sensor wire...

Page 123: ...ffusion pump fluid on it and will be very sticky Place the O ring on clean aluminum foil shiny side down to keep your lab bench and the O ring clean 10 Remove the diffusion pump through the side of th...

Page 124: ...op of the diffusion pump 2 Cover the top of the diffusion pump with aluminum foil shiny side up 3 Heat the diffusion pump at 60 C for 15 minutes For 6890 7820A or 7890A GC s you can use the GC oven 4...

Page 125: ...luid may also be baked onto the internal parts stack of the pump If so you may have to remove the diffusion pump stack and clean its parts and the interior of the pump with methylene chloride Be very...

Page 126: ...fusion pump fluid into diffusion pump until the fluid level is within the FULL COLD range The recommended charge for this pump is 30 mL It will require approximately 1 5 of the bottles 18 5 mL each of...

Page 127: ...diffusion pump into the MSD You may have to tilt the pump slightly to get it into the MSD Do not tilt it past 45 degrees 3 Install the O ring assembly on the diffusion pump See Figure 19 4 Lift the di...

Page 128: ...975 Series MSD Troubleshooting and Maintenance Manual 4 General Maintenance Figure 19 Reinstalling the diffusion pump Foreline gauge assembly KF50 clamp O ring assembly Diffusion pump Diffusion pump o...

Page 129: ...103 3 Unplug the foreline gauge cable from the foreline gauge 4 Disconnect the foreline gauge assembly from the diffusion pump outlet 5 Loosen the hose clamp 6 Pull the foreline gauge assembly out of...

Page 130: ...eline hose 2 Tighten the hose clamp 3 Reconnect the foreline gauge cable to the foreline gauge 4 Reconnect the foreline gauge assembly to the diffusion pump outlet 5 Reconnect the MSD to the GC See pa...

Page 131: ...ion software provides more extensive information Precautions Cleanliness Keep components clean during analyzer maintenance Analyzer maintenance involves opening the analyzer chamber and removing parts...

Page 132: ...ilter should never be disturbed In the event of extreme contamination it can be cleaned but such cleaning should only be done by a trained Agilent Technologies service representative The HED ceramic i...

Page 133: ...rocedure 1 Remove the ion source See the Operation Manual 2 Remove the filaments Figure 20 3 Separate the repeller assembly from the source body The repeller assembly includes the source heater assemb...

Page 134: ...nance Figure 20 Disassembling the EI ion source Source body Filament Setscrew Interface socket Repeller Repeller insulator Source heater assembly Repeller insulator Washer Repeller nut Ion focus lens...

Page 135: ...Gloves clean lint free Large 8650 0030 Small 8650 0029 Solvents Acetone reagent grade Methanol reagent grade Methylene chloride reagent grade Ultrasonic bath Preparation 1 Disassemble the ion source S...

Page 136: ...tenance Manual 4 General Maintenance CAUTION If insulators are dirty clean them with a cotton swab dampened with reagent grade methanol If that does not clean the insulators replace them Do not abrasi...

Page 137: ...Maintenance 4 5975 Series MSD Troubleshooting and Maintenance Manual 137 Figure 21 Source parts to be cleaned Source body Repeller Interface socket Drawout plate Drawout cylinder Ion focus lens Entran...

Page 138: ...e methanol Make sure all abrasive residue is rinsed way before ultrasonic cleaning If the methanol becomes cloudy or contains visible particles rinse again 6 Separate the parts that were abrasively cl...

Page 139: ...nce Manual 139 WARNING Let the parts cool before you handle them NOTE Take care to avoid recontaminating cleaned and dried parts Put on new clean gloves before handling the parts Do not set the cleane...

Page 140: ...into the source body 4 Install the setscrew that holds the lenses in place 5 Reinstall the repeller repeller insulators washer and repeller nut into the source heater assembly The resulting assembly...

Page 141: ...Figure 22 Assembling the ion source Interface socket Source body Setscrew Repeller Repeller insulator Filament 1 of 2 Source heater assembly Repeller insulator Washer Repeller nut do not over tighten...

Page 142: ...n lint free Large 8650 0030 Small 8650 0029 Hex ball driver 1 5 mm 8710 1570 Procedure 1 Vent the MSD 2 Open the analyzer chamber 3 Remove the ion source See the Operation Manual 4 Remove the filament...

Page 143: ...General Maintenance 4 5975 Series MSD Troubleshooting and Maintenance Manual 143 Figure 23 Replacing filaments Filament 1 Filament 2...

Page 144: ...next to the ion source body 5 Replace the screw to the ion source body 6 After installing the filament verify that it is not grounded to source body 7 Reinstall the ion source See the Operation Manua...

Page 145: ...20 Procedure 1 Vent the MSD 2 Open the analyzer chamber 3 Remove the ion source from the source radiator See the Operation Manual 4 Remove the filaments 5 Remove the repeller assembly Figure 24 The re...

Page 146: ...SD Troubleshooting and Maintenance Manual 4 General Maintenance Figure 24 Replacing the heater and sensor Source body Repeller Repeller insulator Filament Filament Repeller nut washer insulator Source...

Page 147: ...ady assembled 2 Reinstall the repeller repeller insulators washer and repeller nut Figure 24 The resulting assembly is called the repeller assembly 3 Connect the repeller assembly to the source body 4...

Page 148: ...all 8650 0029 Hex ball driver 1 5 mm 8710 1570 Hex ball driver 2 0 mm 8710 1804 Procedure 1 Vent the MSD 2 Open the analyzer chamber 3 Disconnect the mass filter heater and temperature sensor wires fr...

Page 149: ...0 1804 Mass filter heater assembly G1099 60172 Procedure 1 Unpack the new mass filter heater assembly Figure 25 The heater temperature sensor and heater block are already assembled 2 Install the heate...

Page 150: ...150 5975 Series MSD Troubleshooting and Maintenance Manual 4 General Maintenance Figure 25 Mass filter heater and sensor Mass filter radiator Heater sensor assembly...

Page 151: ...pen the retaining clip Figure 26 Lift the arm of the clip up and then swing the clip away from the electron multiplier horn 4 Remove the electron multiplier horn 5 Install the new electron multiplier...

Page 152: ...152 5975 Series MSD Troubleshooting and Maintenance Manual 4 General Maintenance 8 Pump down the MSD Figure 26 Replacing the electron multiplier horn Electron multiplier horn Retaining clip...

Page 153: ...enance Rarely the heater cartridge in the GC MSD interface fails In those cases it is necessary to replace the heater and sensor This section contains procedures for removing the heater and sensor and...

Page 154: ...loosen the heater sleeve from the interface 8 Loosen the setscrew and remove the heater and temperature sensor from the heater sleeve Heat and oxidation often result in a heater or less frequently a...

Page 155: ...ng a new heater and sensor in a damaged heater sleeve will result in poor performance of the heated zone and could reduce the lifetime of the new parts Figure 28 Replacing the GC MSD interface heater...

Page 156: ...eater sleeve so the screws are on top Tighten the screws evenly 4 Slide the insulation onto the GC MSD interface 5 Reinstall the GC MSD interface cover Make sure the wires from the heater and sensor p...

Page 157: ...y electrostatic discharge ESD Do not handle or touch these boards unless absolutely necessary In addition wires contacts and cables can conduct ESD to the printed circuit boards to which they are conn...

Page 158: ...assemblies that have been removed from the MSD This includes the analyzer More information is available If you need more information about the functions of electronic components refer to Chapter 8 Ele...

Page 159: ...nificantly affect coil adjustment 4 In the Tune and Vacuum Control view select Optimize Quadrupole Frequency from the Execute menu 5 Enter an m z value of 100 6 Slowly turn the quad frequency adjustme...

Page 160: ...ugh 7 for m z 650 The minimum voltage is typically between 300 and 340 mV 9 Exit the Set Optimize Quadrupole Frequency program 10 Select MS OFF from the Execute menu 11 Close the analyzer cover 12 Tun...

Page 161: ...d the MSD will already be off but for safety you should switch off the MSD and unplug the power cord It is not necessary to allow air into the analyzer chamber 2 Turn one of the fuse holders Figure 30...

Page 162: ...nce Manual 4 General Maintenance 6 Repeat steps 3 through 6 for the other fuse Always replace both fuses 7 Reconnect the MSD power cord to the electrical outlet 8 Pump down the MSD Figure 30 Primary f...

Page 163: ...o Minimize Foreline Pump Damage from Ammonia Standard Pump 166 To Replace the Methane Isobutane Gas Purifier 167 To Clean the Reagent Gas Supply Lines 168 To Refill the CI Calibrant Vial 169 This chap...

Page 164: ...symptoms that indicate a dirty ion source Visual appearance is not an accurate guide to cleanliness of the CI ion source The CI ion source can show little or no discoloration yet still need cleaning...

Page 165: ...165 Figure 31 Exploded view of the CI ion source Entrance lens CI ion focus lens CI drawout cylinder CI drawout plate CI lens insulator 1 of 2 CI interface tip seal CI dummy filament CI filament CI he...

Page 166: ...You can continue to run samples while the pump is ballasting 3 Close the ballast valve by aligning the 0s Leaving the ballast valve open all the time will result in loss of pump oil and damage to the...

Page 167: ...the reduced metal of the oxygen and moisture traps Procedure 1 To install the methane isobutane gas purifier follow the instructions on the label for installation and replacement intervals 2 Disconnec...

Page 168: ...following the instructions on the label 3 Connect one end of the tubing to a supply of clean dry nitrogen and turn on gas flow 4 Use the heat gun to warm the tubing starting at the supply end and work...

Page 169: ...7 Fill the vial no higher than the bottom of the internal tube with fresh PFDTD calibrant 8500 8510 8 Replace the vial and tighten the collar 9 Reposition the MSD next to the GC See page 105 10 Reins...

Page 170: ...170 5975 Series MSD Troubleshooting and Maintenance Manual 5 CI Maintenance Figure 33 CI calibration valve and vial Calibration valve Calibration vial Collar...

Page 171: ...174 Foreline Pump 175 High Vacuum Pump 178 Analyzer Chamber 179 Side Plate 180 Vacuum Seals 182 Face seals 182 KF NW seals 182 Compression seals 183 High voltage feedthrough seal 183 Foreline Gauge 18...

Page 172: ...p engages to create the vacuum needed for operation The 5975 Series MSD uses one of three kinds of high vacuum pumps a diffusion pump or one of two turbomolecular turbo pumps The pump type determines...

Page 173: ...alyzer door and front and rear end plates Vacuum seals Calibration valve s and vent valve Vacuum control electronics Vacuum gauges and gauge control electronics Each of these is discussed in more deta...

Page 174: ...l the sound from the foreline pump becomes quieter Pumpdown failure shutdown The system will shut down both the high vacuum and the foreline pump if the system fails to pump down correctly Two conditi...

Page 175: ...load from the high vacuum pump The foreline pump is connected to the high vacuum pump by a 130 cm hose called the foreline hose Figure 35 The standard foreline pump Hose to vacuum pump Ballast control...

Page 176: ...tall an 11 mm id hose to remove the exhaust from your lab A window sight glass in the front of the standard foreline pump shows the level of the foreline pump oil There are two marks next to the windo...

Page 177: ...ags paper towels and similar absorbents in the oil pan could ignite and damage the pump and other parts of the MSD WARNING Combustible materials or flammable non flammable wicking material placed unde...

Page 178: ...vent vapor from migrating into the analyzer chamber Foreline pressure is monitored by the foreline gauge The AC board controls the diffusion pump heater Turbo pump system The 5975 Series MSD can have...

Page 179: ...alibration valve vent valve GC MSD interface and high vacuum pump Diffusion pump version The diffusion pump attaches with a KF50 seal to a baffle adapter that is clamped to the bottom of the manifold...

Page 180: ...feedthroughs to analyzer components The electronic side board is mounted on the atmospheric side of the side plate Thumbscrews are located at each end of the side plate CAUTION Fasten both side plate...

Page 181: ...Troubleshooting and Maintenance Manual 181 Figure 37 Side plate feedthroughs High voltage HED Detector focus Ion source and heater Mass filter quadrupole Screws for radiator mounting brackets Signal d...

Page 182: ...plate swings into place against the side plate O ring and must be held in place when the MSD is turned on for pump down to assure a good seal The front and rear end plates are screwed onto the manifol...

Page 183: ...the collar Tightening the collar presses the ferrule compressing the O ring around the part The calibration vials use compression seals High voltage feedthrough seal The high voltage HED feedthrough s...

Page 184: ...usion pump control When the foreline pump has reduced the pressure in the analyzer chamber to below 300 mTorr 0 3 Torr the diffusion pump is automatically switched on If the foreline pressure rises ab...

Page 185: ...th a KF50 fitting to a baffle adapter clamped to the bottom of the analyzer chamber The diffusion pump has a cylindrical body surrounded by fins to help dissipate heat Its inlet is open to the interio...

Page 186: ...s strikes the gas molecules that are present This forces the gas molecules down toward the outlet near the bottom of the pump Another nozzle in the stack points directly at the outlet and forces the g...

Page 187: ...the foreline pressure rises above 400 mTorr the diffusion pump heater will turn off The AC board allows the analyzer electronics to turn on when the diffusion pump is hot The diffusion pump typically...

Page 188: ...id once a year Changes at 170 C rising 140 C falling 365 C rising Function Keeps analyzer turned off until the pump is hot enough to for adequate vacuum Prevents analyzer damage Shuts off diffusion pu...

Page 189: ...ubleshooting and Maintenance Manual 189 Figure 40 The diffusion pump Inlet Cooling fins Too cold sensor Too hot sensor Diffusion pump outlet Cold fluid level marker Diffusion pump heater cable Hot flu...

Page 190: ...erating temperature will break down and turn dark brown or black This reaction is called cracking Cracked pump fluid gives two symptoms higher manifold pressure and high background with a large peak a...

Page 191: ...cules that reach the outlet A controller regulates current to the pump and monitors pump motor speed and temperature A cooling fan is located between the turbo pump and the front panel of the MSD The...

Page 192: ...correct diffusion of calibrant for each vacuum system Perfluorotributylamine PFTBA is the most commonly used tuning compound for EI operation PFTBA is required for automatic tuning of the MSD Other co...

Page 193: ...bleshooting and Maintenance Manual 193 Figure 41 Calibration valves EI calibration valve EI calibration vial Vent valve knob CI calibration valve CI calibration vial EI CALIBRATION above analyzer wind...

Page 194: ...194 5975 Series MSD Troubleshooting and Maintenance Manual 6 Vacuum System Figure 42 Vent valve Vent valve knob O ring Air passage Valve closed Valve open Valve open too far...

Page 195: ...r pressure in daily operation and in troubleshooting The gauge is calibrated for nitrogen N2 The carrier gas is usually helium which has does not ionize as readily as nitrogen Therefore the indicated...

Page 196: ...196 5975 Series MSD Troubleshooting and Maintenance Manual 6 Vacuum System...

Page 197: ...nt care 205 Other Source Elements 206 Magnet 206 Repeller 206 Drawout plate and cylinder 206 Ion focus 206 Entrance lens 207 Quadrupole Mass Filter 208 AMU gain 209 AMU offset 209 219 width 209 DC pol...

Page 198: ...er allows selected ions to pass through the filter and strike the detector The detector generates a signal current proportional to the number of ions striking it The analyzer is attached to the vacuum...

Page 199: ...SD Troubleshooting and Maintenance Manual 199 Figure 43 The analyzer Detector Mass filter contact cable Mass filter heater assembly Feedthrough board Mass filter contact Ion source inside radiator Mas...

Page 200: ...voltage on the repeller pushes the positive ions into the lens stack where they pass through several electrostatic lenses These lenses concentrate the ions into a tight beam which is directed into th...

Page 201: ...aintenance Manual 201 The CI ion source is similar in design but critical dimensions are different Do not interchange parts Figure 44 Ion source structure Entrance lens Filament Drawout cylinder Drawo...

Page 202: ...nnections for the other wires The holes in the ion source electron entrance and ion exit are very small 0 5 mm making it possible to pressurize the ionization chamber Both the source body and the plat...

Page 203: ...al 203 Figure 46 CI ion source exploded view CI dummy filament CI ion focus lens CI drawout plate Entrance lens CI interface tip seal CI filament CI repeller insulator CI repeller Setscrew CI drawout...

Page 204: ...t the filaments filament selection Filament filament emission Emission current and electron energy EIEnrgy Filament selection The filament selection parameter Filament selects which filament in the io...

Page 205: ...ter any maintenance was performed If you are controlling your MSD from the Edit Parameters screen always select MSOff before changing any of the filament parameters When setting up data acquisition pa...

Page 206: ...epeller voltage too low results in poor sensitivity and poor high mass response Setting repeller voltage too high results in precursors poor mass filtering and poor low mass resolution Drawout plate a...

Page 207: ...ain and the 4 4 volt permanent offset Entrance lens voltage 4 4 VDC offset gain mass Entrance lens offset The entrance lens offset EntOff controls the fixed voltage applied to the entrance lens It can...

Page 208: ...re connected adjacent segments are electrically isolated One pair has positive voltages applied the other negative A combined direct current DC and radio frequency RF signal is applied to the two pair...

Page 209: ...to RF frequency on the mass filter Higher offset yields narrower peaks AMU offset generally affects peak widths equally at all masses 219 width m z 219 is a prominent ion near the middle of the mass...

Page 210: ...offset MassOffs also controls the mass assignment A higher offset yields higher mass assignment Mass offset generally affects peaks equally at all masses Quadrupole maintenance The mass filter require...

Page 211: ...ted off axis from the center of the quadrupole mass filter to minimize signals due to photons hot neutrals and electrons coming from the ion source When the ion beam hits the HED electrons are emitted...

Page 212: ...ause it may need to be replaced Check your tune charts for gradual degradation which indicates wearing out Select View Tunes from the Checkout menu in the Instrument Control view to see the tune chart...

Page 213: ...d from the MSD ChemStation In selecting the temperatures to use consider the following Higher temperatures help keep the analyzer clean longer Higher ion source temperatures result in more fragmentati...

Page 214: ...214 5975 Series MSD Troubleshooting and Maintenance Manual 7 Analyzer Figure 49 Heaters and radiators Mass filter radiator Mass filter heater assembly Ion source radiator Ion source heater assembly...

Page 215: ...s 228 The following assemblies make up the MSD electronics Except for the Back panel and connectors Status display and power switch and Interfacing to other devices sections most of this material is n...

Page 216: ...oubleshooting and Maintenance Manual 8 Electronics Figure 50 The electronics module LAN MS Log amplifier Main board Cooling fan Low voltage HED power supply Toroid transformer AC board power supply co...

Page 217: ...de Prepare to vent cool analyzer and turn off high vacuum pump Monitor MSD status Run autotune Run method Run sequence View and set analyzer temperatures See also The G1701EA GC MSD ChemStation Gettin...

Page 218: ...ge is proportional to the mass selected Generates the DC component of the voltage applied to the quadrupole mass filter The magnitude of this voltage is proportional to the RF voltage Passes voltages...

Page 219: ...rol card Sends digital information to the LAN MS control card Generates voltages for the ion source lenses Generates control signals for filament selection filament emission current and electron energ...

Page 220: ...d The AC board is also sometimes called the power distribution vacuum control board It performs these functions Provides input voltage transparency for the MSD Distributes AC line power to the AC DC p...

Page 221: ...to the diffusion pump See Figure 51 Turbo pump control Your MSD is equipped with a turbo pump with an integrated controller The AC board sends control signals to and receives turbo pump status inform...

Page 222: ...ssure is above 300 mTorr after 7 minutes This is usually because of a large air leak either the sideplate has not sealed correctly or the vent valve is still open This feature helps prevent the foreli...

Page 223: ...the LAN MS control card include Instrument controller Data processor Main processor Serial communication processor Network communication controller Remote start processor Random access memory RAM Sta...

Page 224: ...the detector for the EI MSD The EI PCI NCI MSD G3174A requires a bipolar power supply that can also provide 10 000 volts for NCI operation The HED power supply also provides 600 VDC for the detector...

Page 225: ...r connector carries power for the diffusion pump heater or the turbo controller from the AC board Primary fuses The primary fuses limit current into the MSD in case of a short circuit in the foreline...

Page 226: ...n vacuum gauge depending on the accessories installed on the MSD It handles data communication between the GC and the MSD LAN I O connector The LAN cable from the data system is connected to the I O L...

Page 227: ...ries MSD Troubleshooting and Maintenance Manual 227 Figure 52 Back panel connections Remote start Primary fuses Power cord LAN High vacuum control High vacuum power Foreline pump RS 232 Serial B power...

Page 228: ...s the GC and the MSD Remote start signals It is often necessary to communicate with external devices for example a purge and trap during a run Typically these communications are requests to send a sys...

Page 229: ...be detected between the ready and ground pins on the remote start connector on the MSD Start run input The best way to generate a start run signal is to use the remote start connector on the GC Since...

Page 230: ...230 5975 Series MSD Troubleshooting and Maintenance Manual 8 Electronics...

Page 231: ...ts 245 Turbo pump and related parts 247 Analyzer 250 EI source 255 Repeller assembly 257 Heater sensor assembly 257 EI GC MSD Interface 259 Consumables and Maintenance Supplies 260 CI Parts 265 This c...

Page 232: ...ifications as new parts Rebuilt assemblies can be identified by their part numbers The first two digits of the second part of the part number are 69 or 89 such as xxxxx 69xxx or xxxxx 89xxx Rebuilt as...

Page 233: ...Stop cable Only one cable can be used at a time G1530 60930 Y Remote Start Stop Cable G1530 61200 H Remote Start Stop Cable 35900 60800 LAN Cable shielded 8121 0008 Power cord Australia New Zealand 81...

Page 234: ...w voltage power supply output cable LVPS to main board G1099 60427 Mass filter contact cable kit G3170 60130 Side board control ribbon cable main board to side board G1099 60410 Signal cable signal fe...

Page 235: ...ivets 4 may be required if old ones are broken by the removal process 0361 1341 HED power supply G3170 80017 Bipolar HED power supply G3170 80018 LAN MS Control Card SC3 05990 65430 Low voltage AC DC...

Page 236: ...oubleshooting and Maintenance Manual 9 Parts Figure 54 Electronics module Main board Signal amplifier board LAN MS control card AC board HED power supply Cooling fan Cooling fan Low voltage power supp...

Page 237: ...ies MSD Troubleshooting and Maintenance Manual 237 Fuses and power switch Table 14 Fuses and power switches Description Part number Fuse 8A 250V 2110 0969 Power button 5041 1203 Power switch extender...

Page 238: ...scia for 5975C VL MSD G3170 60081 for 5975C inert MSD G3170 60082 for 5975C inert XL MSD G3170 60083 for 5975C inert XL EI CI MSD G3170 60084 for 5975 series MSD clear G3120 60038 for 7820A MSD black...

Page 239: ...Parts 9 5975 Series MSD Troubleshooting and Maintenance Manual 239 Figure 55 LCP replacement parts LCP fascia LCP assembly and fascia...

Page 240: ...le 16 O rings and seals Description Part number Calibration valve O ring 1 4 inch 5180 4182 End plate O ring for front and rear end plates 0905 1441 GC MSD interface O ring 0905 1405 HED feedthrough G...

Page 241: ...10 16 Clamp foreline inlet Micro Ion vacuum gauge 0100 1397 Foreline Hose packaging cap flange G3170 40132 KF16 Hose adapter G1099 20531 KF25 Clamp tp end of hose not shown 0100 0549 KF25 Hose adapter...

Page 242: ...al 9 Parts 6 M6 Acorn Cap Hex nut Qty 2 0535 0041 7 M4 Internal Star washer Qty 2 2190 0009 Hose clamps are interchangeable but give an optimum fit if they are matched Table 17 Standard foreline pump...

Page 243: ...Parts 9 5975 Series MSD Troubleshooting and Maintenance Manual 243 Figure 56 Foreline pump and related parts 1 Safety cage removed for clarity 4 3 2 6 5 7 3...

Page 244: ...s are interchangeable but give an optimum fit if they are matched 1400 3241 Dry foreline pump G3170 80028 Dry foreline pump exchange G3170 89028 Foreline pump inlet seal KF10 16 0905 1463 KF10 16 Clam...

Page 245: ...hose assembly Dry pump Hose clamp Table 19 Diffusion pump MSD vacuum system components Figure 58 Item Description Part number Claw clamps for baffle adapter G3170 60590 1 Diffusion pump 120V G1099 80...

Page 246: ...oreline gauge seal 0905 1463 KF10 16 clamp diffusion pump outlet 0100 1397 KF10 16 seal diffusion pump outlet 0905 1463 KF50 clamp 0100 1395 KF50 seal foreline pump to baffle adapter 0100 1884 Side pl...

Page 247: ...8 Diffusion pump and related parts 1 2 3 Table 20 Turbo pump MSD vacuum system components Figure 59 Item Description Part number Claw clamps for baffle adapter standard turbo G3170 60590 Clamp for vac...

Page 248: ...rmance turbomolecular pump G3170 89062 2 Standard turbomolecular pump G3170 89061 Turbo pump seal with shield 0905 1613 3 Turbo power supply only G3170 60600 Turbo separate power supply control wiring...

Page 249: ...Parts 9 5975 Series MSD Troubleshooting and Maintenance Manual 249 Figure 59 Turbo pump and related parts 1 2 3 4 5...

Page 250: ...o Ion Vacuum Gauge Baffle G3170 00015 M3X12 TX T10 PN SQ Cone SS qty 2 0515 0664 2 EI Calibration valve assembly Turbo pump MSDs Diffusion pump MSDs G3170 60204 G3170 60201 3 Calibration vial G3170 80...

Page 251: ...follow Figure 60 Analyzer chamber and related parts 1 2 3 4 5 6 Table 22 Analyzer parts Figure 61 Item Description Part number Analyzer new Turbo Diffusion G3170 65775 G3170 65785 Analyzer rebuilt In...

Page 252: ...port detector end G3170 20025 Mass filter canted coil spring G1460 2724 Mass filter ceramic support source end G1099 20123 3 Mass filter heater assembly G1099 60172 Mass filter radiator G3170 20121 Mo...

Page 253: ...Parts 9 5975 Series MSD Troubleshooting and Maintenance Manual 253 Figure 61 Analyzer parts 7 under clips 3 4 5 6...

Page 254: ...source thumbscrew G1099 20138 Magnet mounting screws 0515 1046 Screw magnet bracket to source radiator 0515 1602 Screws source radiator and detector to quad radiator G3170 20123 Screws mass filter con...

Page 255: ...05971 20134 12 Drawout plate 6 mm Inert Used in G2860A and G2860B extended linearity kits G2589 20045 12 Drawout plate 6 mm Stainless Steel RTGA G3163 20530 9 Entrance lens G3170 20126 3 EI filament G...

Page 256: ...256 5975 Series MSD Troubleshooting and Maintenance Manual 9 Parts Figure 62 EI source 1 9 10 12 11 4 8 5 3 3 7 7 2...

Page 257: ...ainless Steel G1099 20132 Setscrew 0515 1446 Anodized Source Heater Assembly G3169 60177 Washer for repeller 3050 0891 Table 26 Heater sensor block assembly Description Part number EI 350 Anodized Sou...

Page 258: ...258 5975 Series MSD Troubleshooting and Maintenance Manual 9 Parts Heater Repeller Japan G3170 60103 High Temp Source Sensor G3170 60104 Table 26 Heater sensor block assembly Description Part number...

Page 259: ...rface column nut 05980 20066 Heater sleeve G1099 20210 Heater Sensor assembly G1099 60107 Insulation G1099 20301 Setscrew for heater sensor assembly 0515 0236 Screws M4x0 7 panhead for heater sleeve 0...

Page 260: ...MSD Table 28 EI maintenance supplies Description Part number Abrasive paper 30 m 5061 5896 Alumina powder 1 kg 8660 0791 Cloths clean qty 300 05980 60051 Cloths cleaning qty 300 9310 4828 Cotton swabs...

Page 261: ...se 8710 1094 Screwdrivers Flat blade large 8730 0002 Screwdrivers Torx T 10 8710 1623 Screwdrivers Torx T 15 8710 1622 Screwdrivers Torx T 20 8710 1615 MSD Shipping kits G3170 60501 6850A GC Shipping...

Page 262: ...mm id 85 15 for 0 20 and 0 25 mm id columns 5062 3508 0 5 mm id 85 15 for 0 32 mm id columns 5062 3506 0 8 mm id 85 15 for 0 53 mm id columns 5062 3538 For the GC inlet 0 27 mm id 90 10 for 0 10 mm id...

Page 263: ...afluoronaphthalene OFN 1pg L 5188 5348 Octafluoronaphthalene OFN 100 fg L 5188 5347 PFHT 100 pg L 5188 5357 PFTBA 10 gram 8500 0656 PFTBA sample kit 05971 60571 PFDTD calibrant 8500 8510 Foreline pump...

Page 264: ...ries MSD Troubleshooting and Maintenance Manual 9 Parts Tubing cutter replacement blades 8710 1710 CI shipping kit G3170 60505 Table 31 Miscellaneous EI and CI parts and samples continued Description...

Page 265: ...FDTD calibrant 8500 8510 2 Calibration sample vial G3170 80002 Sample vial O ring 1 4 inch Viton 5180 4182 Solenoid valve and cable G1999 60452 CI cable from SC to CI Flow Module G3170 60808 Cable CI...

Page 266: ...nual 9 Parts Swagelok nut for 1 8 inch fitting 20 package 5080 8751 Swagelok nut and ferrules 20 sets package 5080 8751 Not set up Figure 63 CI flow control module Table 32 CI flow control module Figu...

Page 267: ...3170 20133 5 CI interface tip seal G1999 60412 6 CI ion focus lens G1999 20443 7 CI lens insulators pair G1999 20445 8 CI repeller G1999 20432 9 CI repeller insulator G1999 20433 10 CI source body G19...

Page 268: ...268 5975 Series MSD Troubleshooting and Maintenance Manual 9 Parts Figure 64 Exploded view of the CI ion source 1 2 7 7 3 4 5 6 8 9 10 11 12 13 14 14 15...

Page 269: ...ber CI GC MSD interface Assembly G3170 65400 Heater clamp G1999 20410 Heater Sensor assembly G1099 60107 Transfer line cup cover G3170 00405 Interface insulation G1999 20401 Screws for heater clamp 05...

Page 270: ...270 5975 Series MSD Troubleshooting and Maintenance Manual 9 Parts...

Page 271: ...t visible 73 Calibrant vial CI refilling 169 Calibrant vial CI refilling Calibration valve O ring 182 Calibration valve CI 192 Calibration valve EI reinstalling 113 Calibration vial EI refilling and r...

Page 272: ...e is not enough signal to begin tune 52 translating error numbers into messages 47 ESD See Electrostatic discharge Excessive noise or low signal to noise ratio in CI MSD 74 Exhaust oil trap for foreli...

Page 273: ...abundance of 40 Maintenance 83 to 162 analyzer 131 avoiding dangerous voltages during 85 calibration vial removing 109 CI calibrant vial refilling 169 CI gas purifier replacing 167 CI interface tip s...

Page 274: ...8 28 32 and 44 or at m z 14 and 16 39 flat tops 34 fronting 34 inconsistent widths 39 missing 33 49 precursors 39 split tops 35 tailing 34 PFDTD not visible but reagent ions are present 73 PFDTD perfl...

Page 275: ...r ADC error 49 mass filter quad heater will not heat up 45 mass spectral symptoms 38 to 41 MSD does not turn on 31 MSD is on but foreline pump is not running 32 no or low PFDTD signal but reagent ions...

Page 276: ...nd Maintenance Manual Index Vacuum seals 182 Vacuum system 171 part numbers 240 turbo pump system overview 178 Valve CI calibration 192 Voltages dangerous 85 W Water detecting in CI 75 Wid219 paramete...

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