Page 1 Agilent 5975T  LTM GC/MSD Troubleshooting and Maintenance Guide Agilent Technologies...
Page 2 Notices © Agilent Technologies, Inc. 2010 Warranty Safety Notices No part of this manual may be reproduced The material contained in this docu- in any form or by any means (including C A U T I O N ment is provided “as is,” and is sub-...
Page 3: Table Of Contents
Contents Introduction Overview Hardware Description Electron Ionization (EI) systems Abbreviations Used Important Safety Warnings Hydrogen Safety Safety and Regulatory Certifications Cleaning/Recycling the Product Liquid Spillage Moving or Storing the GC/MSD Concepts and General Tasks Troubleshooting Tips and Tricks Rule 1: “Look for what has been changed.” Rule 2: “If complex isn't working, go back to simple.”...
Page 4 Contamination or Carryover Isolate the source Check possible causes—all inlet and detector combinations Larger Peaks Than Expected Peaks Not Displayed/No Peaks No peaks Low Boiler Peaks Present/High Boiler Peaks are Missing Baseline Rise During LTM Column Temperature Program Baseline is rising Baseline is high Baseline is falling Baseline wanders...
Page 5 Relative abundance of m/z 502 is less than 3% Spectra look different from those acquired with other MSDs High mass sensitivity is poor Pressure Symptoms Foreline pressure is too high Analyzer chamber pressure is too high (EI operation) Foreline pressure is too low Analyzer chamber pressure is too low Gauge controller displays 9.9+9 and then goes blank Power indicator on the gauge controller does not light...
Page 6 Temperature Never Becomes Ready Cannot Set a Flow or Pressure A Gas Does Not Reach Setpoint Pressure or Flow A Gas Exceeds Pressure Setpoint or Flow The Inlet Pressure or Flow Fluctuates Cannot Maintain a Pressure as Low as the Setpoint on a Split Inlet The Measured Column Flow Does Not Equal the Displayed Flow ALS Symptoms Plunger Errors...
Page 7 To Attach a Capillary Column Using SilTite Metal Fittings To Disconnect Fused Silica Tubing From a SilTite Fitting Maintaining the Vacuum System To Check and Add Foreline Pump Oil To Drain the Foreline Pump To Refill the Foreline Pump To Maintain the Dry Vacuum Pump To Refill the EI Calibration Vial To Purge the Calibration Valves To Remove the EI Calibration and Vent Valve Assembly...
Page 8 Maintaining the Split/Splitless Inlet Consumables and Parts for the Split/Splitless Inlet Exploded Parts View of the Split/Splitless Inlet To Clean the Septum Seat in the Insert Assembly of the Split/Splitless Inlet To Replace the Gold Seal on the Split/Splitless Inlet To Replace the Filter in the Split Vent Line for the Split/Splitless Inlet To Clean the Split/Splitless Inlet...
Page 9 MSD Side Board Electronics Module LAN/MS Control Card MSD Power Supplies Side Panel Connectors Interfacing to External Devices Parts To Order Parts Electronics Covers Local Control Panel Vacuum System Analyzer EI GC/MSD Interface LTM System Automatic Liquid Sampler Reusable Shipping Containers Consumables and Maintenance Supplies Troubleshooting and Maintenance Guide...
Page 10 Troubleshooting and Maintenance Guide...
Page 11 Moving or Storing the GC/MSD This manual describes the troubleshooting and maintenance of the Agilent Technologies 5975T LTM GC/MSD. It assumes familiarity with the procedures and information detailed in the 5975T LTM GC/MSD Operation Manual and with the Agilent MSD ChemStation software. Agilent Technologies...
Page 12: Introduction
These parameters are normally controlled using the Agilent ChemStation. Vacuum gauge The 5975T LTM GC/MSD may be equipped with an optional external vacuum gauge. Installation of the gauge controller is described in this manual. Operation of the vacuum gauge is described in the 5975T LTM GC/MSD Operation Manual.
Page 13 Introduction Table 1 5975T LTM GC/MSD model and features Model G3880A Feature High vacuum pump Standard turbo Optimal He column flow mL/min Maximum recommended gas flow mL/min † Maximum gas flow, mL/min Max column id 0.32 mm (30 m) * Total gas flow into the MSD: column flow.
Page 14: Hardware Description
Introduction Hardware Description Figure 1 is an overview of a typical 5975T LTM GC/MSD system. Local control panel LTM door MSD door Power switch Figure 1 5975T LTM GC/MSD system Electron Ionization (EI) systems EI systems ionize sample molecules by bombarding them with electrons.
Page 15: Abbreviations Used
Introduction Abbreviations Used The abbreviations in Table 2 are used in discussing this product. They are collected here for convenience. Table 2 Abbreviations Abbreviatio Definition Alternating current Automatic liquid sampler Bromofluorobenzene (calibrant) Capillary flow technology Direct current DFTPP Decafluorotriphenylphosphine (calibrant) Direct insertion probe Electron impact ionization Electron multiplier (detector)
Page 16 Introduction Table 2 Abbreviations (continued) Abbreviatio Definition RFPA Radio frequency power amplifier Torr Unit of pressure, 1 mm Hg Turbo Turbomolecular (pump) Troubleshooting and Maintenance Guide...
Page 17: Important Safety Warnings
Introduction Important Safety Warnings There are several important safety notices to always keep in mind when using the GC/MSD. Many internal parts of the GC/MSD carry dangerous voltages If the GC/MSD is connected to a power source, even if the power switch is off, potentially dangerous voltages exist on: •...
Page 18 Introduction • The guard column heated zone and its contents • The guard column nuts attaching the guard columns to the inlet, LTM column, and MSD. • The foreline pump Always cool these areas of the system to room temperature before working on them.
Page 19: Hydrogen Safety
Introduction Hydrogen Safety The use of hydrogen as a carrier gas is potentially dangerous. WA R N I N G When using hydrogen (H ) as the carrier gas or fuel gas, be aware WA R N I N G that hydrogen gas can flow into the guard column heated zone and create an explosion hazard.
Page 20 Introduction Dangers unique to GC/MSD operation Hydrogen presents a number of dangers. Some are general, others are unique to GC or GC/MSD operation. Dangers include, but are not limited to: • Combustion of leaking hydrogen. • Combustion due to rapid expansion of hydrogen from a high-pressure cylinder.
Page 21 Introduction Table 3 Hydrogen accumulation mechanisms (continued) Mechanism Results Mass spectrometer manual Some mass spectrometers are equipped with shutoff valves closed manual foreline pump shutoff valves. In these instruments, the operator can close the shutoff valves. Closing the shutoff valves does not shut off the flow of carrier gas.
Page 22 Introduction • Eliminate from your 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 (danger of self-ignition). •...
Page 23: Safety And Regulatory Certifications
• AUS/NZ This ISM device complies with Canadian ICES-001. Cet appareil ISM est conforme a la norme NMB—001 du Canada. The 5975T LTM GC/MSD is designed and manufactured under a quality system registered to ISO 9001. Information The Agilent Technologies 5975T LTM GC/MSD meets the...
Page 24 Failure to comply with these precautions violates safety standards of design 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.
Page 25 Make sure that all peripheral devices are also certified. Make sure that appropriate cables are used to connect the device to peripheral equipment. Consult your equipment dealer, Agilent Technologies, or an experienced technician for assistance. Changes or modifications not expressly approved by Agilent Technologies could void the user’s authority to operate the...
Page 26: Cleaning/Recycling The Product
Introduction Cleaning/Recycling the Product To clean the unit, disconnect the power and wipe down with a damp, lint-free cloth. For recycling, contact your local Agilent sales office. Liquid Spillage Do not spill liquids on the instrument. Moving or Storing the GC/MSD The best way to keep your GC/MSD functioning properly is to keep it pumped down and hot, with carrier gas flow.
Page 27: Concepts And General Tasks
Agilent 5975T LTM GC/MSD Troubleshooting and Maintenance Guide Concepts and General Tasks Troubleshooting Tips and Tricks Concepts Configurable Items to Always Keep Current Information to Obtain Before Calling Agilent for Service This chapter tells you how to identify the symptoms and causes of problems in your GC/MSD.
Page 28: Troubleshooting Tips And Tricks
Concepts and General Tasks Troubleshooting Tips and Tricks Rule 1: “Look for what has been changed.” Many problems are introduced accidentally by human actions. Every time any system is disturbed, there is a chance of introducing a new problem. • If the MSD was just pumped down after maintenance, suspect air leaks or incorrect assembly.
Page 29: Concepts
Concepts and General Tasks Concepts This manual provides lists of symptoms and corresponding tasks to perform should you experience errors associated with hardware or chromatographic output, Not Ready messages, and other common issues. Each section describes a problem and provides a bulleted list of possible causes for you to troubleshoot.
Page 30: Configurable Items To Always Keep Current
Concepts and General Tasks Configurable Items to Always Keep Current Certain configurable items in the GC must always be kept current. Failure to do so will lead to reduced sensitivity, chromatographic errors, and possible safety concerns. Column configuration Reconfigure the instrument every time a LTM column is trimmed or changed.
Page 31: Information To Obtain Before Calling Agilent For Service
Concepts and General Tasks Information to Obtain Before Calling Agilent for Service Gather the following information before contacting Agilent for service: • Symptoms • Problem description • Hardware installed and parameters/configuration when the error occurred (sample, supply gas type, gas flow rates, detectors/inlets installed, and so forth) •...
Page 32 Concepts and General Tasks Troubleshooting and Maintenance Guide...
Page 33: 3 Chromatographic Symptoms
Agilent 5975T LTM GC/MSD Troubleshooting and Maintenance Guide Chromatographic Symptoms Chromatographic Symptoms Retention Times Not Repeatable Peak Areas Not Repeatable Contamination or Carryover Larger Peaks Than Expected Peaks Not Displayed/No Peaks Low Boiler Peaks Present/High Boiler Peaks are Missing Baseline Rise During LTM Column Temperature Program...
Page 34: Chromatographic Symptoms
Chromatographic Symptoms Chromatographic Symptoms These are symptoms you may observe in the chromatograms generated by data acquisition. In general, these symptoms do not prevent you from operating your GC/MSD system. They indicate, however, that the data you are acquiring may not be the best data obtainable.
Page 35: Retention Times Not Repeatable
Chromatographic Symptoms Retention Times Not Repeatable • Replace the septum. (See the 5975T LTM GC/MSD Operation Manual.) • Check for leaks in the inlet, liner (as applicable), and column connection. (See “Checking for Leaks” on page 99.) • Check for sufficient carrier gas supply pressure. The...
Page 36: Peak Areas Not Repeatable
Chromatographic Symptoms Peak Areas Not Repeatable Check the ALS syringe operation. (See the Troubleshooting section of the 7683 Automatic Liquid Sampler Installation, Operation and Maintenance manual.) • Replace the syringe. • Check for leaks in the inlet, liner (as applicable), and column connection.
Page 37: Contamination Or Carryover
Chromatographic Symptoms Contamination or Carryover If your output has contamination or unexpected peaks, do the following: Isolate the source Perform a solvent blank run using a new, pure source of solvent. If the contamination disappears, the problem may be either in the sample or solvent-related. Perform a blank run (remove the syringe from the injector and start a run).
Page 38: Larger Peaks Than Expected
Chromatographic Symptoms Larger Peaks Than Expected • Check each configured column’s dimensions against the actual column dimensions. (See “Configurable Items to Always Keep Current” on page 30.) • Check the autosampler injection volume. • Check the vial caps. • Check configured syringe size. Some syringe sizes are specified at half-capacity.
Page 39: Peaks Not Displayed/No Peaks
Chromatographic Symptoms Peaks Not Displayed/No Peaks • If using an autosampler: • Ensure that there is sample in the vial. • Verify that the ALS plunger carriage is secured to the syringe plunger. • Check that the syringe is installed correctly and draws sample.
Page 40 Chromatographic Symptoms • Excessive foreline or analyzer chamber pressure • Very dirty ion source • Calibration valve is not working correctly • Bad signal cable connection • Filament has failed or is not connected correctly • Bad ion source wiring connection •...
Page 41: Low Boiler Peaks Present/High Boiler Peaks Are Missing
Chromatographic Symptoms Low Boiler Peaks Present/High Boiler Peaks are Missing • Cold spot at the point where the LTM transfer line touches the LTM column toroid. Troubleshooting and Maintenance Guide...
Page 42: Baseline Rise During Ltm Column Temperature Program
Chromatographic Symptoms Baseline Rise During LTM Column Temperature Program • Inspect the column for bleed. • Check for leaks/oxygen in carrier gas supply. • Check gas supply oxygen trap indicator or date. • Make solvent blank runs to evaluate baseline without sample.
Page 43: Baseline Wanders
Chromatographic Symptoms • Splitless injection time too long (inlet is not properly swept, resulting in excess solvent on the column and slow solvent decay) Baseline wanders • Insufficient carrier gas supply pressure* • Malfunctioning flow or pressure regulator* • Intermittent leak in the GC inlet* * These could cause a fault condition in the GC that would prevent the GC from operating.
Page 44: Poor Peak Resolution
Chromatographic Symptoms Poor Peak Resolution • Set column flow to optimum linear velocity. • Install and use deactivated consumable parts in the inlet (for example, a liner). • Perform column maintenance: Bake out contaminants, replace the inlet guard column, and reverse and bake out the column as needed.
Page 45: Peak Tailing
Chromatographic Symptoms Peak Tailing The figure below shows an example of tailing peaks. When troubleshooting tailing peaks, consider: • Which peaks are tailing? • Are the tailing peaks active compounds, all compounds, or are there trends (such as early eluters or late eluters)? •...
Page 46: Peak Boiling Point Or Molecular Weight Discrimination Poor
Chromatographic Symptoms Peak Boiling Point or Molecular Weight Discrimination Poor If you have trouble with peak boiling point or molecular weight discrimination (inlet discrimination), do the following: • Check the inlet for contamination. Clean and change the liner if necessary. Replace all inlet consumable parts. •...
Page 47: Sample Decomposition In Inlet/Missing Peaks
Chromatographic Symptoms Sample Decomposition in Inlet/Missing Peaks • Lower the inlet temperature. • Check for air or water in the carrier gas; verify gas purity and functionality of traps. • Verify that the liner is appropriate for the sample being run. •...
Page 48: Peak Fronting
Chromatographic Symptoms Peak Fronting The figure below shows examples of the three types of peaks: symmetric, fronting, and overloaded. Symmetrical Fronting Overloaded If peak fronting or overloading occurs, try the following: • Verify that the injection volume is appropriate. • Ensure that the column is installed properly. •...
Page 49: Peaks Have Split Tops
Chromatographic Symptoms Peaks have split tops • Bad injection technique • Injection is too large Troubleshooting and Maintenance Guide...
Page 50: Noisy Signal, Including Wander, Drift, And Baseline Spikes
If noise appears suddenly on a previously clean baseline, do the following: • Consider recent changes made to the system. • Bakeout the inlet. See the 5975T LTM GC/MSD Operation Manual for this procedure. • Verify the purity of carrier gases.
Page 51: Baseline Wander And Drift
Chromatographic Symptoms If noise increases gradually to an unacceptable level, check the following possible causes: • Inspect the ion source for contamination. • Inspect the column and inlet for contamination. Other factors that can contribute to noise: • Column installed too high into detector. •...
Page 52: Retention Times For All Peaks Drift - Shorter
Chromatographic Symptoms • Building heating/cooling system • Other electronic interferences in the lab Figure 3 Random spiking Spikes are isolated baseline disturbances, usually appearing as sudden (and large) upscale movements. If accompanied by noise, resolve the noise problem first since spiking may disappear at the same time.
Page 53: Poor Sensitivity
Chromatographic Symptoms Poor sensitivity • Incorrect tuning • Tune file that does not match the type of analysis • Repeller voltage is too low • Incorrect temperatures (column, GC/MSD interface, ion source, or mass filter) • Incorrect sample concentration • Leaking GC inlet* •...
Page 54: Low Peak Area Or Height (Low Sensitivity)
Chromatographic Symptoms Low Peak Area or Height (Low Sensitivity) • If using an inlet in split mode, check the split ratio. • Check for leaks. (See “Checking for Leaks” on page 99.) • Check the inlet for contamination. (See “Contamination or Carryover”...
Page 55: Mass Spectral Symptoms
Some of these symptoms have causes that can be corrected by the operator. Others, however, require service by an Agilent Technologies service representative. Two symptoms listed under Chromatographic symptoms: If sensitivity is poor and If repeatability is poor, also apply to mass spectra.
Page 56: Mass Assignments Are Incorrect
Chromatographic Symptoms Mass assignments are incorrect Small shape changes at the top of the mass peaks can cause 0.1 m/z shifts in mass assignments. Shifts greater than 0.2 m/z indicate a possible malfunction. • MSD has not had enough time to reach thermal equilibrium •...
Page 57: Spectra Look Different From Those Acquired With Other Msds
Chromatographic Symptoms relative abundance of m/z 502 for a fixed set of operating parameters, there may be a problem. The charts in the MSD ChemStation software are useful for identifying changes. Select View Tunes from the Checkout menu in the Instrument Control view. Low relative abundance of m/z 502 should not be confused with low absolute abundances at high masses.
Page 58 Chromatographic Symptoms • Repeller voltage is too low • Not enough time for the MSD to warm up and pump down • Analyzer chamber pressure is too high • Column (carrier gas) flow is too high • Poor filament operation •...
Page 59: Pressure Symptoms
Chromatographic Symptoms Pressure Symptoms This section describes unusual pressure readings and their possible causes. The symptoms in this section are based on typical pressures. At typical column flow rates (0.1 to 2.0 mL/minute), the foreline pressure will be approximately 20 to 100 m Torr.
Page 60: Foreline Pressure Is Too Low
Chromatographic Symptoms Foreline pressure is too low If the pressures you observe are below 20 m Torr, check for the following: • Column (carrier gas) flow is too low • Column plugged or crushed by an overtightened nut • Empty or insufficient carrier gas supply* •...
Page 61: Temperature Symptoms
Chromatographic Symptoms Temperature Symptoms The instrument has the following heated zones: • Ion source (Source in the MSD ChemStation software) • Mass filter (Quad in the MSD ChemStation software) • GC/MSD interface Thermal Aux #2 in the MSD ChemStation software •...
Page 62: Gc/Msd Interface Will Not Heat Up
Chromatographic Symptoms • Source power cable is not connected to the sideboard* • MSD electronics are not working correctly * These will cause an error message. GC/MSD interface will not heat up • Incorrect setpoint(s) • Setpoint entered in wrong heated zone •...
Page 63: Heated Guard Column Enclosure Will Not Heat Up
Chromatographic Symptoms • LTM heater or heaters failed (burned out) • LTM sensor failed • Electronics are not working correctly Heated guard column enclosure will not heat up • Incorrect setpoint • Setpoint entered in wrong heated zone • Enclosure has not had enough time to reach temperature setpoint •...
Page 64: Analyzer Error Messages
Chromatographic Symptoms Analyzer Error Messages Sometimes, a problem in your MSD will cause an error message to appear in the MSD ChemStation software. Some error messages appear only during tuning. Other messages may appear during tuning or data acquisition. Some error messages are “latched.” These messages remain active in your data system even if the condition that caused the message has corrected itself.
Page 65: Difficulty With The Hed Supply
Chromatographic Symptoms Difficulty with the HED supply The only time this error occurs is if the output of the supply cannot get to its destination (the HED). • Large peak, such as the solvent peak, eluted while the analyzer was on •...
Page 66: Lens Supply Fault
Chromatographic Symptoms Lens supply fault • Electrical short in the analyzer • MSD electronics are not working correctly Log amplifier ADC error • MSD electronics are not working correctly No peaks found • Emission current was set to 0 • Electron multiplier voltage is too low •...
Page 67: The High Vacuum Pump Is Not Ready
Chromatographic Symptoms • Source temperature sensor is shorted • Mass filter (quad) temperature sensor is open • Mass filter (quad) temperature sensor is shorted • No heater voltage (heater fuse has probably failed) • Heater voltage is too low • Temperature zone has timed out (heater failed, bad heater wiring, or loose temperature sensor) •...
Page 68: There Is No Emission Current
Chromatographic Symptoms • Fan fault has turned off the high vacuum pump (power cycle the MSD to clear the fault) • Fuse for the high vacuum pump has failed • MSD electronics are not working correctly There is no emission current •...
Page 69: Air Leaks
Chromatographic Symptoms Air Leaks Air leaks are a problem for any instrument that requires a vacuum to operate. Leaks are generally caused by vacuum seals that are damaged or not fastened correctly. Symptoms of leaks include: • Higher than normal analyzer chamber pressure or foreline pressure •...
Page 70: Contamination
Chromatographic Symptoms Contamination Contamination is usually identified by excessive background in the mass spectra. It can come from the GC or from the MSD. The source of the contamination can sometimes be determined by identifying the contaminants. Some contaminants are much more likely to originate in the GC.
Page 71 Chromatographic Symptoms Table 4 Common contaminants (continued) Ions (m/z) Compound Possible source 91, 92 Toluene or xylene Cleaning solvent 105, 106 Xylene Cleaning solvent 151, 153 Trichloroethane Cleaning solvent Foreline pump oil or PFTBA Foreline pump oil vapor or calibration valve leak 73, 147, 207, 221, 281, 295, 355, 429 Dimethylpolysiloxane...
Page 72 Chromatographic Symptoms Troubleshooting and Maintenance Guide...
Page 73 Agilent 5975T LTM GC/MSD Troubleshooting and Maintenance Guide Not Ready Symptoms Instrument Never Becomes Ready Flow Never Becomes Ready Temperature Never Becomes Ready Cannot Set a Flow or Pressure A Gas Does Not Reach Setpoint Pressure or Flow A Gas Exceeds Pressure Setpoint or Flow...
Page 74: Not Ready Symptoms
Not Ready Symptoms Instrument Never Becomes Ready Normally the instrument becomes ready after flows and temperatures reach setpoint. If the instrument does not become ready after a long period of time, perform the following using the LCP: • Press [Status] or a component key (for example, [Front inlet]) to see which setpoints or conditions are not ready.
Page 75: Flow Never Becomes Ready
Not Ready Symptoms Flow Never Becomes Ready If the gas flow never becomes ready, check for the following: • Check the supply gas for sufficient delivery pressure. • Check the restrictors installed in the Aux EPC module. See Restrictors in the Advanced User Guide. •...
Page 76: Temperature Never Becomes Ready
Not Ready Symptoms Temperature Never Becomes Ready To be considered ready, a temperature must be at setpoint ±1 °C for 30 s. If a temperature never becomes ready, do the following: • Check for a missing insulation cup on an inlet. •...
Page 77: Cannot Set A Flow Or Pressure
Not Ready Symptoms Cannot Set a Flow or Pressure If you cannot set a flow or pressure using the split/splitless, inlet, do the following: • Check the column mode. • Check that a capillary column is configured to the correct inlet.
Page 78: A Gas Does Not Reach Setpoint Pressure Or Flow
Not Ready Symptoms A Gas Does Not Reach Setpoint Pressure or Flow If an inlet does not reach its pressure setpoint, it will shut down. Do the following: • Check for sufficient gas supply delivery pressure. The pressure at the supply should be at least 10 psi greater than the desired setpoint.
Page 79: A Gas Exceeds Pressure Setpoint Or Flow
Not Ready Symptoms A Gas Exceeds Pressure Setpoint or Flow If a gas exceeds its pressure or flow setpoint, do the following: • Decrease the split ratio. • Replace the split vent filter. • Verify that the correct liner is selected. •...
Page 80: The Inlet Pressure Or Flow Fluctuates
Not Ready Symptoms The Inlet Pressure or Flow Fluctuates A fluctuation in inlet pressure causes variations in the flow rate and retention times during a run. Do the following: • Check if the gas purifier or gas generator is operating at or near capacity.
Page 81: Cannot Maintain A Pressure As Low As The Setpoint On A Split Inlet
Not Ready Symptoms Cannot Maintain a Pressure as Low as the Setpoint on a Split Inlet If the instrument cannot maintain a pressure as low as the setpoint, check for the following: • Consider using a liner designed for split analysis. •...
Page 82: The Measured Column Flow Does Not Equal The Displayed Flow
Not Ready Symptoms The Measured Column Flow Does Not Equal the Displayed Flow If the actual column flow does not match the calculated flow displayed on the GC, do the following: • Verify that the measured flows are corrected to 25 °C and 1 atmosphere.
Page 83: Als Symptoms
Agilent 5975T LTM GC/MSD Troubleshooting and Maintenance Guide ALS Symptoms Plunger Errors Syringe Needle Bends During Injection into Inlet Agilent Technologies...
Page 84: Plunger Errors
ALS Symptoms Plunger Errors If the 7693 ALS reports a plunger error, see if the syringe plunger is sticking or is not securely connected to the plunger carrier. Troubleshooting and Maintenance Guide...
Page 85: Syringe Needle Bends During Injection Into Inlet
ALS Symptoms Syringe Needle Bends During Injection into Inlet When troubleshooting the injector, keep your hands away from WA R N I N G the syringe needle. The needle is sharp and may contain hazardous chemicals. Refer to your 7693 Automatic Liquid Sampler Installation, Operation and Maintenance Manual for additional information.
Page 86 ALS Symptoms Troubleshooting and Maintenance Guide...
Page 87: Shutdown Symptoms
Agilent 5975T LTM GC/MSD Troubleshooting and Maintenance Guide Shutdown Symptoms Column Shutdowns Hydrogen Shutdowns Thermal Shutdowns Agilent Technologies...
Page 88: Column Shutdowns
Shutdown Symptoms Column Shutdowns The instrument monitors inlet and auxiliary gas streams. If a carrier gas (which can include an auxiliary flow module or pneumatics control module) is unable to reach its flow or pressure setpoint, the instrument assumes that a leak exists. It will warn you with a beep after 25 seconds, and it will continue to beep in intervals.
Page 89: Hydrogen Shutdowns
Shutdown Symptoms Hydrogen Shutdowns Hydrogen gas may be used as a carrier gas. When mixed with air, hydrogen can form explosive mixtures. The instrument monitors inlet and auxiliary gas streams. If a stream is unable to reach its flow or pressure setpoint and if that stream is configured to use hydrogen, the instrument assumes that a leak exists.
Page 90: Thermal Shutdowns
Shutdown Symptoms Thermal Shutdowns A thermal fault means that the oven or another heated zone is not within its allowable temperature range (lower than minimum temperature or higher than maximum temperature). To recover from this state: Fix the cause of the shutdown: •...
Page 91 Agilent 5975T LTM GC/MSD Troubleshooting and Maintenance Guide Instrument Power On and Communication Symptoms Instrument does not turn on Foreline pump is not operating MSD turns on but then the foreline pump shuts off Local control panel says “No server found”...
Page 92: Instrument Power On And Communication Symptoms
Instrument Power On and Communication Symptoms Instrument does not turn on Nothing happens when the instrument 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 •...
Page 93: Foreline Pump Is Not Operating
Instrument Power On and Communication Symptoms Foreline pump is not operating The instrument is receiving power (the fan is operating and the local control panel is lit) but the foreline pump is not operating. • Large air leak (usually the analyzer door open) has caused pumpdown failure.
Page 94: Msd Turns On But Then The Foreline Pump Shuts Off
Instrument Power On and Communication Symptoms MSD turns on but then the foreline pump shuts off MSDs will shut down both the foreline pump and the high vacuum pump if the system fails to pump down correctly. This is usually because of a large air leak: either the sideplate has not sealed correctly or the vent valve is still open.
Page 95: Local Control Panel Says "No Server Found
Instrument Power On and Communication Symptoms Local control panel says “No server found” • Disconnected LAN cable between MSD and the switch, or the switch and the PC • PC is turned off Holding the No/Cancel key down for 5 seconds will bypass error and allow the user to look at the LCP.
Page 96: Instrument Turns On, Then Stops During Startup (During Self-Test)
Instrument Power On and Communication Symptoms Instrument Turns On, Then Stops During Startup (During Self-Test) If the instrument turns on but the normal display does not appear: Turn the power switch Off. Wait one minute, then turn the power On. If the instrument does not return to normal, record any messages that appear on the display and LED.
Page 97: Pc Cannot Communicate With Instrument
Instrument Power On and Communication Symptoms PC Cannot Communicate with Instrument • Run a ping test The MS-DOS ping command verifies communications across a TCP/IP connection. To use it, open the command prompt window. Type ping followed by an IP address. For example, if the IP address is 10.1.1.101, enter ping 10.1.1.101.
Page 98 Instrument Power On and Communication Symptoms Troubleshooting and Maintenance Guide...
Page 99 Agilent 5975T LTM GC/MSD Troubleshooting and Maintenance Guide Checking for Leaks Leak Check Tips To Check for External Leaks To Check for Instrument Leaks Leaks in Capillary Flow Fittings Agilent Technologies...
Page 100: Checking For Leaks
Checking for Leaks Leak Check Tips When checking for leaks, consider the system in two parts: external leak points and instrument leak points. • External leak points include the gas cylinder (or gas purifier), regulator and its fittings, supply shutoff valves, and connections to the GC supply fittings.
Page 101: To Check For External Leaks
Checking for Leaks To Check for External Leaks Check for leaks at these connections: • Gas supply bulkhead fittings • Gas cylinder fitting • Regulator fittings • Traps • Shut-off valves • T-fittings Perform a pressure drop test. Turn off the instrument. Set the regulator pressure to 415 kPa (60 psi).
Page 102 Checking for Leaks Wait 5 min. If there is a measurable drop in pressure, there is a leak in the external connections. No drop in pressure indicates that the external connections are not leaking. Troubleshooting and Maintenance Guide...
Page 103: To Check For Instrument Leaks
Checking for Leaks To Check for Instrument Leaks Check for leaks at these connections: • Inlet septum, septum head, liner, split vent trap, split vent trap line, and purge vent fittings • LTM column connections to inlets, GC/MSD transfer line, and unions •...
Page 104: Leaks In Capillary Flow Fittings
Checking for Leaks Leaks in Capillary Flow Fittings For capillary flow fittings, a leak usually indicates that the fitting has been overtightened. Unless the fitting is obviously loose, do not tighten it further. Instead, remove the connection, trim the column end, and install it again. (See “To Attach a Capillary Column Using SilTite Metal Fittings”...
Page 105: Troubleshooting Tasks
Agilent 5975T LTM GC/MSD Troubleshooting and Maintenance Guide Troubleshooting Tasks To Measure a Split Vent or Septum Purge Flow Agilent Technologies...
Page 106: To Measure A Split Vent Or Septum Purge Flow
Troubleshooting Tasks To Measure a Split Vent or Septum Purge Flow Note that the GC reports flows calibrated to 25 °C and 1 atmosphere. Correct flowmeter results accordingly. Hydrogen (H ) is flammable and is an explosion hazard when WA R N I N G mixed with air in an enclosed space (for example, a flow meter).
Page 107 Troubleshooting Tasks • The split vent has a 1/8-in Swagelok threaded fitting. Create and use a 1/8-in tub adapter (as shown above) to covert the 1.8-in threaded fitting into a 1/8-tube. This prevents the rubber flowmeter tubing from leaking around the threads, which will result in leakage and thus an incorrect flow reading.
Page 108 Troubleshooting Tasks Troubleshooting and Maintenance Guide...
Page 109: General Maintenance
Agilent 5975T LTM GC/MSD Troubleshooting and Maintenance Guide General Maintenance Before Starting To Attach a Capillary Column Using SilTite Metal Fittings To Disconnect Fused Silica Tubing From a SilTite Fitting Maintaining the Vacuum System To Check and Add Foreline Pump Oil...
Page 110: Before Starting
General Maintenance Before Starting For your safety, read all of the information in this introduction before performing any maintenance tasks. Scheduled maintenance Common maintenance tasks are listed in Table 5. Performing these tasks when scheduled can reduce operating problems, prolong system life, and reduce overall operating costs. Keep a record of system performance (tune reports) and maintenance operations performed.
Page 111 General Maintenance Tools, spare parts, and supplies Some of the required tools, spare parts, and supplies are included in the shipping kit. You must supply others yourself. Each maintenance procedure includes a list of the materials required for that procedure. “Consumables and Maintenance Supplies”...
Page 112 General Maintenance • GC/MSD interface • Analyzer parts • Vacuum pumps • Inlet • LTM column • Guard column heated enclosure Never touch these parts while your instrument is on. After the WA R N I N G instrument is turned off, give these parts enough time to cool before handling them.
Page 113 General Maintenance The oil in the standard foreline pump also collect traces of the samples being analyzed. All used pump fluid should be considered hazardous and handled accordingly. Dispose of used fluid correctly, as specified by your local regulations. When replacing pump fluid, use appropriate chemical-resistant WA R N I N G gloves and safety glasses.
Page 114: To Attach A Capillary Column Using Siltite Metal Fittings
General Maintenance To Attach a Capillary Column Using SilTite Metal Fittings This procedure is used to attach a capillary column to the Ultimate Union. Gather the following: • SilTite ferrules (see Table • Swaging nut for SilTite ferrules (G2855-20555) • Two 1/4-inch open-end wrenches •...
Page 115 General Maintenance Using two wrenches against each other, tighten the two nuts together a little at a time, occasionally checking to see if the ferrule is gripping the tube. When the ferrule just starts to grip, notice position of the nuts and then tighten one of the nuts by turning 45 to 60 degrees of rotation, but no more than 60 degrees (one flat).
Page 116 General Maintenance Insert the assembled ferrule and nut into the SilTite fitting. Tighten with a wrench by only 15 to 20 degrees of rotation. Troubleshooting and Maintenance Guide...
Page 117: To Disconnect Fused Silica Tubing From A Siltite Fitting
General Maintenance To Disconnect Fused Silica Tubing From a SilTite Fitting Loosen and remove the internal nut. If tubing and ferrule do not come free, insert a pointed object (pen, paper clip) into the ferrule release hole and press firmly. You will hear a click as the ferrule releases.
Page 118: Maintaining The Vacuum System
General Maintenance Maintaining the Vacuum System Periodic maintenance As listed earlier in Table 5, some maintenance tasks for the vacuum system must be performed periodically. These include: • Checking the foreline pump fluid (every week) • Checking the calibration vial (every 6 months) •...
Page 119: To Check And Add Foreline Pump Oil
General Maintenance To Check and Add Foreline Pump Oil Standard foreline pump only Materials needed • Foreline pump oil (6040-0621) • Funnel (9301-6461) • Hex key, 5-mm, to remove drain plug (8710-1838) • Screwdriver, flat-blade, to remove top fill cap Procedure The foreline pump can cause burns if touched when operating.
Page 120 General Maintenance Oil level lines Oil mist filter Fill cap Drain plug Figure 5 Foreline pump (standard pump shown without safety cage) Troubleshooting and Maintenance Guide...
Page 121: To Drain The Foreline Pump
General Maintenance To Drain the Foreline Pump Standard foreline pump only Materials needed • Book or other solid object approximately 5 cm thick • Container for catching old pump oil, 500 mL • Gloves, oil- and solvent-resistant • Screwdriver, flat-blade, large (8730-0002) •...
Page 122: To Refill The Foreline Pump
General Maintenance To Refill the Foreline Pump Standard foreline pump only Materials needed • Foreline pump oil (6040-0621) – approximately 0.28 L required • Funnel (9301-6461) • Gloves, oil- and solvent-resistant • Screwdriver, flat-blade, large (8730-0002) • Drain plug O-ring (if required) (0905-1515) •...
Page 123: To Maintain The Dry Vacuum Pump
General Maintenance To Maintain the Dry Vacuum Pump Materials needed • Replacement tip seal kit (IDP3TS) • Wrench, open-end, 1/4-inch × 5/16-inch (8710-0510) • Razor blade or side-cutting pliers • Compressed air (optional) Procedure The foreline pump can cause burns if touched when operating. It WA R N I N G has a safety shield to prevent the user from touching it.
Page 124 General Maintenance Place the new main 0-ring into the groove in the pump frame, ensuring first that the groove is clean. Replace the outboard housing, ensuring that the tip seal has not fallen out of its groove. See Figure Replace the four M5 bolts in the outboard housing. See Figure Reconnect the electrical connector at the front cowling.
Page 125: To Refill The Ei Calibration Vial
General Maintenance To Refill the EI Calibration Vial Materials needed • PFTBA (05971-60571) Procedure  Stop any tuning or data acquisition.  Turn off the analyzer. There are several ways to do this: • In the Tune and Vacuum Control view, select MS OFF from the Execute menu.
Page 126 General Maintenance The collar should be snug but not overly tight. Do not use a tool to tighten the collar. It does not require that much force. Reinstall the analyzer window cover. Select Purge Calibrant Valve from the Vacuum menu in the Tune and Vacuum Control view.
Page 127: To Purge The Calibration Valves
General Maintenance To Purge the Calibration Valves After removing a calibrant vial, you purge the calibration valve. must C A U T I O N Failure to do so will result in damage to the filaments and the electron multiplier. EI calibration valve After adding new PFTBA to the calibrant vial, you must purge the air out of the vial and valve.
Page 128: To Remove The Ei Calibration And Vent Valve Assembly
General Maintenance To Remove the EI Calibration and Vent Valve Assembly Materials needed • Screwdriver, Torx T-15 (8710-1622) Procedure   Vent the instrument. Trace the calibration valve cable to the connector next to the fan and disconnect it. Loosen the collar and remove the calibration vial (Figure Just loosen the collar, do not remove it.
Page 129: To Reinstall The Ei Calibration And Vent Valve Assembly
General Maintenance To Reinstall the EI Calibration and Vent Valve Assembly Materials needed • Calibration valve (G3170-60204) • O-ring for calibration valve (0905-1217) • PFTBA (05971-60571) or other tuning compound • Screwdriver, Torx T-15 (8710-1622) Procedure   Remove the old valve assembly. See page 128 Figure Be sure the valve O-ring is in place.
Page 130: To Install A Micro-Ion Vacuum Gauge
General Maintenance To Install a Micro-Ion Vacuum Gauge The Micro-Ion vacuum gauge is optional for EI operation. Materials needed • KF16 O-ring 0905-1463 • Micro-Ion vacuum gauge (G3397A) • Power cord • Micro-Ion vacuum gauge cable (G3170-60805) • Screwdriver, Torx T-15 (8710-1622) Procedure ...
Page 131 General Maintenance Rear MSD cover Captive screws Figure 8 Removing MSD rear cover Troubleshooting and Maintenance Guide...
Page 132: To Remove The Micro-Ion Vacuum Gauge
General Maintenance To Remove the Micro-Ion Vacuum Gauge Procedure   Vent the instrument. Remove the MSD back cover. Disconnect the cable on the back of the Micro-Ion vacuum gauge. Unscrew the large thumbnut on the gauge clamp. Remove the long screw from the clamp. While supporting the gauge body, remove the clamp from the mounting flange.
Page 133: To Lubricate The Side Plate O-Ring
Procedure  Vent the instrument.  Open the analyzer chamber. (See the 5975T LTM GC/MSD Operation Manual). Remove the analyzer by disconnecting the source wiring, and loosening the sideboard from the hinge. (See the 5975T LTM GC/MSD Operation Manual).
Page 134 General Maintenance Close the analyzer chamber. Pump down the MSD. Side plate O-ring Figure 9 Side plate O-ring Troubleshooting and Maintenance Guide...
Page 135: To Lubricate The Vent Valve O-Ring
General Maintenance To Lubricate the Vent Valve O-Ring Materials needed • Cloths, clean (05980-60051) • Gloves, clean, lint-free • Large (8650-0030) • Small (8650-0029) • Grease, Apiezon L, high vacuum (6040-0289) • O-ring, vent valve (0905-1217). Replace if the old O-ring is worn or damaged The vent valve O-ring needs a thin coat of lubrication to ensure a good vacuum seal and smooth operation.
Page 136 General Maintenance Vent valve O-ring Vent valve knob Figure 10 Vent valve O-ring Reinstall the vent valve knob. Be very careful when reinstalling the vent valve knob. It is possible C A U T I O N to cross thread the knob and damage the threads in the valve body. Be sure the O-ring stays in place.
Page 137: Maintaining The Analyzer
General Maintenance Maintaining the Analyzer Scheduling None of the analyzer components require periodic maintenance. Some tasks, however, must be performed when MSD behavior indicates they are necessary. These tasks include: • Cleaning the ion source • Replacing filaments • Replacing the electron multiplier horn Chapter 3 provides information about symptoms that indicate the need for analyzer maintenance.
Page 138 In general, the mass filter 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 insulator must never be touched.
Page 139: To Remove The Ei Ion Source
Procedure   Vent the instrument. Open the analyzer chamber. See the 5975T LTM GC/MSD Operation Manual. Make sure you use an antistatic wrist strap and take other antistatic precautions before touching analyzer components. Disconnect the seven wires from the ion source. Do not bend...
Page 140 General Maintenance The analyzer operates at high temperatures. Do not touch any part WA R N I N G until you are sure it is cool. Source feedthrough board Ion source Thumbscrews Source heater and temperature sensor wires Source radiator Figure 11 Removing the ion source Troubleshooting and Maintenance Guide...
Page 141: To Disassemble The Ei Ion Source
General Maintenance To Disassemble the EI Ion Source Materials needed • Gloves, clean, lint-free • Large (8650-0030) • Small (8650-0029) • Hex ball driver, 1.5 mm (8710-1570) • Hex ball driver, 2.0 mm (8710-1804) • Wrench, open-end, 10 mm (8710-2353) Procedure ...
Page 142 General Maintenance Setscrew Source body Repeller Filament Interface socket Repeller insulator Source heater assembly Repeller insulator Washer Repeller nut Lens insulator Filament (1 of 2) Entrance lens Ion focus lens Drawout cylinder Drawout plate Figure 12 Disassembling the EI ion source Troubleshooting and Maintenance Guide...
Page 143: To Clean The Ei Ion Source
General Maintenance To Clean the EI Ion Source Materials needed • Abrasive paper (5061-5896) • Alumina abrasive powder (8660-0791) • Aluminum foil, clean • Cloths, clean (05980-60051) • Cotton swabs (5080-5400) • Glass beakers, 500 mL • Gloves, clean, lint-free •...
Page 144 General Maintenance Source body Repeller Interface socket Drawout plate Drawout cylinder Ion focus lens Entrance lens Figure 13 Source parts to be cleaned Procedure The filaments, source heater assembly, and insulators cannot be C A U T I O N cleaned ultrasonically.
Page 145 General Maintenance Abrasively clean the surfaces that contact the sample or ion beam. Use an abrasive slurry of alumina powder and reagent-grade methanol on a cotton swab. Use enough force to remove all discolorations. Polishing the parts is not necessary; small scratches will not harm performance.
Page 146: To Reassemble The Ei Ion Source
General Maintenance To Reassemble the EI Ion Source Materials needed • Gloves, clean, lint-free • Large (8650-0030) • Small (8650-0029) • Hex ball driver, 1.5 mm (8710-1570) • Hex ball driver, 2.0 mm (8710-1804) • Wrench, open-end, 10 mm (8710-2353) Procedure ...
Page 147 General Maintenance Source body Setscrew Repeller Repeller insulator Filament (1 of 2) Source heater assembly Repeller insulator Washer Repeller nut (do not over-tighten) Interface socket Ion focus lens Drawout cylinder Drawout plate Lens insulator (1 of 2) Entrance lens Figure 14 Assembling the ion source Troubleshooting and Maintenance Guide...
Page 148: To Reinstall The Ei Ion Source
Install and hand tighten the source thumbscrews. Do not overtighten the thumbscrews. Connect the ion source wires as shown in “To Remove the EI Ion Source” on page 139. Close the analyzer chamber. Pump down the instrument. See the 5975T LTM GC/MSD Operation Manual. Troubleshooting and Maintenance Guide...
Page 149: To Remove A Filament
General Maintenance To Remove a Filament Ion source Thumbscrews Source radiator Figure 15 Installing the EI ion source Materials needed • Gloves, clean, lint-free • Large (8650-0030) • Small (8650-0029) • Hex ball driver, 1.5-mm (8710-1570) Procedure Vent the MSD. Open the analyzer chamber.
Page 150 General Maintenance Filament 1 Filament 2 Figure 16 Replacing filaments Troubleshooting and Maintenance Guide...
Page 151: To Reinstall A Filament
General Maintenance To Reinstall a Filament Materials needed • Filament assembly (G2590-60053) • Gloves, clean, lint-free • Large (8650-0030) • Small (8650-0029) • Hex ball driver, 1.5 mm (8710-1570) Procedure   Install the new filament (Figure 16). Remove the screw holding the filament to the ion source body.
Page 152: To Remove The Heater And Sensor From The Ion Source
General Maintenance To Remove the Heater and Sensor from the Ion Source Materials needed • Gloves, clean, lint-free • Large (8650-0030) • Small (8650-0029) • Hex ball driver, 1.5 mm (8710-1570) • Hex ball driver, 2.0 mm (8710-1804) • Hex nut driver, 5.5 mm (8710-1220) Procedure Vent the MSD.
Page 153 General Maintenance Source body Filament Repeller Repeller insulator Source heater assembly Repeller nut, washer, insulator Filament Figure 17 Replacing the heater and sensor Troubleshooting and Maintenance Guide...
Page 154: To Reinstall The Heater And Sensor In The Ion Source
General Maintenance To Reinstall the Heater and Sensor in the Ion Source Materials needed • Gloves, clean, lint-free • Large (8650-0030) • Small (8650-0029) • Hex ball driver, 1.5 mm (8710-1570) • Hex ball driver, 2.0 mm (8710-1804) • Hex nut driver, 5.5 mm (8710-1220) •...
Page 155: To Remove The Heater And Sensor From The Mass Filter
General Maintenance To Remove the Heater and Sensor from the Mass Filter Materials needed • Gloves, clean, lint-free • Large (8650-0030) • Small (8650-0029) • Hex ball driver, 1.5 mm (8710-1570) • Hex ball driver, 2.0 mm (8710-1804) Procedure Vent the instrument. Open the analyzer chamber.
Page 156: To Reinstall The Heater And Sensor In The Mass Filter
General Maintenance To Reinstall the Heater and Sensor in the Mass Filter Materials needed • Gloves, clean, lint-free • Large (8650-0030) • Small (8650-0029) • Hex ball driver, 1.5 mm (8710-1570) • Hex ball driver, 2.0 mm (8710-1804) • Mass filter heater assembly (G1099-60172) Procedure Unpack the new mass filter heater assembly (Figure...
Page 157 General Maintenance Heater/sensor assembly Mass filter radiator Figure 18 Mass filter heater and sensor Troubleshooting and Maintenance Guide...
Page 158: To Replace The Electron Multiplier Horn
General Maintenance To Replace the Electron Multiplier Horn Materials needed • Electron multiplier horn (G3170-80103) • Gloves, clean, lint-free • Large (8650-0030) • Small (8650-0029) Procedure Vent the instrument. Open the analyzer chamber.   Open the retaining clip (Figure 19).
Page 159 General Maintenance Pump down the MSD. Electron multiplier horn Retaining clip Figure 19 Replacing the electron multiplier horn Troubleshooting and Maintenance Guide...
Page 160: Maintaining The Electronics
The primary fuses can be replaced by the operator. The RF coils can be adjusted by the operator. All other maintenance of the electronics should be performed by your Agilent Technologies service representative. Improper use of these procedures could create a serious safety WA R N I N G hazard.
Page 161 General Maintenance Take extra precautions, such as a grounded antistatic mat, if you must work on components or assemblies that have been removed from the MSD. This includes the analyzer. In order to be effective, an antistatic wrist strap must fit snugly (not C A U T I O N tight).
Page 162: To Adjust The Quad Frequency
General Maintenance To Adjust the Quad Frequency Materials needed • Screwdriver, flat-blade, large (8730-0002) Procedure   Make sure the MSD is at thermal equilibrium. It takes at least 2 hours after all heated zones have reached their setpoints for the MSD to reach thermal equilibrium. Open the analyzer cover.
Page 163 General Maintenance RF cover Quad frequency adjustment screws Figure 20 Adjusting the quad frequency Repeat steps 4 through 7 for m/z 650. The minimum voltage is typically between 300 and 340 mV. Exit the Set Optimize Quadrupole Frequency program. Select MS OFF from the Execute menu. Close the analyzer cover.
Page 164: To Replace The Primary Fuses
General Maintenance To Replace the Primary Fuses Materials needed • Fuse, T8 A, 250 V (2110-0969) – 2 required • Screwdriver, flat-blade (8730-0002) The most likely cause of failure of the primary fuses is a problem with the foreline pump. If the primary fuses in your MSD fail, check the foreline pump.
Page 165 General Maintenance Primary fuses in holders Figure 21 Primary fuses (turbo model shown) Repeat steps 3 through 6 for the other fuse. Always replace both fuses. Reconnect the instrument power cord to the electrical outlet. Pump down the MSD. Troubleshooting and Maintenance Guide...
Page 166 General Maintenance Troubleshooting and Maintenance Guide...
Page 167 Agilent 5975T LTM GC/MSD Troubleshooting and Maintenance Guide Maintaining the Split/Splitless Inlet Consumables and Parts for the Split/Splitless Inlet Exploded Parts View of the Split/Splitless Inlet To Clean the Septum Seat in the Insert Assembly of the Split/Splitless Inlet To Replace the Gold Seal on the Split/Splitless Inlet...
Page 168: Maintaining The Split/Splitless Inlet
Maintaining the Split/Splitless Inlet Consumables and Parts for the Split/Splitless Inlet See the Agilent catalog for consumables and supplies for a more complete listing, or visit the Agilent Web site for the latest information (www.agilent.com/chem/supplies). \<space> Table 8 Split, splitless, direct, and direct connect inlet liners Mode Description Deactivated...
Page 169 Maintaining the Split/Splitless Inlet Table 9 Nuts, ferrules, and hardware for capillary columns (continued) Column id Description Typical use Part number/quantity (mm) .250 Ferrule, Vespel/graphite, 0.4-mm 0.1-mm, 0.2-mm, and 0.25-mm 5181-3323 (10/pk) capillary columns Ferrule, graphite, 0.5-mm id 0.1-mm, 0.2-mm, 0.25-mm, and 5080-8853 (10/pk) 0.32-mm capillary columns Column nut, finger-tight (for...
Page 170 Maintaining the Split/Splitless Inlet Table 10 Other consumables and parts for the split/splitless inlet (continued) Description/quantity Part number Gold-plated seal (standard application) 5188-5367 Gold-plated seal with cross (high split flows) (includes SS washer) 5182-9652 Stainless steel washer (0.375-inch od), 12/pk 5061-5869 Reducing nut 18740-20800...
Page 171: Exploded Parts View Of The Split/Splitless Inlet
Maintaining the Split/Splitless Inlet Exploded Parts View of the Split/Splitless Inlet Septum retainer nut Merlin cap Septum Merlin Microseal Insert assembly O-ring Liner Split vent line Split/splitless inlet body Retaining nut Inlet gold seal Washer Reducing nut Ferrule Column nut Troubleshooting and Maintenance Guide...
Page 172: To Clean The Septum Seat In The Insert Assembly Of The Split/Splitless Inlet
Compressed, filtered, dry air or nitrogen • Wrench, capillary inlet (optional) Load the maintenance method (see the 5975T LTM GC/MSD Operation Manual) and wait for the GC to become ready. Be careful! The oven and/or inlet may be hot enough to cause WA R N I N G burns.
Page 173 Maintaining the Split/Splitless Inlet Use tweezers to remove the septum or Merlin Microseal from the retainer nut. (See “To Clean the Septum Seat in the Insert Assembly of the Split/Splitless Inlet” on page 172.) Scrub the residue from the retainer nut and septum holder with a small piece of rolled-up steel wool and tweezers.
Page 174: To Replace The Gold Seal On The Split/Splitless Inlet
Maintaining the Split/Splitless Inlet To Replace the Gold Seal on the Split/Splitless Inlet Gather the following: • Replacement gold seal (See “Consumables and Parts for the Split/Splitless Inlet” on page 168.) • Replacement washer • 1/4-inch wrench (for column) • 1/2-inch wrench •...
Page 175 Make sure raised portion faces down. Replace the reducing nut and tighten securely with a wrench. Install the inlet guard column. Bakeout contaminants. (See the 5975T LTM GC/MSD Operation Manual.) Restore the analytical method. Reset the EMF counter. Check for leaks.
Page 176: To Replace The Filter In The Split Vent Line For The Split/Splitless Inlet
Maintaining the Split/Splitless Inlet To Replace the Filter in the Split Vent Line for the Split/Splitless Inlet   Gather the following: • New filter cartridge. (See “Consumables and Parts for the Split/Splitless Inlet” on page 168.) • T-20 Torx screwdriver Load the maintenance method and wait for the GC to become ready.
Page 177 Maintaining the Split/Splitless Inlet Completely loosen the two screws that secure the split vent valve in place. Lift the filter trap assembly and split vent valve from the mounting bracket together and unscrew the split vent front weldment on the filter trap assembly. Be careful not to stress the tubing between the split vent valve and the trap.
Page 178 Maintaining the Split/Splitless Inlet Fully tighten the split vent front weldment onto the trap. Check for leaks. Restore the analytical method. Reset the split vent trap counter. Install the pneumatics cover. Troubleshooting and Maintenance Guide...
Page 179: To Clean The Split/Splitless Inlet
Maintaining the Split/Splitless Inlet To Clean the Split/Splitless Inlet Gather the following: • Replacement septum (See “Consumables and Parts for the Split/Splitless Inlet” on page 168.) • Replacement liner • Replacement O-ring • Replacement gold seal • Replacement washer • Solvent that will clean the type of deposits in your inlet •...
Page 180 Maintaining the Split/Splitless Inlet Install the gold seal and reducing nut. Install the liner and O-ring. Install the column. (See the 5975T LTM GC/MSD Operation Manual.) Check for leaks. Bakeout contaminants. (See 5975T LTM GC/MSD Operation Manual.) Restore the analytical method.
Page 181 Agilent 5975T LTM GC/MSD Troubleshooting and Maintenance Guide Vacuum System Overview Vacuum System Components Common Vacuum System Problems Foreline Pump High Vacuum Pump Analyzer Chamber Side Plate Vacuum Seals Turbo Pump and Fan Calibration Valve and Vent Valve Micro-Ion Vacuum Gauge This chapter describes components of the GC/MSD vacuum system.
Page 182: Vacuum System
Vacuum System Overview The vacuum system creates the high vacuum (low pressure) required for the instrument to operate. Without the vacuum, the molecular mean free path would be very short and ions would collide with air molecules before they could reach the detector operation at high pressures also would damage analyzer components.
Page 183: Vacuum System Components
Vacuum System Vacuum System Components The parts of the vacuum system are identified in Figure • Foreline (rough) pump • High vacuum pump (turbo pump) • Analyzer chamber • Side plate (analyzer door), and front and rear end plates • Vacuum seals •...
Page 184: Common Vacuum System Problems
• Inability of the turbo pump to reach 95% speed • Higher than normal high vacuum gauge controller readings The 5975T LTM GC/MSD will not pump down successfully unless you press on the side plate (analyzer door) when you turn on the instrument power. Continue to press until the sound from the foreline pump becomes quieter.
Page 185: Foreline Pump
Vacuum System Foreline Pump The foreline pump (Figure 24) reduces the pressure in the analyzer chamber so the high vacuum pump can operate. It also pumps away the gas 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.
Page 186 Vacuum System Hose to vacuum pump Exhaust outlet with oil mist filter Fill cap Power switch Ballast control Oil level window Drain plug (on front) Oil drip tray Standard pump (shown without safety cage) Hose to vacuum pump Exhaust outlet Power cord Dry pump (shown without cover) Hose to vacuum pump...
Page 187 Vacuum System The standard foreline pump is a two-stage rotary-vane pump. An optional dry pump is also available. The pump turns on when the instrument power is turned on. The foreline pump has a built-in antisuckback valve to help prevent backstreaming in the event of a power failure.
Page 188 Vacuum System The oil pan under the foreline pump can be a fire hazard (standard pump) Oily rags, paper towels, and similar absorbents in the oil pan could ignite and damage the pump and other parts of the MSD. Combustible materials (or flammable/non-flammable wicking WA R N I N G material) placed under, over, or around the foreline (roughing) pump constitutes a fire hazard.
Page 189: High Vacuum Pump
High Vacuum Pump Turbo pump system The 5975T LTM GC/MSD has a turbo pump with a screen to keep debris out of the pump, but no baffle is necessary. Pump speed is controlled by the turbo controller; there is no foreline gauge.
Page 190: Analyzer Chamber
Vacuum System Analyzer Chamber The analyzer chamber (Figure 25) is where the analyzer operates. The manifold is extruded and machined from an aluminum alloy. Large openings in the side, front, and rear of the analyzer chamber are closed by plates. O-rings provide the seals between the plates and the manifold.
Page 191: Side Plate
Vacuum System Side Plate The side plate (Figure 26) covers the large opening in the side of the analyzer chamber. It is attached to the manifold with a hinge. The analyzer assembly is attached to the side plate inside the analyzer chamber. The hinge allows the side plate to swing away from the manifold for easy access to the analyzer.
Page 192 Vacuum System EM voltage Signal (detector output) Mass filter (quadrupole) Screws for radiator mounting brackets (2 of 4) Ion source and heater Detector focus High voltage (HED) Figure 26 Side plate feedthroughs Troubleshooting and Maintenance Guide...
Page 193: Vacuum Seals
Vacuum System Vacuum Seals Vacuum seals are shown in Figure Several types of Viton elastomer O-ring seals are used to prevent air leaks into the analyzer chamber. All these O-rings, and the surfaces to which they seal, must be kept clean and protected from nicks and scratches.
Page 194 Vacuum System Compression seals A compression fitting consists of a threaded fitting on the analyzer chamber and a threaded collar with a ferrule and O-ring. A cylindrical part fits inside the collar. Tightening the collar presses the ferrule, compressing the O-ring around the part.
Page 195: Turbo Pump And Fan
Vacuum System Turbo Pump and Fan The turbo pump is clamped directly to the bottom of the analyzer chamber. The turbo pump has a cylindrical body with its inlet open to the interior of the analyzer chamber. Inside the pump body is a central shaft or cylinder.
Page 196: Calibration Valve And Vent Valve
Vacuum System Calibration Valve and Vent Valve Calibration valve A calibration valve (Figure 28) is an electromechanical valve with a vial to hold the tuning compound. When a calibration valve is opened, tuning compound in the vial diffuses into the ion source.
Page 197 Vacuum System Vent valve knob O-ring Air passage Valve closed Valve open Valve open too far Figure 29 Vent valve Troubleshooting and Maintenance Guide...
Page 198: Micro-Ion Vacuum Gauge
Vacuum System Micro-Ion Vacuum Gauge The G4363A Micro-Ion vacuum gauge is optional. It consists of the sensing element (an ionization-type gauge) and the necessary electronics to support it. If you are using H as a carrier gas, do not turn on the Micro-Ion WA R N I N G vacuum gauge if there is any possibility that H has accumulated...
Page 199 Agilent 5975T LTM GC/MSD Troubleshooting and Maintenance Guide Analyzer Overview EI Ion Source Filaments Other Source Elements Quadrupole Mass Filter Detector Analyzer Heaters and Radiators This chapter describes the parts of the analyzer. Agilent Technologies...
Page 200: Analyzer
Analyzer Overview The analyzer (Figure 30) is the heart of the MSD. It ionizes the sample, filters the ions, and detects them. The sample components exiting the GC column flow into the ion source. In the ion source, the sample molecules are ionized and fragmented.
Page 201 Analyzer Detector Mass filter heater assembly Mass filter contact Feedthrough board Ion source (inside radiator) Mass filter (inside radiator) Mass filter contact cable Figure 30 The analyzer Troubleshooting and Maintenance Guide...
Page 202: Ei Ion Source
Analyzer EI Ion Source The EI ion source (Figure 31) operates by electron ionization. The sample enters the ion source from the GC/MSD interface. Electrons emitted by a filament enter the ionization chamber, guided by a magnetic field. The high-energy electrons interact with the sample molecules, ionizing and fragmenting them.
Page 203: Filaments
Analyzer Filaments Two filaments (Figure 31) are located on opposite sides of the outside of the EI ion source. The active filament carries an adjustable AC emission current. The emission current heats the filament causing it to emit electrons which ionize the sample molecules.
Page 204 Analyzer • 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 parameters, set the solvent delay so that the analyzer will not turn on while the solvent peak is eluting.
Page 205: Other Source Elements
Analyzer Other Source Elements Magnet The field created by the magnet directs the electrons emitted by the filament into and across the ionization chamber. The magnet assembly is a permanent magnet with a charge of 350 gauss in the center of the field. Repeller The repeller (Figure...
Page 206 Analyzer Entrance lens The entrance lens (Figure 31) is at the entrance to the quadrupole mass filter. This lens minimizes the fringing fields of the quadrupole which discriminate against high-mass ions. There is a permanent +4.4 volt voltage added to the entrance lens.
Page 207: Quadrupole Mass Filter
Analyzer Quadrupole Mass Filter The mass filter separates ions according to their mass-to-charge ratio (m/z). At a given time, only ions of a selected mass-to-charge ratio can pass through the filter to the detector. The mass filter in the MSD is a quadrupole (Figure 32).
Page 208 Analyzer AMU gain AMU gain (AmuGain) affects the ratio of DC voltage to RF frequency on the mass filter. This controls the widths of the mass peaks. • Higher gain yields narrower peaks. • AMU gain affects peaks at high masses more than peaks at low masses.
Page 209 The mass filter requires no periodic maintenance. It should not be removed from the radiator. If absolutely necessary (that is, if the only alternative is replacement), the quadrupole can be cleaned. Cleaning must be performed by Agilent Technologies service personnel. Never put the quadrupole in an ultrasonic cleaner.
Page 210: Detector
Analyzer Detector The detector (Figure 33) in the MSD analyzer is a high energy conversion dynode (HED) coupled to an electron multiplier (EM). The detector is located at the exit end of the quadrupole mass filter. It receives the ions that have passed through the mass filter.
Page 211 Analyzer from the Checkout menu in the Instrument Control view to see the tune charts. Sudden changes usually indicate a different type of problem. See Also • Troubleshooting in the online help for more information about symptoms that may indicate EM problems. HED high voltage EM voltage EM horn...
Page 212: Analyzer Heaters And Radiators
Analyzer Analyzer Heaters and Radiators The ion source and mass filter are housed in cylindrical aluminum tubes called radiators (Figure 34). The radiators control the distribution of heat in the analyzer. They also provide electrical shielding for analyzer components. The source heater and temperature sensor are mounted in the source heater block.
Page 213 Analyzer Mass filter radiator Mass filter heater assembly Ion source radiator Ion source heater assembly Figure 34 Heaters and radiators Troubleshooting and Maintenance Guide...
Page 214 Analyzer Troubleshooting and Maintenance Guide...
Page 215: 14 Electronics
GC/MSD. It may be of interest to persons responsible for servicing the GC/MSD (Figure 35). Dangerous voltages are present under the safety covers. Do not WA R N I N G remove safety covers. Refer servicing to your Agilent Technologies service representative. Agilent Technologies...
Page 216: Electronics
Electronics Cooling fan Log amplifier MSD LAN/MS control card Main board for MSD HED power supply Cooling fan Low voltage MSD power supply MSD Toroid transformer AC board Figure 35 MSD electronics module Troubleshooting and Maintenance Guide...
Page 217: Local Control Panel And Power Switch
Electronics Local Control Panel and Power Switch Local Control Panel (LCP) You can view system status and perform some control functions from the local control panel on the front of the instrument. Functions available through the local control panel include: •...
Page 218: Msd Side Board
Electronics MSD Side Board The MSD side board is mounted on the side plate. It performs these functions: • Provides the 1 MHz reference clock for the RF amplifier. • Generates the RF component of the voltage applied to the quadrupole mass filter according to a signal from the main board.
Page 219: Electronics Module
Electronics Electronics Module Most of the electronics in the MSD are contained in the electronics module. The whole electronics module can be replaced, if necessary, by your Agilent Technologies service representative. The electronics module contains: • Main board • Signal amplifier board •...
Page 220 Electronics • Supplies and controls the power for the ion source and quadrupole (mass filter) heaters. • Provides 24 VDC power for the cooling fans. Signal amplifier board The signal amplifier board amplifies the output of the detector. It produces an output voltage of 0 to 10 volts DC, proportional to the logarithm of the input current of 3 picoamps to 50 microamps.
Page 221 Electronics Pumpdown failure shutdown The MSD AC board will shut down both the high vacuum and the foreline pump if the system fails to pump down correctly. One condition that triggers shutdown is turbo pump speed below 80% 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.
Page 222: Lan/Ms Control Card
Electronics LAN/MS Control Card The LAN/MS control card is located to the left of the MSD main board on the electronics panel. The LAN/MS control card has two main functions: • Providing a communication interface between the MSD and the data system. •...
Page 223: Msd Power Supplies
Electronics MSD Power Supplies Low voltage (AC-DC) MSD power supply The low voltage MSD power supply is mounted next to the MSD toroid transformer in the MSD electronics module. A universal input power supply, it converts AC line voltage into the DC voltages used by the rest of the electronics.
Page 224: Side Panel Connectors
Electronics Side Panel Connectors The side panel (Figure 36) contains several connectors, the primary fuses, and several status LEDs. Most of these components are part of the AC board or the LAN/MS control card and extend through the side panel. High vacuum power (HIVAC POWER) connector The high vacuum power connector carries power for the turbo controller from the AC board.
Page 225 Electronics Event connector This connector provides two passive contact closures and two 24-volt outputs for controlling external devices. The outputs are controlled by valve drivers 5 through 8. BCD connector This connector provides two control relays and a BCD input for a stream selection valve.
Page 226 Electronics Remote start Event connector LAN-GC BCD connector LAN-MSD Sampler connector Primary fuses Power cord Foreline pump power cord Figure 36 Side panel connections (High vacuum power connector not shown) Troubleshooting and Maintenance Guide...
Page 227: Interfacing To External Devices
Electronics Interfacing to External Devices Remote control processor The remote control processor on the LAN/MS control card synchronizes start-run signals with external devices. The functions of the remote control processor are extended to the remote start (Remote) connector (Figure 37) on the side panel of the instrument.
Page 228 Electronics present between that pin and any ground. This same high can be detected between the ready and ground pins on the remote start connector on the instrument. Start run input The best way to generate a start run signal is to use the remote start connector on the instrument.
Page 229: Parts
MSDs and some parts in the GC.  This chapter is organized so that related parts are grouped together. Some of the parts listed are not user-replaceable. They are listed here for use by Agilent Technologies service representatives. Agilent Technologies...
Page 230: To Order Parts
Parts To Order Parts To order parts for your GC/MSD, address the order or inquiry to your local Agilent Technologies office. Supply them with the following information: Model and serial number of your instrument, located on a label on the lower left side near the front of the instrument.
Page 231: Electronics
Parts Electronics The printed circuit boards in the GC/MSD are available only as complete assemblies. Individual electronic components are not available. This section contains the following parts: cables (Tables and 13), printed circuit boards (Table 14 Figure 38), and fuses and switches (Table 16).
Page 232 Parts Table 13 Internal cables Description Part number AC board control cable (AC board to main board) G1099-60422 Chassis ground wire G1099-60433 Control panel ribbon cable (SC3 to LCP) G3170-60830 Electronics module fan cable G1099-60560 Fan (high vacuum) cable G1099-60561 Feedthrough board –...
Page 233 Internal cables (continued) Description Part number GC/MS RS232 communication cable, 650 mm, 9F/9F G4360-60520 LAN connector 1252-6152 5975T LTM GC/MSD Remote controlling Y cable G4360-60531 GC Module internal cables Oven door sensor assembly G4360-60410 RVM heater harness G4360-60509 Inlet/EPC fan harness...
Page 234 Parts Table 14 Printed circuit boards (Figure 38) (continued) Description Part number † Log Amp Fast Electronics G3170-65001 Toroid transformer G1099-60229 LUI panel PCA subassy G3880-60011 Side board, new G3170-65015 Side board, rebuilt G3170-69015 Turbo pump TMH control G3170-65020 5975T AC board (PCA) G4360-65050 5975T Column and transfer PCA G4360-65004...
Page 235 Parts HED power supply Cooling fan Low voltage power supply Toriod transformer AC board Cooling fan Signal amplifier board LAN/MS control card Main board Figure 38 Electronics module Fuses and power switch Table 16 Fuses and power switches Description Part number Fuse 8A, 250V 2110-0969 Fuse 15A (2/set)
Page 236 Parts Table 16 Fuses and power switches (continued) Description Part number Power button 5041-1203 Power switch extender rod G3170-40007 Troubleshooting and Maintenance Guide...
Page 237: Covers
Parts Covers Table 17 5975T LTM GC/MSD covers Description Part number Side panel lower assembly G3880-60070 PANEL-SUB-REAR G3880-00030 Front panel grill assembly G3880-60060 Side panel upper assembly G3880-60080 PANEL-REAR G3880-00026 GC Module side 5975T main cover G4360-67381 Small top GC cover...
Page 238: Local Control Panel
Parts Local Control Panel This section lists replaceable parts for the LCP and related covers. See Table Table 18 LCP and related parts (Figure Item Description Part number LCP fascia G3880-60000 LCP fascia assembly G3880-60011 Troubleshooting and Maintenance Guide...
Page 239 Parts LCP assembly and fascia Figure 39 LCP replacement parts Troubleshooting and Maintenance Guide...
Page 240: Vacuum System
Parts Vacuum System This section lists replacement parts available for the vacuum system. It includes clamps, O-rings and seals (Table 19), standard foreline pump and related components (Table 20 Figure 40), dry foreline pump and related components (Table 21 Figure 41), and turbo pump vacuum system components (Table 23 Figure...
Page 241 Parts Standard foreline pump and related parts Table 20 Standard foreline pump and related parts (Figure Item Description Part number Foreline hose assembly (hose and internal spring) 05971-60119 • Hose Clamp used with 05971-60119 1400-3241 Standard foreline pump – 120V – Pfeiffer Duo 2.5 G3170-89025 Standard foreline pump –...
Page 242 Parts Safety cage removed for clarity Figure 40 Foreline pump and related parts Troubleshooting and Maintenance Guide...
Page 243 Parts Dry foreline pump and related parts Table 21 Dry foreline pump and related parts (Figure Description Part number Foreline hose assembly (hose and internal spring) 05971-60119 • Hose Clamp used with 05971-60119 1400-3241 Dry foreline pump G3170-80028 Dry foreline pump (exchange) G3170-89028 Foreline pump inlet seal (KF10/16) 0905-1463...
Page 244 Parts Foreline hose assembly Hose clamp Dry pump Figure 41 Dry foreline pump and related parts Table 22 IDP3 Dry pump and related parts (Figure Description Part number NW16 Inlet trap with HEPA filter insert SCRINTRPNW16 Replacement HEPA filter element (NW16) REPLHEPAFILTER2 Exhaust silencer kit for IDP Series EXSLRIDP3...
Page 245 Parts Table 22 IDP3 Dry pump and related parts (Figure 42) (continued) Description Part number Rebuilt foreline pump - 120V G3170-89025 Rebuilt foreline pump - 220V G3170-89026 Rebuilt foreline pump - 200V - Pfeiffer Japanese G3170-89024 Rebuilt dry “oil-less” pump G3170-89028 Dry scroll pump, IDP3 220v G3170-80036...
Page 246 Parts * Hose clamps are interchangeable, but gives an optimum fit if they are matched. Foreline hose assembly IDP3 Dry pump Figure 42 IDP3 Dry pump and related parts Turbo pump and related parts Table 23 Turbo pump MSD vacuum system components (Figure 43)...
Page 247 Parts Table 23 Turbo pump MSD vacuum system components (Figure 43) (continued) Item Description Part number Turbo power supply only G3170-60600 Turbo separate power supply-control wiring harness G3170-60835 Analyzer chamber (manifold) G3170-20560 Manifold EMC gasket G3170-80031 Figure 43 Turbo pump and related parts Troubleshooting and Maintenance Guide...
Page 248: Analyzer
Parts Analyzer Table 24 Figure 44 show the analyzer chamber and associated parts. Table 24 Analyzer chamber and related parts (Figure Item Description Part number Shield/plate for ion gauge port G3170-00003 Micro-Ion Vacuum Gauge Baffle G3170-00015 • M3X12 TX T10 PN SQ Cone SS (qty 2) 0515-0664 EI Calibration valve assembly...
Page 249 Parts Table 25 Figure 45 show the replacement parts for the analyzer. Analyzer screws (Table 26) and the individual ion source parts (Table 27) are listed in the tables that follow. Table 25 Analyzer parts (Figure Item Description Part number ...
Page 250 Parts Table 25 Analyzer parts (Figure 45) (continued) Item Description Part number RFPA fan assembly G3170-60023 Quad Stops (need 2) G3170-20023 7 (under clips) Figure 45 Analyzer parts Troubleshooting and Maintenance Guide...
Page 251 Parts Table 26 Analyzer screws Description Part number Heater/Sensor (quad) setscrew 0515-1446 Ion source thumbscrew G1099-20138 Magnet mounting screws 0515-1046 Screw – magnet bracket to source radiator 0515-1602 Screws – source radiator and detector to quad G3170-20123 radiator Screws – mass filter contact assembly/heater block G3170-20122 Screws –...
Page 252 Parts EI source Table 27 lists the parts for the EI source suitable for the 5975T. Inert parts are the default parts for this product, they may not be interchanged. Table 27 EI ion source (Figure Description Part number Ion source, new Turbo - inert G3170-65760 Ion source, rebuilt...
Page 253 Parts Figure 46 EI source Repeller assembly Table 28 Repeller assembly Description Part number EI 350 Anodized Repeller assembly G3170-60172 Inert EI 350 Anodized Repeller assembly G3170-60171 Insulator (2 required) G1099-20133 Nut, 5.5-mm 0535-0071 Repeller - Inert G2589-20044 Troubleshooting and Maintenance Guide...
Page 254 Parts Table 28 Repeller assembly (continued) Description Part number Repeller - Stainless Steel G1099-20132 Setscrew 0515-1446 Anodized Source Heater Assembly G3169-60177 Washer for repeller 3050-0891 Heater sensor assembly Table 29 Heater sensor block assembly Description Part number EI 350 Anodized Source Heater Assembly G3170-60180 Inert EI 350 Anodized Source Heater Assembly G3170-60177...
Page 255: Ei Gc/Msd Interface
Parts EI GC/MSD Interface Table 30 lists the replacement parts related to the EI GC/MSD interface. Table 30 EI GC/MSD interface Description Part number GC/MSD interface (complete) G1099-60300 Interface 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...
Page 256: Ltm System
Parts LTM System Table 32 Split/Splitless inlet Description Part number 5975T S/SL-EPC INJ 0-100 PSIG G4360-67600 5975T S/SL weldment tubing + bulkhead+nut+ferrule G4360-67730 5975T S/SL weldment assembly with standard liner G4360-67530 5975T Inlet bulkhead G4360-67540 5975T 1/8-inch bulkhead union, 316 SST G4360-67133 5975T Inj fan assembly G4360-67320...
Page 257 Parts Table 35 LTM module parts Description Part number CPM union, Inert G3182-60580 5975T Column module fan assembly G3900-60019 Troubleshooting and Maintenance Guide...
Page 258: Automatic Liquid Sampler
Parts Automatic Liquid Sampler Table 36 7693 Automatic Liquid Sampler Description Part number ALS tower G4513-64000 Syringe, 10 µL 23/26 ga, GT, FN, Taper 5181-3354 Spot Hi-Density turret G4513-40532 ALS main cable assembly G4514-60610 ALS consumables and supplies Vial kit 07673-80090 Diffusion caps for 4 mL vials, 12/pk 07673-40180...
Page 259: Reusable Shipping Containers
Parts Reusable Shipping Containers Table 37 Reusable shipping container parts Description Part number 5975T Metal strap kit, (2/pk) G3880-80018 5975T Reusable container package base G3880-80019 Figure 47 Reusable shipping container Troubleshooting and Maintenance Guide...
Page 260: Consumables And Maintenance Supplies
Parts Consumables and Maintenance Supplies This section (Tables through 46) lists parts available for cleaning and maintaining your MSD. Table 38 Maintenance supplies Description Part number Abrasive paper, 30 µm 5061-5896 Alumina powder, 1 kg 8660-0791 Cloths, clean (qty 300) 05980-60051 Cloths, cleaning (qty 300) 9310-4828...
Page 261 Parts Table 39 GC consumables (continued) Description Part number Internal nut for micro fluidic products G2855-20530 SS wire 0.015-inch Dia × 40 mm 10/pk G2855-60593 Magnifier, 3x, 6x, paddle, plastic G2855-40001 Column storage fitting G2855-20590 Table 40 Frequently used item Description Part number Button, syringe plunger...
Page 262 Parts Table 41 Tools (continued) Description Part number Swagelock tool for SilTite ferrules G2855-60200 GC module shipping kit G3880-60585 MSD shipping kits G3170-60501 5975T Mainframe shipping kit G3880-68501 Tweezers, non-magnetic 8710-0907 Wrenches, open-end 1/4-inch x 5/16-inch 8710-0510 Wrenches, open-end 10-mm 8710-2353 Wrist strap, antistatic, small 9300-0969...
Page 263 Parts Table 41 Tools (continued) Description Part number Cleaning brushes—The FID cleaning kit (9301-0985) contains appropriate brushes for cleaning inlets Cleaning brushes—(8710-1346) For cleaning split/splitless inlet split vent fitting Jet cleaning wire (.010 inch) Small ultrasonic cleaning bath with aqueous detergent (for cleaning inlet parts) Gloves, clean, lint-free, nylon (for handling 8650-0030 (large)...
Page 264 Parts Table 42 GC Column modules Col Module/Col Toroid  Column module  Toroid  Description Part number Part number HP-5msUI 30m,.25mm,.25µm G3900-63001 19091S-433UILTM DB-1 30m, 0.25mm, 0.25µm G3900-63002 122-0132LTM DB-1701 30m,.25mm,.25µm G3900-63003 122-0732ELTM DB-5ms 30m,0.25mm,0.25µm G3900-63004 122-5532LTM DB-5msUI 30m,.25mm,.25µm G3900-63005 122-5532UILTM DB-VRX 20m,0.18mm,1.0µm...
Page 265 Parts Table 42 GC Column modules (continued) Col Module/Col Toroid  Column module  Toroid  Description Part number Part number DB-5ms 15m,0.25mm,0.25µm G3900-63030 222-5512LTM DB-5msUI 15m,.25mm,.25µm G3900-63031 222-5512UILTM DB-5ht 15m,0.25mm,0.10µm G3900-63032 222-5711LTM DB-5ht 30m,0.25mm,0.10µm G3900-63033 222-5731LTM DB-WAX 15m,0.25mm,0.50µm G3900-63034 222-7013LTM DB-WAX 30m,0.25mm,0.50µm G3900-63035...
Page 266 Parts Table 43 Ferrules Description Part number For the GC/MSD interface • Blank, graphite-vespel 5181-3308 • 0.3-mm id, 85%/15% for 0.10-mm id columns 5062-3507 • 0.4-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 For the GC inlet •...
Page 267 Parts Table 44 Nuts, ferrules, and hardware for capillary columns to inlet (continued) Column id (mm) Description Typical use Part number/quantity Ferrule, Vespel/graphite, 0.1-mm, 0.2-mm, and 0.25-mm 5181-3323 (10/pk) 0.4-mm id capillary columns Ferrule, graphite, 0.5-mm id 0.1-mm, 0.2-mm, 0.25-mm, and 5080-8853 (10/pk) 0.32-mm capillary columns Column nut, finger-tight (for...
Page 268 Parts Table 46 Miscellaneous parts and samples Description Part number EM Horn G3170-80103 Filament assembly (High temperature EI for GCMS) G3170-60050 Foreline pump oil (1 liter), P3 6040-0621 Foreline exhaust oil mist trap G1099-80039 Heater/Sensor GC/MSD interface G1099-60107 Benzopheone 100 pg/µL 8500-5440 Octafluoronaphthalene, OFN, 1pg/µL 5188-5348...
Page 269 Parts Table 47 5975T Mainframe shipping kit (G3880-68501) Description Part number SilTite ferrules,0.1-0.25 mm column,10 pk 5188-5361 Ferrule Pre-Swage tool, capillary flow G2855-60200 FS, deactivated -.250mm × 1m 160-2255-1 Internal nut for micro fluidic products G2855-20530 Column installation tool for 5975T G3880-20030 SilTite nut G2855-20555...
Page 270 Parts Table 48 5975T GC module shipping kit (G3880-60585) (continued) Description Part number Tool, wrench 1/4 inch to 5/16 inch 8710-0510 Wrench G3452-20512 Troubleshooting and Maintenance Guide...

Agilent Technologies 5975T LTM GC/MSD Troubleshooting And Maintenance Manual

1 Introduction

2 Concepts and General Tasks

4 Not Ready Symptoms

5 ALS Symptoms

6 Shutdown Symptoms

7 Instrument Power on and Communication Symptoms

8 Checking for Leaks

9 Troubleshooting Tasks

10 General Maintenance

11 Maintaining the Split/Splitless Inlet

12 Vacuum System

13 Analyzer

14 Electronics

15 Parts

Quick Links

Troubleshooting

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Summary of Contents for Agilent Technologies 5975T LTM GC/MSD