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Summary of Contents for leco Pegasus BT GC/MS
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Vouersweg 118 Phone: 269-983-5531 · Fax: 269-983-3850 6161 AG Geleen info@leco.com · www.leco.com (P.O. Box 1174 - 6160 BD Geleen) ISO-9001:2015 Q-994 The Netherlands Phone: 31-46-4747473 · Fax: 31-46-4747333 info_nl@leco.com www.nl.leco-europe.com LECO is a registered trademark of LECO Corporation. Original Instructions...
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Safety Symbols These symbols may be found on LECO equipment or their components. Some of the symbols shown may not appear in this manual. These symbols indicate the use of specific safety guidelines. Important safety information is highlighted in this manual by one of the following symbols, as well as by WARNING and CAUTION statements.
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ROTATING FAN BLADES EXPLOSIVE FLAMMABLE OXIDIZING COMPRESSED GAS CORROSIVE TOXIC HARMFUL HEALTH HAZARD ENVIRONMENTAL HAZARD PROTECTIVE GLOVES PROTECTIVE EYEWEAR EAR PROTECTION NOT ALLOWED...
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This instrument should be operated only by technically qualified and trained individuals who have fully read and understood these instructions. It is highly recommended that users attend training courses provided by LECO Corp. prior to operating this equipment.
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SOUND PRESSURE LEVELS Most LECO instruments produce sound pressure levels far below 70 dB(A) and generally do not require ear protection to be worn by the operator in most laboratory environments. The sound pressure levels on some LECO instruments, such as saws,...
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INSTRUMENTS WITH GLASS TUBES RISK OF INJURY Wear protective gloves and eye protection whenever handling glass tubes to prevent injury. Other Personal Protection Equipment (PPE) may also be required. RISK OF SEVERE BURNS Glass tubes used with reduction and catalyst heaters may be hot. The materials inside these tubes may also be hot.
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All external elements (pipes, hoses, pop-offs, regulators, gas bottles [tanks], receivers, valves, etc.) must be properly rated for the pressures available in both a normal and a fault condition. All external elements must be properly rated for the type of gas, fluid, and/or materials the system is supplying or venting.
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Illustrations Figure 2-1 End View of Plug: NEMA 6-15P (15A) ........2–5 Table 2-1 Power Requirements and Receptacles ........2–6 Figure 2-2 Agilent 7890/8890 Wiring Diagram ........2–7 Table 2-2 Permissible Carrier Gas Contaminant Levels ......2–13 Figure 2-3 Roughing Pump Power Receptacle ........2–17 Figure 3-1 Agilent 7693A Autosampler Overview ........
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Figure 3-35 Suggested Exchange Position ........... 3–32 Figure 3-36 Tool Holder Lock ............. 3–33 Figure 3-37 Syringe Type Information ..........3–34 Figure 3-38 Unlocking Plunger ............3–35 Figure 3-39 Removing Tool from PALhead ........... 3–35 Figure 3-40 Locking Agitator Lid Open ..........3–37 Figure 3-41 Agitator Teaching Tool .............
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Figure 3-79 Secondary Oven and Modulator Reinstalled ......3–66 Figure 3-80 Quick Disconnect Fittings on Cold Jet Arm ......3–67 Figure 3-81 Harness Tubes Connected to Inlet Ports ......3–67 Figure 3-82 Thermal Bath Fluid Poured into Graduated Cylinder ..... 3–68 Figure 3-83 Funnel Inserted into Tubing ..........
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Figure 3-121 7890 Compressed Air Gas Line Connected ......3–92 Figure 3-122 8890 Compressed Air Gas Line Connected ......3–93 Figure 3-123 Remote Cable Connected ..........3–93 Figure 3-124 Ethernet and Control Cables Connected to Control Box ..3–94 Figure 3-125 Control Box Power Breaker ..........3–94 Figure 4-1 Power System Dialog ............
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Figure 5-3 Chromatogram ..............5–5 Figure 5-4 Mass Spectrum ..............5–6 Figure 5-5 Mass Spectrum Comparison ..........5–6 Figure 5-6 Ions Pulsed from Accelerator ..........5–7 Figure 5-7 Ion Acceleration ..............5–7 Figure 5-8 Ions in Drift Region ............. 5–8 Figure 5-9 Ions Separate According to m/z ..........
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This page intentionally left blank. 1–16 Pegasus ® Introduction...
LECO Corporation. All replacement parts shall be covered under warranty for a period of thirty days from date of purchase. LECO makes no other representation or warranty of any other kind, expressed or implied, with respect to the goods sold hereunder, whether as to merchantability, fitness for purpose, or otherwise.
Separate collection and treatment of WEEE will thus decrease CO emissions as well. For the above reasons, LECO expects end users to dispose of the material in an environmentally friendly way, being separate collection and treatment. Electrical and Electronic Equipment is labeled with the following “crossed-out wheeled bin”...
LECO-supplied HP Computers ensures that any computer-related service issues are handled directly by the experts at HP. This eliminates the unnecessary step of working through the LECO service professionals for a resolution from HP. For more information, call 1-866-625-1175, or access the HP website...
Declaration of Conformity Statement European Union Directives - CE Marking This equipment, which bears the CE Marking, complies with all the applicable requirements set out in the EU Directives. The EU Declaration of Conformity (EU-DoC) for this instrument is available upon request. The following information sets out the content of the EU-DoC, including a list of EU Directives, harmonized standards, supporting standards and other applicable documents.
Product Safety The equipment is also designed and manufactured to meet the following product safety requirements. International IEC 61010-1 Safety requirements for electrical equipment for measurement, control, and laboratory use UL 61010-1 Safety requirements for electrical equipment for measurement, control, and laboratory use. Canada CAN/CSA-C22.2 No.
Properly shielded and grounded cables and connectors must be used in order to meet FCC emission limits. LECO Corporation is not responsible for any radio or television interference caused by using other than recommended cables and connectors or by unauthorized changes or modifications to this equipment.
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Australia & New Zealand Attention: This is a CISPR 11 Class A product. In a domestic environment, this product may cause radio interference, in which case the user may be required to take adequate measures. Introduction Pegasus ® 1–27...
Radio-Frequency Disturbance This product complies with IEC/EN 55011/CISPR11 Radio- frequency disturbance characteristics of industrial, scientific and medical equipment (ISM), which requires the following information to be provided within the User Documentation: The use of Interconnecting Cables other than those provided and/or specified may cause undesired electromagnetic compatibility performance.
Flicker and Harmonic Emissions To reduce the chance of voltage fluctuations, flicker emissions, or harmonic emissions, it is recommended that this equipment be connected to a private low-voltage distribution system. If connected to a public low-voltage distribution system, a minimum facility service current capacity of 100 amps is required.
Chapter 6, Diagnostics, page 6–1, describes how to monitor the instrument to ensure proper operation. Chapter 7, Service, page 7–1, describes service procedures. Contact the LECO Service Department for additional information. Chapter 8, Illustrations, page 8–1, provides illustrations and photographs that can assist with procedures and location of parts.
Accessing the Manual The instruction manual is available in Adobe ® Portable Document Format (PDF). To access the manual, press the F1 key, or select Help on the Menu Bar and then select Help F1. Tips for Navigating the Electronic Manual The features available in Adobe Acrobat ®...
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Using Previous and Next Arrows Use the view arrows located on the toolbar to toggle between views in the document once more than one page of the document has been viewed. Select to return to the previous view, or select to go to the next view.
*Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT2LIQ24 PKG PEGASUS BT2 GC/MS LIQ MMI-CO2 PC 230V 614-700-300...
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*Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT2LIQ32 PKG PEGASUS BT2 GC/MS LIQ SSL IF PC 230V...
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*Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT2AI24 PKG PEGASUS BT2 GC/MS 7693A MMI-CO2 PC 230V 614-700-300...
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*Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT2AI32 PKG PEGASUS BT2 GC/MS 7693A SSL IF PC 230V...
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*Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT2IT24 PKG PEGASUS BT2 GC/MS 7693A/TRAY MMI-CO2 PC 230V 614-700-300...
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*Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT2IT32 PKG PEGASUS BT2 GC/MS 7693A/TRAY SSL IF PC 230V...
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*Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT224 PKG PEGASUS BT2 GC/MS MMI-CO2 PC NO A-SMPLR/INJ 614-700-300...
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*Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT232 PKG PEGASUS BT2 GC/MS SSL IF PC NO A-SMPLR/INJ...
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*Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT2889032 PKG PEGASUS BT2 GC/MS 8890 SSL /IF PC 230V...
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*Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT2AI889032 PKG PEGASUS BT2 GC/MS AUTO INJ 8890 SSL/IF PC 230V...
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*Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT2LIQS15889037 PKG PEGASUS BT2 GC/MS L-PAL3 LIQ 8890 SSL/IF PC...
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709-813-876 SYRINGE 5UL 709-813-877 FERRULE GRAPHITE 709-813-878 SEAL GOLD INLET RING VESPEL DUAL 709-813-879 FILTER REPLACEMENT KIT HE SC GAS 709-813-880 PURIFIER GAS INLINE DISPOSABLE 709-813-881 SYRINGE AUTOSAMPLER 10UL 709-813-882 CARTRIDGE TRAP VENT SPLIT 709-813-883 VIAL HS SCREW CAP 20ML CLEAR 709-813-884 VIAL HS SCREW CAP 10ML CLEAR 709-813-885...
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709-802-267 KIT UPGRADE VENT VALVE PEG BT 709-802-269 KIT UPGRADE FLANGE TRANSFER LINE PEG BT 709-813-865 ASSEMBLY WIRE REPLACEMENT BT1 PUSH 259-103 SOFTWARE KIT CHROMATOF 5 ADMINISTRATOR TOOL 709-814-201 TRANSFORMER BUCK-BOOST 709-814-306 COLUMN RXI-624SIL MS 30M X 0.25MM ID 1.4UM 709-814-307 COLUMN STABILWAX 2M X 0.25MMX 0.50UM 709-814-401...
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502-886-HAZ* STD OFN 5PG/UL IN ISOOCTANE *Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. 1–48 Pegasus ® Introduction...
STD GROB CAPILLARY TEST MIX *Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DLN25D PKG PEGASUS BT AND 4D LN2-7890-MMI-LN2 DOM 259-090...
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STD GROB CAPILLARY TEST MIX *Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DLN35D PKG PEGASUS BT AND 4D LN2-7890-SSL-IF/PTV-LN DOM 259-090...
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STD GROB CAPILLARY TEST MIX *Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DLN24I PKG PEGASUS BT AND 4D LN2-7890-MMI-CO2 INTL 259-090...
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STD GROB CAPILLARY TEST MIX *Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DLN32I PKG PEGASUS BT AND 4D LN2-7890-SSL-IF INTL 259-090...
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STD GROB CAPILLARY TEST MIX *Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DLN37I PKG PEGASUS BT AND 4D LN2-7890-SSL-IF/MMI-LN2 INTL 259-090...
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STD GROB CAPILLARY TEST MIX *Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DCF25D PKG PEGASUS BT AND 4D CF-7890-MMI-LN2 DOM 259-090...
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STD GROB CAPILLARY TEST MIX *Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DCF35D PKG PEGASUS BT AND 4D CF-7890-SSL-IF/PTV-LN DOM 259-090...
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STD GROB CAPILLARY TEST MIX *Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DCF24I PKG PEGASUS BT AND 4D CF-7890-MMI-CO2 INTL 259-090...
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STD GROB CAPILLARY TEST MIX *Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DCF32I PKG PEGASUS BT AND 4D CF-7890-SSL-IF INTL 259-090...
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STD GROB CAPILLARY TEST MIX *Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DCF37I PKG PEGASUS BT AND 4D CF-7890-SSL-IF/MMI-LN INTL 259-090...
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*Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DITLN24D PKG PEGASUS BT AND 4D INJ/TRAY LN2-7890-MMI-CO2 DOM 259-090...
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*Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DITLN25D PKG PEGASUS BT AND 4D INJ/TRAY LN2-7890-MMI-LN2 DOM 259-090...
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*Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DITLN32D PKG PEGASUS BT AND 4D INJ/TRAY LN2-7890-SSL-IF DOM 259-090...
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*Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DITLN35D PKG PEGASUS BT AND 4D INJ/TRAY LN2-7890-SSL-IF/PTV- LN DOM...
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*Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DITLN37D PKG PEGASUS BT AND 4D INJ/TRAY LN2-7890-SSL-IF/MMI- LN DOM...
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*Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DITCF24D PKG PEGASUS BT AND 4D INJ/TRAY CF-7890-MMI-CO2 DOM 259-090...
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*Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DITCF25D PKG PEGASUS BT AND 4D INJ/TRAY CF-7890-MMI-LN2 DOM 259-090...
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*Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DITCF32D PKG PEGASUS BT AND 4D INJ/TRAY CF-7890-SSL-IF DOM 259-090...
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AUTO SAMPLER L-PAL3 LIQ INJ *Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DITCF35D PKG PEGASUS BT AND 4D INJ/TRAY CF-7890-SSL-IF/PTV-LN 259-090...
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AUTO SAMPLER L-PAL3 LIQ INJ *Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DITCF37D PKG PEGASUS BT AND 4D INJ/TRAY CF-7890-SSL-IF/MMI-LN 259-090...
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*Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DITLN24I PKG PEGASUS BT AND 4D INJ/TRAY LN2-7890-MMI-CO2 INTL 259-090...
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*Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DITLN25I PKG PEGASUS BT AND 4D INJ/TRAY LN2-7890-MMI-LN2 INTL 259-090...
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*Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DITLN32I PKG PEGASUS BT AND 4D INJ/TRAY LN2-7890-SSL-IF INTL 259-090...
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*Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DITLN35I PKG PEGASUS BT AND 4D INJ/TRAY LN2-7890-SSL-IF/PTV- LN INTL...
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*Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DITLN37I PKG PEGASUS BT AND 4D INJ/TRAY LN2-7890-SSL-IF/MMI- LN INTL...
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*Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DITCF24I PKG PEGASUS BT AND 4D INJ/TRAY CF-7890-MMI-CO2 INTL 259-090...
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*Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DITCF25I PKG PEGASUS BT AND 4D INJ/TRAY CF-7890-MMI-LN2 INTL 259-090...
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*Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DITCF32I PKG PEGASUS BT AND 4D INJ/TRAY CF-7890-SSL-IF INTL 259-090...
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AUTO SAMPLER L-PAL3 LIQ INJ *Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DITCF35I PKG PEGASUS BT AND 4D INJ/TRAY CF-7890-SSL-IF/PTV-LN INTL...
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AUTO SAMPLER L-PAL3 LIQ INJ *Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DITCF37I PKG PEGASUS BT AND 4D INJ/TRAY CF-7890-SSL-IF/MMI-LN INTL...
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STD GROB CAPILLARY TEST MIX *Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DFM32 PKG PEGASUS BT4D W/FM SSL IF GCXGC 259-090...
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STD GROB CAPILLARY TEST MIX *Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DFM889032 PKG PEGASUS BT4D W/FLOW MODULATOR 8890 SSL/IF 259-090...
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*Packed and shipped separately in the U.S.A. Not included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DCFADDON PKG ADD ON PEG BT4D W/CF AND UPGRADE KIT...
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*Packed and shipped separately in the U.S.A. Nots included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DLN889032D PKG PEGASUS BT AND 4D LN2-8890 SSL IF DOM...
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*Packed and shipped separately in the U.S.A. Nots included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DLN889032I PKG PEGASUS BT AND 4D LN2-8890 SSL IF INTL...
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ASSY GC 8890 LN SSL IF/MMI-LN2 GCXGC *Packed and shipped separately in the U.S.A. Nots included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DCF889032D PKG PEGASUS BT AND 4D CF-8890-SSL-IF DOM 259-090...
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ASSY GC 8890 CF SSL IF/MMI-LN2 GCXGC *Packed and shipped separately in the U.S.A. Nots included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DCF889032I PKG PEGASUS BT AND 4D CF-8890-SSL-IF INTL 259-090...
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*Packed and shipped separately in the U.S.A. Nots included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DLIQS15LN889032D PKG PEGASUS BT AND 4D LPAL3 LIQ LN2-8890- SSL-IF DOM...
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*Packed and shipped separately in the U.S.A. Nots included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DLIQS15LN889032I PKG PEGASUS BT AND 4D LPAL3 LIQ LN2-8890- SSL-IF INTL...
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*Packed and shipped separately in the U.S.A. Nots included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DLIQS15CF889032D PKG PEGASUS BT AND 4D LPAL3 LIQ CF-8890-SSL- IF DOM...
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*Packed and shipped separately in the U.S.A. Nots included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DLIQS15CF889032I PKG PEGASUS BT AND 4D LPAL3-LIQ CF-8890-SSL- IF INTL...
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*Packed and shipped separately in the U.S.A. Nots included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. BT4DSPMES15LN889032D PKG PEGASUS BT AND 4D LPAL3 SPME LN2-8890- SSL-IF DOM...
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AUTO SAMPLER L-PAL3-S15 SPME HS LIQ INJ L-PAL3-SPME-110 KIT CONSUMABLES L-PAL3-SPME *Packed and shipped separately in the U.S.A. Nots included with international shipments due to shipping regulations. These items are essential for operation. Contact your LECO distributor for quotation and delivery. 1–92 Pegasus ® Introduction...
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Options for the Pegasus BT 4D Refer to Options, page 1–44. Introduction Pegasus ® 1–93...
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Components for the Pegasus BT 4D 614-720-071 PACK COMPONENT INSTALLATION PEGASUS BT 200-999-017 MANUAL INSTR PEGASUS BT 200-999-025 MANUAL INSTR HRT CHROMATOF SOFTWARE 203-505-548 FORM PEGASUS BT INSTALLATION CHECKLIST 502-233 ALUMINA A PELLETS 1LB 502-349 SAMPLE CAL PFTBA MS 35G 603-433 O-RING 109 .299X .485X.093V 607-064...
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709-813-906 PACK COMPONENT PEG BT 4D FLOW MODULATOR 621-605-748 WRENCH OPEN END 3/16 X 1/4 ST CP 709-813-799 NUT INTERNAL STD .0312 SST 709-813-678 COLUMN CONNECTING TUBE 709-813-797 FTG NUT/FERRULE SST FUSED SILICA TUBING 709-813-798 FERRULE ZERO VOLUME 1/32 TUBING 709-813-832 FERRULE .125 - .0625 TFE 709-813-853...
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This page intentionally left blank. 1–96 Pegasus ® Introduction...
Installation The Installation chapter lists step-by-step instructions on the preparation and requirements necessary for installation of the Pegasus ® BT. For software setup and configuration, refer to the ChromaTOF ® Brand Software Manual. For additional details, refer to the Pegasus BT Pre-installation Guide included with the instrument. HAZARDOUS VOLTAGE WARNING During installation and operation of this instrument, the On/Off switch must be easily accessible.
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Gas Chromatograph ............2–14 Instrument ..............2–14 Tubing ................ 2–14 Gas Cylinders .............. 2–14 General ................2–15 Installing the Rough Vacuum System ..........2–16 Installing the Calibration Gas Vial ..........2–18 Installing the Desktop Computer ........... 2–19 Installing the Agilent 7890/8890/8860 GC ........2–23 Installing and Preparing GC Accessories for Operation .....
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Illustrations Figure 2-1 End View of Plug: NEMA 6-15P (15A) ........2–5 Table 2-1 Power Requirements and Receptacles ........2–6 Figure 2-2 Agilent 7890/8890 Wiring Diagram ........2–7 Table 2-2 Permissible Carrier Gas Contaminant Levels ......2–13 Figure 2-3 Roughing Pump Power Receptacle ........2–17 Installation Pegasus ®...
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This page intentionally left blank. 2–4 Pegasus ® Installation...
The quality of the electrical power will determine how efficiently your system operates. All electrical power must be stable: both short- and long-term. LECO does not recommend the use of a power conditioner. Provided: Mass spectrometer plug: NEMA 6-15P 2 Pole, 3-wire grounding...
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Minimum Requirements for North America One dedicated 230 V, 15 A circuit for the Pegasus BT. Sufficient 115 VAC, 15 A receptacles based on Table 2-1, following. One dedicated circuit for the Agilent 7890/8890 GC with fast-heating option (requires 240 V ±10%, 15 A). Receptacles –...
CAUTION The final installation of the Pegasus BT 4D should be performed only by a LECO employee. The customer is responsible only for transport from shipping docks/delivery locale to a placement that is near to its final positioning in the laboratory.
Unpacking the Pegasus BT 4D GC/MS system CAUTION If no shipping damage is reported and/or any of the shipping containers are open, LECO is not responsible for any shortages. The Field Service Engineer unpacks and inventories all components at the time of installation.
Gas Connections FLAMMABLE/HEALTH HAZARD/HARMFUL PROTECTIVE GLOVES/PROTECTIVE EYEWEAR Hydrogen is commonly used as a carrier gas in GCs and associated equipment. Hydrogen accumulations, or leaks in GCs and any associated equipment, can potentially be explosive and dangerous, and hydrogen should be used only as a carrier gas in accordance with all applicable installation, maintenance, and use instructions.
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Coolant Supply COMPRESSED GAS/PROTECTIVE EYEWEAR/PROTECTIVE GLOVES Liquid nitrogen is a refrigerated gas and may cause cryogenic burns or frostbite. Eye protection and gloves that insulate against cold temperatures must be worn when handling liquid nitrogen. Refer to the Safety Data Sheet (SDS) for additional information.
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Gaseous Nitrogen (N ) generators may be used in place of tanks, but only if they meet the following criteria: Able to generate 30 lpm if connected only to cold jets (separate gases supplied to hot/cold jets). This configuration is recommended if a generator is to be used with the Pegasus BT 4D system.
< 1.0 ppm Total Hydrocarbons < 1.0 ppm Table 2-2 Permissible Carrier Gas Contaminant Levels LECO recommends using trapping filters for oxygen, water, and hydrocarbons on the carrier gas stream and indicating filters downstream of the main filter. Installation Pegasus ®...
Secure pressurized gas cylinders during transportation and use. Remove the gas cylinder regulators and reinstall the protective metal cap during transportation or when not in use. LECO recommends marking gas cylinders partially full as “In Use,” including a remaining pressure and date of last use.
Injector split ratio Column operating temperature General At installation, be prepared and have the following ready: Regulators Filters Fittings Tubing Pneumatic connection components Some fittings and tubing may be provided with the GC startup kit. Consult with the gas chromatograph manufacturer’s Field Service Engineer for specific information.
Installing the Rough Vacuum System CAUTION It is strongly recommended to connect the exhaust ports of the roughing pump to outside ventilation (for example: hood or forced air intake). Regardless of the nature of the samples analyzed, long-term exposure to oil vapors or organic solvents normally used in gas chromatography may cause adverse health effects.
Connect the other open end of the SS vacuum tubing to the inlet of the roughing pump using a NW16 o-ring and clamp. Attach the oil mist filter to the roughing pump exhausts using a NW25 centering o-ring and clamp. 10.
Installing the Calibration Gas Vial HARMFUL/PROTECTIVE EYEWEAR/PROTECTIVE GLOVES PFTBA is a skin and eye irritant and may cause respiratory irritation. Refer to the Safety Data Sheet (SDS) for additional information. CAUTION Do not remove the PFTBA vials without venting the source or turbo pump damage may result.
Installing the Desktop Computer Place the computer tower at its station, near the Pegasus BT 4D. Place the monitor(s) (Dual display is optional) on top of the station. Plug the HDMI and power cord(s) into their respective monitor(s). Plug the other end of the HDMI cord(s) into the display port(s) on the back of the computer tower.
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Select Change Adapter Options. 13. Right-click on LECO Hardware and select Properties. The LECO Hardware Status dialogue box launches. 2–20 Pegasus ® Installation...
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14. On the LECO Hardware Properties window, select Internet Protocol Version 4 (TCP/IPv4). 15. Select Properties. The TCP/IP properties screen appears. Installation Pegasus ® 2–21...
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16. Select Use the Following IP Address. 17. Enter the IP address as 10.10.10.2. 18. Enter the Subnet Mask as 255.255.255.0. 19. Leave the Default Gateway, Preferred DNS Server, and Alternate DNS Server blank. 20. Select OK. 21. Select OK again to save the settings. 2–22 Pegasus ®...
Installing the Agilent 7890/8890/8860 GC Attach grip tape to the bottom of the GC tray in all four corners (to keep the tray from sliding on the bench). Make sure the lever used to release the slide tray is facing forward toward the user.
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18. Enter the network configuration by completing the following steps for the applicable GC. For the Agilent 7890 GC Only: Power On the GC, and confirm that it passes a self-test. Enter the network configuration on the Agilent GC by completing the following steps.
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From the Home screen, select Settings. From the Settings menu, select Service Mode: Installation Pegasus ® 2–25...
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Select MSD, and then make the following selections. Select the checkbox next to Configured. Under Type, select Other from the drop-down menu. Select Apply. Exit the web browser. The GC column may be installed in the inlet of the GC and conditioned before the instrument is ready for vacuum system checkout.
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Installing and Preparing GC Accessories for Operation If available, install the tray and the auto-injector tower on the top of the GC. Refer to Installing the Agilent 7693A Automatic Liquid Sampler, page 3–7. If an L-PAL3 auto sampler is included, install the auto sampler as described in Installing the L-PAL3 Automated Sample Injector,...
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17. Tighten the ferrule so that there is enough play in the column to adjust its length, while not sliding inside the transfer line inadvertently. 18. Install the column into the transfer line, being careful not to create sharp bends in the column. 19.
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For the Agilent 7890 GC, 8860 GC, and 8890 GC: CAUTION When feeding the column through the oven wall, mount the column on the hanger, so that the column does not touch the sides or floor of GC oven. 25. Slide the GC left into place while feeding the column through the oven wall.
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Installing the L-PAL3-LIQ PALhead ........3–18 Installing the L-PAL3-HS and SPME PALhead ......3–20 Installing the L-PAL3-ATX PALhead ........3–22 Connecting Modules ..............3–24 Installing the Purge Gas Pressure Regulator ......3–25 Installing the Purge Gas Line ........... 3–27 Installing the PALterminal and Guard Bracket ......3–28 Module Position Teaching .............
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Illustrations Figure 3-1 Agilent 7693A Autosampler Overview ........3–7 Figure 3-2 L-PAL3 Overview with Tray Configuration ....... 3–8 Table 3-1 L-PAL3 Configuration Names ..........3–8 Figure 3-3 Bolt Locations on 7890/8860/8890 ........3–14 Figure 3-4 Right Side Panel Front Bolt on 7890 ........3–14 Figure 3-5 Inlet Arm Mount ...............
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Figure 3-40 Locking Agitator Lid Open ..........3–37 Figure 3-41 Agitator Teaching Tool ............. 3–37 Figure 3-42 Modulation System Installation Locations on 7890 GC ..3–45 Figure 3-43 Modulation System Installation Locations on 8890 GC ..3–45 Figure 3-46 Control Cable Installed to 7890 Control Box ....... 3–47 Figure 3-47 Control Cable Installed to 8890 Control Box .......
Installing the Agilent 7693A Automatic Liquid Sampler The following section explains how to install the Agilent 7693A Automatic Liquid Sampler. Refer to Figure 3-1, following, when completing the following steps. Figure 3-1 Agilent 7693A Autosampler Overview Install the tray and auto-injector tower on the top of the GC, if available.
Installing the L-PAL3 Automated Sample Injector The following section explains how to install the L-PAL3 Automated Sample Injector. Figure 3-2 L-PAL3 Overview with Tray Configuration CTC Name L-PAL3 L-PAL3 Series 1.5 PAL RTC L-PAL3-ATX L-PAL3-S15-ATX PAL RSI (Liquid and L-PAL3-HS L-PAL3-S15-HS Headspace Only) PAL RSI (Liquid and SPME...
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L-PAL3 Options L-PAL3 Options (L-PAL3-0OP) 200-999-030 MANUAL INSTR L-PAL3 AUTO SAMPLER 709-809-701 KIT CONTROL PCB REPL FOR ALL L-PAL3 709-809-702 HEAD ATX L-PAL3 REPL W/O COVER 709-809-703 KIT PREVENTIVE MAINTANCE FOR ATX L-PAL3 709-809-704 KIT PREVENTIVE MAINTANCE FOR LIQ L-PAL3 709-809-705 KIT LUBRICATION FOR L-PAL3 W/BRUSH 709-809-706...
L-PAL3 Options (L-PAL3-0OP) 709-809-740 SPME KIT FOR PAL3 SYSTEM 709-809-760 TRAY HOLDER FOR MTP/DW PLATE/SAMPLE RACK L-PAL3 709-809-761 KIT ADD DYNAMIC HEAD SPACE ITEX TO L-PAL3 709-809-763 MOUNTING KIT FOR 6890/7890 GC SIDE 709-809-764 NEEDLE KIT PAL DLW 51 MM 22GA 3PST W/NUT 709-809-765 TRANSFER TUBING KIT FOR DILUTOR 709-809-773...
Installing the L-PAL3 Legs to the Pegasus BT 4D HAZARDOUS VOLTAGE WARNING Disconnect the instrument from facility power before servicing or removing the GC panel or any guard tool-accessible panel. Turn Off the instrument, and then disconnect it from facility power.
Remove the bolts from the inlet side leg and then use them to attach the foot to the inlet side leg. Refer to Figure 3-5, following. Figure 3-5 Inlet Arm Mount Install the auto sampler legs using the bolts from the L-PAL3 kit (PAL3-KIT-88XX-D).
Figure 3-7 Leg/Foot Assembly Installed Using the provided screwdriver, adjust the paws on the legs until they fit into the x-axis rail. Refer to Figure 3-8, following. Make sure the paws on the legs fit squarely into the x-axis rail before tightening the paw bolts.
System Module Restrictions Install the system modules (wash station, trays, etc.), ensuring the following restrictions are met: Do not install any module within 1 inch (2.5 cm) of either end of the rail. Refer to Figure 3-9, following. Figure 3-9 Module Exclusion Zones ...
Installing the Injection Head The different L-PAL3 systems (ATX, HS and SPME, and LIQ) have different procedures for attaching the injection head. Refer to the following injection head installation procedures for their respective system configuration. Installing the L-PAL3-LIQ PALhead Locate and remove the transport lock on the injection head with a Torx ®...
Using a Torx T25 wrench, securely install the screws attaching the injection head to the y-axis arm. Refer to Figure 3-12, following. Figure 3-12 Installing Injection Head Slide the cover onto the injection head, and secure the cover with the provided Torx T20 bolt. Refer to Figure 3-13, following.
Installing the L-PAL3-HS and SPME PALhead Locate and remove the transport lock on the injection head with a Torx T20 screwdriver. Refer to Figure 3-14, following. Figure 3-14 Removing Transport Lock Save the transport lock in a safe location; if the head is returned for service, the transport lock will need to be reinstalled.
With a Torx T25 screwdriver, securely attach the injection head to the y-axis arm. Refer to Figure 3-16, following. Figure 3-16 Securing Injection Head to Y-Axis Arm Slide the cover onto the injection head, and secure the cover with the provided Torx T20 bolt. Refer to Figure 3-17, following.
Installing the L-PAL3-ATX PALhead Locate and remove the transport lock and plastic spacer on the L-PAL3-ATX injection head with a Torx T10 screwdriver. Refer to Figure 3-18, following. Figure 3-18 Removing Transport Lock Save the transport lock in a safe location; if the head must be returned for service, the transport lock will need to be reinstalled.
With a Torx T25 wrench, securely attach the injection head to the y-axis arm. Refer to Figure 3-20, following. Figure 3-20 Securing Injection Head to Y-Axis Arm Slide the cover straight down onto the injection head. Refer to Figure 3-21, following, for the correct orientation of the injection head during installation.
Secure the cover with the provided Torx T20 bolt. Refer to Figure 3-23, following. Figure 3-22 Securing Injection Head Cover Slide the y-axis arm to both ends of the x-axis rail to make sure there are no obstructions that will interfere with the system in later steps.
Installing the Purge Gas Pressure Regulator If installing an LIQ system: Skip to step 6, page 3–26. If installing an HS, SPME, or ATX system: Attach the purge gas regulator to the x-axis, as displayed in Figure 3-25, following. Figure 3-24 Attaching Purge Gas Regulator to X-Axis Using the provided flat wrenches, tighten, but do not over-tighten, the nut connecting the purge gas pressure regulator...
If installing a SPME system: Remove the plug on the back of the purge gas regulator, and then install the fitting attached to the flow line connected to the SPME fiber conditioning module, ensuring the o-ring is used. Refer to Figure 3-26, following.
Installing the Purge Gas Line If the system has a 1205 mm rail (850 mm is standard), the external gas flush tube must be installed. The gas purge line consists of an inner gas line (a thin, flexible tube) inserted through a supportive outer gas line (a thicker, rigid tube).
Installing the PALterminal and Guard Bracket Install the PALterminal bracket on the end of the Y-Axis arm, as illustrated in Figure 3-29, following, and then place the PALterminal in the bracket. Figure 3-29 Installing PALterminal Bracket Connect the PALterminal cord to the TERMINAL port on the back of the x-axis rail.
Plug in the L-PAL3 power supply and connect it to the POWER port on the x-axis rail. Refer to Figure 3-31, following. Figure 3-31 Power Supply Connected to X-Axis Rail Turn On the power supply. The indicator LED is yellow when the L-PAL3 is waiting, green when the L-PAL3 is ready, and flashing green when the L-PAL3 is running or one of the modules is adjusting to a new setpoint (for example, the agitator is heating up).
Module Position Teaching The following section explains how to teach the positions and configure the settings of the L-PAL3 modules. The following section covers the teaching and settings for most of the available L-PAL3 modules, but not all of them. ...
Select Extended User Level from the menu. A key icon appears on the top bar indicating Extended User Level. Refer to Figure 3-33, following. Figure 3-33 Extended User Level Access Installation Settings On the PALterminal, select Options, then Service, then Installation, then Set Regional Settings.
Calibrating PALdrives 1. On the PALterminal, select Calibrate PALdrives, and then select Calibrate. 2. While the system is calibrating install syringes on all of the tools, ensure the notch cut on the top of the syringe matches the one cut in the tool holder.
Place the syringe holder in the PALhead. If installing an ATX system: On the PALterminal, select Teach PALtool Station; follow the directions on the PALterminal for this setup. This position is where the PALhead will go to exchange tools (LIQ, HS, and SPME) and syringes. If installing a non-ATX system: On the PALterminal, select Teach Exchange Position.
Select Next on the PALterminal; the injection PALhead will connect to the syringe plunger. The syringe type is printed on the syringe barrel and box. Refer to Figure 3-37, following. Select the syringe type. Figure 3-37 Syringe Type Information CAUTION Ensure that the needle guide type matches what is displayed on the PALtool.
Teaching other Tools CAUTION For L-PAL3-ATX systems, all tools must be placed in the tool holder prior to the following steps being performed. If all tools are not present, the rail will not know what tools are to be calibrated. The L-PAL3-ATX system automatically changes tools during the following steps.
CAUTION There must be a syringe in the new tool. Select Next. Manually (by hand) move the tool gently to the reference point. Select Save, and then select Next. 10. Select the syringe type and select the needle guide type. 11.
Teaching PALmodules On the PALterminal, select Teach PALmodules, and then complete the following steps to teach each module. CAUTION It is very important to complete the following steps exactly, ensuring needles do not break in the process. Teaching the Agitator (If Included) Open the lid on the rear of the agitator.
Manually (by hand) move the PALhead gently to the teaching tool. On the PALterminal, select Save. Select Next if no adjustment is needed, or use the controls on the PALterminal to make the final adjustments. Select Next. Remove the teaching tool. Teaching the Back Inlet Manually (by hand) move the PALhead gently to the back inlet.
Teaching the Wash Station Move the PALhead to the wash vial indicated on the PALterminal. On the PALterminal, select Save and, if necessary, use the PALterminal to make the fine adjustments. Select Next. Select OK to move the PALhead back to the home position. Checking PALmodule Teaching On the PALterminal, select Check Teaching PALmodules.
If the PALhead does not move to an acceptable location, reteach the tray location from the main menu. Select Teach PALmodules/Tray Holder 1. Go back and select Select Slot 2/Rack 2, and repeat the steps in Teaching Tray Holder 1, page 3–38. Repeat the previous step for Slot 3/Rack 3.
Select the System Tab. Select Instrument. Select Autosampler. Set the Model selection to LECO L-PAL3. Select the radio button on the left side of the Network. Set the Host Name to “10.10.10.6” and the Host Port to “0.” Option Installation Pegasus ®...
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Select Change adapter options. Right-click on LECO Hardware and select Properties. This launches the LECO Hardware Status dialogue box. 3–42 Pegasus ® Option Installation...
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10. On the LECO Hardware Properties window, select Internet Protocol Version 4 (TCP/IPv4). 11. Select Properties. The TCP/IP properties screen appears. Option Installation Pegasus ® 3–43...
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12. Select Use the Following IP Address. 13. Enter the IP address as 10.10.10.2. 14. Enter the Subnet Mask as 255.255.255.0. 15. Leave the Default Gateway, Preferred DNS Server, and Alternate DNS Server blank. 16. Select OK. 17. Select OK again to save the settings. 3–44 Pegasus ®...
The control box bracket and the dewar bracket anchor displayed in Figure 3-42 (7890) and Figure 3-43 (8890), following, are installed to the instrument at LECO before the customer receives the instrument. Figure 3-42 Modulation System Installation Locations on 7890 GC Figure 3-43...
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Using a Phillips screwdriver, loosen, but do not remove, the two mounting screws and washers on each side of the control box. Refer to Figure 3-44 (7890) and Figure 3-45 (8890), following. Slide the control box onto the GC mounting bracket until the mounting screws slide fully into the slots on the bracket, ensuring the washers and screw heads are positioned on the exterior portion of the bracket.
Route the LECO factory-installed control cable to the control box at the HTR/RTD connection, avoiding the GC oven exhaust path, and then connect the control cable to the control box. Refer to Figure 3-46 (7890) and Figure 3-47 (8890), following.
Route the LECO factory-installed tubing harness along the same path as the control cable to the control box, and then connect the tubing to the control box. Refer to Figure 3-48 (7890), previous, Figure 3-49 (8890), following. Figure 3-48 Installing Tubing Harness to 7890 Control Box...
Loosen the thumbscrew on the left side of the modulator, and remove the modulator cover. Refer to Figure 3-50, following. The modulator/oven assembly is removed from the instrument in Figure 3-50 Figure 3-51, following, to better illustrate the installation procedure; however, the user will not need to entirely remove the assembly to complete this installation.
Loosen, but do not remove, the mounting screws displayed in Figure 3-52, following, with a Philips screwdriver. Figure 3-52 Mounting Screws for Modulator and Oven 10. Loosen, but do not remove, the lower modulator mounting screw displayed in Figure 3-53, following, with a Phillips screwdriver. The modulator and oven assembly are now slightly adjustable to accommodate alignment later in the procedure.
For LN Modulation Only Install the dewar bracket assembly included with the instrument by completing the following steps for the applicable GC. Place the dewar bracket against the back of the GC and the GC side panel so the mounting screw holes align. Refer to Figure 3-54 (7890), following, and Figure 3-55...
For the Agilent 8890 GC Only: Continue to press the bracket against the GC as screws are installed in the following steps, maintaining hole alignment. Refer to Figure 3-55, following. Figure 3-55 Dewar Bracket Installed to 8890 GC Install one flat washer (PN 193-010) and one nut (PN-194-172) onto the upper mounting screw with a -inch open-end wrench.
Release and lay open the cinch straps, as displayed in Figure 3-57, following. Figure 3-57s Inserting Strap through Bracket Extension Arm COMPRESSED GAS/PROTECTIVE EYEWEAR/PROTECTIVE GLOVES Liquid nitrogen is a refrigerated gas and may cause cryogenic burns or frostbite. Eye protection and gloves that insulate against cold temperatures must be worn when handling liquid nitrogen.
Remove all screws, washers, and ceramic insulators from the modulator mounting position on the end of the dewar cold jet arm. Retain these parts for later installation. Refer to Figure 3-59, following. Figure 3-59 Modulator Mounting Position Gently use fingers to spread the insulation inside of the GC side panel cold jet insertion hole, allowing the cold jet arm to be inserted without interference.
Angle the dewar so that it aligns with the extension arm of the dewar bracket, and then carefully insert the cold jet arm of the dewar through the GC side panel and insulation to the modulator block. Refer to Figure 3-61, following.
3-63, following, allow the user to adjust the dewar so that the cold jet arm aligns with the modulator. This position is usually set at LECO factory settings. Always ensure that the alignment adjustment screws are tight upon the completion of an alignment.
Figure 3-65 Front View of Dewar Installed 10. With the dewar securely positioned onto the bracket, observe the mounting hole alignment of the dewar cold jet from the inside of the GC. If the mounting holes on the dewar cold jet do not concentrically align with the modulator mounting holes, gently adjust the position of the modulator until they are aligned.
CAUTION Securely fasten, but do not overtighten, the mounting screws, or ceramic insulator breakage may occur. 11. Reinstall the ceramic insulators, washers, and screws that were removed in step 5, page 3–54, making sure not to overtighten the screws. Refer to Figure 3-67, following.
14. Measure the distance between the column and the exit port of the cold jets, and ensure there is at least 0.5 mm to 2 mm of empty space. 15. Align the cold jets so that the column runs vertically on the center of the cold jet exit ports.
For CF Modulation Only Install the heat exchanger bracket by completing the following steps for the applicable GC. Place the heat exchanger bracket against the back of the GC and the GC side panel so the mounting screw holes align. Refer to Figure 3-70 (7890), following, and...
For the Agilent 8890 GC Only: Continue to press the bracket against the GC as screws are installed in the following steps, maintaining hole alignment. Refer to Figure 3-71, following. Figure 3-71 8890 CF Heat Exchanger Bracket Installed Install one flat washer (PN 193-010) and one nut (PN-194-172) onto the upper mounting screw with a -inch open-end wrench.
Insert the cinch strap included with the instrument through the uppermost slot in CF heat exchanger bracket, with the fabric side of the strap facing away from the GC. Continue to pull the strap through the upper slot until the buckle prevents the strap from being pulled farther.
Install the heat exchanger assembly onto the heat exchanger bracket by completing steps through E, following. Position the loose end of the cinch strap away from the GC, as displayed in Figure 3-72, page 3–61, so it will not come in contact with the heat exchanger dewar when the dewar is installed to the bracket.
Insert the cold jet arm through the GC side panel and insulation to the modulator block. Ensure that the GC insulation does not interfere with the cold jet arm during insertion by sufficiently opening up the hole through the insulation with your fingers, as needed. Refer to Figure 3-75, previous.
CAUTION Securely fasten, but do not overtighten, the mounting screws, or ceramic insulator breakage may occur. 10. Install, but do not overtighten, one mounting screw and one ceramic spacer (both included with the instrument) into the screw hole where the top alignment rod was removed. Refer to Figure 3-77, following.
13. Tighten the modulator and secondary oven mounting screws loosened in steps Installing CF or LN2 Modulation Systems, beginning on page 3–50. Refer to Figure 3-79, following. 14. Reinstall the insulation and retainer plate removed in step Installing CF or LN2 Modulation Systems, page 3–49, on the side of the modulator block.
16. Install two right-angle quick-disconnect fittings included with the instrument into the heat exchanger arm inlet ports. Tighten using -inch wrench. Refer to Figure 3-80, following. Figure 3-80 Quick Disconnect Fittings on Cold Jet Arm 17. Install the gas lines to the heat exchanger by completing steps and B, following.
PROTECTIVE EYEWEAR/PROTECTIVE GLOVES Protective eyewear and gloves should be worn when handling the thermal bath fluid. Refer to the Safety Data Sheet (SDS) for the specific chemical for additional information. 18. Pour 160 ml of thermal bath fluid included with the instrument into the graduated cylinder included with the instrument.
20. Gently pull the shipping plug out of the heat exchanger. Refer to Figure 3-84, following. Figure 3-84 Heat Exchanger Shipping Plug 21. Unscrew and remove the vent port plug using a -inch wrench. Refer to Figure 3-84, previous. 22. Insert the funnel extension tube approximately 1 inch (2.5 cm) into the heat exchanger.
23. Slowly pour 160 ml of thermal bath fluid from the graduated cylinder into the funnel. Refer to Figure 3-86, following. Figure 3-86 Pouring Thermal Bath Fluid into Heat Exchanger 24. Gently remove the funnel extension from the heat exchanger. Use an absorbent towel to catch any potential drips.
25. Insert the RTD from the immersion chiller into the heat exchanger until it stops at the heat shrink. Refer to Figure 3-88, following. Figure 3-88 Inserting RTD into Heat Exchanger 26. Slowly insert the cold finger from the immersion chiller into the heat exchanger until it stops.
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Figure 3-90 Catching Overflow with Absorbent Towel 27. Reinstall the vent port plug by finger-tightening the plug to the heat exchanger, and then fully tighten the plug with a -inch wrench. Refer to Figure 3-91, following. Figure 3-91 Reinstalling Vent Port Plug 3–72 Pegasus ®...
For LN and CF Modulation Use the spare insulation included with the instrument to fill all voids between the GC side panel and the heat exchanger arm that could allow heat to escape the GC oven wall. Examples of potential leak points are displayed in Figure 3-92, following.
Set the Nitrogen source pressure to 40 psi (2.8 bar). Connect the power cord to the control box. Refer to Figure 3-93, previous. Connect the GCxGC control cable from the control box to the instrument. Refer to Figure 3-94, following. Figure 3-94 Ethernet and Control Cables Connected to Control Box CAUTION: NETWORK CONNECTION...
The LECO mass spectrometer instrument, the computer, and the GC installations must be complete and powered On prior to initializing the following steps for setting and learning modulation system gas flows. Verify and configure the correct flows from the control box by completing steps through D, following.
CAUTION Steps and 10, following, must be completed by a qualified LECO Service Engineer only. Verify and configure the nitrogen pressure regulator by completing steps through G, following. Loosen the four cover screws on cover of the control box, and then remove the cover. Refer to...
Pull out the knob on the N pressure regulator to unlock the regulator. Refer to Figure 3-99, following. Figure 3-98 7890 Gas Pressure Regulator Knobs Figure 3-99 8890 Gas Pressure Regulator Knobs In the ChromaTOF software, select Instrument on the Menu bar, select Diagnostics, and then select the Modulator tab.
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Select the Stage 1 Cold Jet checkbox to open cold jet 1. Adjust the pressure regulator to the following specifications, if required: Pressure must be within the following ranges specifications when the regulator is locked and either cold jet is turned On. ...
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11. Learn the secondary oven cooling proportional valve by completing steps through H, following. Learn Mode determines the power required to open the proportional valve used for cooling the secondary oven during modulation cycles. In the ChromaTOF software, select Instrument on the Menu bar, select Diagnostics, and then select the Modulator tab.
Refer to the liquid-level system instruction manual for additional information. Attach the solenoid assembly to the male fitting. Obtain the fitting adapter supplied by LECO. Use thread tape on the MPT side of the flare fitting – not the flare side.
Attach the fitting adapter to the output of the solenoid assembly on the liquid-level system solenoid assembly as shown in Figure 3-101, following. Figure 3-101 Solenoid Assembly Attached to Transfer Line Attach the transfer line assembly to the fitting adapter. Connect the solenoid assembly cable to the liquid-level controller.
Installing the FLUX™ GCxGC Flow Modulator This section describes how to install the FLUX GCxGC Flow Modulator. This section covers customer site installation of LECO factory-installed flow modulation systems. For customer site upgrade installation procedures, refer to the installation bulletin provided with the instrument.
Using a Phillips screwdriver, loosen, but do not remove, the two mounting screws and washers on each side of the modulator control box. Refer to Figure 3-105 (7890) and Figure 3-106 (8890), following. Figure 3-105 Control Box Installed to 7890 GC Mounting Bracket Figure 3-106 Control Box Installed to 8890 GC Mounting Bracket Slide the control box onto the GC mounting bracket until the...
Route the LECO factory-installed control cable to the control box at the HTR/RTD connection, as displayed in Figure 3-107, following, avoiding the GC oven exhaust path, and then connect the control cable to the control box. Figure 3-107 Control Cable and Tubing Installed to Control Box...
Installing the 7890 Carrier Gas Connections (7890 Only) Connect a copper carrier gas tube from the carrier gas supply to one end of the copper tee fitting. Refer to Figure 3-110, following. Connect a copper gas tube from one end of the copper tee fitting to the flow modulator pressure control module (PCM) gas inlet port on the back of the GC with a nut.
Installing the 8890 Carrier Gas Connections (8890 Only) Connect a copper carrier gas tube (included in the component pack (from the carrier gas supply to one end of the copper tee fitting (included in the component pack). Refer to Figure 3-110, following.
Installing the Columns PROTECTIVE GLOVES Wear protective gloves when handling the column to prevent fingerprints and other contaminants from damaging the column. Insert one end of the secondary column through the bottom of the secondary oven, as displayed in Figure 3-112, following.
Install a 360 µm nut and ferrule (included in the component pack) onto the end of the secondary column. Refer to Figure 3-113, following. Figure 3-113 Installing 360 µm Nut and Ferrule on Column Position the secondary column adjacent and parallel to the column connecting tube, and line up the end of the column with the crimped section of the column connecting tube.
Insert the secondary column, nut, and ferrule down through the top hole in the divert tee fitting that is mounted to the backside of the divert bracket. Insert the column until it reaches the crimped section of the column connecting tube and cannot be inserted farther.
Fully tighten the 360 µm nut and ferrule with the 360 column tool included in the component pack. Refer to Figure 3-117, following. Figure 3-117 Using 360 Column Tool on Secondary Column Install a 360 µm nut and ferrule (included in the component pack) onto the end of the primary column.
11. Insert the primary column, nut, and ferrule up through the bottom hole in the cross fitting, which is mounted to the backside of the inject/exhaust bracket. Insert the column until it reaches the crimped section of the column connecting tube and cannot be inserted farther.
13. Fully tighten the nut and ferrule with the 360 column tool included in the component pack. Refer to Figure 3-120, following. Figure 3-120 Using 360 Column Tool on Primary Column Installing Additional Connections Connect the incoming compressed air gas line to the port labeled “CA”...
Figure 3-122 8890 Compressed Air Gas Line Connected Connect the remote cable from the GC into the remote cable port labeled “JREM2” on the back of the Pegasus BT 4D. Refer to Figure 3-122, previous. Figure 3-123 Remote Cable Connected Connect the control box power cord from facility power to the left side of the control box.
Refer Figure 3-124, previous. The LECO mass spectrometer instrument, the computer, and the GC installations must be complete and powered On prior to initializing the following steps for learning the secondary oven gas flow. Turn On the control box power breaker. Refer to...
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Learning the Proportional Valve Learn the secondary oven cooling proportional valve by completing the following steps. Learn Mode determines the power required to open the proportional valve used for cooling the secondary oven during modulation cycles. 1. In the ChromaTOF software, select Instrument on the Menu bar, select Diagnostics, and then select the Modulator tab.
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Maintenance The Maintenance chapter includes procedures that should be performed on a regular basis to improve the instrument's performance and lifespan. The procedures included in this chapter may require disabling power to the instrument and should be performed only by trained personnel.
ChromaTOF ® help system. Refer to Accessing the Manual, page 1–31. Frequency Area Action Replace when the filament is broken. Contact LECO Service if you need to purchase new replacement Filament filaments. Refer to Replacing the Filaments, page 4–11. Support...
System Leaks Leaks can occur in the gas chromatograph or the mass spectrometer. The following section identifies typical leak indications and then provides checks and corrective action to resolve leaks. Leak Indications Higher than normal vacuum level Excessive background in the mass spectrum ...
Performing a Leak Check Leak checks can be performed through the QC method or by reviewing the background spectra, explained as follows. QC Method Refer to Leak Check in the ChromaTOF Brand Software Manual for instructions to schedule a leak check through the QC method. Review Background Spectra System leaks can be determined by performing a background check.
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Venting the Instrument Complete the following steps to vent the instrument. Select HV Power in the lower right hand corner of the ChromaTOF window, select Power Down from the pop up dialog, and select OK to disable the high voltage. When the “Are you sure you want to disable the high voltage”...
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After venting is complete, a dialog box appears indicating that the vent procedure has completed. Turn Off the main breaker on the back panel, unplug, and power Off the instrument before performing any maintenance on the Pegasus ® BT 4D. When the maintenance tasks are completed and the system is ready for evacuation, refer to Powering Up the...
Powering Up the Instrument The following procedure explains how to power up the instrument after a shutdown, though it is routinely left running at all times. Also refer Venting the Instrument, page 4–6. Verify that all cables and power cords are connected and the transfer line is properly installed into the source.
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The instrument should be allowed a 1-hour stabilization time prior to operation. Perform a Daily Optimization in the ChromaTOF Brand Software Manual. Maintenance Pegasus ® 4–9...
Powering Down the System It is commonplace for most laboratories to leave the instrument running and under vacuum at all times. But in some circumstances, such as a scheduled power-loss, the Pegasus BT 4D must be shut down for an indefinite amount of time. Vent the instrument.
Replacing the Filaments PROTECTIVE GLOVES Wear protective gloves when handling the filaments to prevent fingerprints and other contaminants. CAUTION Before the filament(s) can be removed, the instrument needs to be cooled down and vented. Complete the following steps to replace the filaments in the Pegasus BT 4D system.
Screw the filament removal tool into the filament bracket, and then gently pull the filament removal tool and filament bracket out of the source. Refer to Figure 4-3, following. Figure 4-3 Filament Removal Tool in Filament Bracket Set the filament removal tool on the bench, leaving the filament bracket and filament pointing straight up.
Install the new filament by sliding it over the guide pins on the filament bracket. Refer to Figure 4-5, following. Make sure that the new filament is installed with the filament ribbon in the same orientation as the filament that was removed. Figure 4-5 Attaching New Filament to Bracket Screw the filament hold-down screw into the filament ceramic...
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11. Unscrew and remove the filament removal tool from the filament bracket. 12. Using the T25 Torx driver, insert the filament bracket mounting screw to attach the filament bracket to the source base. 13. Screw the filament bracket mounting screw into the filament bracket with the T25 Torx driver, attaching the bracket to the source base.
Replacing the Column This section outlines the Pegasus BT 4D hardware and ChromaTOF software procedures to change a column on the Pegasus BT 4D. HIGH TEMPERATURE WARNING/PROTECTIVE GLOVES The transfer line assembly reaches very high temperatures. Allow the transfer line to cool before handling the column. Do not operate the unit until the transfer line is completely installed and the gas chromatograph is in place.
In the Diagnostics window, select the Vacuum tab. Figure 4-8 Venting System in Vacuum Tab Within the Vacuum tab, select the Vent System button (refer to Figure 4-8, previous), which will trigger the following series of events: The ChromaTOF software will power down the high voltage.
Once the system is completely vented, the ChromaTOF software will inform the user with the notification displayed in Figure 4-9, following. Additionally, the system log will be appended with the event. Figure 4-9 Venting Complete Notification Next, slide the GC over to the right to access the transfer line. To do this, pull the black knob (refer to Figure 4-10, following) at the...
Unscrew the inlet nut from the inlet using the -inch open-end wrench. Refer to Figure 4-11, following. Figure 4-11 Removing Inlet Nut Gently pull the column out of the inlet nut. Remove the inlet ferrule from the inlet nut. This can be done by using a thumb tack or paperclip to dig the ferrule out of the nut.
Unscrew the transfer line nut using the -inch open-end wrench. Refer to Figure 4-13, following. Figure 4-13 Removing Transfer Line Nut 10. Pull the column out of the transfer line nut. This can be done by firmly grabbing the column before the nut to ensure the column doesn’t break and tugging on the nut until it starts to move.
11. Use a thumb tack to take the transfer line ferrule out of the nut. Firmly push the thumb tack into the hole until the ferrule loosens and the thumb tack is completely inside the nut. Refer to Figure 4-15, following. Figure 4-15 Removing Transfer Line Ferrule 12.
15. Tighten the nut enough so that you can no longer move the column if you tug on it. Take the inlet nut out and measure 4 to 6 mm for the inlet column depth. Put the nut back in and tighten snugly.
18. Feed the column through the transfer line nut, ferrule, and transfer line as indicated in Figure 4-19, following. Push the column through the transfer line until several inches of the column extend out of the opposite end of the transfer line. Figure 4-19 Final Threading of Column 19.
23. Once the column change is finished, return to the Diagnostics screen, select the Vacuum tab, and select Evacuate System. In the pop-up window, select Start. After doing so, the user can elect to enable the heaters once the evacuation is complete. The roughing pump will engage a few seconds after selecting Start.
25. In the pop-up window, select the Power Up radio button and the Initialize HV Power Supplies checkbox. The user can define the transfer line and ion source temperatures as well, if desired. Refer Figure 4-23, following. Figure 4-23 Power System Dialog 4–24 Pegasus ®...
Adding Calibration Compound CAUTION The direct inlet solenoid valve must be Off while installing or checking the calibration compound vial. From the System Ribbon bar, select Diagnostics. On the Ion Source Parameters tab, verify that the Tune Compound Valve is set to Closed. Select HV Power in the lower right hand corner of the ChromaTOF window, select Power Down from the pop up dialog, and select OK to disable the high voltage.
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11. To power up the instrument, complete steps through E, following. Select the HV Power button in the lower right hand corner of the ChromaTOF window. A dialog box opens. Select the Power Up radio button. Enter the desired transfer line and ion source temperatures. Select the Initialize HV Power Supplies checkbox.
Replacing Sorbent in the Foreline Trap CAUTION Refer to the Edwards FL20K Foreline Trap Instruction Manual for any hazards and warnings regarding the sorbent prior to handling the sorbent. Refer to Figure 8-1, page 8–3, for an illustration of the foreline trap. Refer to the FL20K Foreline Trap Instruction Manual for maintenance requirements and procedures.
Replacing the Mist Filter Check the mist filter elements and replace them when a persistent odor exists. It is more likely that these elements will require replacement when frequently exposed to atmosphere. Use lint-free gloves and wipes when handling filter elements. Power down and vent the instrument.
Cleaning the Pegasus BT 4D Filters The panel filters should be checked at least monthly and cleaned if there is residue. Open the Pegasus BT 4D’s front panel by quickly applying and then releasing pressure to the panel. Refer to Figure 4-25, following.
Changing the GC Carrier Gas FLAMMABLE/HEALTH HAZARD/HARMFUL PROTECTIVE GLOVES/PROTECTIVE EYEWEAR Hydrogen is commonly used as a carrier gas in GCs and associated equipment. Hydrogen accumulations, or leaks in GCs and any associated equipment, can potentially be explosive and dangerous, and hydrogen should be used only as a carrier gas in accordance with all applicable installation, maintenance, and use instructions.
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11. Using a -inch wrench, slightly loosen the fitting on the GC carrier gas line where it connects into the GC’s EPC module until you hear gas leaking from the connection. Be careful not to loosen the fitting too much so that it becomes fully disconnected. Allow the line to bleed for approximately 5 minutes to remove all room air from the lines.
Changing the Exhaust Chemical Trap This section applies only to Pegasus BT 4D systems with the FLUX GCxGC Flow Modulator installed. The chemical trap on the flow modulator’s exhaust will need to be replaced periodically. It is located on the rear left corner on the top of the GC, as shown in Figure 4-26, following.
Changing the Column Connecting Tube Complete the following steps to change the column connecting tube. Unwind the column from the secondary oven. Refer to Figure 4-27, following. Figure 4-27 Column Unwound from Secondary Oven Loosen the two screws holding the modulator assembly to the modulator mounting bracket with a Torx T20 screwdriver, and then slide the modulator assembly down until it can slide no farther.
Turn Off auxiliary gas flow by completing the following steps: A. On the GC touchscreen/keypad, select AUX EPC. B. Using the down arrow key, scroll to AUX Pressure. C. Select the Off/No button. Loosen the 360 µm nut and ferrule on the secondary column with the 360 column tool (included in the component pack), and remove the secondary column from the flow modulator assembly.
6. Loosen the nuts and ferrules on the connecting tube with a -inch open-end wrench. Refer to Figure 4-31, following. Figure 4-31 Loosening Nuts on Connecting Tube Remove the two screws connecting the divert tee fitting to the modulator assembly with a Torx T20 screwdriver. Refer to Figure 4-32, following.
Lift the divert tee fitting upward until it is no longer attached to the connecting tube, and then bend the tee fitting slightly toward the back of the GC oven. 10. Remove the connecting tube from the inject/exhaust cross fitting. 11.
14. Bring the divert tee fitting close to its original position, and then slide the tee fitting onto the connecting tube via the hole on the bottom of the tee fitting. 15. Reinstall the screws removed in step 7, page 4–35, with a Torx T20 screwdriver.
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Signal to Noise (S/N) .............. 5–17 Pegasus BT 4D Theory of Operation ..........5–19 Introduction to the GCxGC Technique ........5–19 Benefits of LECO’s Pegasus BT 4D – TOFMS System ....5–20 Increased Peak Capacity ............ 5–20 Thermal Modulation ............5–21 Flow Modulation ..............
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Illustrations Figure 5-1 Pegasus BT Diagram ............5–4 Figure 5-2 Gas Chromatograph Diagram ..........5–4 Figure 5-3 Chromatogram ..............5–5 Figure 5-4 Mass Spectrum ..............5–6 Figure 5-5 Mass Spectrum Comparison ..........5–6 Figure 5-6 Ions Pulsed from Accelerator ..........5–7 Figure 5-7 Ion Acceleration ..............
Pegasus BT System (GC-TOFMS) The Pegasus BT system combines gas chromatography and mass spectrometry, two very powerful analytical techniques. Gas chromatography (GC) is an analytical technique for the separation of volatile and semi-volatile components in chemical mixtures. Mass spectrometry (MS) is a universal, specific, and very sensitive detection technique for measuring the mass and quantity of ions.
Figure 5-1 Pegasus BT Diagram Analysis Process The following section explains the main steps in a Pegasus BT GC-TOFMS analysis. Sample Introduction into Gas Chromatograph The sample is injected into a heated injection port, vaporized, and carried into a capillary column by a carrier gas such as helium or hydrogen.
Separation In the capillary column, the components of the mixture are separated in time by their different migration rates through the column. The capillary column is a fused silica tube (e.g. 30 m x 0.25 mm x 0.25 µm HP-5MS) with a protective polyamide coating on the outside surface for mechanical protection.
Ionization in Electron impact Ion Source Ions are created in the ion source by bombarding the entering molecules with a beam of electrons (~70 eV energy). This beam of electrons is formed by a set of electrodes with corresponding voltages and a pair of permanent magnets (as displayed in Ion Source), which focus electrons emitted from a heated filament.
Mass Analysis Once ions are created in an ion source, they are transferred through the interface ion optics into the orthogonal accelerator and are mass analyzed. In a time-of-flight mass spectrometer, the m/z of an ion is determined by measuring its time-of-flight (i.e. its travel time from the ion source to the detector).
Figure 5-8 Ions in Drift Region Figure 5-9 Ions Separate According to m/z All of the ions pulsed from the ion source have a range of kinetic energies depending on several factors. This spread of energy results in differences in the time-of-flight of ions with the same m/z ratio, which in turn, affects the mass resolution of the mass spectrometer.
During this routine, the valve connecting the Ion Source to the vial with calibration compound (PFTBA) is opened. The vapors of the calibration compound are introduced into the Ion Source and a mass spectrum of the calibration compound is obtained. Because the mass fragmentation pattern of the calibration compound is well known, the time-of-flight for each known mass is measured.
Ion Detection In the Pegasus BT, a micro-channel plate (MCP) chevron stack is used for ion detection. Ions striking the MCP channel surface knock out several electrons due to the Ion-electron Emission Effect. These created electrons, called secondary electrons, are accelerated by the electrical field applied to the MCP, collide with the MCP channel surface and create even more electrons through an electron-electron emission effect.
(until the hard drive of the computer is filled) without loss of any analytically useful data. After the data are transferred to the PC, a LECO proprietary signal processing algorithm compresses the data and writes it to the PC’s hard drive without losing any analytically useful data.
Data Processing and Peak Deconvolution Acquired data can be automatically processed immediately after acquisition or at a later time. The Data Processing (DP) Method requires relatively little input from the analyst for automatic processing. Refer to Data Processing Method Parameters in the ChromaTOF Brand Software Manual.
Figure 5-11 Peak A Figure 5-12 Peak B The total ion chromatogram in Figure 5-11, page 5–13, indicates only one peak, presumably only one component. However, the ion signal plots in Figure 5-12, previous, display two peak apexes for m/z=78 and m/z=119 separated by 0.05 seconds.
With such deconvolution capabilities, the need for complete chromatographic resolution is decreased greatly. By decreasing the chromatographic resolution requirements and acquiring enough sample points across narrow peaks, chromatographic separation times can be decreased. Traditional Naphtha Analysis, Figure 5-15, following, displays a Chromatogram obtained by conventional GC/MS. The analysis time is over 2 hours.
Figure 5-16 Naphtha Analysis - 5 Minutes Signal to Noise (S/N) Conventional S/N definitions that estimate noise from a segment of “flat” baseline adjacent to the peak of interest may suffer limited applicability within regions of extreme chromatographic density, within regions of zero baseline, or where the baseline may contain zeroes.
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Ion distribution noise (ND) = A fraction of the number of ions required to confidently conclude that the observed trace represents a chromatographic event, not a non-chromatographic event. The temporal distribution of chromatographically delivered ions is expected to be approximately bi-Gaussian with a predictable, finite full width at half maximum height (FWHM).
Pegasus BT 4D Theory of Operation The following section provides an overview of the operation of the Pegasus BT 4D, which is the Pegasus BT system combined with the GCxGC accessory option. Introduction to the GCxGC Technique GCxGC is a relatively new technique noted for its ability to analyze complex mixtures.
J.V. Seeley, S.K. Seeley, Multidimensional gas chromatography: fundamentaladvances and new applications (review), Anal. Chem. 85 (2013) 557–578. Benefits of LECO’s Pegasus BT 4D – TOFMS System The Pegasus BT 4D offers several benefits including increased peak capacity. The following section provides an overview of these benefits.
Thermal Modulation The Pegasus BT 4D uses a two-stage thermal modulator. The two-stage thermal modulator consists of two cryogenic-traps in series. The first stage traps the sample from the first column and then releases it to the cold second stage. The second stage then holds the sample while the first stage cools.
amount, sampled at the same frequency (12 points across a peak’s FWHH) in GC mode and GCxGC mode is essentially the same. The following figures illustrate conceptually how the acquisition rate of the Pegasus BT 4D functions and its effect on how GC and GCxGC peaks compare for the same amount injected on column.
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To improve the signal characteristics across a chromatographic peak, the spectra are summed over an interval or binned to give a certain number of spectra across the peak. In this example, the data will be summed (binned) so the result provides 10 spectra across each peak. Figure 5-18, following,...
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If this is taken one step further, and all of the data in the peak (each peak has the same amount of analyte) is binned, there is a total area (area is the sum of all heights defining the chromatographic curve) that is equal for the two peaks.
Figure 5-19 Simulated Peak Areas for a GC and GCxGC In cases where there is no chemical background at a selective mass window, the detection limits of GC and GCxGC on the Pegasus BT 4D are essentially the same. However, in the case where chemical noise is present and a baseline exists, the S/N can be different between GC and GCxGC and this will impact the detection limit.
The Pegasus BT-4D flow modulator is shown in Figure 5-20, following. It consists of two custom fittings: a cross (four way) and a tee (three way), and a solenoid valve. The modulator operates in two states: Figure 5-20 Flow Modulator Installed ...
Divert State—where the valve changes the switching flow gas to flow in opposition to column one, carrying the effluent to waste while also supplying column 2 with clean carrier gas. This cycle of a brief inject state followed by a longer divert state occurs continuously throughout the run, modulating the effluent from the primary column.
Secondary Oven An important factor in optimizing a GCxGC separation is the retention of the analytes in the 2nd dimension. The temperature at which the analytes elute from the first column determines the temperature of the 2nd dimension separation. If this temperature is too low, the analytes elute slowly from the second column during subsequent slices.
The recommended value is +15 °C. This is generally good for most cases. The higher temperature produces better 2nd dimension peaks by quickly releasing the trapped sample bands. The flow modulator is not actively heated, so this offset applies to the thermal modulator only.
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Parameter Time Period Time from start of modulation period to time 1 stage cold jet is turned Off Time 1 stage cold jet is Off Time from start of modulation period to time 1 stage hot jet is turned On Time 1 stage hot jet is On Time from start of modulation period to time 2...
Flow Modulation Since only a portion of the sample is injected onto the secondary column, it is important to have proper Second Dimension Time and Injection Duration settings. In order to avoid undersampling the column 1 peaks, the modulation ratio (number of slices across a peak) should be greater than 2.5.
There are three selections for injection duration in Table 5-3, following. Injection Result Duration (sec) 0.03 Increased Peak Capacity, Lower Sensitivity 0.05 Default, Average Peak Capacity, Average Sensitivity 0.08 Increased Sensitivity, Lower Peak Capacity Table 5-3 Hot Pulse / Modulation Period Timing Parameters Injection Duration Options 0.05 sec is the default setting and will be the best option for most analysis.
Simply GCxGC ™ Simply GCxGC from LECO is a free tool designed to walk users through the steps of creating an optimized GCxGC method for complex samples. Create a GCxGC method from scratch, or convert an existing 1D method to GCxGC. The tool provides logical, step-by-step...
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Diagnostics The Diagnostics chapter explains how to monitor and check the operation of the instrument hardware, which can help determine if the instrument is operating properly. Use Diagnostics to check switches and solenoids and to monitor various system hardware parameters. System Status LED ................
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System Status LED The Pegasus ® BT 4D has a system status LED built into the front panel of the instrument. This LED has three status modes to give users a visual indication of the status of the system. Off: The LED is Off when the HV Power in the system is turned Off. On: The LED is On when the HV Power is enabled and free of system faults or errors that would prevent data from being collected.
The System Status tab indicates the location of faults in the system. Any warning or error message that could prevent the Pegasus BT 4D system from collecting data will be displayed on this page. If the errors cannot be resolved, contact LECO's Service Department. 6–4 Pegasus ®...
Log. The Zip Report for Service button can be used to create a zip file of the log to send to the LECO Service Department to help diagnose issues with the instrument.
Standby Use the Standby tab to set some of the instrument parameters during extended inactive periods. Users can set the length of time after the last acquisition completes, before the instrument goes into standby; a GC method can be selected when entering standby to set the GC conditions.
Ion Source Parameters The Ion Source Parameters tab can be used to monitor or adjust parameters of the ion source, transfer line, and tune compound valve. Changing the tune compound valve state, turning the filament emission On and Off, adjusting the ion source and transfer line temperatures, and selecting the desired active filament can all be accomplished by changing the value in the Target column.
Instrument, page 4–8). If the voltage fault remains, there is a chance that a voltage short has occurred inside the vacuum system. Power down the instrument and contact the LECO Service Department. The voltage setpoints cannot be changed from this tab. 6–8 Pegasus ®...
Modulator Tab (Thermal System) Use the Modulator tab to monitor the status of the thermal modulator and secondary oven. Modulator Within the Modulator section, the temperature of the modulator can be turned On or Off by selecting the On or Off radio buttons next to Enable, and the temperature can be manually set by entering a value in the Set Point field.
The Learn Mode section is used to calibrate the cooling gas flow for the secondary oven. This calibration is done on new systems as part of the installation process by a qualified LECO Service Engineer. If the valve requires re-calibration, refer to the Diagnostics chapter in the ChromaTOF Brand Software Manual.
Modulator Tab (Flow System) Use the Flow Modulator tab to monitor the status of the modulator and secondary oven. Valve State This checkbox indicates whether or not the modulator is in Injection Mode. Select the checkbox to put the valve in Injection Mode. Cycle Testing The modulator can be tested manually by entering the modulation time in the Modulation Time (sec) field and entering the inject duration...
The Learn Mode section is used to calibrate the cooling gas flow for the secondary oven. This calibration is done on new systems as part of the installation process by a qualified LECO Service Engineer. If the valve requires re-calibration, refer to the Diagnostics chapter in the ChromaTOF Brand Software Manual.
Vacuum Tab Use the Vacuum tab to monitor the vacuum system pressure, roughing pump and turbo pump states, and turbo pump operating readbacks. If there is a problem with the turbo pump, the readbacks will be significantly different than those displayed in the following screenshot. The most common issue will be the turbo pump temperature being higher than normal.
Profile View Tab The Profile View tab can be used to run a live acquisition for diagnostic purposes. Any data collected from the Profile View tab in Diagnostics will not be stored on the hard drive of the PC. Select an MS Method that will be used to run the profile acquisition.
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If you are still experiencing difficulties after referencing the service information, please contact the LECO Service Department at 269-982-5497 for assistance. Remote Diagnostics ............... 7–3 Frequently Asked Questions ............
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A broadband internet connection is needed and no additional software is required. A separate phone line is preferable, although Smartline does offer a chat feature that can be used to communicate with LECO Service. The chat feature is a secure connection that allows you and LECO Service to implement various security options.
Frequently Asked Questions Topic Question Answer Archives can be created or restored with entries in the Acquisition Queue Archive I cannot archive. and Data Processing Tasks Table, but these queues must be paused to perform archive tasks. In a Calibration I want to assign an internal Select the Type column of the standard to an analyte,...
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Topic Question Answer User library entries cannot be edited I need to change a library at this time. You can delete the Library entry in a user library. entry and then add the correct entry How can this be done? back in, the entry is added to the end and has a different ID number.
General Troubleshooting Area Symptom Action If mass 28 is ≥ 500% of mass 32, check for leaks in the GC carrier gas supply line. If mass 28 is < 500% of mass 32, check Leak Check the vacuum system for leaks in the Leak check failure following areas: (applies only to...
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Area Symptom Action Check System Log for message. Refer to HV Power Cannot Enable System Log in the ChromaTOF Brand Software Manual. Check that the Ion Source 19-pin connector is attached to the feedthrough Ion Source on the side of the ion source vacuum Temperature fault chamber.
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Illustrations The Illustrations chapter can assist in procedures, verify information during setup, and help to locate parts within the instrument and part numbers. The following items listed are subject to revision. Confirm the current parts and part numbers before ordering. To place an order by phone, call our customer service department toll-free in the United States at 1-800-292-6141 or 269-985-5496.
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Figure 8-7 Top Level View Illustrations Pegasus ® 8–9...
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Index Index provides page numbers for topics throughout the manual. In the electronic manual available through the software, the page numbers in the index provide a hyperlink to the corresponding topic. About this Manual ..............1–24 Accessing the Manual.............. 1–31 Adding Calibration Compound ..........
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Electrical, Installing the ............. 2–5 Electromagnetic Compatibility Notices ........1–26 Equipment Packages ............... 1–50 Filament Filament Bias Voltage ............7–4 Replacing ................. 4–11 Filters, Cleaning ..............4–29 Flicker and Harmonic Emissions ..........1–29 Flow Modulator Tab ..............6–11 FLUX™ Flow Modulator, Installing the ........3–82 Foreline Trap, Replacing Sorbent in ..........
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Sample Introduction, Theory ..........5–4, 5–5 Service ................... 7–1 System Leaks ................4–4 System Status LED ..............6–3 Theory of Operation..............5–1 4D ................... 5–19 Troubleshooting, General ............7–6 Vacuum System ............... 5–9 Installing ................2–16 Venting the Instrument ............. 4–6 Voltage Tolerance Calculation ............
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