In This Manual
This manual describes the operation, troubleshooting, and maintenance of
the Agilent Technologies 5973Network Mass Selective Detector (5973N
MSD)
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5973N MSDs are equipped with either a diffusion pump or one of two
turbomolecular (turbo) pumps. Chemical Ionization is available for the
turbo pump MSDs only. The serial number label displays a product number
that tells what kind of MSD you have. In this manual, the term “CI MSD”
applies to both the EI/PCI MSD and the EI/PCI/NCI MSD.
• Chapter 1 shows you how to prepare and install a capillary column.
• Chapter 2 describes basic tasks such as setting temperatures, monitoring
pressures, tuning, and venting, and pumpdown.
• Chapter 3 describes basic tasks necessary to operate a CI MSD in CI
mode.
• Chapter 4 provides a quick reference for identifying causes of poor
instrument performance or malfunctions.
• Chapter 5 provides a quick reference for identifying problems unique to
CI MSDs.
• Chapter 6 features maintenance procedures.
• Chapter 7 features maintenance procedures unique to CI MSDs.
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• Chapter 8 describes operation of the components of the vacuum system.
• Chapter 9 describes the GC/MSD interface, and the CI flow module.
• Chapter 10 describes operation of the analyzer (ion source, mass filter,
and detector).
• Chapter 11 describes the electronics that control the MSD.
• Chapter 12 contains illustrated parts identification and part numbers.
• Appendix A is an overview of chemical ionization theory.
For updated information, check the Agilent Technologies Chemical Analysis
web site at ^››z9——§§§"VadFm›4ph—4^Fh.
Other User Information
5973 Mass Selective Detector Reference Collection
This CD-ROM includes the following multimedia resources:
• Software tutorial: hands-on training
• 5968-7358E 5973Network Mass Selective Detector Specifications
• Mass Spectrometer Fundamentals: Mass spectrometer hardware, and
Acquiring and evaluating (mass) spectra
6
The 5973Network MSD
The 5973N MSD is a stand-alone capillary GC detector
The 5973N Mass Selective Detector (MSD) is designed for use with the
6890 Plus Series Gas Chromatograph. The MSD features:
• Control panel for locally monitoring and operating the MSD
• One of three different high vacuum pumps
• Rotary vane foreline pump
• Independently heated electron-ionization ion source
• Independently heated hyperbolic quadrupole mass filter
• High-energy dynode (HED) electron multiplier detector
• Independently heated GC/MSD interface
• Chemical ionization (EI/PCI or EI/PCI/NCI) models available
Physical description
The 5973N MSD is a rectangular box, approximately 42 cm high, 26 cm wide,
65 cm deep. The weight is 25 kg for the diffusion pump mainframe, 26 kg for
the standard turbo pump mainframe and 29 kg for the performance turbo
pump mainframe. The attached rough pump weighs an additional 11 kg.
The basic components of the instrument are: the frame/cover assemblies,
the control panel, the vacuum system, the GC interface, the electronics, and
the analyzer.
The control panel allows local monitoring and operation of the MSD
The control panel acts as a local user interface to the MSD. You can perform
some basic tasks such as running a tune, a method, or a sequence; and
monitor MSD status from the control panel.
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