10 5977 Series MSD Operation Manual
1 Introduction
5977 Series MSD Version
5977 Series MSDs are equipped with a high performance turbomolecular
(turbo) pump or a diffusion pump, and a choice of three foreline pumps. In
addition, there are two types of analyzers (stainless steel or inert) and four
types of ion sources. The serial number label displays a product number
(Table 1) that indicates what type of MSD you have.
Table 1 Available high vacuum pumps
Model name Product number Description Ionization mode/Type
5977E MSD Diff Pump for 7820 GC G7035A Diffusion pump Electron ionization
(EI)/Stainless Steel
5977E MSD Turbo Pump for 7820 GC G7036A Performance Turbo pump Electron ionization
(EI)/Stainless Steel
5977A VL inert MSD
EI Diffusion Pump for 7890 Series GC
G7037A Diffusion pump MSD Electron ionization (EI) /Inert
5977A inert MSD EI Turbo for
7890 Series GC
G7038A Performance turbo pump
MSD
Electron ionization (EI) /Inert
5977A extractor MSD EI Perf Turbo
for 7890 Series GC
G7039A Performance turbo pump
MSD
Electron ionization
(EI)/Extractor
5977A EI/CI MSD for 7890 Series GC G7040A Performance turbo pump
MSD
Electron ionization
(EI) /Extractor
Chemical ionization /PCI, NCI
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