1Introduction
5975/5977 Series MSD Operating Manual 13
The 5977B Series MSD
The 5977B Series MSD is a stand-alone capillary GC detector for use with either
an Agilent 7890B Series or an Agilent 7820 GC. The MSD features:
• WEB User Interface (WUI) for locally monitoring and operating the MSD
• A turbo vacuum pump with one of four different foreline pumps or a diffusion
vacuum pump with a Pfeiffer DUO 2.5 foreline pump
• Four different types of independently heated EI sources available:
• Standard source in SS material
• Standard source in Inert material
• XTR source
• HES
• Independently MSD heated hyperbolic Quad
• HED EM
• Independently GC heated GC/MSD interface
Physical description
The 5977B Series MSD housing is approximately 41 cm high, 30 cm wide, and
54 cm deep. The weight is 39 kg for the diffusion pump mainframe, 44 kg for the
standard EI turbo pump mainframe, and 46 kg for the EI/CI turbo pump
mainframe. The foreline (roughing) pump weighs an additional 11 kg (standard
pump), and is usually located on the floor behind the MSD.
The basic components of the instrument are:
• Frame/cover assemblies
• Vacuum system
• GC interface
• Electronics
• Analyzer
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