Introduction 1
5977B Series MSD Troubleshooting and Maintenance Manual 11
Abbreviations Used
The abbreviations in Table 2 are used in discussing this product. They are
collected here for convenience.
Tab le 2 Abbreviations
Abbreviation Definition
AC Alternating current
ALS Automatic liquid sampler
BFB Bromofluorobenzene (calibrant)
CI Chemical ionization
DC Direct current
DFTPP Decafluorotriphenylphosphine (calibrant)
DIP Direct insertion probe
DP Diffusion pump
DS Data system
EI Electron impact ionization
EM Electron multiplier (detector)
EMV Electron multiplier voltage
EPC Electronic pneumatic control
eV Electron volt
FW Firmware
GC Gas chromatograph
HED High-energy dynode (refers to detector and its power supply)
HES High efficiency source
id Inside diameter
Inert+ Extractor source
LAN Local Area Network
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