About This Manual
Instrument Markings and Symbols
The following table explains the symbols used on Thermo Fisher Scientific
instruments. Only a few of them are used on the FOCUS GC gas chromatograph.
xviii
Symbol
Direct Current
Alternating Current
Both direct and alternating current
Three-phase alternating current
3
Earth (ground) terminal
Protective conductor terminal
Frame or chassis terminal
Equipotentiality
On (Supply)
Off (Supply)
Instrument Markings and Symbols
Description
Instruction Manual
Need help?
Do you have a question about the FOCUS GC and is the answer not in the manual?