Instrument Markings And Symbols - Thermo Scientific TRACE GC Ultra Maintenance And Troubleshooting Manual

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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 TRACE GC Ultra.
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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
Maintenance and Troubleshooting Manual