U8001A/U8002A User’s and Service Guide III
Safety Symbols
The following symbols on the instrument and in the documentation
indicate precautions which must be taken to maintain safe operation of
the instrument.
Direct current Off (supply)
Alternating current On (supply)
Both direct and alternating
current
Equipment protected throughout
by double insulation or reinforced
insulation.
Three-phase alternating current Caution, risk of electric shock.
Earth (ground) terminal Caution, risk of danger (refer to
this manual for specific Warning
or Caution information.
Protective conductor terminal Caution, hot surface.
Frame or chassis terminal Out position of a bi-stable push
control.
Equipotentiality In position of a bi-stable push
control.