Safety Symbols - Keysight u2722a Service Manual

Safety Symbols

Direct current (DC)
Alternating current (AC)
Both direct and alternating current
Three-phase alternating current
Earth (ground) terminal
Protective conductor terminal
Frame or chassis terminal
Equipotentiality
U2722A/U2723A Service Guide
The following symbols on the instrument and in the documentation
indicate precautions which must be taken to maintain safe operation of
the instrument.
Equipment protected throughout by
double insulation or reinforced
insulation
Off (supply)
On (supply)
Caution, risk of electric shock
Caution, risk of danger (refer to this
manual for specific Warning or Caution
information)
Caution, hot surface
Out position of a bi-stable push control
In position of a bi-stable push control
III