Safety Symbols - Keysight Technologies E4412A Operating And Service Manual

Safety Symbols

The following symbol on the instrument and in the documentation indicates
precautions that must be taken to maintain safe operation of the instrument.
Caution, risk of danger.
The Instruction Documentation
Symbol. The product is marked with
this symbol when it is necessary for the
user to refer to the instructions in the
supplied documentation.
Alternating current (AC).
Both direct and alternating current.
Earth (ground) TERMINAL.
Frame or chassis TERMINAL.
On (Supply).
Equipment protected throughout by
DOUBLE INSULATION or REINFORCED
INSULATION.
Caution, hot surface.
Out position of bi-stable push control.
6
ESD
Keysight E4412A and E4413A Operating and Service Guide
This symbol indicates that a device, or
part of a device, may be susceptible to
electrostatic discharges (ESD) which
can result in damage to the product.
Observe ESD precautions given on the
product, or its user documentation, when
handling equipment bearing this mark.
Direct current (DC).
Three-phase alternating current.
PROTECTIVE CONDUCTOR TERMINAL.
Equipotentiality.
Off (Supply).
Caution, risk of electric shock.
In position of bi-stable push control.