Keysight N3300A User Manual page 6

SAFETY SYMBOLS
Direct current
Alternating current
Both direct and alternating current
Three-phase alternating current
Earth (ground) terminal
Protective earth (ground) terminal
Frame or chassis terminal
Terminal is at earth potential. Used for measurement and control circuits designed to
be operated with one terminal at earth potential.
Terminal for Neutral conductor on permanently installed equipment
Terminal for Line conductor on permanently installed equipment
On (supply)
Off (supply)
Standby (supply). Units with this symbol are not completely disconnected from ac
mains when this switch is off. To completely disconnect the unit from ac mains, either
disconnect the power cord or have a qualified electrician install an external switch.
In position of a bi-stable push control
Out position of a bi-stable push control
Caution, risk of electric shock
Caution, hot surface
Caution (refer to accompanying documents)
The WARNING sign denotes a hazard. It calls attention to a procedure, practice, or
WARNING
the like, which, if not correctly performed or adhered to, could result in personal
injury. Do not proceed beyond a WARNING sign until the indicated conditions are
fully understood and met.
The CAUTION sign denotes a hazard. It calls attention to an operating procedure, or
Caution
the like, which, if not correctly performed or adhered to, could result in damage to or
destruction of part or all of the product. Do not proceed beyond a CAUTION sign
until the indicated conditions are fully understood and met.
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