Keysight N1913/1914A User’s Guide 7
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.
Caution, risk of danger. The Instruction
Documentation Symbol. The
instrument is marked with this symbol
when it is necessary for the user to
refer to the instructions in the supplied
documentation.
This symbol indicates the operating
switch for ‘Stand-by’ mode. Note, this
instrument is NOT isolated from the
mains when the switch is pressed. To
isolate the instrument, the mains
coupler (mains input cord) should be
removed from the power supply.
Alternating current (AC)
Instrument protected throughout by
DOUBLE INSULATION or REINFORCED
INSULATION.
Direct current (DC) On (Supply)
Both direct and alternating current Off (Supply)
Three-phase alternating current Caution, risk of electric shock
Earth (ground) TERMINAL Caution, hot surface
PROTECTIVE CONDUCTOR TERMINAL In position of bi-stable push control
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