Keysight 34420A User’s Guide 3
Certification
Keysight Technologies certifies that this product met its published specifications 
at the time of shipment from factory. Keysight Technologies further certifies that 
its calibration measurements are traceable to the United States National Institute 
of Standards and Technology, to the extend allowed by that organization’s 
calibration facility, and to the calibration facilities of other INternational Standards 
Organization members.
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.
Earth (ground) terminal Frame or chassis (ground) terminal