4 Keysight 34970A/34972A Service Guide
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.
Alternating current (AC) Frame or chassis (ground) terminal
Caution, risk of electric shock
Caution, risk of danger (refer to this
manual for specific Warning or Caution
information)
Standby supply. Unit is not completely
disconnected from AC mains when
switch is off.
Protective earth (ground) terminal
IEC Measurement
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