U2000 Series Operating and Service Guide v
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.
Direct current On (supply)
Alternating current Off (supply)
Both direct and alternating current
Equipotential protected throughout by
DOUBLE INSULATION or REINFORCED
INSULATION
Three-phase alternating current
Caution, risk of electric shock.
Earth (ground) terminal
Caution, risk of danger (refer to this
manual for specific Warning or Caution
information).
Protective conductor terminal Caution, hot surface.
Frame or chassis terminal
Out position of a bi-stable push control.
Equipotentiality In position of a bi-stable push control.
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