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Safety Symbols
U2701A/U2702A USB Modular Oscilloscopes User's Guide
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 (DC)
Alternating current (AC)
Both direct and alternating
current
Three-phase alternating current
Earth (ground) terminal
Protective conductor terminal
Frame or chassis terminal
Equipotentiality
Equipment protected throughout
by double insulation or reinforced
insulation.
Off (supply)
On (supply)
Caution, risk of electric shock.
Caution, risk of danger (refer to
this manual for specific Warning
or Caution information).
Caution, hot surface.
Out position of a bi-stable push
control.
In position of a bi-stable push
control.
CAT I
Category I Overvoltage
Protection
iii
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