Keysight U1281A - Safety Symbols

Keysight U1281A/U1282A Service Guide 3
Safety Symbols
The following symbols on the instrument and in the documentation indicate
precautions that must be taken to maintain safe operation of the instrument.
Direct current (DC) Alternating current (AC)
Caution, risk of electric shock
Caution, risk of danger (refer to this
manual for specific Warning or Caution
information)
Earth (ground) terminal
Equipment protected throughout by
double insulation or reinforced
insulation
Category III 1000 V overvoltage
protection
Category IV 600 V overvoltage
protection
CAT III
1000 V
CAT I V
600 V