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.
DC (Direct current or voltage)
Earth (ground) terminal
Fuse
CAT III
Category III 600 V overvoltage protection
600 V
Keysight U1231A, U1232A, and U1233A User's Guide
AC (Alternating current or voltage)
Equipment protected throughout by double
insulation or reinforced insulation
Battery, general
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