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 (DC)
Alternating current (AC)
Earth (ground) terminal
Equipment protected throughout by
double insulation or reinforced
insulation
Fuse
Keysight U1271A/U1272A User's Guide
Caution, risk of electric shock
Caution, risk of danger (refer to this
manual for specific Warning or Caution
information)
Category III 1000 V overvoltage
CAT III
protection
1000 V
Category IV 600 V overvoltage
CAT IV
protection
600 V
Battery, general
3