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34401A User’s Guide iii
Safety Information
General
Do not use this product in any manner not
specified by the manufacturer. The protec-
tive features of this product may be
impaired if it is used in a manner not speci-
fied in the operation instructions.
Do not install substitute parts or perform
any unauthorized modification to the prod-
uct. Return the product to an Agilent Tech-
nologies Sales and Service Office for service
and repair to ensure that safety features are
maintained.
Ground the Instrument
If your product is provided with a ground-
ing-type power plug, the instrument chassis
and cover must be connected to an electri-
cal ground to minimize shock hazard. The
ground pin must be firmly connected to an
electrical ground (safety ground) terminal at
the power outlet. Any interruption of the
protective (grounding) conductor or discon-
nection of the protective earth terminal will
cause a potential shock hazard that could
result in personal injury.
Cleaning
Clean the outside of the instrument with a
soft, lint-free, slightly dampened cloth. Do
not use detergent or chemical solvents.
Safety Symbols
WARNING
Main Power and Test Input Dis-
connect: Unplug instrument from
wall outlet, remove power cord,
and remove all probes from all
terminals before servicing. Only
qualified, service-trained person-
nel should remove the cover from
the instrument.
WARNING
Line and Current Protection
Fuses: For continued protection
against fire, replace the line fuse
and the current-protection fuse
only with fuses of the specified
type and rating.
WARNING
Front/Rear Switch: Do not
change the position of the
Front/Rear switch on the front
panel while signals are present on
either the front or rear set of ter-
minals. The switch is not intended
as an active multiplexer. Switch-
ing while high voltages or cur-
rents are present may cause
instrument damage and lead to
the risk of electric shock.
Earth Ground
Chassis Ground
Risk of electric shock
Refer to manual for addi-
tional safety information
Alternating Current
On supply
Off supply
‘In’ position of bi-stable push
switch
‘Out’ position of bi-stable
push switch
CAT II (300V)
IEC Measurement Category II.
Inputs may be connected to
mains (up to 300 VAC) under
Category II overvoltage condi-
tions.