Keysight Technologies E4360 Series, Service Manual, Page: 4 / 75

4 Series E4360 Service Guide
Safety Notices
The following general safety
precautions must be observed during
all phases of operation of this
instrument. Failure to comply with
these precautions or with specific
warnings or instructions elsewhere in
this manual violates safety standards
of design, manufacture, and intended
use of the instrument. Keysight
Technologies assumes no liability for
the customer's failure to comply with
these requirements.
General
Do not use this product in any manner
not specified by the manufacturer. The
protective features of this product
may be impaired if it is used in a
manner not specified in the operation
instructions.
Before Applying Power
Verify that all safety precautions are
taken. Make all connections to the
unit before applying power. Note the
instrument's external markings
described under "Safety Symbols"
Ground the Instrument
This product is a Safety Class 1
instrument (provided with a protective
earth terminal). To minimize shock
hazard, the instrument chassis and
cover must be connected to an
electrical ground. The instrument
must be connected to the ac power
mains through a grounded power
cable, with the ground wire firmly
connected to an electrical ground
(safety ground) at the power outlet.
Any interruption of the protective
(grounding) conductor or
disconnection of the protective earth
terminal will cause a potential shock
hazard that could result in personal
injury.
Fuses
Only fuses with required rated current,
voltage, and specified type (normal
blow, time delay, etc.) should be used.
Do not use repaired fuses or short-
circuited fuseholders. To do so could
cause a shock or fire hazard.
Do Not Operate in an
Explosive Atmosphere
Do not operate the instrument in the
presence of flammable gases or
fumes.
Do Not Remove the
Instrument Cover
Only qualified, service-trained
personnel who are aware of the
hazards involved should remove
instrument covers. Always
disconnect the power cable and any
external circuits before removing the
instrument cover.
Do Not Modify the Instrument
Do not install substitute parts or
perform any unauthorized
modification to the product. Return
the product to a Keysight Sales and
Service Office for service and repair
to ensure that safety features are
maintained.
In Case of Damage
Instruments that appear damaged or
defective should be made inoperative
and secured against unintended
operation until they can be repaired
by qualified service personnel.
A CAUTION notice denotes a hazard. It
calls attention to an operating
procedure, practice, or the like that, if
not correctly performed or adhered to,
could result in damage to the product
or loss of important data. Do not
proceed beyond a
CAUTION notice
until the indicated conditions are fully
understood and met.
A WARNING notice denotes a hazard.
It calls attention to an operating
procedure, practice, or the like that, if
not correctly performed or adhered to,
could result in personal injury or
death. Do not proceed beyond a
WARNING notice until the indicated
conditions are fully understood and
met.
Safety Symbols
Direct current
Alternating current
Both direct and
alternating
current
Three phase alternating
current
Earth (ground) terminal
Protective earth ground
terminal.
Frame or chassis
terminal
Terminal is at earth
potential.
Neutral conductor on
permanently installed
equipment
Line conductor on
permanently installed
equipment.
On supply
Off supply
Standby supply. Unit is
not completely
disconnected from ac
mains when switch is off
In position of a bi-stable
push switch
Out position of a bi-
stable push switch
Caution, risk of electric
shock
Caution, hot surface
Caution, refer to
accompanying
description
CAUTION
WARNING