•
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SAFETY
SUMMARY
The following generalsafety precautions must
be
observed during
all
phases
of
operation, service,
and
repair
of
this instrument.
Failure
to
comply with these precautions
or
with specific warnings elsewhere
in
this manual violates safety standards
of
dnign,
manufacture,
and
intended use
of
the instrument. Hewlett-Packllrd Company assumes
no
liability
for
the
customer's failure to
comply
with these requirements.
BEFORE APPLYING POWER
Verify thatthe product is set
to
match the
available
line
voltage.
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 cabinet must
be
connected to
an
electrical ground.
The
instrument must
be
connected tothe
ac
power supply mains through a three-conductor power
cable,
with
the third 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.
If
the instrument
is
to be
energized
.via
an external autotransformerforvoltage reduction,
be
certain
that
the autotransformer common terminal is
connected
to
the
neutral !earthed pole)
of
the
ac
power lines
(supply mains!. This instrument
is
equipped with a line filter
·to
reduce electromagnetic interference
(EMii,
and
must
be
connected
to
a property grounded receptacle
to
minimize
EMI.
FUSES ·
Fuses are contained inside the unit,
and
are
not
user-
replaceable.
Onlytrained service
personnel
should
replace
blown
fuses, and only after identifying
and
correcting the
problem
which caused
the
fuse(s)
to
blow.
DO NOT OPERATE
IN
AN EXPLOSIVE
ATMOSPHERE
Do
not
operate the instrument in the
presence
of flammable
gases or fumes.
KEEP
AWAY
FROM
LIVE CIRCUITS
Operating personnel
must
not
remove instrument
covers.
Component replacement and internal
adjClstments
must
be
made
by
qualified
service
pei-sonnel.
Do
not
replace
components
with
the power
cable
connected. Under certain conditions,
dangerous voltages may exist
even
with the power
cable
removed.
To
avoid injuries, always disconnect power,
discharge
circuits and remove external voltage sources before touching
components.
DO NOT SERVICE OR
ADJUST
ALONE
Do
not
attempt internal service oradjustment
unless
another
person, capable of rendering first aid and resuscitation,
is
present.
DO
NOT EXCEED
INPUT
RATINGS
Operation at line voltages or frequencies in
excess
of
those
stated
on
the
data
plate
maycause
leakage
currents
in
excess
of
3.5
mA
peak
.
SAFETY SYMBOLS
Instruction manual symbol: the product will
be marked with this symbol when it is
necessary
for
the user
to
refer to the
instruction manual (refer to
Table
of
Contents).
Indicates hazardous voltages.
@
or
.I.
Indicate earth (ground) terminal.
or
Warning
0
(CAUTION!
or
Caution
I
The WARNING sign denotes a hazard.
It
calls attention
to
aprocedure, practice,
or
the like, which,
if
not correctly performed
or adhered to, could result in personal
injury.
Do
not
proceed
beyond a
WARNING sign
until
the
indicated
conditions are fully understood
and
met.
The
CAUTION
sign denotes a hazard.
It
calls attention
to
an
operating procedure,
or
the like, which,
if
not correctly
performed or adhered
to,
could result in
damage
to
or
destruction
of
part
or
all
of
the product. Do not proceed beyond a
CAUTION sign
until
the
indicated
conditions are fully understood
and
met.
DO NOT
CIRCUMVENT
SAFETY DEVICES
AC
mains powerexists
on
exposed terminals in various locations
in the mainframe and on the load modules.
To
protect the user
against the danger of electric shock, the unit is equipped with
a safety interlock that removes ac mains power when the
top
cover is removed. Do not attempt
to
defeat the function
of
the
safety interlock.
DO
NOT
SUBSTITUTE PARTS OR MODIFY
INSTRUMENT
Because
of
the danger
of
introducing additional
hazards,
do
not
install substitute parts
or
perform any unauthorized modification
to
the instrument. Return the instrument
to
a Hewlett-Packard
Sales
and Service Office for service and repair
to
ensure
that
safety features are maintained.
Instruments
which
appeardamaged
or
defective should
be
made inoperative
and
sscuredagainst unintendedoperation unrilthey
can
be
repaired
by
qualifiedservice personnel.
