ii
ELECTRICAL SAFETY CONSIDERATIONS
GENERAL
The
product
an
d related d
ocume
ntati
on
must be reviewed
lo
r familiari
za
t
io
n
with
safely markings and i
nstr
uc
tion
s
before operation.
Thi
s
produ
ct
is a
Sa
fety Class I ins
trument
(provided with a
protective earth terminal ).
BEFORE APPLYING POWER
Verify
thai
the
product
Is
set to match the avaUable line
voltage and the correct fuse
Is
Installed. Refer to
Se<:
tion
II
.
Inslallal
ion
.
SAFETY EARTH GROUND
An
unlnterruplible
sa
lety
ea
rth
ground
must
be
provided
from the main power source to the product Input wiring
terminals, power
co
rd, or supplied
power
co
rd
se
t
SAFETY SYMBOLS
WA
RNIN
G
I
nstruction
manual s
ymbol
: the
produc
t will
be marked with this
symbol
when
it is
neces
~
sa
ry f
or
the user to refer
to
the Instruction
ma
nua
l.
Indicates hazar
dous
'o'0
1l8
g85.
Indicates earth (
ground
) terminal.
The
WARNING
sign denol@s R hHLard
II
cHlIs Attenllon
10
a
procedure
,
practIce
,
or
the
like
. whrch,
11
not cOl/ecUy
perlormod
or
adhered
10
.
could
resull
rn
personal Inl
ury
Do
not proceed
beyond
a
WARNING
sign
unlll
the Indicated
cond
ili
ons
are
fully
under-
stood
and mel
CAU
TI
ON The
CAU
T
ION
sign
deno
t
es
a hazard. II calls
attention 10 an operating procedur
e,
prac-
tice,
or
the like, whic
h.
if
not
correctly
per-
formed
or
adhered t
o,
co
uld result in damage
to
or
destruct
io
n 01 part
or
all of the
pr
oduc
t
Do not
pro
ceed beyond a
CAUTION
sign
un
tilih
e in
dic
ated
conditio
ns a
re
fully
und
er-
stood and met.
WARNING
Any
inTer
ruption
01
the protective grounding
co
n
ductor
InS
Ide
Or
ou
tSi
de
Ihe
InstlUment
or
disconnecting the
protective earth terminal
Will
cause a potential shock hazard
that could result
In personal Injury
Grounding
one
con
-
ductor
01
a
two
conductor
outlet
IS
not
sulliclenl
protection
Whenever
It
IS
likely that the protection has beall Impaired.
the rnslrument must be made inoperaTive and
be
secured
against any
unintended operation.
If thiS instrument Is to be
energlled
VU
t
an
autotranslormer
lor voltage
reduChon make sure the common
tarmlnalls
connec
ted to the
n811
tral earthed pole 01 the powel source
Servicing instructions !'IIe lor use
by
servl
ctl
-trarned
pe
rson·
net
only
To
aVOid
dangerous electnc shock,
do
not perform
any
serviCing unless qualified to
do
so
Adjustments
dcscnbcd
In the manual
lire
perlormed
Wi
th
power
slJpplled to the rnstrlJrnent while protective covers are
removed Energy
available
al
many pornts may,
1\
contacted,
result
rn
personal Injury
CapaCitors
rnslde the rnslrument may slill be charged evon II
Ihe Instrument has been disconnected from
It
s sour
ce
01
supp
ly
For continued protect
IO
n aQalllslthe life hazard, replace the
line
fuse, s
only
Wllh
250V
fusc; S
01
thesamecurrenl
rilling
flm!
typto!
lor
eXflmpie, nCllmal blow,
Ilmcdelay.elc
Do
not
use repaired !uses
or
short crrculted luseholders
From 1 8 kllovollS
10
12 kilovolts dc
IS
present
on
the anode
01
the la!lel tube
11
1 the 5518A
ExerC
I
se
extreme caut
IOn
when working InSide the instrument Tha
high
voltage
could
CRUse
sorrous
pelsonalln
lury
il
contacted AnyadJilstments
perlormed should
he
by service trarned perSOnnel only.
LASER HEAD SAFETY CONSIDERATIONS
CAUTION
LASER
RADIATtON
IS
EMITTED
FROM
THE
APERTURE ON THE SS18A LASER HEAD
AS
ILLUSTRATED ON THE
FOLLOWING
PAGE
.
DO
NOT
STARE
INTO
BEAM
.
THIS
PRODUCT IS A
CLA
SS
II
LASER PRODUCT CONFORMING
TO
FEDERAL
BUREAU
OF
RADtOLOGICAL
HEALTH
REGULATIONS
21
CFR 1040.10 AND
lD40
.
11
AND
TO
INTERNATIONAL
LASER SAFETY
REGULATIONS
. THE MAXIMUM
RADIANT
POWER
OUTPUT
IS 1
MILL
IWATT,
THE
PULSE
SPECIFICATION
IS
CONTINUOUS
WAVE, THE LASER
MEDIUM
IS HELIUM-NEON, AND
THE
WAVELENGTH
IS 632.
991
NANOMETRES
,
LASER
RADIATION
IS ACCESSIBLE
WHEN
THE
5518A COVER IS REMOVED
AND
THE TEST-NORM SWITCH,
A1S1 , IS IN
THE
TEST
POSITION
.
USE
OF
C
ONTROLS
OR
ADJUSTMENTS
OR PERFORMANC
EOF
PROCEDURES OTHER
THAN
THOSE SPECIFIED
HEREIN
MAY
RESULT
IN
HAZARDOUS
RADIATION
EXPOSURE.
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