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removing switching cards. or making iotemtil chaogcs, socb as installing or nzmoviog jumpers.
Vu not touch soy object that could provide a con-cot path to tbc common side of the circuit
under test or power line (eatth) ground. Always
make measurements witb dry hands while
standing oo a dly, insulated surface capable of withstanding
tbc voltage bciog measured.
The instrument
and accessories most be used in accordance with its specifications
and op-
eratiog iostructioos
or tbe safety of the equipment
may be impaired.
Do not exceed the maximum
signal levels of the instruments
and accessories. as defined in
tbe speciticationr
sod operatiog
information,
and es show
on the instrument or test fixture
panels, or switcbiog
cant.
When fores are used in a product, replace with same type sod rntiog forcootioued
pmtectioo
against fire hazard.
Cbassir connections must only be used as shield coooectioos for me~suriog circoits, NOT as
safety eaflh ground connections.
If you are using II test fixture, keep the lid closed while power is applied to the device under
test. Safe operation requires tbe we of a lid interlock.
1ra@
screw is present, connect it to safety earth ground uaiog the wire recommended
in
the user documentation.
The
!
symbol on an iostroment
indicates that the user should refer to the operating
ill-
n
stmctions located io tbc manual.
The h
symbol on al iostmment shows that it CNI source or IIICRIIUII: loo0 volts or more, ill-
eluding the combined etTect of normal ad common mode voltages. Use stiuldarrl safety precau-
lions to avoid pcrsooal cootect with these voltages.
TIE WARNING
beading in A manual enplaios dangers that might result in personal injury or
death. Always read the associated information
wy
carefully
hcfore ptxformiog
the indicated
pC"CCdU~C.
The CAUTION
beading in a manual explains
hazards that could damage the instrument.
Such damage may invalidate the warrmty.
lostrumcntatioo
and accessories shall not be connected to humans.
Before performing
any maintenance,
disconnect the line cord and all test cables.
To maintain pmtcctioo
from electric shock and ftre, replacement components
in mains cir-
coils, including
the power transfouner,
test leads, and ioput jacks, must he purchased from
Keithley
Instruments. Standard fuses, with applicable national safety appmvals, may be used
if the ratiog sod type are the same. Other components that are not safety r&ted
may hc por-
chased from other suppliers as long as they are equivalent
to tbe original component.
(Note
that selected parts should be purchased only through Keithley
Iostmmcnts
to maiotain acco-
racy sod fonctiooality
of the product.)
If you we unsure about the applicability
of a replacc-
ment component,
call a Keithlcy
Instruments
office for information.
To clean an instrument.
use a damp cloth or mild, water based cleaner. Clean the exterior
of the instrument
only. Do not apply cleaner directly
tb the instrument
or allow liquids to
enter or spill on the instrument.
Products that consist of a circuit hoard with no case or cbas-
sis (e.g., data acquisition
board for installation
into a computer)
should neverrequire
clean-
ing if handled according
to instructiuns.
If the board becomes contaminated
sod operation
is affected. the hoard should he returned to the factory
for proper cleaninglserviciog.
tie". 2rB
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