Keithley 7011-S Instruction Manual page 6

Do not exceed the maximum signal levels of the instruments and ac-
cessories, as defined in the specifications and operating informa-
tion, and as shown on the instrument or test fixturn panels, or
switching card.
Instrumentation and accessories shall not be connected to humans.
Before performing any maintenance, disconnect the line cord and
all test cables.
When fuses are used in a product. replacc with same type and rating
Car continued protection against fire hazard.
Chassis connections most only be used as shield connectioos for
measuring circuits, NOT as safety earth ground connections.
If you are using a test fixture, keep the lid closed while powcr is ap-
plied to the device under tat. Safe operation requires the USC of a
lid interlock.
To maintain protection from electric shock and fire, replacement
components in mains circuits, including the power transformer, test
leads. and inout iacks. must be ourchased from Keithlev lnsm-
mats. Standard fuses, with applicable national safety approvals,
may be used if the rating and type arc the same. Other components
that are not safety related may be purchased from other suppliers as
long as they are equivalent to the original component. (Note that sc-
leaed parts should be purchased only through Kcithley Instruments
to maintain accuracy and functionality of the product.) If you arc
unsure about the applicability of a replacement component, call a
Ifa@. screw is present, connect it to safety earth ground using the
wire recommended in the user documentation.
symbol on an instrument indicates that the user should re-
fer to the operating instructions located in the manual.
Keithley Instruments oflicc for information.
To clean the instrument. USC a dame cloth or mild. water based
cleaner. Clean the exterior of the instrument only. Do not apply
cleaner directly to the instrument or allow liquids to enter or spill
on the instmmcnt.
The A
symbol oo an instrument shows that it can source or mea-
sure 1000 volts or more, including the combined effect of normal
and common mode voltages. Use standard safety precautions to
avoid personal contact with these voltages.
The WARNING heading in a manual explains dangers that might
result in personal injury or death. Always read the associated infor-
mation very carefully before performing the indicated procedure.
The CAUTION heading in a manual explains hazards that could
damage the instrument. Such damage may invalidate the warranty.