8
If
or
is present, connect it to safety earth ground using the wire recommended in the user documentation.
The
symbol on an instrument indicates that the user should refer to the operating instructions located in the manual.
The
symbol on an instrument shows that it can source or measure 1000 volts or more, including the combined effect of normal and com-
mon 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 information
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.
Instrumentation and accessories shall not be connected to humans.
Before performing any maintenance, disconnect the line cord and all test cables.
To maintain protection from electric shock and fire, replacement components in mains circuits, including the power transformer, test leads,
and input jacks, must be purchased from Keithley Instruments. Standard fuses, with applicable national safety approvals, may be used if the
rating and type are 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 selected parts should be purchased only through Keithley Instruments to maintain accuracy and func-
tionality of the product.) If you are unsure about the applicability of a replacement component, call a Keithley Instruments office for informa-
tion.
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
to the instrument or allow liquids to enter or spill on the instrument. Products that consist of a circuit board with no case or chassis (e.g., data
acquisition board for installation into a computer) should never require cleaning if handled according to instructions. If the board becomes
contaminated and operation is affected, the board should be returned to the factory for proper cleaning/servicing.
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