Safety
Do not touch any object that could provide a current path to the common side of the
circuit under test or power line (earth) ground. Always make measurements with dry
hands while standing on a dry, insulated surface capable of withstanding the voltage
being measured.
When fuses are used in a product, replace with the same type and rating for
continued protection against fire hazard.
For safety, instruments and accessories must be used in accordance with the
operating instructions. If the instruments or accessories are used in a manner not
specified in the operating instructions, the protection provided by the equipment may
be impaired.
Do not exceed the maximum signal levels of the instruments and accessories.
Maximum signal levels are defined in the specifications and operating information and
shown on the instrument panels, test fixture panels, and switching cards.
Chassis connections must only be used as shield connections for measuring circuits,
NOT as protective earth (safety ground) connections.
If you are using a test fixture, keep the lid closed while power is applied to the device
under test. Safe operation requires the use of a lid interlock.
If a screw is present, connect it to protective earth (safety ground) using the wire
recommended in the user documentation.
The symbol on an instrument means caution, risk of hazard. The user must refer
to the operating instructions located in the user documentation in all cases where the
symbol is marked on the instrument.
The symbol on an instrument means warning, risk of electric shock. Use standard
safety precautions to avoid personal contact with these voltages.
The symbol on an instrument shows that the surface may be hot. Avoid personal
contact to prevent burns.
The symbol indicates a connection terminal to the equipment frame.
If this symbol is on a product, it indicates that mercury is present in the display
lamp. Please note that the lamp must be properly disposed of according to federal,
state, and local laws.
The
WARNING
heading in the user documentation explains hazards that might result
in personal injury or death. Always read the associated information very carefully
before performing the indicated procedure.
The
CAUTION
heading in the user documentation explains hazards that could
damage the instrument. Such damage may invalidate the warranty.
The
CAUTION
heading with the symbol in the user documentation explains
hazards that could result in moderate or minor injury or damage the instrument.
Always read the associated information very carefully before performing the indicated
procedure. Damage to the instrument 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. Standard fuses with applicable national safety approvals
may be used if the rating and type are the same. The detachable mains power cord
provided with the instrument may only be replaced with a similarly rated power cord.
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 to maintain accuracy and functionality of
the product). If you are unsure about the applicability of a replacement component,
call a Keithley office for information.
Unless otherwise noted in product-specific literature, Keithley instruments are
designed to operate indoors only, in the following environment: Altitude at or below
2,000 m (6,562 ft); temperature 0 °C to 50 °C (32 °F to 122 °F); and pollution degree
1 or 2.
To clean an instrument, use a cloth dampened with deionized water 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., a 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.
Safety precautions as of June 2018.
