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 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 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 Instruments. 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 Instruments to maintain accuracy and functionality of the product). If you are unsure
about the applicability of a replacement component, call a Keithley Instruments office for
information.
Unless otherwise noted in product-specific literature, Keithley Instruments 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 precaution revision as of June 2017.
