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 functionality of the product). If you are unsure about the applicability of a
replacement component, call a Keithley Instruments office for information.
To clean an instrument, remove power from the instrument. Use a damp cloth or mild,
w ater-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 and servicing.
Safety precaution revision of January 2013.
Power and environmental specifications
For indoor use only.
Power supply
100 V AC/120 V AC/220 V AC/240 V AC, 50 Hz or 60
Hz
Operating altitude
Max imum 2000 m (6562 ft ) abov e sea level
Operating
temperature
0 °C to 40 °C (32 °F to 104 °F), full accuracy to 80 %
relativ e humidity at up to 35 °C (95 °F), non-
condensing
Storage temperature
-20 °C to 70 °C (-4 °F to 158 °F), 5 % to 95 % relativ e
humidity at up to 40 °C (+104 °F) and 5 % to 60 % RH
abov e 40 °C (+104 °F) up to 70 °C (+158 °F)
Pollution degree
2
Carefully consider and configure the appropriate output-off
state, and source and compliance levels before connecting the
instrument to a device that can deliver energy. Failure to
consider the output-off state and source and limit levels may
result in damage to the instrument or to the device under test.
