Safety concerns
This instrument can produce high current, high power outputs that can cause heating of
connectors and wires. Always use wires and connectors that are rated for the maximum
current ratings of the instrument. Failure to provide correctly rated wires and connectors can
result in a fire.
To protect sensitive devices under test, consider using external fuses or other current
limiting devices. Failure to provide current limit devices may result in damage to sensitive
devices under test.
When using 4-wire (sense), if a sense lead becomes disconnected, current in excess of the
instrument ratings can flow. Consider using external resistors to connect HI to sense HI and LO to
sense LO at the instrument terminals to mitigate this risk. 100 KΩ resistors are recommended.
Contact information
If you have any questions after you review the information in this documentation, please contact your local
Keithley Instruments office, sales partner, or distributor. You can also call the corporate headquarters of
Keithley Instruments (toll-free inside the U.S. and Canada only) at 1-800-935-5595, or from outside the U.S. at
+1-440-248-0400. For worldwide contact numbers, visit the Keithley Instruments website (tek.com/keithley).
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