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Model 2657A High Power System SourceMeter® Instrument Reference Manual Section 9: Frequently asked questions (FAQs)
2657A-901-01 Rev. B/December 2012
9-9
Where can I get the LabVIEW driver?
The latest NI
TM
LabVIEW
TM
driver is available from the
(
http://www.keithley.com/support
).
Can I convert to coaxial cables?
Use the optional cable assembly (Keithley Instruments model number SHV-CA-553), which converts
a high-voltage triaxial connector to a safe high-voltage (SHV) connector. See "Using coaxial
connections (SHV)" in the Model 2657A User's Manual for details.
How do I connect LO terminals of multiple SMUs together?
To connect the SENSE LO and LO terminals of the Model 2657A to other source-measure units
(SMUs), use the Model 2657A-LIM-3 LO Interconnect Module. For more details, refer to the Model
2657A-LIM-3 LO Interconnect Module documentation (PA-1063).
If you are connecting to a lower-voltage SMU, you must first connect the lower-voltage SMU to a
Keithley Instruments Model 2657A-PM-200 Protection Module using triaxial connections only.
Compatible lower-voltage SMUs include the Models 2611A, 2611B, 2612A, 2612B, 2614B, 2634B,
2635A, 2635B, 2636A, and 2636B, 4200-SCS, 4200-SMU, and 4210-SMU. For more information
about the Model 2657A-PM-200, refer to the Model 2657A-PM-200 Protection Module documentation
(PA-1055).
The Model 2657A High Power System SourceMeter instrument and its associated cabling are
designed to be safe when operated correctly in a 3000 V system. They are only warranted to the
maximum voltage and current ratings of the instrument. Connecting two Model 2657A instruments
in parallel or in series may result in voltages or power levels that exceed the safety mechanisms.
This increases the risk of instrument damage and the possibility of personal injury or death due to
electric shock. The user assumes all of the associated risks of combining the outputs of two or more
Model 2657A instruments.
What should I do if I get an 802 interlock error?
You will receive error code 802, "OUTPUT blocked by interlock," if you:
•
Disengage the interlock when the Model 2657A output is already on
•
Attempt to turn on the Model 2657A output when the interlock is disengaged
To recover from this error, properly engage the interlock using a safe test fixture, and then turn on the
Model 2657A output.
NOTE
WARNING
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