Model 4200A-SCS Setup and Maintenance User's Manual Section 2: Installation
4200A-908-01 Rev. A December 2020 2-13
3. Connect the other end of the supplied line cord to a grounded ac line power receptacle.
4. Turn the power ON using the front-panel power switch.
Although the instrument does not sense power line frequency at power-up, Keithley ships your
4200A-SCS with line frequency settings that match the line frequency that was specified on the
order — either 50 Hz or 60 Hz. However, if necessary, you can change the line frequency setting
using the KCon utility. Refer to Keithley Configuration Utility (on page 3-1).
Operating the 4200A-SCS with the wrong line frequency setting may result in noisy readings
because the line frequency setting affects SMU line frequency noise rejection.
5. Allow the instrument to warm up for at least 30 minutes to achieve rated measurement accuracy.
Powering off the 4200A-SCS
The recommended method to power off the 4200A-SCS is to press the power switch briefly. This
allows Microsoft Windows to complete its standard shut down process.
If you need to power off the instrument immediately, you can hold the power button down for a few
seconds. This shuts down the instruments and computer immediately.
When the instrument is shut down, the power switch is no longer illuminated.
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