High Voltage SourceMeter Instrument Reference Manual Section 4: Sourcing and measur
2470-901-01 Rev. A / May 2019 4-19
Using TSP commands:
To set the output-off state to normal, send the command:
smu.source.offmode = smu.OFFMODE_NORMAL
To set the output-off state to zero, send the command:
smu.source.offmode = smu.OFFMODE_ZERO
To set the output-off state to high impedance, send the command:
smu.source.offmode = smu.OFFMODE_HIGHZ
To set the output-off state to guard, send the command:
smu.source.offmode = smu.OFFMODE_GUARD
Source-measure overview
Using the 2470, you can perform the following operations:
• Source voltage and measure current, voltage, resistance, or power
• Source current and measure voltage, current, resistance, or power
• Measure voltage, current, resistance, or power
Make sure you select functions before you make changes to other instrument settings. The options
that you have for settings depend on the functions that are active when you make the changes. If
you make a change that is not compatible with the active functions, you may get unexpected results
or you may receive an event message. Also note that when you select a different function, the
instrument clears the buffer.
When you are making measurements, you can set the measurement range to a specific range or to
automatic ranging. If you select a specific range, for the best accuracy, use the lowest possible range.
When Auto is selected, the instrument selects the most sensitive range to make a measurement or
will change automatically as the measured value of the device changes.
The operating boundaries for the source-measure operations are provided in Operating boundaries
(on page 5-4).
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