To make an ohms measurement:
1. Press the SRC key to select the source function.
2. Set the output source, as indicated by the units in the source field on the display. The flashing
digit (cursor) indicates which value is presently selected for editing.
3. Move the cursor to the digit to change, then press the navigation wheel to enter the EDIT mode.
4. Use the RANGE keys to select a range that accommodates the value you want to set. For best
accuracy, use the lowest possible source range.
5. Enter the source value.
6. Press the ENTER key or the navigation wheel to complete editing
7. Press the LIMIT key to edit the voltage or current limit. When programming a voltage limit, set the
voltage limit above the maximum expected voltage across the resistor under test. When
programming a current limit, set the current limit at or above the maximum expected current
through the resistor under test.
8. Move the cursor to the digit to change, then press the navigation wheel to enter the EDIT mode,
as indicated by the EDIT indicator.
9. Enter the limit value, then press the ENTER key or the navigation wheel to complete editing.
10. Press the MEAS key to display voltage or current.
11. Make sure that AUTO measurement range is on (press the AUTO key if needed).
12. Press the MEAS key as many times as needed to display ohms.
13. Press the OUTPUT ON/OFF control to turn the output on.
14. View the displayed reading (press the TRIG key if necessary). When finished, press the OUTPUT
ON/OFF control again to turn the output off.
Remote ohms command
Use the smuX.measure.r() function to get a resistance reading.
The programming example below illustrates how to get a resistance reading from SMU A:
reading = smua.measure.r()
See Remote source-measure commands (on page 2-10) for more commands to set up source and
measure functions, and Introduction to TSP operation (on page 7-1) for more details.
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