Use EIS Initialize Session.vi to self-calibrate a SMU based on its internal temperature.

Before you begin, you must disconnect the DUT during self-calibration. If the DUT is connected to the SMU during self-calibration, an error occurs.
Figure 4. EIS Initialize Session.vi


  1. Use the NI Example Finder to open EIS Test with Plot.vi.
    1. In the LabVIEW window, select Help » Find Examples.
      The NI Example Finder window loads.
    2. Select Toolkits and Modules » Battery Cell Quality » EIS Test with Plot.vi.
      The front panel of the VI loads.
  2. Switch to the block diagram and locate EIS Initialize Session.vi.
  3. Right-click the Calibration Settings input terminal and select Create Constant.
  4. Specify when the SMU performs self-calibration.
    Cluster Component Description Example Value
    Temperature Delta Specify the change that would require the SMU to self-calibrate. The change is in degrees Celsius. 2
    Days to Calibration Specify the number of days between self-calibration runs. 3
  5. Save and run EIS Test with Plot.vi.
    If the SMU self-calibrates before taking measurements, the total test time for EIS tests or ACIR tests is longer.
    The Ran Self Cal indicator on the front panel of the test VI illuminates after the test run if the SMU ran self-calibration first.
If self-calibration occurs more than twice per day, check the location of the SMU. Verify that the SMU is not experiencing large temperature variations.