Performing Open Correction; Performing Short Correction; Performing Load Correction - Keysight E4980A User Manual

Measurement Procedure and Examples
Correction Functions

Performing OPEN Correction

To perform an OPEN correction data measurement, set up an OPEN condition
where nothing is connected to the test fixture. While the OPEN measurement is
being performed, don't touch the test fixture or move your hands near it.
In the OPEN condition, Hp and Hc, and Lp and Lc are connected. For the
OPEN condition of the fixture, refer to the fixture's manual.

Performing SHORT Correction

To perform a SHORT correction data measurement, set up a SHORT condition
by using a shorting bar to short between the high terminal and low terminal of
the UNKNOWN terminals.
Figure 7-16
The shorting bar should have very low residual impedance, so be sure to use a
high-conductivity metal plate that does not easily corrode for the shorting
plate. Furthermore, it must be clean.
Figure 7-16 Sample Shorting Plate

Performing LOAD Correction

To perform LOAD correction data measurement, connect the LOAD standard to
the measurement contacts.
206
shows a sample shorting bar for the Keysight 16047E test fixture.
Keysight E4980A/AL Precision LCR Meter