Keysight E4981B User Manual page 106

Preparation for Accurate Measurement (Executing Correction)
Obtaining Correction Data
Measurement procedure
Step 1.
Connect the standard for the LOAD correction to the test fixture.
Step 2. Press [Meas Setup].
Step 3. Press the CORRECTION softkey to display the correction page.
Step 4. Use the cursor keys to select the LOAD field.
Step 5. Press the MEAS LOAD softkey. The data for the LOAD correction is then
measured.
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Step 6.
When measurement of the data for LOAD correction is successfully completed,
the LOAD correction turns to ON.
If the difference between the measured value and definition value of the
standard for the LOAD correction exceeds 10% (not suitable for the data for
LOAD correction), the warning message "Out of limit" appears.
Even if this warning message appears, data for the LOAD correction is still
used. However, it is recommended to confirm that the connection between
the test fixture and the UNKNOWN terminal as well as the measurement
procedure are correct.
If a measurement failure occurs while measuring the data for correction, the
error message "Correction Meas Aborted" appears.
If this error occurs, the data used for correction before the measurement
remains without change.
Step 7. Use the cursor keys to select the LOAD RNG field.
Step 8.
Use the following softkeys:
Softkey
AUTO
FIX
When the load range is set at FIX, the selected measurement range is used
at the LOAD measurement.
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During the measurement, an "LOAD measurement in progress" message is
shown on the display.
When the measurement has finished, the "LOAD measurement in progress"
message disappears.
During the measurement, the ABORT softkey is shown. Use this key when
you want to abort load correction.
Function
Turns ON the auto-ranging function when load correction is executed.
Turns OFF the auto-ranging function.
Keysight E4981B 120 Hz/1 kHz/1 MHz Capacitance Meter