Keysight E4981A 120 Hz/1 kHz/1 MHz Capacitance Meter 93
Preparation for Accurate Measurement (Executing Correction)
Overview of Correction Function
Cable correction
Cable correction avoids measurement error due to the differences of each
cable when you use a cable length of 1 m or 2 m in 1 MHz.
Measurement error due to an individual cable is proportional to the square of
the test frequency. Accordingly, the difference of each test cables may not be
ignored at high frequencies, such as 1 MHz. When the E4981A is shipped from
the factory, it contains typical correction data for both 1 m and 2 m cables.
Cable correction can compensate the error for your own cable.
The following equipment are required for cable correction:
Open Termination 42090A Open termination (do not use BNC adapter as an
alternative)
Load Standard 6383A 100 pF (capacitor) or 42037A 1 kΩ (resistor)
In Option 002, 1 MHz frequency is not available.
Cable correction is not required in the following conditions:
• For 120 Hz and 1 kHz measurement frequency.
• When Open, Short, and Load correction is executed at 1 MHz
measurement frequency.
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