204                 Keysight E4980A/AL Precision LCR Meter 
Measurement Procedure and Examples
Correction Functions
7-
Correction Functions
The E4980A/AL features powerful correction functions: Cable Length 
correction as well as OPEN, SHORT, and LOAD corrections. These correction 
functions are used to correct additional error due to the test fixture and the test 
leads. Table 7-2 lists the correction functions with a brief description, and 
Table 7-3 shows examples of using correction functions. 
Table 7-2  Correction functions
Correction Function Description Typical Usage
Cable Length 
Correction
Compensate phase shift error 
due to the 1, 2, or 4 m test 
leads.
• Measurements using 
the Keysight 
16048A/B/C/D/E or 
Keysight 16334A
OPEN Correction Compensate stray admittance 
due to the test fixture.
• High-impedance 
measurements
SHORT Correction Compensate residual 
impedance due to the test 
fixture.
•Low-impedance 
measurements
OPEN/SHORT 
Correction
Compensate the stray 
admittance and residual 
impedance due to the test 
fixture.
• Precise measurements
OPEN/SHORT/LOAD 
Correction
Compensate any error due to 
the test fixture and test leads 
by using the standard.
•Measurements to be 
referenced to a 
standard
•Measurements using a 
test fixture that has 
complicated 
impedance 
characteristics