Agilent Technologies B1500A Self-Paced Training Manual page 215

Advanced Options for CMU Calibration
Calibration
Reference Standard Values area provides the following entry fields used to set the reference
values of the open/short/load standard. If you use the standard, enter the reference values to
the entry fields.
OPEN Reference: Capacitance and Conductance. If you do not use the reference, enter 0 in the
both fields.
SHORT Reference: Inductance and Resistance. If you do not use the reference, enter 0 in the
both fields.
LOAD Reference: Inductance and Resistance
8-10