Keysight E4980AL - Shielding

Keysight E4980A/AL Precision LCR Meter 207
Measurement Procedure and Examples
Measurement Contacts
7-
Shielding
Shielding minimizes the effects of electrical noise picked up by the test leads.
Therefore, connect a shield plate to the outer shield conductors of the
four-terminal pair test leads as shown in Figure 7-15.
Figure 7-15 Guard shield