Tektronix Keithley 4200A-SCS - Page 100

Section 5: Using a Keysight 4284/4980A LCR Meter Model 4200A-SCS Prober and External Instrument Control
5-4 4200A-913-01 Rev. A December 2020
4-wire remote sensing
The following figure shows 4-wire remote sense connections. The 7078-TRX-BNC is a 3-lug
triaxial-to-BNC adapter. As shown in the figure, connect the adapters to the 3-slot triaxial connectors,
and then use a 7051-5 BNC cable to make the connections to the Model 4284A or 4980A.
Figure 72: 4-wire remote sense connections to equipment using triaxial connectors
The figure below shows the equivalent circuit for the adapter.
Figure 73: 7078-TRX-BNC equivalent circuit