Keysight B2980B Series - Page 101

Keysight B2980B User’s Guide, Edition 1 101
How to Perform Measurement
Voltage Measurement
Figure 3-10 Guarding
Never connect the Guard terminal to any output, including circuit common,
chassis ground, or any other guard terminal. Doing so will damage the
instrument.
V
Buffer amplifier
Guard
Voltage
under test
Common
Output
resistance
V
Insulation
resistance
Voltage
under test
Common
Output
resistance
Cable
capacitance