Keysight B2980B Series - Page 95

Keysight B2980B User’s Guide, Edition 1 95
How to Perform Measurement
Voltage Measurement
Voltmeter connector’s inner shield is internally connected to Guard or Common as
shown in Figure 3-6. The internal connection must be made properly. It must be
connected to Guard for the guarded voltage measurement. And it must be
connected to Common for the unguarded voltage measurement. Incorrect setup
causes measurement errors. See “Guarded and Unguarded Connections” on
page 98 for more information.
Figure 3-7 Guarded Voltage Measurement Connection
Vs
Shield
Triaxial cable
Triaxial bulkhead connector
Chassis ground
Guard shield
Banana-to-alligator clip cable
Common is connected to chassis ground by using Banana-to-lug cable.
V
Vs
Safety
Earth Ground
Common Chassis
Ground