Getting Started
AFG3000 Series Quick Start User Manual 13
Floating Ground
Since the common (input and output channel common) of the arbitrary/function generator is electrically isolated from the
chassis ground (the instrument chassis and ground line of the AC connector), you can make a floating connection between
the instrument and other equipment.
All the signal output connectors are connected to the common ground, and the remote interface connector is connected to
the chassis ground.
CAUTION. When you make a floating connection, review the following precautions:
The maximum rated voltage between the chassis ground and common ground is 42 Vp-p (DC + peak AC). When the poten-
tial voltage between the chassis ground and common ground goes over 42 Vp-p, the internal protective circuit will be acti-
vated to protect the circuits. However, higher voltage may cause the internal circuits in the instrument to be damaged.
When a potential voltage exists between the chassis ground and common ground, a short circuit from output to ground
causes the instrument internal fuse to open and the output is stopped. If the fuse opens, you need to contact your local
Tektronix Service Support.
When a potential voltage exists between the common ground and chassis ground, short-circuiting between them may lead
to excessive current flow and the internal or external circuits may be damaged.
Chassis ground
Common ground
CH2
CH1
50 Ω
50 Ω
1 MΩ