Fluke 5520A Operator's Manual page 69

G
To avoid shock hazard, connect the factory supplied
three-conductor line power cord to a properly grounded
power outlet. Do not use a two-conductor adapter or
extension cord; this will break the protective ground
connection.
Use the rear-panel CHASSIS GROUND terminal for a
protective grounding wire if there is any question about
the effectiveness of instrument earth grounding
through the line power cord ground wire.
The CHASSIS GROUND terminal is internally grounded to the chassis. If the 5520A is the
location of the ground reference point in a system, this binding post can be used for connecting
other instruments to earth ground. Refer to "Connecting the Calibrator to a UUT" in Chapter 4,
"Front Panel Operation" for details.
H
The AC Power Input Module provides a grounded three-prong connector that accepts the line
power cord, a switch mechanism to select the operating line voltage, and a line power fuse. See
Chapter 2, "Preparing for Operation" for information on selecting the operating line voltage, and
fuse rating and replacement information.
Warning
Features
Softkey Menu Trees
3
3-11