Fuse Replacement; Ac Line Fuse; Power Supply Fuses; Rack Installation - Fluke 5220A Instruction Manual

5 220A
Instruction Manual

2-4. Fuse Replacement

2-5.

AC Line Fuse

The ac line fuse is accessible by way of a rear-panel fuse holder located to the left of the
input power connector. If fuse replacement is required, disconnect the 5220A from line
power and remove the fuse cap and fuse (twist the fuse cap ccw using a screw driver).
Select and install a replacement fuse whose rating is compatible with the local line
voltage.
1. 100 to 120 V ac use fuse type MDA 3 A
2. 200 to 240 V ac use fuse type MDX 1.5 A
2-6.

Power Supply Fuses

Each of the secondary windings on the power transformer is fused to protect the power
supplies from damage in the event of an overload. These fuses, six in all, are internal to
the 5220A and are not available to the operator. Details for replacement by qualified
personnel are given in Section 4 of this manual.

2-7. Rack Installation

The 5220A is designed for either bench-top use or for installation in a standard 19-inch
equipment rack using the accessory Rack Mounting Kit (John Fluke P/N M08-205-600).
Chassis slides (John Fluke P/N M00-280-610) can also be installed to facilitate access to
the instrument when it is installed in an equipment rack. Information regarding the
installation of the rack-mounting accessories is included in Section 6.

2-8. Operating Features

The function and location of all 5220A controls, indicators, and connectors are shown in
Figure 2-1 and described in Table 2-1.
2-2