2 Disassembly and Repair
To Replace a Current Input Fuse
48 34450A Service Guide
To Replace a Current Input Fuse
Both the 100 mA and the 10 A current input terminals are fuse
protected. The fuse for the 100 mA input terminal is located on the rear
panel (refer to Keysight 34450A User’s Guide, Chapter 1). The fuse is a
0.4A 500 V fast acting 32
×6.3×6.3 mm fuse, Keysight part number 2110-
1503. If you have determined that the fuse is faulty, replace it with one
of the same size and rating.
The fuse for the 10 A current input terminal is located inside the
multimeter and requires partial disassembly of the multimeter. The fuse
is a 11 A fuse, Keysight part number 2110- 1402. If you have determined
that the fuse is faulty, replace it with one of the same size and rating.
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