Table 5-3 U1253B Measurement Readings For Fuse Checking - Agilent Technologies U1253B User's And Service Manual

U1253B User's and Service Guide
3 To test Fuse 1, place the tip of the test probe on the right half
of input terminal
touches the metal inside the input terminal, as shown in
Figure 5- 7.
4 To test Fuse 2, place and touch the tip of the test probe on
the right half of input terminal
touches the metal inside the input terminal.
5 Observe the reading on the instrument's display. Refer to
Table 1 below for the possible readings that could appear).
6 Replace the fuse when OL is displayed.

Table 5-3 U1253B measurement readings for fuse checking

Current input
Fuse Fuse rating
terminal
1
2
. Ensure that the probe tip
. Ensure that the probe tip
Fuse OK
(approximately)
440 mA/1000 V 6.2 MΩ
0.06 Ω
11 A/1000 V
Maintenance
Replace fuse
Displayed readings
OL
OL
5
133