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

5 Maintenance

Table 5-3 U1253B measurement readings for fuse checking

Current input terminal Fuse
134
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-
4 To test Fuse 2, place and touch the tip of the test probe
on the right half of input terminal
probe tip touches the metal inside the input terminal.
5 Observe the reading on the instrument's display. Refer to
Table 5- 3
6 Replace the fuse when OL is displayed.
Fuse rating
1 440 mA/1000 V
2 11 A/1000 V
8.
for the possible readings that could appear.
Fuse OK (approximately)
6.2 MΩ
0.06 Ω
. Ensure that the probe tip
. Ensure that the
Replace fuse
Displayed readings
OL
OL
U1253B User's and Service Guide