Keysight U1253B Guía Del Usuario Y Servicios página 158

Maintenance 5
Fuse checking procedure
It is recommended that you check the fuses of the multimeter before using it.
Follow the instructions below to test the fuses inside the multimeter. Refer to
Figure 5-9 for the respective positions of Fuse 1 and Fuse 2.
1 Set the rotary switch to .
2 Connect the red test lead to the input terminal .
Figure 5-8 Fuse checking procedures
Keysight U1253B User's and Service Guide 157