Keithley S46 Instruction Manual page 22

Section 2: Connections
WARNING
To replace the line fuse:
1. Remove the screws that secure the top cover, and then remove the cover.
2. Locate the in-line fuse holder (see
3. Twist the fuse holder to open it, and then remove the fuse.
4. Replace the damaged fuse with one that has the fuse rating listed in
5. Replace the top cover.
WARNING
Table 2-4
Power supply fuse
Line voltage
100 V to 240 V
2-10
Disconnect the line cord from the instrument before removing the
top cover and replacing the power supply fuse.
For continued protection against fire or instrument damage, replace the
fuse only with a CERTIFIED part of the type and rating listed. If the
instrument repeatedly damages fuses, locate and correct the cause of the
problem before replacing the fuse.
Fuse rating
1.6 A slow blow, 250 V, 5 mm x
20 mm
S46/S46T/S46L Microwave Switch System Instruction Manual
Figure 2-6).
Keithley part number
FU-106-1.6
Document number: S46-901-01 Rev. F / March 2011
Table 2-4.