Keithley 3730

Section
8: Maintenance Series 3700 System Switch/Multimeter
User's Manual
8
-2 Document Number: 3700S-900-
01 Rev. A / August 2007
Figure 8-1: Fuse location
Fuse Location
Rating
Keithley Instruments part
number
(1) Analog
backplane fuse
250V, 3A fast blow 5x20mm
FU
-99-1
(2) Instrument
fuse
250V / 1.25A slow blow
5x20mm
FU-106-1.25
To replace a fuse:
1. Using a flathead screwdriver, disengage the fuse holder by rotating it counter-clockwise.
2. Pull out the fuse holder and replace the fuse with the correct type (see table).
3. Reinstall the fuse holder.
If the fuse continues to blow, a circuit malfunction exists and must be corrected. Return the unit
to Keithley Instruments for repair.