Front Panel Tests - Keithley 2601B Reference Manual

Appendix A: Maintenance
To prevent injury, death, or instrument damage, use only the correct fuse type (see table).
Perform the following steps to replace the line fuse:
1. Power off the instrument and remove the line cord.
2. The fuse drawer (item 1 in the figure) is located below the AC receptacle. A small tab is located
on the top of the fuse drawer (item 2). Using a thin-bladed knife or a screwdriver, pry this tab
away from the AC receptacle.
3. Slide the fuse drawer out to gain access to the fuse (the fuse drawer does not pull completely out
of the power module).
4. Snap the fuse out of the drawer and replace it with the same type (the fuse is specified in the
table below).
5. Push the fuse drawer back into the module.
If the power line fuse continues to blow, a circuit malfunction exists and must be corrected. Return the
instrument to Keithley Instruments for repair.
Line fuse
Line voltage
100 - 240 V

Front panel tests

There are two front panel tests: one to test the functionality of the front panel keys and one to test the
display.
In the following procedures, once highlighted, menu items are selected by pressing the ENTER key.
Alternatively, menu items can be selected by pressing the navigation wheel
A-2
Series 2600B System SourceMeter® Instrument Reference Manual
Rating
250 V, 3.15 A, Slow Blow 5 x 20 mm
Keithley part number
FU-106-3.15
.
2600BS-901-01 Rev. B / May 2013