Model 2750 Multimeter/Switch System Service Manual Routine Maintenance 3-3
Routine Maintenance
Figure 3-1
Power module
CAUTION Operating the Model 2750 on the wrong line voltage may result in instru-
ment damage.
3. If configuring the instrument for a different line voltage, remove the line voltage
selector from the assembly, and rotate it to the proper position. When the selector is
installed into the fuse holder assembly, the correct line voltage appears inverted in
the window.
4. Install the fuse holder assembly into the power module by pushing it in until it
locks in place.
Tab le 3- 1
Power line fuse
Line Voltage Rating Keithley Part No.
100/120V
200/240V
0.630A, 250V, 5 20 mm, slow-blow
0.315A, 250V, 5 20 mm, slow-blow
FU-106-.630
FU-106-.315
Model 2750
IEEE-488
MADE IN
U.S.A .
!
CAT I
DIGITAL I/O TRIG. LINK
!
SLT
2
SLT
1
SLT
3
SLT
4
SLT
5
RS-232
Fuse
Spring
Window
Line Voltage
Selector
Fuse Holder Assembly
120
240
220
100