Keithley 2400 Service Manual

2400-902-01 (G - Feb 2006)
Model 2400 Service Manual 3-2
Routine Maintenance
Introduction
The information in this section deals with routine type maintenance that can be performed by
the operator.
Line fuse replacement
WARNING Disconnect the line cord at the rear panel, and remove all test leads con-
nected to the instrument (front and rear) before replacing the line fuse.
The power line fuse is accessible from the rear panel, just above the AC power receptacle (see
Figure 3-1).
Perform the following steps to replace the line fuse:
1. Carefully grasp and squeeze together the locking tabs that secure the fuse carrier to the
fuse holder.
2. Pull out the fuse carrier, and replace the fuse with the type specified in Table 3-1.
CAUTION To prevent instrument damage, use only the fuse type specified in
Table 3-1.
3. Reinstall the fuse carrier.
NOTE If the power line fuse continues to blow, a circuit malfunction exists and must be
corrected. Refer to the troubleshooting section of this manual for additional
information.
Table 3-1
Power line fuse
Line voltage Rating Keithley part no.
100-240V 250V, 2.5A, slow blow 5 × 20mm FU-106-2.5

Keithley 2400 Specifications

General

Brand	Keithley
Model	2400
Category	Measuring Instruments
Language	English