1-10 Getting Started Models 2510 and 2510-AT User’s Manual
Fuse replacement
A rear panel fuse protects the power line input of the Model 2510. If the line fuse needs to
be replaced, perform the following steps:
WARNING
Disconnect the line cord and all test leads and cables from the instru-
ment before replacing the line fuse.
CAUTION For continued protection against fire or instrument damage, replace
the fuse only with the type and rating listed. If the instrument repeat-
edly blows fuses, locate and correct the cause of the problem before
replacing the fuse.
1. The fuse is located in a drawer adjacent to the AC receptacle (Figure 1-2). At the
bottom of the fuse drawer is a small tab. At this location, use a small bladed screw-
driver to pry the fuse drawer open.
2. Slide the fuse drawer out to gain access to the fuse. Note that the fuse drawer does
not pull all the way out of the input module.
3. Snap the fuse out of the drawer and replace it with the same type: 250V, 2.5A slow
blow, 5 × 20mm, Keithley part number FU-106-2.5.
4. Push the fuse drawer back into the input module.
Display
Display format
The Model 2510 display is used primarily to program setpoint values and display mea-
sured readings. Annunciators, which are located along the top of the reading/message dis-
play, indicate various states of operation, as covered previously in “Front panel summary,”
page 1-5.
On power-up, the top (primary) display shows the function being controlled by the PID
loop when the output is on (with the output off, “OFF” is displayed). The bottom display is
used for setpoint values (on the left), and alternate reading information for the selected
function (on the right) that can be selected with the DISPLAY TOGGLE/LOCAL key.
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