Keithley SourceMeter 2400, Service Manual, Page: 38 / 137

Model 2400 Service Manual 2-10
Calibration
2400-902-01 (G - Feb 2006)
13. Press ENTER. The Model 2400 will source -200mV and display the following:
DMM RDG: -200.0000mV
Use
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,
©
,
¹
,
ƒ
, ENTER, or EXIT.
14. Note and record the DMM reading, and then adjust the Model 2400 display to agree
with the DMM reading. Again, the maximum display adjustment is within ±10% of the
present range.
15. After adjusting the display value to agree with the DMM reading, press ENTER, and
note that the instrument displays:
V-CAL
Press ENTER to Output -000.00mv
16. Press ENTER. The Model 2400 will source -0mV and simultaneously display the
following:
DMM RDG: +000.0000mV
Use
ß
,
©
,
¹
,
ƒ
, ENTER, or EXIT.
17. Note and record the DMM reading, and then adjust the display to agree with the DMM
reading. Once again, the maximum adjustment is within ±1% of the present range.
18. After adjusting the display to agree with the DMM reading, press ENTER to complete
calibration of the present range.
19. Press EXIT to return to normal display, and then select the 2V source range. Repeat
steps 2 through 18 for the 2V range.
20. After calibrating the 2V range, repeat the entire procedure for the 20V and 200V ranges
using Table 2-3 as a guide. Be sure to select the appropriate source range with the EDIT
and RANGE keys before calibrating each range.
21. Press EXIT as necessary to return to normal display.