Keithley SourceMeter 2425, Руководство по обслуживанию

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2-12 Calibration Model 2425 Service Manual
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 com-
plete calibration of the present range.
19. Press EXIT to return to normal display, 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 100V
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.
Table 2-3
Front panel voltage calibration
Source range 1 Source voltage Multimeter voltage reading 2
0.2V +200.00mV
+000.00mV
-200.00mV
+000.00mV ___________ mV
___________ mV
___________ mV
___________ mV
2V +2.0000V
+0.0000V
-2.0000V
+0.0000V ___________ V
___________ V
___________ V
___________ V
20V +20.000V
+00.000V
-20.000V
+00.000V ___________ V
___________ V
___________ V
___________ V
100V +100.00V
+000.00V
-100.00V
+000.00V ___________ V
___________ V
___________ V
___________ V
1
Use EDIT and RANGE keys to select source range.
2
Multimeter reading used in corresponding calibration step. See procedure.