Keithley 2430 User Manual

2-12 Calibration
10. Press ENTER. The Model 2430 will source 0mA and at the same time display the fol-
lowing:
DMM RDG: +00.00000μA
Use
ß
,
©
,
¹
,
ƒ
, ENTER or EXIT.
11. Note and record the DMM reading, and then adjust the Model 2430 display to agree with
the actual DMM reading. Note that the display value adjustment limits are within ±1%
of the present range.
12. After adjusting the display value to agree with the DMM reading, press ENTER. The
unit will then display the following:
I-CAL
Press ENTER to Output -10.000μA
13. Press ENTER. The Model 2430 will source -10μA and display the following:
DMM RDG: -10.00000μA
Use
ß
,
©
,
¹
,
ƒ
, ENTER or EXIT.
14. Note and record the DMM reading, and then adjust the Model 2430 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:
I-CAL
Press ENTER to Output +00.000μA
16. Press ENTER The Model 2430 will source 0μA and simultaneously display the follow-
ing:
DMM RDG: +00.00000μA
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 the normal display, and then select the 100μA source range using
the EDIT and up RANGE keys. Repeat steps 2 through 18 for the 100μA range.
20. After calibrating the 100μA range, repeat the entire procedure for the 1mA through 1A
ranges using Table 2-4 as a guide. Be sure to select the appropriate source range with the
EDIT and up RANGE keys before calibrating each range.
21. After calibrating the 1A range, connect the 1Ω characterized resistor and DMM to the
Model 2430 INPUT/OUTPUT jacks, as shown in Figure 2-3.
22. Select the DMM DC volts function.
23. Repeat steps 2 through 18 for the 3A range using Table 2-4 as a guide. When entering
the DMM reading, use the calculated current as follows: I = V/R, where V is the DMM
voltage reading, and R is the characterized value of the 1Ω resistor.

Keithley 2430 Specifications

General

Brand	Keithley
Model	2430
Category	Measuring Instruments
Language	English