Table of Contents
Advertisement
17-10
Resistance calibration
Completing the 100V DC calibration step ends the DC voltage calibration procedure. The
Model 2790 will then prompt you to connect 1kΩ. Follow these steps for resistance cali-
bration:
1.
klqb
2.
Table 17-4
Resistance calibration summary
Calibration
1kΩ
10kΩ
100kΩ
1MΩ
* Nominal resistance. Adjust Model 2790 calibration parameter to
agree with actual value.
DC current calibration
After the 1MΩ resistance point has been calibrated, the unit will prompt you to apply
10mA. Follow these steps for DC current calibration:
1.
Set the calibrator output for resistance, and turn on external sense.
Use external sense (4-wire Ω) when calibrating all resistance ranges. Be sure
that the calibrator external sense mode is turned on.
Perform the calibration steps summarized in
•
Set the calibrator to the indicated value, and place the unit in operate. (If the
calibrator cannot output the exact resistance value, use the Model 2790 left
and right arrow keys and the range keys to adjust the Model 2790 display to
agree with the actual calibrator resistance.)
•
Press the ENTER key to calibrate each point.
•
Wait for the Model 2790 to complete each step before continuing.
Calibrator
step
resistance*
1kΩ
10kΩ
100kΩ
1MΩ
Connect the calibrator to the AMPS and INPUT LO terminals of the Model 2790
as shown in
Figure
17-3.
Model 2790 SourceMeter
Table
Allowable
range
0.9kΩ to 1.1kΩ
9kΩ to 11kΩ
90kΩ to 110kΩ
0.9MΩ to 1.1MΩ
®
Switch System Reference Manual
17-4. For each step:
Advertisement
Table of Contents
