Tektronix Keithley 2281 Series Reference Manual page 500

Appendix B: Verification
To check DC voltage readback accuracy without remote sense:
1. Set the voltmeter as follows:

Set to measure DC voltage.

Set the current range to autorange.

Verify that the Math mx + b function is disabled (shift DCV), assuring that volts are being read.
2. Set the DUT to the full-scale output current.
3. Set the DUT to 0% of the full-scale output voltage (0 V).
4. Turn the DUT output on.
5. Enter the voltmeter reading in the DC voltage readback accuracy without remote sense table.
6. Enter the DUT readback voltage in the DC voltage readback accuracy without remote sense
table.
7. Calculate the difference of the two measurements taken in step 5 and step 6 and enter the
absolute value in the difference column of the DC voltage readback accuracy without remote
sense table.
8. Increase the DUT output voltage by 25% of the full-scale output voltage.
9. Repeat steps 3 through 8, increasing the output voltage until you complete testing at 100% of
full-scale output voltage.
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Model 2281S-20-6 DC Power Supply and Battery Simulator Reference Manual
077114601 / March 2019