Keithley 2280 Series Reference Manual

Appendix B: Verification Series 2280 Precision DC Power Supply Reference Manual
B-34 077085503 / March 2019
3. Set the device under test (DUT) to 100% of the full-scale output voltage.
4. Set the DUT to 0% of the test current. See the following table.
Model
Range
0% test current
(A)
10% test
current (A)
50% test
current (A)
100% test
current (A)
2280S-32-6
100 mA
0
0.01
0.05
0.1
10 mA
0
0.001
0.005
0.01
2280S-60-3
100 mA
0
0.01
0.05
0.1
10 mA
0
0.001
0.005
0.01
5. Turn the DUT output on.
6. Enter the voltmeter reading/(R1 + R2) in the DC current readback accuracy (on page B-10) table.
7. Enter the DUT current readout in the DC current readback accuracy (on page B-10) table under
the current readout column.
8. Calculate the difference of the two measurements taken in steps 7 and 8. Enter the absolute
value of the calculated value in the difference column of the DC current readback accuracy (on
page B-10) table.
9. Increase the DUT output current to 10% of full-scale output current and repeat step 6 through
step 9.
10. Increase the DUT output current to 50% of full-scale output current and repeat step 6 through
step 9.
11. Increase the DUT output current to 100% of full-scale output current and repeat step 6 through
step 9.
12. Repeat step 3 through step 12 to check current readback accuracy on 10 mA range.

Keithley 2280 Series Specifications

General

Brand	Keithley
Model	2280 Series
Category	Power Supply
Language	English