Keithley 2280 Series, Справочное руководство

Страница: 402 / 457

Appendix B: Verification Series 2280 Precision DC Power Supply Reference Manual
B-36 077085503 / March 2019
To check DC current line regulation:
1. Change the AC power source output to the minimum voltage specified in the following table.
DUT voltage selector switch AC power source voltage
100 90 V
120 108 V
220 198 V
240 216 V
Make sure the warm-up criteria have been met, as described in the Performance verification
conditions.
2. Set the voltmeter as follows:

Set to measure DC voltage.

Set the current range to autorange.

Calculate the amperes (instead of volts) by multiplying the voltmeter reading result by 1/R.
3. Set the electronic load as follows:

Set to constant voltage.

Set to the specified voltage for your device under test (DUT) (see DC current line regulation (on page B-
13)).
4. Set the device under test DUT to 0% of the full-scale output voltage.
5. Set the DUT to 100% of the full-scale output current.
6. Turn the DUT output on.
7. Enter the voltmeter reading in the DC current line regulation (on page B-13) table.
8. Change the AC power source output to the voltage specified in the following table.
DUT voltage selector switch AC power source voltage
100 110 V
120 132 V
220 242 V
240 264 V
9. Enter the voltmeter reading in the Maximum line for your product in the DC current line regulation
(on page B-13) table.
10. Change the AC power source output to the voltage specified in the following table.
DUT voltage selector switch AC power source voltage
100 100 V
120 120 V
220 220 V
240 240 V