Keithley 2280 Series Reference Manual page 342

Series 2280 Precision Measurement DC Power Supplies Reference Manual
Ensure the warm-up criteria have been met, as described in the
(on page B-9).
3. Set the voltmeter as follows:
a. Set to measure DC volts.
b. Set the current range to auto range.
c. Verify that the Math mx+b function is disabled (shift DCV), assuring that volts are being read.
4. Set the electronic load as follows:
a. Set to constant current (CC) mode.
b. Set to draw the specified test current.
Model
2280S-32-6
2280S-60-3
5. Set the device under test (DUT) to 100 percent of the full scale output current.
6. Set the DUT to 100 percent of the full scale output voltage.
7. Turn the DUT output on.
8. Enter the voltmeter reading in the
column for your product.
9. Change the AC power source output to the maximum voltage specified in the following table.
DUT voltage selector switch
100
120
220
240
10. Enter the voltmeter reading in the
column for your product.
11. Change the AC power source output to match the Voltage Selector switch setting of the DUT, as
shown in the following table.
DUT voltage selector switch
100
120
220
240
12. Enter the voltmeter reading in the
column for your product.
13. Calculate the two values: Nom – Min and Max – Nom. Enter the values in the appropriate
columns in the
14. Enter the largest of the two values calculated in step 12 in the Largest column in the
line regulation
077085501 / February 2015
Test current
3 A
1.6 A
DC voltage line regulation
AC source voltage
110 V
132 V
242 V
264 V
DC voltage line regulation
AC source voltage
100 V
120 V
220 V
240 V
DC voltage line regulation
DC voltage line regulation
(on page B-4) table.
Performance verification conditions
(on page B-4) table under the Min
(on page B-4) table under the Max
(on page B-4) table under the Nom
(on page B-4) table.
Appendix B: Verification
DC voltage
B-17