Appendix B: Verification
Model 2281S-20-6 DC Power Supply and Battery Simulator Reference Manual
B-24
077114601 / March 2019
2. Set the voltmeter as follows:
a. Set to measure DC volts.
b. Set the current range to autorange.
c. Verify that the Math mx+b function is disabled (shift DCV), assuring that volts are being read.
3. Set the electronic load as follows:
a. Set to constant current (CC) mode.
b. Set to draw the specified test current.
Model
Test current
2281S
3 A
4. Set the device under test (DUT) to 100% of the full-scale output current.
5. Set the DUT to 100% of the full-scale output voltage.
6. Turn the DUT output on.
7. Enter the voltmeter reading in the DC voltage line regulation table under the Min column for your
product.
8. Change the AC power source output to the maximum voltage specified in the following table.
DUT voltage selector switch
AC source voltage
100
110 V
120
132 V
220
242 V
240
264 V
9. Enter the voltmeter reading in the DC voltage line regulation table under the Max column for your
product.
10. 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
AC source voltage
100
100 V
120
120 V
220
220 V
240
240 V
11. Enter the voltmeter reading in the DC voltage line regulation table under the Nom column for your
product.
12. Calculate the two values: Nom
– Min and Max – Nom. Enter the values in the appropriate
columns in the DC voltage line regulation table.
13. Enter the larger of the two values calculated in step 12 in the Largest column in the DC voltage
line regulation table.
