Model 2231A-30-3 Triple-Channel DC Power Supply Performance Verification
Section 3: Performance Verification
077102700/ July 2014
3-17
9. Enter the voltmeter reading in the Max column of the table for checking DC Voltage Line
Regulation for the channel under test. (See Table 18 )
10. Change the AC power source output to match the voltage selector switch setting of the DUT.
DUT voltage selector
switch
AC power source voltage
110
115V
220
230V
11. Enter the voltmeter reading the Nom column of the table for checking DC Voltage Line Regulation
for the channel under test.
12. Calculate the two values: Nom – Min and Max – Nom. Enter the values into the appropriate
columns.
13. Enter the largest of the two values calculated in step 12 into the largest column.
14. This completes the check for one channel. If needed, return to step 1 to run through the
verification procedure for the next channel.
Check DC Voltage Load Regulation
This verification procedure uses the same test setup as the previous procedure. Perform the
procedure for each channel sequentially.
Ensure the warm-up criteria have been met, as described in the Performance Verification Conditions
topic.
1. Set the voltmeter as follows:
a. Set to measure DC volts.
b. Set to auto range.
c. Verify that the math mx+b function is disabled (shift+DCV), assuring that volts are being read.
2. Set the electronic load as follows:
a. Set to constant current.
b. Set to draw 0 A.
3. Set the channel under test to 100% of the full scale output current.
4. Set the channel under test to 100% of the full scale output voltage.
5. Turn the DUT output on.