Model 2231A-30-3 Triple-Channel DC Power Supply Performance Verification
Section 3: Performance Verification
077102700/ July 2014
3-21
DUT voltage selector
switch
AC power source voltage
110
99V
220
198V
Ensure the warm-up criteria have been met, as described in the Performance Verification Conditions
topic.
2. Set the voltmeter as follows:
a. Set to measure DC volts.
b. Set to auto range.
c. Set to show amps (instead of volts) by multiplying the voltmeter result by 20.
- Press Shift+DCV (mX+B).
- Use the arrow key to move the cursor to the far right until it is positioned on the ^.
- Press the up range button once so that M=10.00000.
- Press the arrow key to move the cursor to the first digit and then press the up range
button once so that M=20.00000.
- Press the Enter button and check that the display shows B=0.
- Press the Enter button and check that the display shows UNITS.
- Use the arrow keys to modify the display to show AMP.
- Adjust each letter individually.
3. Set the electronic load as follows:
a. Set to constant voltage.
b. Set to the specified voltage for your channel under test.
4. Set the channel under test to 100% of the full scale output voltage.
5. Set the channel under test to 100% of the full scale output current.
6. Turn the DUT output on.
7. Enter the voltmeter reading in the Minimum column of the table for DC voltage line regulation for
the channel under test.
8. Change the AC power source output to the voltage specified in the following table.
