Series 2200 Programmable DC Power Supplies Reference Manual
Appendix B: Calibration
2200S-901-01 Rev. C / March 2016
B-27
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 DC V (mX+B)
•
Use the arrow key to move the cursor as far to the right as it can go until it is positioned on the ^.
•
Press the up range button once: M=10.00000
•
Move the arrow key to the 1's digit and up range once: M=20.00000
•
Press Enter. The display shows B=0
•
Press Enter. The display shows Units:
•
Use the arrow keys to modify the display to show AMP.
•
Adjust each letter individually.
1.
Set the electronic load as follows:
a. Set to Constant Voltage.
b. Set to the specified voltage for your DUT (see
(on page B-7)).
2.
Set the DUT to 0% of the full scale (FS) output current.
3.
Set the DUT to 100% of the FS output voltage.
4.
Turn the DUT output on.
5.
Enter the voltmeter reading into the table
(on page B-7).
6.
Enter the voltmeter reading into the table
(on page B-8).
7.
Enter the DUT current readout into the table
(on page B-8) under
the current readout column.
8.
Calculate the difference of the two measurements taken in steps 8 and 9. Enter the absolute
value of the calculated value into the difference column of the table.
(on page B-8).
9.
Increase the DUT output current by 25% of the FS output current.
10. Repeat steps 7 through 11 until you complete testing at 100% of the FS output current.