User Manual

Series 2200 Programmable DC Power Supplies Reference Manual Appendix B: Calibration
2200S-901-01 Rev. A/November 2011 B-19
Check DC voltage line regulation
This check procedure uses the same test setup as the previous procedure. (see Check DC voltage
accuracy without remote sense and voltage readback accuracy (on page B-17)).
1. Change the AC Power Source output to the minimum voltage specified in the following table.
DUT voltage selector switch
AC power source voltage
110
98 V
220
196 V
Ensure the warm-up criteria has been met as described in the Performance Verification Conditions.
2. 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.
3. Set the electronic load as follows:
a. Set to Constant Current.
b. Set to draw the specified test current.
Instrument
Test current
2200 - 20 - 5
2.5 A
2200 - 30 - 5
2.5 A
2200 - 32 - 3
1.5 A
2200 - 60 - 2
1.25 A
2200 - 72 - 1
0.63 A
4. Set the DUT to 100% of the full scale (FS) output current.
5. Set the DUT to 100% of the FS output voltage.
6. Turn the DUT output on.
7. Enter the voltmeter reading into the table DC voltage line regulation (on page B-6) 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 power source voltage
110
132 V
220
264 V
9. Enter the voltmeter reading into the table DC voltage line regulation (on page B-6) under the Max
column for your product.