Appendix B: Calibration
Series 2200 Programmable DC Power Supplies Reference Manual
B-22
2200S-901-01 Rev. C / March 2016
Check DC voltage load regulation
This check procedure uses the same test setup as the previous procedure. (see
accuracy without remote sense and voltage readback accuracy
(on page B-18))
Ensure the warm-up criteria has been met as described in the Performance Verification Conditions.
1. Set the voltmeter as follows:
a. Set to measure DC volts.
b. Set to auto range.
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 Amps.
3. Set the DUT to 100% of the full scale (FS) output current.
4. Set the DUT to 100% of the FS output voltage.
5. Turn the DUT output on.
6. Enter the voltmeter reading into the table
(on page B-6) under the Min
column for your product.
7. Increase the electronic load to the reference load test current value.
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
0.6 A
8. Enter the voltmeter reading into the table
(on page B-6) under the
reference load column for your product.
9. Increase the electronic load to the maximum load test current value.
Instrument
Test current
2200- 20 - 5
4.9 A
2200 - 30 - 5
4.9 A
2200 - 32 - 3
2.94 A
2200 - 60 - 2
2.45 A
2200 - 72 - 1
1.17 A
10. Enter the voltmeter reading into table for checking DC Voltage Load Regulation under the Nom
column for your product. (see
(on page B-6).)
11. Calculate the three values: Ref – Min, Max – Ref, and (Max – Ref)/0.98. Enter the values into the
appropriate columns in the
(on page B-6) table.
