Performance Veri
fi
cation
Check DC Voltage Load
Regulation
This check procedure uses the same test setup as the previous procedure. (See
Figure 5.)
For each channel sequentially.
NOTE.
Ensure the warm-up criteria has been met as described in the Performance
Veri
fi
cation Conditions.
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 Amps.
3.
Set the channel under test (CUT) to 100% of the full scale (FS) output current.
4.
Set the CUT to 100% of the FS output voltage.
5.
Turn the DUT output on.
6.
Enter the voltmeter reading into the table for checking DC Voltage Load
Regulation under the minimum load column for the CUT. (See Table 19 on
page 19.)
7.
Increase the electronic load to the reference load test current value.
Instrument
Reference load test current
Channel 1
0.75 A
Channel 2
0.75 A
Channel 3
2.5 A
8.
Enter the voltmeter reading into the table for checking DC Voltage Load
Regulation under the reference load column for the CUT. (See Table 19 on
page 19.)
Series 2200 Multichannel Programmable DC Power Supplies Technical Reference
37
