Keithley 2200 Series

Performance Verification
Check DC Voltage Load
Regulation
This check proc
edure uses the same test setup as the previous procedure. (See
Figure 5.)
For each channel sequentially.
NOTE. Ensure the warm-up criteria has be en met as described in the Performance
Verification Conditions.
1. Set the voltmeter as follows:
a. Set to me asure DC volts.
b. Set to auto range.
c. Verify th
at the Math mx+b function is disabled (shift DCV), assuring that
volts are being read.
2. Set the e
lectronic load as follows:
a. SettoConstantCurrent.
b. Set to draw 0 Amps.
3. Set the channel under test (CUT) to 100% of the f ull s cale (FS) output current.
4. Set the CUT to 100% of the FS output voltage.
5. Turn the DUT output on.
6. Ente
r 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 tes t 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