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Performing The Tests
General Measurement Techniques
Figure C-1 shows the setup for the tests. Be certain to use load leads of sufficient wire gauge to carry the output current (see
Table 8-1). To avoid noise pickup, use coaxial cable or shielded pairs for the test leads.
Programming the Power supply
Appendix A lists the programming voltage and current ranges. Enter the appropriate values from the front panel. The
programming procedures assume you know how to operate the power supply from the front panel (see "Chapter 5 - Front
Panel Operation").
Order of Tests
Perform the following tests for operation verification. Test 1 must be done first, followed by Tests 2 and 3 in any order.
1 Turn-on Checkout
2 Voltage Programming and Readback Accuracy
3 Current Programming and Readback Accuracy
Turn-on Checkout
Perform the Turn-on Checkout as directed in "Chapter 3 - Turn-on Checkout".
Note
The power supply must pass turn-on selftest before you can proceed with these tests.
Voltage Programming and Readback Accuracy
This test verifies that the voltage programming, GPIB readback, and front panel display functions are within specifications.
Figure C-1(1) shows the setup for the tests. Measure the dc output voltage directly at the sense connections of the output
terminals or bus bars. Connect the output as shown.
Table C-2. Voltage Programming and Readback Accuracy Tests
1
Turn off the power supply and connect a DVM across the sense
terminals (see Figure C-1(1)).
2
Turn on the power supply with no load and program the output
for 0 volts and maximum programmable current.
3
Record voltage readings at DVM and on front panel display.
(Subtract or add the specified readback limit to the actual
output values).
4
Program voltage to full scale.
5
Record voltage readings of DVM and on front panel display.
(Subtract or add the specified readback limit to the actual
output values)
106
Verification
Action
Normal Result
CV annunciator on. Output current near 0.
Readings within Low Voltage limits (see applicable
test table).
Readings within High Voltage limits (see applicable
test table).
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