Performance Verification Tests; Voltage Accuracy Measurements Test - HP E1328A Service Manual

Performance
Verification
Tests
NOTE
Voltage Accuracy
Measurements Test
Equipment setup
Chapter 4
Performance verification tests objectives are to instill a high degree of
confidence that the HP E1328A 4-Channel D/A Converter (DAC) is
meeting the specifications listed in Appendix A - Specifications of the HP
E1328A User's Manual. Performance verification tests are required
whenever a calibration is required. The HP E1328A DAC performance
verification tests are:
Voltage Accuracy Measurements
Current Accuracy Measurements
For best results you should ACAL the HP 3458A multimeter not more than
24 hours prior to the tests. If a DAC channel does not pass the performance
tests, you may want to do the Voltage Adjustment and/or Current
Adjustment (see Chapter 5 - Adjustments) and then rerun the performance
verification tests.
This test checks voltage output accuracy on Channels 1, 2, 3, and 4 of the
DAC. The voltage output levels checked are: -10V, -8V, -5V, -2V, 0V,
+2V, +5V, +8V, and +10V.
Connect the equipment as shown in Figure 4-3. Be sure the three jumpers in
each DAC channel are set to the V (voltage) position. Then, set the HP
3458A to DCV function and set NPLC 100.
Figure 4-3. Voltage Accuracy Measurements Connections
Verification Tests 29