Agilent Technologies E3646A, User Manual, Page: 180 / 211

Appendix Service Information
Test Considerations
180
Test Considerations
To ensure proper power supply operation, verify that you have selected the correct
power-line voltage prior to attempting any test procedure in this chapter. See page 23
for line voltage conversion.
Ensure that all connections of terminals (both front panel and rear panel) are removed
while the power supply internal self-test is being performed.
For optimum performance verification, all test procedures should comply with the
following recommendations:
• Assure that the calibration ambient temperature is stable and between 20°C and
30°C.
• Assure ambient relative humidity is less than 80%.
• Allow a 1-hour warm-up period before verification or calibration.
• Use short cables to connect test set-ups.
C a u t i o n The tests should be performed by qualified personnel. During performance
verification tests, hazardous voltages may be present at the outputs of the power
supply.
Operation Verification and Performance Tests
Operation Verification Tests
To assure that the power supply is operating properly, without testing all specified
parameters, perform the following test procedures:
• Perform the
power-on self-test and check out procedures on page 20.
(See “Self-Test” on page 61 for more information)
• Perform the Voltage Programming and Readback Accuracy test, and the Current
Programming and Readback Accuracy tests in this document.
Performance Tests
The following sections provide test procedures for verifying the supply’s compliance
with the specifications listed in Table 8-1, “Performance Specifications,” on
page 163. All of the performance test specifications and calculated measurement
uncertainties are entered in the appropriate Performance Test Record Card for your
specific model. You can record the actual measured values in the column provided in
this card.
If you use equipment other than that recommended in Table A-1, you must recalculate
the measurement uncertainties for the actual equipment used.