3 Calibration Procedures
52 Keysight E3631A Service Guide
Test considerations
To ensure proper instrument operation, verify that you have selected the correct
power-line voltage prior to attempting any test procedure in this chapter. See
page 33 in chapter 2 for more information.
– Ensure the calibration ambient temperature is stable and between 20°C
and 30°C.
– Ensure ambient relative humidity is less than 80%.
– Allow a 1-hour warm-up period before verification or calibration.
– Keep cables and test leads as short as possible, consistent with the
impedance requirements.
– Use shielded cables to connect the monitoring device such as oscilloscope
or RMS voltmeter to the power supply.
– Ensure all the devices are firmly connected.The alligator or crocodile clip is
not recommended for use in device connection.
Performance verification tests
The performance verification tests use the power supply's specifications listed in
Chapter 1, Specifications.
You can perform two different levels of performance verification tests:
– Self-Test A series of internal verification tests that provide high confidence
that the power supply is operational.
– Performance Verification Tests These tests can be used to verify the power
supply's specifications following repairs to specific circuits. The
performance test procedures must be performed on each output.
The tests should be performed by qualified personnel. During performance
verification tests, hazardous voltages may be present at the outputs of the
power supply.
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