User Maintenance; Overview; The Necessity Of User Maintenance - Keysight 16196A Operation And Service Manual

Keysight 16196A/B/C/D Parallel Electrode SMD Test Fixture
Operation and Service Manual
4

User Maintenance

Overview

The Necessity of User Maintenance

The measurement performance of the fixture decreases slightly each time
measurement is repeated. This is due to contamination of the contacting
sections by solder, etc. and mechanical wear and distortion caused by
repeated use. Consequently, to maintain satisfactory measurement results, it is
important to maintain the contacting sections in good condition and take
appropriate measures before wear or distortion occurs. To accomplish this it is
necessary to monitor the fixture and perform maintenance of the various items
as described in
Because deterioration of the fixture seriously affects the measurement results
when measuring minute values or performing measurements with a high
accuracy, proper maintenance of the fixture is particularly important in these
cases. Depending on the required measurement performance, it may be
necessary to take measures such as establishing more rigorous evaluation
standards and perform maintenance more frequently.
The upper and lower electrodes and the short plate are consumable products.
These are the fixture construction parts that tend to have the greatest effect on
the measurement results. During measurement, solder from the DUT tends to
adhere to the upper and lower electrodes, causing gradual deterioration of the
electrodes. The short plate part is used for creating a zero-standard during
fixture compensation and distortion or contamination of the short plate
therefore directly affects the measurement result. Focusing on the upper and
lower electrodes and the short plate, this chapter explains the general aspects
of user maintenance.
"User Maintenance Flow" on page
31
32.