Functional Tests; What You Will Find In Chapters 2, 3, And 4; What Are The Functional Tests; Functional Test Versus Performance Verification - Agilent Technologies PSA Series Manual

Functional Tests

What You Will Find in Chapters 2, 3, and 4

What You Will Find in Chapters 2, 3, and 4
This chapter describes the functional tests and provides information on how to perform
them.

What Are the Functional Tests?

Functional tests are tests of various instrument parameters that give a high degree of
confidence that the analyzer is operating correctly. They are recommended as a check of
analyzer operation for incoming inspection or after a repair. Measurement uncertainty
analysis is not available for functional tests, and the analyzer is checked against limits
that are wider than the published specifications. The functional tests are designed to test
an analyzer operating within the temperature range defined by the analyzer specifications
using a minimum set of test equipment. If a test does not pass, performance tests must be
run to confirm a problem exists.

Functional Test Versus Performance Verification

Functional tests use a minimum set of test equipment to check a much smaller range of
parameters (and a limited number of data points for each parameter) than do performance
verification tests. Functional tests use limits that are wider than the published
specifications; measurement uncertainty analysis is not available for functional tests.
NOTE If a functional test does not pass, you must run performance verification tests
to confirm that a problem exists.
Performance verification tests span a wide range of instrument parameters and provide
the highest level of confidence that the instrument conforms to published specifications.
These tests can be time consuming and require extensive test equipment.

Chapters 2, 3, and 4 include the following:

• "Before Performing a Functional Test" on page 114
• "Test Equipment" on page 115
• PSA Functional Tests
- "Amplitude Accuracy at 50 MHz" on page 120
- "Displayed Average Noise Level (DANL)" on page 125
- "Frequency Readout Accuracy" on page 127
- "Frequency Response (Flatness)" on page 129
- "Amplitude Linearity" on page 133
- "Second Harmonic Distortion (SHD)" on page 136
112
(a list of the equipment required for all of the tests).
(PSA only, Chapter 3):
(what to do first).
Chapter 2