Calibration And Performance Verification - Agilent Technologies E8285A Manual

Introduction

Calibration and Performance Verification

Calibration and Performance Verification
The Test Set periodically requires some maintenance to verify that it
meets its published specifications.
126.
built-in calibration programs. The recommended interval for periodic
adjustments is 12 months. An external frequency counter and dc
voltmeter are required. See
Adjustments/Calibration" on page
The recommended Test Set calibration interval is 24 months. This is
NOTE
accomplished by performing the performance tests (see
"Performance Tests," on page
Calibration Center or other qualified calibration lab.
The performance tests verify that the Test Set performs as indicated in
the Specifications. These tests should be performed if the Test Set's
operation is suspect, even though it passes all internal diagnostic
checks. This identifies whether a problem actually exists in the Test
Set, or if an application problem exists outside of the Test Set.
Several assemblies, when replaced, require running specific periodic
calibration procedures to create calibration factors for that assembly. In
other cases, the calibration data will be included with the replacement
assembly on a memory card. Instructions that come with the
replacement assembly explain how to download the calibration data.
(This is not considered part of periodic calibration.)
When troubleshooting the Test Set, it is sometimes desirable to swap a
NOTE
known-good assembly (perhaps from another Test Set) for a
suspected-faulty assembly. If the swapped assembly requires
calibration data, most assemblies will operate well enough with the
original assembly's calibration data to troubleshoot and run the
diagnostics. However, do not expect the Test Set to meet its
specifications. Also, some assemblies may appear to fail because of the
incorrect calibration data.
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Periodic Adjustments (calibration) consists of running several
See "Periodic Adjustments" on page
Chapter 5, "Periodic
5.
141) or sending the Test Set to an Agilent
Chapter 6,