Instruction manual

Preface
xiv Assembly-Level Service Guide
Instruments Covered by this Guide
This guide applies directly to Agilent 53131A, Agilent 53132A, and Agilent 53181A
Counters that have the same serial number prefix(es) shown on the title page. If the
serial number prefix of your Counter differs from that listed on the title page of this
guide, then there may be differences between this guide and your instrument.
Instruments having a higher serial prefix are covered when required by one or more
manual-change sheets included with this guide. If a required change sheet is missing,
contact your nearest Agilent Technologies Sales Office listed at the back of this guide.
Instruments having a serial prefix lower than that listed on the title page are covered
in Chapter 6, “Backdating.”
Assembly-Level Service Guide Organization
This assembly-level service guide consists of a table of contents, preface, eight
chapters and an index. The page running headers identify the chapters and sections of
this manual. The chapter contents are summarized as follows:
Chapter 1, “Performance Tests,” provides procedures that verify the Counter operates
properly and meets the Agilent 53131A/132A or Agilent 53181A specifications given
in Chapter 7, “Agilent 53131A/132A Specifications,” or Chapter 8, “Agilent 53181A
Specifications,” in this guide.
Chapter 2, “Service,” is divided into seven main sections that provide instructions for
returning the Counter to Agilent Technologies for service, calibrating the Counter,
and troubleshooting the assemblies in the Counter.
Chapter 3, “Replacing Assemblies,” provides procedures for replacing defective
assemblies and/or modules in the Counter.
Chapter 4, “Retrofitting Options,” provides field-installation procedures that help you
install options into the Counter.
Chapter 5, “Replaceable Parts,” lists the replaceable parts contained in the Counter,
and explains how to order replacement parts for your Counter.
Chapter 6, “Backdating,” contains information required to adapt this manual for older
instruments.