9/29/09 Introduction 1-3
• Appendix B - Serial Port Remote Control Interface:
Explains how to use the Serial Port Interface for Remote
Control of the System 824.
• Appendix C - Technical Specifications: Gives a listing
of acoustic, electronic, environmental, and physical
characteristics of the System 824
• Appendix D - Glossary: Contains Technical Definitions
of key acoustical and vibration terms.
• Appendix E - Memory Usage: Provides details on the
allocation of memory when data are stored. This
information is particularly important for applications
such as noise monitoring where measurements are
performed and stored automatically over a period of days
or weeks.
• Appendix F - SLM Testing to IEC61672-1: Presents
information for testing the sound level meter function of
the System 824 according to IEC61672-1.
• Appendix G - Miscellaneous Information: Contains
additional information about the 824 in the form of
questions and answers
Special Features of the Electronic Version
There are a variety of special techniques for navigating
through pdf documents which can greatly simplify finding
specific items in this manual. Two of these, bookmarks and
links, are discussed below.
Bookmarks
Opening Bookmarks
Bookmarks are clickable navigation tools in pdf files. To
open bookmark, left click the upper Tab on the left of the