Larson Davis System 824, Reference Manual

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824 Reference Manual
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Table of Contents
Chapter 1 Introduction 1-1
About This Manual .................................................................................................1-1
About This Chapter.................................................................................................1-3
Formatting Conventions .........................................................................................1-3
Features ...................................................................................................................1-4
System 824 Components....................................................................................1-7
System Diagram ...............................................................................................1-10
Getting Started ......................................................................................................1-10
Unpacking and Inspection................................................................................1-12
Accessories and Optional Equipment ..............................................................1-12
Connecting Internal or External Power............................................................1-13
Using the NiMH Battery Pack ....................................................................1-14
Using Alkaline Batteries .............................................................................1-14
Using the AC Power Adapter......................................................................1-15
Chapter 2 Overview 2-1
System 824 Setups or Instrument Definitions ........................................................2-1
Instrument Definition (ID) Types ..........................................................................2-2
SLM&RTA (SSA) .............................................................................................2-2
SLM (ISM) ........................................................................................................2-4
Logging (LOG) ..................................................................................................2-4
Selecting a Measurement Setup ..............................................................................2-5
Performing a Measurement; SLM&RTA (SSA) example......................................2-6
Stop, Pause and Back Erase Functions ..............................................................2-7
Stopping and Starting Measurements............................................................2-7
Pausing Measurements ..................................................................................2-7
Back Erasing .................................................................................................2-8
Changing the detector of the displayed SPL value ............................................2-8
Changing the frequency weighting of the displayed SPL value ........................2-9
Changing the displayed secondary parameter....................................................2-9
Changing the frequency weighting of the displayed Lpeak value ...................2-10
Changing the amplitude range, or input Gain ..................................................2-10
Views ....................................................................................................................2-11
Selecting a VIEW.............................................................................................2-11
Data Storage and Recall........................................................................................2-13