User Manuals: Larson Davis 820 Sound Level Meter

Manuals and User Guides for Larson Davis 820 Sound Level Meter. We have 2 Larson Davis 820 Sound Level Meter manuals available for free PDF download: Technical Reference Manual, Quick User Manual

Larson Davis 820 Technical Reference Manual (193 pages)

Sound Level Meter

Brand: Larson Davis | Category: Measuring Instruments | Size: 2 MB

Customer Service
3
Table of Contents
5
Chapter 1 Introduction

10
- About this Manual
  10
- About this Chapter
  12
- Formatting Conventions
  12
- Features
  14
- Model 820 Components
  16
  - Block Diagram
    19
- Getting Started
  20
- Overview to Model 820
  28
Chapter 2 Overview to Model 820

28
Chapter 3 Calibration

39
- Calibrating the Model 820
  39
Chapter 4 Quick Start

43
Chapter 5 Performing a Measurement/Reading the Data

51
- Taking a Measurement
  51
  - Slm
    51
  - Stopping the Measurement
    51
  - Lmax-Lmin
    55
  - Peak-Uwpk
    57
  - Leq
    59
  - Dose-LDL
    59
  - Battery
    64
  - Memory
    64
- Stopping the Measurement
  65
Chapter 6 Timed Measurement

66
Chapter 7 History Functions

72
- Setting and Viewing Advanced Functions
  72
  - Time History
    72
  - Time History Data
    74
  - Log
    75
  - Interval History
    76
  - Exceedance
    79
  - Setting Passby Functions
    83
- Overload
  85
- Setting the Daily History Parameter
  85
Chapter 8 Parameters

87
- Parameter Key Access Review
  87
- Learning to Store and Retrieve Setup Memory
  90
  - Storing a Setup
    91
  - Recalling a Setup
    92
- Model 820 Setup Parameters
  93
  - System
    93
- R U S
  
  93
  - Timer (21-27) U T
    96
  - Lock (28-34) U L
    96
  - Sound Level Meter (39-50)
    97
  - Dose (51)
    99
  - Ln Statistical Levels (55-60) B
    99
  - Exceedance Levels (61-65) V
    100
  - Exceedance History (66-70, 161-163)
    100
  - Interval History (72-79) M
    101
  - Time History (80-87)
    102
  - Print Options (89-112) S
    104
  - Additional System Functions (152, 154-161)
    105
Chapter 9 Memory Usage

108
- Determine Storable Data
  108
- Estimating Memory Usage
  110
Chapter 10 Printing a Report

113
- Normal Printout Parameters
  113
- Printing Reports
  115
- Real-Time Printing
  116
Appendix A Specifications

118
- Type
  119
- Reference Direction
  119
- Measurement Ranges
  120
  - RMS Detector
    120
  - Other Detectors
    121
- Reference Level
  121
- Frequency Weightings
  121
- Detector Time Weightings
  124
- Effects of Temperature
  124
- Effects of Humidly
  124
- Limits of Temperature and Humidity
  124
- Microphone Extension Cables
  124
- Instrument/Observer Positioning for Best Measurements
  125
- AC and DC Outputs
  125
  - AC Output
    125
  - DC Output
    125
- Reference Frequency
  125
- Stabilization Time
  126
- Microphone Electrical Impedance
  126
- Functions Measured
  126
- Data Storage
  126
- Data Communications
  127
- Digital Display
  127
- Digital Display Resolution
  127
- Display Bargraph
  127
- Real-Time Clock/Calendar
  127
- Run-Time Clock
  128
- Standards Met
  128
- CE Information
  128
- Power Supply
  129
- Dimensions/Weight (with Microphone, Preamplifier and Battery
  129
Appendix B Serial Port Interface Remote Control

130
- Model INT002 Interface Cable
  131
- Daisy Chain Addressing
  131
- Commands
  132
- History Oriented Commands
  133
- Mode Commands
  133
- Read" Variables
  134
- Other Read Commands
  140
- Group Read Programming
  140
- Setting Parameters
  141
  - Numeric Parameters
    141
  - Indexed Parameters
    142
  - Character String Parameters
    143
  - Template Parameters
    143
- Query Parameters
  144
  - Histogram Reports
    148
  - Tailored Report
    148
  - Miscellaneous
    149
  - Error Checking I/O
    151
- History Records
  153
  - Types of History
    153
  - Advance
    153
  - Backup
    154
  - Find
    154
- History Data Variables
  154
  - Exceedance History Variables
    154
  - Interval History Variables
    155
  - Daily History Variables - (D1-D102
    157
- Run Log Variables
  158
- Calibration History Variables
  158
- Time History Variables
  158
- Histogram Table Variables
  159
- Print Commands
  160
- Error Messages and Warnings
  161
- Modem Control Mode
  163
  - Modem Mode (154
    163
  - Dial out Mode (155
    163
  - Monitor Number
    163
  - 820 Phone Dialing Procedure
    164
  - Model 820 Answering Procedure
    164
Appendix C Glossary

166

Larson Davis 820 Quick User Manual (2 pages)

Sound Level Meter

Brand: Larson Davis | Category: Measuring Instruments | Size: 0 MB

Take a Measurement
2
Reset Stored Data
2
Calibration
2
Timer Settings (RT = Run Time) (ST = Stop Time)
2
Memory Check
2
Battery Check
2
Printing Report
2
Setup Parameter Number Key
2
Screen Symbols
2

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User Manuals: Larson Davis 820 Sound Level Meter

Larson Davis 820 Technical Reference Manual (193 pages)

Table of Contents

Chapter 1 Introduction

Chapter 2 Overview to Model 820

Chapter 3 Calibration

Chapter 4 Quick Start

Chapter 5 Performing a Measurement/Reading the Data

Chapter 6 Timed Measurement

Chapter 7 History Functions

Chapter 8 Parameters

R U S

Chapter 9 Memory Usage

Chapter 10 Printing a Report

Appendix A Specifications

Appendix B Serial Port Interface Remote Control

Appendix C Glossary

Larson Davis 820 Quick User Manual (2 pages)

Table of Contents

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