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Larson Davis 820 Manuals
Manuals and User Guides for Larson Davis 820. We have
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Larson Davis 820 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: 2.52 MB
Table of Contents
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
Unpacking and Inspection
21
Accessories
21
Optional Equipment
22
Battery Installation
26
Environmental Considerations
27
Preparing to Use the Model 820 - Connecting the MIC/Preamp
27
Overview to Model 820
28
Chapter 2 Overview to Model 820
28
Understanding the Model 820 Keypad
28
Getting to Know Screen Symbols
35
Understanding the Model 820 Screen
36
Turning on the Model 820
36
Checking the Battery Voltage
37
Turning off the Model 820
38
Chapter 3 Calibration
39
Calibrating the Model 820
39
Chapter 4 Quick Start
43
Setting Parameters Using Function Keys
43
Setting Parameters Using Numbers and Other Characters
45
Setting Time, Date, and Day Parameters
49
AC/DC Output
50
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
Using the Timer for Unattended Readings
66
Using the Time Key Functions
69
Setting the Password Lock to Protect Settings
70
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
Entering and Exiting the Setup Menu
87
Locating Parameters
88
Changing Parameters - Enter, Modify
89
Error Messages
90
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
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Larson Davis 820 Quick User Manual (2 pages)
Sound Level Meter
Brand:
Larson Davis
| Category:
Measuring Instruments
| Size: 0.2 MB
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