PCB LARSON DAVIS SoundAdvisor 831C Manuel utilisateur

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831C Sound Level Meter

Reference Manual

SoundAdvisor™ Model 831C i-1

Larson Davis

SoundAdvisor

Model 831C

Sound Level Meter

Reference Manual

SoundAdvisor™ Model 831C i-2

in whole or in part for any use without prior written consent of PCB Piezotronics, Inc.

Disclaimer

The following paragraph does not apply in any state or country where such statements are not agreeable with local law:

Even though PCB Piezotronics, Inc. has reviewed its documentation, PCB Piezotronics Inc. makes no warranty or

representation, either expressed or implied, with respect to this instrument and documentation, its quality, performance,

merchantability, or fitness for a particular purpose. This documentation is subject to change without notice, and should not

be construed as a commitment or representation by PCB Piezotronics, Inc.

This publication may contain inaccuracies or typographical errors. PCB Piezotronics, Inc. will periodically update the material

for inclusion in new editions. Changes and improvements to the information described in this manual may be made at any

time.

Safety

If the equipment is used in a manner not specified by Larson Davis, the protection provided by the equipment may be

impaired.

Recycling

PCB Piezotronics, Inc. is an environmentally friendly organization and encourages our customers to be environmentally

conscious. When this product reaches its end of life, please recycle the product through a local recycling center or return the

product to:

PCB Piezotronics, Inc.

Attn: Recycling Coordinator

1681 West 820 North

Provo, Utah, USA 84601-1341

Warranty

For warranty information, go to the Larson Davis Product Warranty page.

Contact Larson Davis

Website

www.larsondavis.com

Worldwide Corporate Headquarters

Larson Davis - a PCB Piezotronics division

3425 Walden Avenue

Depew, NY 14043-2495 USA

Toll-free (in the US): 888-258-3222

Phone: 716-926-8243

USA fax: 716-926-8215

E-mail: sales@larsondavis.com

SoundAdvisor Model 831C Reference Manual (Rev Q)v 4.7 ii-1

Table of Contents

Module 1 Model 831C Features - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1

1.1 Applications and Basic Operations

1.2 Hardware Features

1.3 Performance Features

1.4 Standard 831C Package Contents

1.5 Available Options and Accessories

Module 2 Instrument Overview - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 7

2.1 Assembling Your 831C SLM

2.2 Powering the 831C SLM

2.3 Instrument Hardware Overview

2.4 Display Elements Overview

Module 3 Getting Started - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 26

3.1 Operating the 831C by Using the Meter Display

3.2 Operating the 831C Remotely

3.3 Setting File Storage Preferences

Module 4 Using the Data Display - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 31

4.1 SoundAdvisor 831C Display for SLM Mode

4.2 Enabling or Disabling Display Tabs

4.3 831C Display for FFT Mode

Module 5 Calibrating Your SoundAdvisor 831C - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 49

5.1 Understanding Calibration Values

5.2 Choosing a Calibrator

5.3 Reviewing the Calibration Settings

5.4 Calibrating Your SoundAdvisor 831C

Module 6 Creating a Measurement Setup - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 56

6.1 831C Setup Manager Overview

6.2 Creating a Custom Setup File On the Meter

6.3 Troubleshooting a Measurement Setup File

Module 7 Making a Measurement - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 67

7.1 Before You Start

7.2 Performing the Measurement

7.3 Storing the Measurement

Module 8 Managing Measurement Data Files - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 75

8.1 Setting Data File Storage Preferences

8.2 Using the File Manager

8.3 Saving, Moving, or Copying Data Files

Module 9 Setting System Properties - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 82

9.1 Setting Instrument Identification

9.2 Updating the Meter Time

9.3 Using NTP to Sync the Meter Clock

9.4 Editing Power Settings

9.5 Setting Meter Preferences

9.6 Setting Localization Options

9.7 Setting Active/Hidden Pages On the Displays Tab

9.8 Enabling or Disabling Options

9.9 Setting Network Preferences

9.10 Configuring an Email Server On the Meter

9.11 Enabling or Disabling Remote (Cloud) Storage

SoundAdvisor Model 831C Reference Manual (Rev Q)ii-2

9.12 Utilizing the Logic In or Logic Out Feature

9.13 Choosing Preamp Heater Options

9.14 Setting Reference Spectra

9.15 Generating an App Password

Module 10 System Information - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 101

Module 11 Managing 831C Security - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 102

11.1 Using the Meter Lock

11.2 Using Network Security

Module 12 Using System Utilities - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 106

12.1 Troubleshooting a Bad Flash Block Error

Module 13 831C Network and Connections - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 107

13.1 Configuring 831C Network Connections

13.2 Setting the Meterʼs Network ID

13.3 Using WiFi On Your 831C

13.4 Disconnecting a Cloud Storage Dropbox Account

Module 14 Software, Firmware, and Options - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 112

14.1 Updating the G4 LD Utility Software

14.2 Upgrading 831C Firmware by Using G4 LD Utility

14.3 Upgrading Meter Firmware Options

14.4 Enabling or Disabling Firmware Options

Module 15 Using Measurement History - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 116

15.1 Setting Up a Measurement With Measurement History

15.2 Viewing Measurement History Data Files

Module 16 Using Time History - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 123

16.1 Setting Up a Measurement With Time History

16.2 Making a Time History Measurement With Sound Markers

16.3 Viewing Time History Data

Module 17 Using the Event History Firmware Option - - - - - - - - - - - - - - - - - - - - - - - - - 128

17.1 Setting Up the Event History Measurement

17.2 Storing Event Data

17.3 Viewing Event History Data on the Events Tab

17.4 Setting Advanced Event Triggers

17.5 Understanding Level and Dynamic Triggering

Module 18 FFT & Tonality Measurement - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 139

18.1 Preparing the Equipment

18.2 Creating an FFT Setup File On the Meter

18.3 Making the FFT Measurement

18.4 Viewing FFT Data Files On the Meter

Module 19 Utilizing 831C Sound Recording - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 157

19.1 Understanding 831C Recording Settings and Sound Quality

19.2 Using Mark Sound Type to Make Manual Sound Recordings

19.3 Making an Automated Event Sound Recording

19.4 Enabling Measurement History Sound Recording

19.5 Listening to Sound Recordings

Appendix A Technical Specifications - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -A-1

A.1 Instrument Platform Specifications

A.2 Model PRM831

A.3 Base Software

A.4 Octave Band Analysis Software – Option 831C-OB3

A.5 Event Logging Software (Option 831C-ELA)

SoundAdvisor Model 831C Reference Manual (Rev Q)ii-3

A.6 Time History Software (Option 831C-LOG)

A.7 FFT Analysis Software Specifications (Option 831C-FFT)

A.8 PTB Approved Firmware

A.9 Frequency Response

Appendix B Measuring Sound Using IEC 61672-1 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - B-1

B.1 Overview

B.2 IEC 61672-1 Section 9.3

Appendix C Glossary - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - C-1

SoundAdvisor™ Model 831C Applications and Basic Operations 1

Module 1 Model 831C Features

The SoundAdvisor™ Model 831C SLM is a Class 1 acoustic monitoring instrument with a

full-color touchscreen that measures noise frequency, sound pressure level, and

community and environmental sound. The “C” in 831C refers to the full-color screen.

G4 LD Utility software (G4) connects your meter to your PC via USB, WiFi, or TCP/IP. With

G4 you can calibrate the meter, create setup files, download measurements, and analyze

the results.

In this module:

1.1 Applications and Basic Operations - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -1

1.2 Hardware Features - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2

1.3 Performance Features - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -2

1.4 Standard 831C Package Contents - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -3

1.5 Available Options and Accessories - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -4

1.1 Applications and Basic Operations

The 831C monitors:

• City noise

• Construction noise

• Airport noise

• Nuisance noise

• Noise ordinance compliance

• Wind farm noise

The 831C performs the following operations:

TRY THIS Explore the

interface, press

buttons, change

settings, and test the

operations.

• Measure sound using run, stop, pause, and resume measurement

• Display broadband and spectral sound values on a full-color display screen

• View live and stored data while a measurement is in process

• Log simultaneously to time, statistical measurement, and event histories

• Use markers to annotate portions of time histories, including voice annotation

• Automatically back up data to prevent data loss on power failure

• Calibrate using a Precision Acoustic Calibrator, and store calibration history

• Time-stamping for Lmax, Lmin, Lpeak-(max) single event metrics.

• Sync clock with PC, attached GPS, or Network Time Protocol (NTP)

• Create multiple Setup configurations using the Setup Manager

• Stream and record audio continuously or for events using sample rates up to 51.2

ksps in compressed or uncompressed format

SoundAdvisor™ Model 831C Hardware Features 2

• Communicate via USB, Ethernet, WiFi, or cellular (with cellular gateway)

• Operate completely from the device itself, or remotely using G4 LD Utility software

• Easily expand memory using USB memory

• Select desired color theme on the full-color graphic LCD display with touchscreen

user interface

1.2 Hardware Features

The 831C is a precision-integrating sound level meter with the following hardware

features:

TAKE NOTE Up to

32GB USB memory

can be purchased

from Larson Davis as

an option.

• 2 GB internal industrial grade data memory

• 240 x 320 full-color graphic LCD display with touchscreen user interface

• Quiet Touch elastomeric keypad

• Meter uses NiMH, photo-lithium, lithium-Ion, and alkaline cells; 4-AA batteries

provide upwards of 8 hours operating time

• AC/DC output jack with full dynamic range option

• Compatible with 61 m (200 ft.) microphone extension cable (full scale to 20 kHz)

• Dust-resistant, durable plastic case with lanyard (tripod mount is also available)

• USB 2.0 high-speed host connector for mass storage, weather sensors, USB

headset, and WiFi communication devices

• USB 2.0 high-speed peripheral connector for control and data download by a PC

• I/O connector for power, weather transducers, logic input/output, and

preamplifier communications

1.3 Performance Features

• Large dynamic range, > 120 dBA

• RMS Detectors: Slow, Fast, Impulse

• RMS Frequency Weighting: A, C, Z

• Peak Frequency Weighting: A, C, Z

• Any LevelTM Simultaneous measurement and display of Max and Min sound

pressure levels (Slow, Fast, and Impulse detectors), plus Leq and Peak levels, all

with A, C and Z frequency weighting

• Weather Measurements (Wind Speed and Direction, Temperature, and Humidity

with SEN03x)

• SLM and FFT modes

• Multiple language support: English, French, Italian, German, Spanish, and Chinese

• Field-upgradeable firmware

SoundAdvisor™ Model 831C Standard 831C Package Contents 3

1.4 Standard 831C Package Contents

The 831C is shipped in protective packaging. First, verify the shipment contains all parts

and accessories for the configuration you selected. Report any damage or shortage

immediately to Larson Davis/PCB Piezotronics, Inc. See the back cover of this manual for

contact information. We also recommend that you retain the packaging for safe shipment

for calibration service.

The 831C is available as part of a specialized system or in a standard configuration. The

following accessories are contents of the standard configuration:

FIGURE 1-1 Contents, SoundAdvisor 831C Standard Package

Item Descriptions

1. SoundAdvisor 831C Acoustic Meter

2. Microphone (377B02) ½-inch free-field prepolarized microphone, 50

mV/Pa, providing performance conforming to Class 1 sound level meter

standards Note: You can use other

microphones with the 831C. For

more information, see 1.5.2

Hardware Options.

3. Microphone (377C20) ½-inch random incidence prepolarized

microphone, 50 mV/Pa, providing performance conforming to Class 1

sound level meter standards

4. Microphone Preamplifier (PRM831) CAUTION: Sensitive to static

electricity

5. Microphone Preamplifier (PRM2103)

6. Accessory Kit (831-ACC) includes these items:

Hard Shell Case (831-CCS)

Universal AC USB Power Adapter (PSA029)

USB to mini-B cable, 1.8 m (CBL138)

3 ½-inch windscreen (WS001)

Four (4) Rechargeable AA NiMH batteries

7. USB Drive

Not formatted for data storage

Includes: G4 LD Utility software, SoundAdvisor 831C Reference Manual,

Digital Calibration Certificates

8. Lanyard Attaches to USB drive for easy retrieval

1. 2. 3. 4.

7, 8.

SoundAdvisor™ Model 831C Available Options and Accessories 4

1.4.1 About Serial Numbers

The 831C serial number is printed on the back panel label. The microphone model and

serial numbers are engraved on the outside of the microphone. The preamplifier model

and serial numbers are engraved on the outside surface of the preamplifier.

We recommend that you record the purchase date, model and serial numbers for your

instrument, preamplifier, and microphone.

1.5 Available Options and Accessories

In this section:

•1.5.1 Firmware Options

•1.5.2 Hardware Options

1.5.1 Firmware Options

The following upgrades/options are available to purchase from Larson Davis.com or via

your LD representative.

Optional Firmware Packages

Octave Band Analysis

(831C-OB3)

Simultaneous, real-time 1/1 & 1/3 Octave Frequency Analysis for the

range of 6.3 Hz to 20 kHz. Compliant with IEC 61260:2014 Class 1 and ANSI

S1.11-2014 Class 1 standards.

Time History

(831C-LOG)

Creates a record of changes in sound pressure level over time as a Time

History, with periods from 2.5 ms to 24 hours.

Event History and

Measurement History with

Exceedance logging (831C-ELA)

Measurement History for the manual or timed storage of statistical data,

acoustic Event History, and exceedance-based logging analysis.

Sound Recording

(831C-SR)

Save event-based or manual sound recordings in the measurement data

file. in compressed or uncompressed (WAV or OGG) format that can be

shared via email or SMS

Measurement History, Sound

Recording

(831C-MSR)

Measurement History for the manual or timed storage of statistical data

with all sound recording capabilities.

Sierra Wireless Cellular

Communication

(831C-SW)

Make direct USB communication with Sierra Wireless RV50X cellular

gateway.

AudCal Software

(831C-AUD)

Using the AudCal software from Larson Davis in conjunction with your

SoundAdvisor 831C enables you to test the calibration of audiometers

and sound booths.

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