G4 LD Utility Manual - larsondavis.comG4 LD Utility Reference Manual G4 LD Utility Interface Overview 3 FIGURE 1-2 G4 Calibration Histories for All LD Instruments 1.1.2 The Meters

Larson Davis

G4 LD UtilitySoftware

Reference Manual

G4 LD Utility Reference Manual i-2

CopyrightCopyright 2020 PCB Piezotronics, Inc. This manual is copyrighted, with all rights reserved. The manual may not be copied inwhole or in part for any use without prior written consent of PCB Piezotronics, Inc.

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G4 SLM Utility Reference Manual Rev M (firmware v4.5.0) ii-1

Table of ContentsManual Outline

Module 1 Introduction to G4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11.1 G4 LD Utility Interface Overview1.2 Supported File Types

Module 2 Getting Started With G4 LD Utility . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .92.1 Installing G4 2.2 Upgrading Firmware and Firmware Options2.3 Connecting the Meter to G42.4 Creating a Measurement Setup and Making a Measurement2.5 Downloading Measurement Data Files2.6 Viewing Downloaded Data in G42.7 Exporting Data to a Spreadsheet

Module 3 Working With Data Files in G4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .223.1 Packaging Settings and Properties for SLM and HVM3.2 More Data Files Features3.3 Accessing Audio Files in G4

Module 4 Upgrading Software, Firmware, and Options . . . . . . . . . . . . . . . . . . . . . . . . . . . .374.1 Updating the G4 LD Utility4.2 Upgrading Meter Firmware4.3 Upgrading Firmware Options4.4 Enabling or Disabling Firmware Options for SLM4.5 Enabling or Disabling Firmware Options for Dosimeter

Module 5 Managing Security in G4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .415.1 Using the Meter Lock5.2 Using Network Security for 831C5.3 Using 831C Security for Advanced Admin

Module 6 G4 Features for SoundAdvisor® 831C . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .506.1 Getting Started With 831C Accounts in G46.2 Configuring Data Storage Preferences for 831C6.3 Using Scheduling Firmware (831C-SCH)6.4 Using G4 Security Features for 831C

Module 7 Environmental Noise Study Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .687.1 Setting Up the Measurement7.2 Creating a Setup File in G47.3 Making the Measurement7.4 Viewing the Measurement Data7.5 Exporting the Data to a Spreadsheet

Module 8 Room Acoustics Measurement Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .878.1 Setting Up the Measurement8.2 Making the Measurement8.3 Viewing Measurement Data8.4 Exporting RT60 Data to a Spreadsheet

Module 9 FFT & Tonality Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .969.1 Setting Up the Measurement

G4 SLM Utility Reference Manual Rev M (firmware v4.5.0) ii-2

9.2 Making the Measurement9.3 Viewing Measurement Data9.4 Exporting the Data to a Spreadsheet

Module 10 Dosimeter Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10910.1 Creating a Measurement Configuration File in G410.2 Importing a Configuration Setup File10.3 Pushing a Setup File to Multiple Dosimeters10.4 Monitoring the Measurement in G410.5 Viewing Measurement Results in G410.6 Creating a Report10.7 Creating Modified Results

Module 11 Human Vibration Meter Example . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12911.1 G4 LD Utility License for HVM Functionality11.2 G4 LD Utility for HVM10011.3 G4 LD Utility for HVM20011.4 Creating a Report

Appendix A G4 Settings Reference . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-1A.1 File Menu SettingsA.2 Tools Menu SettingsA.3 Help Menu SettingsA.4 Setup Manager SettingsA.5 Configuring System Properties in the Setup ManagerA.6 Meters Panel Settings and Options

G4 LD Utility Reference Manual Manual Outline i-3

Manual Outline

Module 2 Getting Started With G4 LD Utility

Module 3 Working With Data Files in G4

Module 4 Upgrading Software, Firmware, and Options

Module 5 Managing Security in G4

Module 6 G4 Features for SoundAdvisor® 831C

Module 7 Environmental Noise Study Example

Module 8 Room Acoustics Measurement Example

Module 9 FFT & Tonality Example

Module 10 Dosimeter Example

Module 11 Human Vibration Meter Example

Appendix A G4 Settings Reference

Processes for using G4 features and functions

Processes for using G4 with a specific

instrument

Quick reference for settings and options

in G4

G4 LD Utility Reference Manual G4 LD Utility Interface Overview 1

Module 1 Introduction to G4

G4 LD Utility (G4) software enhances the features, flexibility, and ease-of-use ofLarson Davis products with the following capabilities:

• Provides dependable and intuitive interface for remote or local operationof sound and vibration measurement instruments

• Provides network security options for remote SLM instruments whenenabled

• Connects automatically to known instruments

• Provides a scheduling interface for instrument run time, alertnotifications, measurement trigger levels, and other features

• Allows you to easily create and manage instrument setups, calibrationand calibration management

• Facilitates file and instrument utility management one or multipleinstruments

• Enables you to download, chart, analyze, and manipulate measurementdata files in spreadsheets, graphs, and sound files

• Allows for data export to a Microsoft Excel®-compatible format forpostprocessing and analysis

In this module:1.1 G4 LD Utility Interface Overview ............................................................................................ 1

1.1.1 Main Menu1.1.2 The Meters Panel/ Projects Panel1.1.3 Using the Projects Panel1.1.4 Main Tab Display

1.2 Supported File Types ............................................................................................................. 8

1.1 G4 LD Utility Interface Overview

G4 Utility interface is divided into 3 sections: the Toolbar, the Meters Panel, and theMain Screen.


FIGURE 1-1 G4 Utility Interface

1.1.1 Main Menu

The main menu provides access easy access to the listed features of G4.This section provides a brief overview of which settings and featuresare available. For details or help locating a setting, see Appendix A “G4Settings Reference” on page A-1, which lists all settings and features inthe order they appear in G4.

Setup Manager Overview

Use G4 Setup Manager to store measurement setup files on the PC oron the meter. You can also use Setup Manager to perform the followingtasks:

• Copy or share stored setup files

• Edit measurement setups stored on the instrument

• Access options for setups using the right-click menu

For details on using the Setup Manager, see A.4 “Setup ManagerSettings” on page A-8.

Calibration HistoriesWhen you select Calibration Histories from the main menu, the mainwindow displays calibration information for all Larson Davisinstruments as shown in Figure 1-2.

See 1.5.3 Main Tabs display here

See 1.5.1 Main Menu

See 1.5.2 Meters Panel/ Projects


FIGURE 1-2 G4 Calibration Histories for All LD Instruments

1.1.2 The Meters Panel/ Projects Panel

The Meters Panel is always present and allows you to access multipleinstruments or projects at any time.

When you launch G4, meters using WiFi, Bluetooth, or USB connectionsmay automatically display in the Meters Panel. If you don’t see yourinstrument in the list, click Discover Meters in the top menu bar.

FIGURE 1-3 Meters PanelTRY THIS Click the arrow icon in-line with Meters to collapse the

meter/project list and disconnect from all meters. Click again to open a collapsed panel, then click Discover Meters to reconnect with available meters.

LEARN MORE For additional help connecting your instrument, see the Getting Started section of the instrument’s manual. TCP connected instruments require additional setup. See 2.3.1 "Connecting the Meter to G4 via TCP/IP" on page 11.

Select an instrument

Select the type of calibration

View the resulting data

1.

2.

3.

1. 2.

3.

Table 1.1 Icons On the Meters Panel

Meter Type SLM HVM Dosimeter

Run/Stop/Pause Status

Run Pause Stop Sleep


1.1.3 Using the Projects Panel

The Projects Panel allows you to group meters and the resulting datafiles (location, study, time of day etc.). For example, if I’m using an 831Cand a Spartan dosimeter to study noise exposure in the North Mill,when I create a North Mill Project, measurement files for this projectare stored together.

Projects are saved on your PC in the following location: Documents\PCBPiezotronics\G4\Data\Projects\YourProjectName\TheMeterName\.

Step 1. To create a new project, click the menu icon in-line with the Projectspanel, and select New Project. “New Project” appears on the line below.

Step 2. Click the menu icon in-line with this new project, and select RenameProject. Then click inside the name field to rename it.

Step 3. In the Meters Panel section above, click and drag the name of a meter tothe space below the Project name. Repeat the same action for othermeters on this project.

Connection Type

USB

USB with network security

WiFi, Ethernet WAN

WiFi, Ethernet WAN with network

Security (https)

Bluetooth LAN

LAN with G4 Security (https)

Files StatusFiles Stored on

MeterNo Files Stored on

Meter

Info Icon Click the info icon to view a summary of live meter statistics

Meter Menu

Table 1.1 (Continued)Icons On the Meters Panel

Meter Type SLM HVM Dosimeter

Rename Meter: Customize a nickname that displays in the Meters Panel.

Hide Meter: Temporarily removes this meter from the Meters Panel.

Forget Meter: Removes this meter from the Meters Panel.

Modify Connection: Select this item to connect to the meter over TCP, or to set a unique port number.


LEARN MORE For more tips on organizing measurement files, see 2.6.2 "Adding General Information to Create Search-able Data Files" on page 18.

Removing a Project

When you’re finished with a project and want to remove it from theProjects Panel, complete this section.

Step 1. First, you will delete Project files. To do this, in the Projects Panel, clickon the name of a meter in the Project you want to remove. Theconnected meter tab opens.

Step 2. In the Files view, use the search bar to locate and delete the project filesfor that meter.

Step 3. Repeat steps 1 and 2 for other meters in the project.

Step 4. Click the menu icon in-line with the project name, and select RemoveProject.

1.1.4 Main Tab Display

When you click on the name of your connected meter in the Meters (orProjects) Panel, the meter tab opens in the main tab display with thefollowing views as shown in Figure 1-4:

• Files View and Live View

• Manager View (formerly Meter Manager)

• Accounts/Schedule (optional firmware upgrade)

• Profile button

FIGURE 1-4 The Meter Tab Opens in the Main Tab Display

This section shows the features of the main tab display for theSoundAdvisor 831C. Although the functions are much the same forother instruments, your display may differ. To view specifics for yourinstrument, see the module that demonstrates your specificinstrument (see Modules 7–11).


Files View Summary

With a meter tab open in the main tab display, the Files view displaysby default. Use the this view to download, delete, export, andotherwise manage files on the meter and on your PC. Figure 1-5 showsthe 831C Files view as an example. Your display may differ.

FIGURE 1-5 Files View for SoundAdvisor 831C SLMThis view includes a helpful auto-download feature, and the ability to export data to a spreadsheet while downloading. For details on using these features and the Files view, see 2.5 "Downloading Measurement Data Files" on page 12.

Live View SummaryFIGURE 1-6 With a meter tab open in themain tab display, use the Live View tomonitor or work with the meter just asyou would if the meter was in hand. TheLive View displays differently for eachinstrument. Figure 1-6 shows theSoundAdvisor 831C as an example.

Manager View Summary

Use the Manager view to access meter specific functions, such ascalibrating your meter, or streaming audio from the microphone. click


on the name of your connected meter in the Meters Panel and choose Manager from the Main Menu.

FIGURE 1-7 Manager View for SoundAdvisor 831C1.Click the arrow tocollapse the MeterStatus panel to view theCalibrate, AudioStreaming, andMaintenance tabs.

Accounts/Schedule ViewThis view is active only for SoundAdvisor 831C users when theScheduling firmware option 831C-SCH is purchased and installed. Formore information, see Module 3 G4 Features for SoundAdvisor 831C.

FIGURE 1-8 Account Schedule View

1. The Active View is “view-only.”

2. To edit the schedule, choose Recurring Week.

3. Items can be scheduled in 15 minute increments.

1.

1. 2.

3.

G4 LD Utility Reference Manual Supported File Types 8

1.2 Supported File Types

G4 supports opening and working with the following Larson Davis filetypes:

• LDBIN, sound level meter files

• LDSYS, system properties files

• SLMDL, G4 Utility software files

• LD7, Spartan dosimeter files

• HVM1, HVM100 files

• HVM2, HVM200 and associated META files

When working with an HVM200 (.HVM2) data file, G4 creates anassociated META file, which encodes the changes and allows G4to present them with each use.

• XLSX, or other MS Excel™-compatible files

G4 LD Utility Reference Manual Installing G4 9

Module 2 Getting Started With G4 LD Utility

This module provides an overview of using G4 LD Utility to create and processmeasurement data.

In this module:

2.1 Installing G4 ........................................................................................................................... 9

2.2 Upgrading Firmware and Firmware Options ...................................................................... 10

2.3 Connecting the Meter to G4 ................................................................................................. 102.3.1 Connecting the Meter to G4 via TCP/IP2.3.2 Connecting the Meter to G4 via Bluetooth, USB, or WiFi

2.4 Creating a Measurement Setup and Making a Measurement ............................................ 12

2.5 Downloading Measurement Data Files ............................................................................... 122.5.1 Using the G4 Auto-Download Feature2.5.2 Downloading Data Files Manually

2.6 Viewing Downloaded Data in G4 ......................................................................................... 152.6.1 Using the G4 Files View2.6.2 Adding General Information to Create Search-able Data Files2.6.3 Opening a File Saved On Your PC

2.7 Exporting Data to a Spreadsheet ......................................................................................... 212.7.1 Exporting Data to a Spreadsheet When Using Auto-Download2.7.2 Exporting Data to a Spreadsheet When Using Manual Download2.7.3 Exporting Data to a Spreadsheet When the File is Open in G4

2.1 Installing G4

Before you begin:• Review G4 system requirements shown in Table 2.1.

Table 2.1 System Requirements

Minimum Recommended

Operating System Windows® 7/Windows 102 Windows 10 Pro 64-bit

Computer Processor 1.5 GHz 2 GHz

Computer Memory 4 GB 8 GB

G4 LD Utility Reference Manual Upgrading Firmware and Firmware Options 10

Step 1 To locate the most recent version of G4, navigate in a browser towww.LarsonDavis.com/G4.

Step 2 In the Software section, choose the version you need.

Step 3 The G4 installer downloads as a ZIP file to your PC.

Step 4 From the ZIP file, extract and run the EXE file. G4 creates a shortcut on theDesktop and a PCB Piezotronics folder on your Start Menu.

2.2 Upgrading Firmware and Firmware OptionsAPPLIES TO SLMs, 730 Dosimeter, HVM200 with G4 LD Utility version 4.5 or newer

To make use of G4 LD Utility features and functions, we recommendthat you update your G4, then update your instrument firmware. Thelatest version of G4 contains the latest firmware for each instrument. Ifyou need to install a firmware option, the process in G4 is similar toupdating instrument firmware. For details on these processes, seeModule 4 Upgrading Software, Firmware, and Options.

2.3 Connecting the Meter to G4In this section:

• 2.3.1 Connecting the Meter to G4 via TCP/IP

• 2.3.2 Connecting the Meter to G4 via Bluetooth, USB, or WiFi

Available Hard Disk Space 2 GB 2 GB

Screen Resolution 1024 X 768 1280 X 1024

USB Connection Yes Yes

Microsoft® Office None Excel® 2010 or later1

Broadband Internet Required for remote Internet connections.

1Recommended only if exporting data to Excel

2 Microsoft, Windows, and Excel are registered trademarks of Microsoft Corporation in the United States and in other countries.

Table 2.1 System Requirements (Continued)

G4 LD Utility Reference Manual Connecting the Meter to G4 11

2.3.1 Connecting the Meter to G4 via TCP/IP

When the SoundAdvisor 831C or Model 831 is connected to a networkand G4 is not able to automatically connect to the meter, complete thisprocess to establish a connection by using the meter’s IP address.

Before you begin:• If you’re using Model 831, connect to an 831C-INT-ET.

Step 1 In G4 in the Meters Panel, click the menu icon in-line with Meters, andselect Add Meter from the pop-up menu. This opens the Add TCPConnected Meter window

Step 2 Enter information in the following fields, then click OK.

• IP Address/Host Name: Enter the IP address of the instrumentor meter.

• Port: Most users should leave this set to Use default portunless instructed otherwise, in the following circumstances.

• To use network security on the meter with the secureport (Port 443), select the checkbox in-line with Usesecure connection (https). Port 443 is selected.

• To designate a non-standard port, deselect both check-boxes and enter the Port number. Use this option only asdirected by your IT professional.

• Password: If you’re using Model 831 and 831-INT-ET, you mayenter a password in this field. This field should not be used forthe meter password.

FIGURE 2-1 Adding a TCP/IP Connected MeterTest Connection: Enter the IP Address and press Test Connection to verify that G4 is communicating with the system.

If no connection is established, verify the information youentered, or check with your IT professional.

2.3.2 Connecting the Meter to G4 via Bluetooth, USB, or WiFi

LD instrument connected via Bluetooth and USB connect automatically.

G4 LD Utility Reference Manual Creating a Measurement Setup and Making a Measurement 12

For more information about connecting your instrument to G4 viaBluetooth, USB, or WiFi, refer to the instrument manual.

• In G4, go to Help Manuals, and select the manual for yourinstrument.

• At www.LarsonDavis.com, go to Support [select yourproduct and model] Documentation.

2.4 Creating a Measurement Setup and Making a MeasurementAPPLIES TO All instruments

Prior to making a measurement with Larson Davis instruments, use G4to easily define measurement parameters, required statistics, and thecontents of the resulting data file.

The G4 measurement configuration (setup) is customized for eachinstrument and measurement type. Modules 7–11 of this manual areexample applications for each type of measurement. Refer to themodule for your instrument for details and recommendations to makefull use of your instrument.

2.5 Downloading Measurement Data FilesAPPLIES TO All instruments

In this section, choose G4’s helpful auto-download feature formeasurement data files or choose the manual download option.

In this section:• 2.5.1 "Using the G4 Auto-Download Feature" on page 12

• 2.5.2 "Downloading Data Files Manually" on page 14

2.5.1 Using the G4 Auto-Download Feature

APPLIES TO SLM and Spartan dosimeter. For HVM products, see 2.5.2 "Downloading Data Files Manually" on page 14.

The G4 Auto-download feature allows files to download from meterswithout any user interaction. When the G4 application is running and ameter is connected and active, G4 automatically downloads files.

G4 LD Utility Reference Manual Downloading Measurement Data Files 13

TAKE NOTE If the meter tab is already open in G4, files will not auto-download.

The Auto-download feature does not run when the meter tab is open inthe main tab display, so it doesn’t interfere with concurrent manualdownload operations. In this case, to resume auto-download, close themeter tab.

You can also configure auto-download to download only from specificmeters or to ignore specific meters as shown in this section.

Before you begin:• Establish a meter connection in G4.

• If desired, set the location for your downloaded files. See“Downloaded File Destination” in A.2.1 File Options on page A-3.

Step 1 In G4, go to Tools OptionsAuto Download.

Step 2 Select the checkbox in-line with this setting:

Automatically Download From All Spartan Dosimeters and SLMsNot Listed Below

If you want to exclude one or more meters from auto download,complete steps a–c below, otherwise move to step 3.

Creating a Meter Exception to Auto-Download

a. For each meter you want excluded from auto download,connect the meter in G4.

If needed, click Discover Meters so that the meter displaysas active in the Meters or Projects Panel.

b. Click the blue plus icon in-line with Add Individual Case,and select a connected meter from the Meter Name drop-downmenu.

c. If needed, repeat step b. for additional meters.

Step 3 Click Save, then click OK to confirm your choice.

Step 4 Restart G4 for these settings to take effect.

Recommended Next Steps• 2.6 "Viewing Downloaded Data in G4" on page 15

G4 LD Utility Reference Manual Downloading Measurement Data Files 14

2.5.2 Downloading Data Files Manually

APPLIES TO all instruments

Before you begin:• Establish an active meter connection in G4. For details, see

section 2.3 "Connecting the Meter to G4" on page 10.

Step 1 Click on the name of your connected meter in the Meters or ProjectsPanel. This opens a new meter tab on the right showing the Files view.

Step 2 Select and download a file or files by using one of the following methods:

• Click Download All.

TAKE NOTE The Open on Download feature is not available when you click Download All.

• Use shift + select or Ctrl + select to select many files at once,then click Download.

• Select a file by selecting the checkbox that appears to the left ofthe meter icon when you roll over it, then click Download.

• Select all files in the list by clicking the checkbox that appearsabove the file list when you roll over it, then click Download.

• Select Open on Download, select the files you want, and clickDownload. For smaller screens, click the right-side menu

icon (three vertical dots) to access these items.

Recommended Next Steps• 2.6 "Viewing Downloaded Data in G4" on page 15

G4 LD Utility Reference Manual Viewing Downloaded Data in G4 15

2.6 Viewing Downloaded Data in G4APPLIES TO SLM and Spartan dosimeter. For HVM products, see Module 11 Human

Vibration Meter Example.

G4 LD Utility was created to help you visualize, modify, and display yourmeasurement data.

In this section:• 2.6.1 "Using the G4 Files View" on page 15

• 2.6.2 "Adding General Information to Create Search-able DataFiles" on page 18

• 2.6.3 "Opening a File Saved On Your PC" on page 20

2.6.1 Using the G4 Files View

The G4 Files view allows you to access all files stored on a meter andfiles that have been downloaded to your PC. Figures in this sectionshow the Files view for SoundAdvisor 831C. While most features aresimilar for other instruments, your display may differ. To view specificdetails for other instruments, see the module that demonstrates yourinstrument (see Modules 7–11).


Step 1 In G4, click on the name of your connected meter in the Meters Panel orProjects Panel. This opens the meter tab in the Files view as shown inFigure 2-2.


FIGURE 2-2 G4 Meter Tab Files View for SoundAdvisor 831C

1. The Files view menu provides the listed options for files you select in thefile list. Open on Download is not available when using auto-download.

2. Click on a column heading to sort files according to that column.

3. In the Search bar, enter a keyword, project, file name, or date to displayonly files with those matching terms in the file list. Clear the Search bar todisplay the full list again. For details on this feature, see 2.6.2 AddingGeneral Information to Create Search-able Data Files.

4. Page tabs display here when the number of files exceeds the first page.

Step 2 If a file is not downloaded, double-click it; the download begins.

Step 3 Once the file is downloaded, double-click the file; it opens as a new tab inthe main tab display.

FIGURE 2-3 Introduction to the File Tab 1. A new file tab displays next tothe meter tab.

2. File tabs have 3 views: Data,Graph, and Report.

3. The file data is also divided intotabs. The Summary tab, near thebottom of your screen, is the firstvisible tab in the Data view.

1.2. 3.

4.

1.2.

3.


Step 4 If you enabled Measurement History in the measurement setup(configuration), select the Measurement History tab near the bottomof the window to view associated data.

For the measurement shown in Figure 2-4, the data was stored everyhour as a measurement history interval or record. Scroll to the right inG4 to view the Sound Exceedance Count, Duration, Overloads,Trigger Sources and Levels, and OBA Statistics. Your data may differfrom what’s shown here, depending on your firmware, options, andsettings.

FIGURE 2-4 Measurement History Data File (G4 View)

Step 5 If you enabled Time History in the measurement setup (configuration), G4graphs the measured data. Click the Graph view to display it as

shown in Figure 2-5. (Your graph may differ.)

FIGURE 2-5 Graphs View of an Open Data File in G4

1. The values panel follows the cursor and displays levels for where youplace the mouse arrow.

2. Time History Legend. Use the Graph menu to turn this on or off.

3. Graphing Tools. See Table 2.2 Graphing Tool Icons

Scroll to the right to view additional data.

2. 3.1.

4.


.

Step 6 Click the Report view to display a one-page measurement summaryin PDF format with official reporting statistics.

2.6.2 Adding General Information to Create Search-able Data Files

APPLIES TO SLMs and Spartan Model 730

G4 version 4.5 + provides a helpful search bar on the open Meter tab in theFiles view.

FIGURE 2-6 Search Bar on the Meter Tab Files View for 831C

Table 2.2 Graphing Tool Icons

Tool Description

Audio PlaybackThe icon displays from gray to green when a saved sound recording is playing.

Edit BandsSelect and drag the Edit Bands tool over the graph to create an edit band. Data

in the edit band can be excluded from the original data or given a decibel offset. Edit bands with a decibel offset appear as a new section near the

bottom of the Data view called Modified Data.

ZoomSelect and drag the cursor to zoom to that portion of a graph. The view you see

when you zoom is used in the report. Once zoomed in, the Reset Zoom window in the upper right enables you to reset the view.

PanMoves the view of the graph along the X axis.

LegendToggles the legend small or large

Graph MenuUse options on the Graph menu to customize the graph display.


G4 searches the file’s general information (Notes), filename, time stampinformation, meter name, and project name and returns all matching filesin the file list. Clear the search bar to return to the original file list. Thissection shows how to add general information, or Notes, to your data filesprior to and following download.

In this section:• "Adding General Info Prior to File Download" on page 19

• "Adding General Info After File Download" on page 19

Adding General Info Prior to File Download

The Add General feature is an easy way to add keywords or other info identifying information to files. Because the Add General field appends this information to data files as they download to your PC, complete this process before making a measurement if auto-download is enabled, or just before downloading files when auto-download is not enabled.

Before you begin:• Connect the meter to your PC. For details, see section 2.3

"Connecting the Meter to G4" on page 10.

Step 1 In G4, click on the name of your connected meter in the Meters Panel orProject Panel. The meter tab opens on the right.

Step 2 Click Add General, enter desired information, and click OK.

Step 3 Disconnect the meter and make a measurement.

Step 4 Reconnect your meter in G4. Each file downloaded contains the generalinformation you entered.

Step 5 Click Add General and click Clear, or enter identifiers for the nextmeasurement.

Adding General Info After File Download

G4 enables you to add information, such as keywords or otheridentifying terms, to a previously downloaded file. Files with thisinformation are easy to locate by using the search bar in the top right ofthe open meter tab on the Files view.


Step 1 In G4, open a data file on your PC (FileOpen a Data File) or from a

connected meter. The file tab opens on the Data view Summarytab.

Step 2 Add a User, Location, Job Description, or Note in the Summary section,as shown in Figure 2-7.

FIGURE 2-7 Open File on the Data View Summary Tab

Step 3 Click FileSave SLM File or Save Spartan File, depending on the filetype.

Step 4 Close the file and the meter tab (if applicable).

Step 5 In the Meters Panel or Project Panel, click on the connected meter to openthe meter tab. G4 displays the meter tab on the Files view.

Step 6 In the top-right Search field, enter one or more identifying terms. Thecorresponding files display in the file list.

Step 7 Clear the Search bar to display to the original file list.

2.6.3 Opening a File Saved On Your PC

Step 1 To open a file saved on your PC, in G4 go to FileOpen a Data File, andselect the file type you just downloaded from the pop-up menu. Thisopens a file explorer window.

G4 LD Utility Reference Manual Exporting Data to a Spreadsheet 21

Step 2 Navigate to the location of the downloaded file on your PC, select it, andclick Open.

2.7 Exporting Data to a SpreadsheetG4 offers four methods to export data to a spreadsheet.

2.7.1 Exporting Data to a Spreadsheet When Using Auto-Download

Step 1 In an open Meter tab on the Files view, select the checkbox in-line withExport to .xlsx prior to downloading. Auto-download creates an XLSXfile that displays in the file explorer directly below the associated datafile in the downloaded file location.

2.7.2 Exporting Data to a Spreadsheet When Using Manual Download

Step 1 Click on the name of your connected meter in the Meters Panel. The metertab opens in the main tab display on the Files view.

Step 2 Click the checkbox in-line with Export to .xlsx.

Step 3 Select the file or files that you want to download, then click Download.The resulting XLSX file displays just below the associated data file in thedownloaded file location.

2.7.3 Exporting Data to a Spreadsheet When the File is Open in G4

Step 1 With the data file open in G4, choose File Export to Spreadsheet.

Step 2 In the file explorer window that opens, choose the location to save thefile.

Step 3 Give the file a descriptive name, if desired, and click Save.

G4 LD Utility Reference Manual 22

Module 3 Working With Data Files in G4

This module helps you to quickly begin using G4’s file utility features to organizeand otherwise work with data files—some of the most valuable and time-savingfeatures it provides. For best results, complete the steps in Module 2 GettingStarted With G4 LD Utility, then proceed to these sections in the order they’represented.

In this section:3.0.1 Graphing Large Data Files3.0.2 Creating an Edit Band3.0.3 Viewing the SLM Measurement Report

3.1 Packaging Settings and Properties for SLM and HVM ........................................................ 243.1.1 Saving SLM Settings to a File3.1.2 Pushing a Measurement Setup to Multiple Meters for SLM3.1.3 Pushing Settings to Selected Meters for Dosimeters3.1.4 Saving Instrument Settings to Your PC3.1.5 Extracting Properties from a Setup File3.1.6 Exporting Instrument Properties From Your PC to a Meter

3.2 More Data Files Features ...................................................................................................... 293.2.1 Importing Data Files3.2.2 Setting a Default File Name

3.3 Accessing Audio Files in G4 .................................................................................................. 313.3.1 Accessing Your Dosimeter Sound Recording Files3.3.2 Audio Playback for SLMs3.3.3 Listening to Streaming Audio for SLMs3.3.4 Using Command Line Extraction for Audio Files for SLMs

3.0.1 Graphing Large Data Files

A measurement with many, frequent Time History and Measurement Historysamples can result in a very large data file. Enabling the OBA feature in additioncan further increase the file size.

Rendering graphs for this kind of file in G4 may take longer than expected. If thisis the case, G4 may display a dialog box that prompts you to select a portion ofthe full measurement to graph. Table 3.1 Large Data File Constraints describesmeasurements that may trigger this prompt.

Table 3.1 Large Data File Constraints

Your G4# of Time History Records

OBA-Enabled

32-bit G4 > 4,500,000

>300,000 X


If the file contains more than 400,000 Time History records, G4 promptsyou to select a portion of the data to graph.

To do this, enter a Start Time and an End Time in the following format:yyyy/MM/dd HH:mm:ss. Choosing a Start Time does not affect thespreadsheet or other Time History data.

3.0.2 Creating an Edit BandAPPLIES TO 730 Dosimeter and SLMs

The edit band tool allows you to select a period of data and eitherexclude it from the report or add a decibel offset (+/-). LEARN MORE For more information, see the following sections:

• "Using Automatic Exclusion for Bump Events in G4" on page124

• "Creating an Edit Band Exclusion in G4" on page 125

3.0.3 Viewing the SLM Measurement Report

You can generate a report from the following locations:

• File Open Data FileReport

• File Generate SLM Report generates a report for the opendata file.

• Open a data file, navigate to the Time History Graph, andchoose Generate Report from the Graph menu .

The report includes SLM data and modified data. When Time History isenabled, the Time History graph also appears. You can choose to createa PDF to save or share.

64-bit G4 > 8,000,000

> 300,000 X

Table 3.1 Large Data File Constraints

Your G4# of Time History Records

OBA-Enabled

G4 LD Utility Reference Manual Packaging Settings and Properties for SLM and HVM 24

FIGURE 3-1 Generated SLM Report

3.1 Packaging Settings and Properties for SLM and HVMAPPLIES TO 831C, 831, LxT SLMs, HVM

G4 file utility features enable you to export, import, or extract a settingsfile. Once packaged, you can choose to push the settings to one ormore connected meters, or to share the file with another user via email,SFTP, or cloud storage.

G4 also enables you to package the system properties of a meter in afile, then push it to one or more connected meters. This featuresimplifies the process of setting up multiple meters for a commonproject or purpose.

The saved file can also be shared via email, or uploaded to an SFTP orcloud storage account. Complete the applicable segments of thissection that apply to your instrument.

In this section:• 3.1.1 Saving SLM Settings to a File on page 25

• 3.1.2 Pushing a Measurement Setup to Multiple Meters for SLMon page 25

• 3.1.3 Pushing Settings to Selected Meters for Dosimeters onpage 26

• 3.1.4 Saving Instrument Settings to Your PC on page 27

• 3.1.5 Extracting Properties from a Setup File on page 27

• 3.1.6 Exporting Instrument Properties From Your PC to a Meteron page 28


3.1.1 Saving SLM Settings to a File

APPLIES TO 831C, 831, and LxT SLMs

When you create a measurement setup, that configuration is onlyavailable on that meter. Use this process to save it to a portable fileformat that can be saved to your PC or to other meters.

Step 1. In G4, click Setup Manager in the top toolbar.

Step 2. On the right side (meter side), select a meter from the blue meter selection drop-down menu.

Step 3. In the Setup Manager file list for that meter, click to highlight a Setup file,

then click the left transfer arrows to move the file to the left side (PC side). This opens the File Name window.

Step 4. Enter a unique, identifying file name and click OK. The Setup file appears in the file list on the PC side.

Recommended Next Step:• To push the Setup to other meters, see 3.1.2 Pushing a

Measurement Setup to Multiple Meters for SLM on page 25.

3.1.2 Pushing a Measurement Setup to Multiple Meters for SLMAPPLIES TO SLM 831, 831C, and LxT instruments

G4 enables you to push a measurement setup file to multiple meters,and set it as the active setup in one process. If a measurement is inprogress during the push, the measurement stops then resumes usingthe new setup.

Before you begin:• Save a measurement setup file on your PC as shown in 3.1.1

"Saving SLM Settings to a File" on page 25 or 3.1.4 SavingInstrument Settings to Your PC.

• Establish a meter connection (for each meter) in G4.

• If you’re using network security (HTTPS) in G4, log in to eachmeter you are pushing settings to.

Step 1. In G4, go to the Setup Manager.

Step 2. On the PC side (right side) of the Setup Manager, select the instrument you are working with from the blue drop-down menu. (Ex: SoundAdvisor Model 831C Settings in PC), then select the Setup file you want to push from the file list below.


Step 3. On the meter side (right side), select Selected Meters from the blue drop-down menu near the top. Also, if you want the Setup to become immediately active on the meter, select the checkbox in-line with Set Measurement Properties to Active.

Step 4. In the Meters Panel (or Projects Panel) on the far left, verify that each meter (or Project) you want to push the Setup to is selected.

Step 5. Click the right double arrow button to transfer the Setup file.

Step 6. In the pop-up window, enter a unique name for the Setup file and click OK to continue. G4 displays the transfer status in the right side (Meter side).

3.1.3 Pushing Settings to Selected Meters for DosimetersAPPLIES TO Spartan 730 and 730IS


Step 1. In the G4 Meters Panel, in-line with your connected meter, click the menu icon (three dots) and select Push Settings.

FIGURE 3-2 Pushing Dosimeter Settings to Multiple Meters

Step 2. In the window that opens, select the checkbox in-line with meters you want to update.

Step 3. Click Select Settings File.

Step 4. In the File Explorer window that opens, select a Setup file and click Open.


Step 5. Select Push to Meters. If there’s a measurement in progress, the measurement stops and resumes using the new settings.

3.1.4 Saving Instrument Settings to Your PCAPPLIES TO SLM 831, 831C, and LxT instruments

Use this process to save a copy of a Setup file’s properties on your PC.


Step 2. On the meter side (right side), select a meter from the meter selection drop-down menu at the top.

Step 3. Select File Instrument Settings & Properties Import to PC.

Step 4. A dialog box displays all files on the currently selected meter. Choose the file you want to import and click Open.

3.1.5 Extracting Properties from a Setup FileAPPLIES TO SLM 831, 831C, and LxT instruments

Use this process to create a copy of the measurement setup propertiesused for a previous measurement. This process creates a Setup file, whichyou can save to your PC or to another meter.

Step 1. In G4, go to File Instrument Settings & Properties Extract Settings From File.

Step 2. In the File Explorer window that opens, select the measurement setup file to extract, and click Open. G4 displays a success message.

FIGURE 3-3 Extracting Settings Success Message in G4

Step 3. As directed, rename the extracted file.


Renaming the Extracted Filea. With the meter connected in G4, click Setup Manager in the top

toolbar. This opens the Setup Manager tab.

b. Right-click the newly extracted file, which displays at the top of thelist of Setups, and select Save As from the pop-up menu thatappears.

FIGURE 3-4

c. Enter a unique filename in the Save As field and click OK.

LEARN MORE G4 also enables you to push measurement settings to multiple connected meters. For more information on this feature, see section .

3.1.6 Exporting Instrument Properties From Your PC to a MeterTAKE NOTE This feature only works with SLM 831C, 831 and LxT instruments.

Use this process to set the system properties for one or more meterssimultaneously.

Before you begin:• Establish a meter connection (for each meter) in G4.

• Verify that the meter firmware is updated.

• If you’re using network security (HTTPS) in G4, log in to eachmeter you are pushing settings to.


Step 2. On the PC side (right side) of the Setup Manager, select the instrument you are working with from the blue drop-down menu. (Ex: SoundAdvisor Model 831C Settings in PC).

G4 LD Utility Reference Manual More Data Files Features 29

Step 3. Click the System Properties button . The PC side (left side), displays the default System Properties.

Step 4. Use the right or left arrows to access and edit values on any of the following system property tabs:

• Device

• Time

• NTP

• Power

• Preferences

• Locale

• Displays

• Options

• Email

• Other

• Ref Spectra

Step 5. On the meter side (right side), choose Selected Meters from the blue drop-down near the top.

Step 6. In the Meters Panel (or Projects Panel) on the far left, verify that each meter (or Project) that you want to push these System Properties to is selected.

Step 7. Click the right double arrow button to transfer properties. G4 displays the transfer status for each meter on the right side (Meter side).

3.2 More Data Files Features

In this section:• 3.2.1 "Importing Data Files" on page 30

• 3.2.2 "Setting a Default File Name" on page 30

G4 LD Utility Reference Manual More Data Files Features 30

3.2.1 Importing Data Files

You can import measurement files that have been stored on a USBdrive into G4. You can also import legacy SLMDL files, which werecreated by SLM Utility G3 software.

Step 1. To do this, navigate to File Import, and select USB Drive or Legacy Slmdl.

FIGURE 3-5 Import Files into G4

Step 2. In the window that opens, locate and open the file from the location on your PC, or on the inserted USB drive.

3.2.2 Setting a Default File NameG4 enables you to specify a default naming convention for your savedand exported data files.

Step 1. In G4, navigate to ToolsOptions.

Step 2. Select the checkbox in-line with Show Advanced File Naming Option.

Step 3. Enter selected file name codes from the list (or enter text) to create a custom convention, then click Save.

FIGURE 3-6 File Naming Options

EXAMPLE: The filename “SLM_0001025_1460500_LD0.00.ldbin” is the result of the following convention:$I_$S_$N.##

G4 LD Utility Reference Manual Accessing Audio Files in G4 31

3.3 Accessing Audio Files in G4

In this section:• 3.3.1 Accessing Your Dosimeter Sound Recording Files

• 3.3.2 Audio Playback for SLMs

• 3.3.3 Listening to Streaming Audio for SLMs

• 3.3.4 Using Command Line Extraction for Audio Files for SLMs

3.3.1 Accessing Your Dosimeter Sound Recording FilesAPPLIES TO Spartan 730 Dosimeter

When you purchase option 730-ESR, you can find the event soundrecording files for a measurement on the Session Log tab of the Dataview.

Before you begin:• Connect your dosimeter to G4. For more information see 2.3

Connecting the Meter to G4 on page 10.

Step 1. In the Meters panel, click on your connected meter. This opens the Meter tab on the Files view.

FIGURE 3-7 Files View Opens in G4

Step 2. Double-click a file with at least 1 recorded sound event. This opens the file on the Data view.

If auto-download is not enabled, the first double-clickdownloads the file. Double-click the file again to open the fileon the Data view.


FIGURE 3-8 Spartan File Open to the Data View in G4

Step 3. Near the bottom of the page, click the Session Log tab to view a table of all recorded sound events.

FIGURE 3-9 Data View, Session Log Tab

Step 4. Click on a link in the Sound Record column. This opens the G4 media player window, where you can review and save the event recording.

FIGURE 3-10 G4 Media Player Window

3.3.2 Audio Playback for SLMsAPPLIES TO The processes in this section apply to 831C, 831, LxT, 831-INT-ETwhen the Sound Recording firmware option is purchased and installed.

G4 saves streaming audio files in WAV or OGG format. The G4 player canopen both formats. After you download the files to your PC, use any ofthe following third-party programs to play them:

Table 3.2 Sound Recording Compatibility

.WAV files .OGG files

• Windows Media Player • VLC• Google Chrome BrowserExtension for Windows MediaPlayer


Using Playback from a Session LogPlaying a sound recording from the Session Log in G4 can sometimesresult in very quiet, possibly inaudible sound. To amplify the recording,do the following:

Step 1. In G4, navigate to Tools Options, and choose the Miscellaneous tab.

Step 2. Select Enable Amplification. You only need to do this is one time. All future Session Log playback files will also be amplified.

FIGURE 3-11 Enabling Playback Amplification

3.3.3 Listening to Streaming Audio for SLMs

Step 1. Power on your instrument.

Step 2. In G4, select your meter in the Meters Panel. In the meter tab that opens,

select the Manager page.

Step 3. Select the Audio Streaming tab, then click the power icon as shown in Figure 3-12.

TAKE NOTE While streaming audio, the meter is locked for optimal performance. If 2 PCs are connected to the same meter, only one can stream audio at a time. In this case, a dialog box prompts the second connected PC to end the current stream before another can begin.

FIGURE 3-12 Meter Manager Streaming Audio Tab1. Buffer Indicator: Play-back begins when the buf-fer reaches the top.

2.Playback settings

3.Click the Power icon toListen/Stop.

4.Adjust volume

TAKE NOTE If you are using an 831-INT-ET, you can make a TCP/IP connection and listen to streaming audio over a network or the Internet.

3.1.

4.2.


Understanding Streaming Audio SettingsDynamic Range NormalizationWhen this setting is enabled, playback is exponentially more sensitiveand dynamic—even a nearby whisper is audible.

Save to FileWhen you check this setting, G4 enables you to save the streaming filein WAV format. During the streaming, the file updates as it records.

Compress Data (With SoundAdvisor™ Model 831C only)When you select this setting, G4 enables you to save the streamingaudio file in OGG format. The resulting file is about 1/10th the size ofthe same file in WAV format.

3.3.4 Using Command Line Extraction for Audio Files for SLMs

G4 contains a command line system that enables you to extract event,measurement, and voice audio files and save them with a custom namingconvention.

To extract audio files from an LDBIN file, follow these steps:

Step 1. Connect your instrument and download the LDBIN file(s).

Step 2. In G4, navigate to Tools Options Command Line Settings and set up your naming convention and file path.

FIGURE 3-13 Command Line Settings for Audio Files


Step 3. Using the file name codes, construct a file naming system for the extracted audio files. Example: “$L_$E_$T.##” results in an audio file with the following name: 03_1497891141_Measurement-11.00.wav

See the Audio Filename key in Figure 3-13 for the example filename. Werecommend that you include the incremental number in case an audiofile name is repeated. On this line, you can also add specific text youwant to appear in the name.

Step 4. Define the location of the LDBIN file and location to store extracted audio files, and click Save.

TAKE NOTE While the file path locations can be specified in the command line itself, defining it here removes the need to define it in the command line.

The following steps can be done without an instrument connected, andeven while G4 is closed. The only requirements are that the PC has G4and the LDBIN file is downloaded on the PC.

Extracting Audio FilesStep 1. Open Command Prompt.

Step 2. Navigate C:\Program Files\PCB Piezotronics\G4 or the directory where G4 LD Utility is present.

Step 3. Use the command line:

• Short form:G4 -ea all -if {[file name]}

• Long form:G4 -exportAudio {all|m|v|e} –inputFile {[path and] file-name} -destFolder {output directory}

LEARN MORE More information on this and other SDK features can be found in the SDK documentation from Larson Davis.

The following commands can be used for audio file extraction in G4:

Table 3.3 Command Line Extraction

Command Parameter (optional)

"-exportAudio" or "-ea" "all" or any combination of "v", "m", "e" (Voice, Measurement, Event)

"-inputFile" or "-if" file name, include complete path or no path (Partial path not allowed)

"-destFolder" or "-df" (optional)

path for destination folder (Will be created if does not already exist)


Examples: • G4 -exportAudio all -inputFile

"C:\Users\dsmith\Documents\PCBPiezotronics\G4\LDbin\03_SLM_10107_17061900_LD0.00.ldbin"-destFolder "C:\Temp\PCB Piezotronics\G4\SoundRecords\"

• G4 -ea all -if "03_SLM_10107_17061900_LD0.00.ldbin"

G4 LD Utility Reference Manual Updating the G4 LD Utility 37

Module 4 Upgrading Software, Firmware, and OptionsIn addition to meter operation, the G4 LD Utility (G4) is also used toinstall firmware and option upgrades as shown in the followingprocesses.

4.1 Updating the G4 LD Utility .................................................................................................. 37

4.2 Upgrading Meter Firmware ................................................................................................. 37

4.3 Upgrading Firmware Options ............................................................................................. 38

4.4 Enabling or Disabling Firmware Options for SLM .............................................................. 39

4.5 Enabling or Disabling Firmware Options for Dosimeter ................................................... 40

4.1 Updating the G4 LD Utility

Step 1. Locate the G4 installer on the LD USB Drive included with your meter, or at www.LarsonDavis.com/G4.

Step 2. If downloading the file from the website, double-click the appropriate version to download the installer.

Step 3. Unzip or extract the folder to your Desktop.

Step 4. Open the new folder and run setup.exe.

Step 5. Follow the on-screen instructions to install the upgrade.

Step 6. To launch G4, use the shortcut icon on your Desktop , or select G4 from the Start Menu.

4.2 Upgrading Meter FirmwareIn G4 version 4.5 or newer, G4 allows you to upgrade firmware for oneor more meters simultaneously for the following Larson Davisinstruments:

• SoundAdvisor™ Model 831C sound level meters

• SoundTrack LxT® sound level meters

• SoundExpert™ LxT sound level meters

G4 LD Utility Reference Manual Upgrading Firmware Options 38

• Spartan Model 730 dosimeters

• Model 831 sound level meters

• 831-INT-ET docking stations

• HVM200 and HVM100 Human Vibration Meters

Before you begin:• Power on and connect each meter you want to upgrade in G4.

• If you’re using G4 security (HTTPS), log into each meter youwant to upgrade.

Step 1. In the Meters or Projects Panel, click the menu icon in-line with a connected meter.

Step 2. Select Upgrade Firmware from the menu that appears. This opens the Upgrade Firmware window.

Step 3. Click Choose Firmware File. This opens the Windows Explorer to the default location for G4 firmware.

Step 4. Locate and select the firmware file you want to use, then click Open.

Step 5. The Update All Selected Meters checkbox is selected by default. If you want to upgrade only one meter, deselect this checkbox. If you’re updating multiple meters, keep this checkbox selected, then in the Meters or Projects Panel (far left), verify or edit the checkbox in-line with each meter.

TAKE NOTE If you’re using G4 Security (HTTPS), the caution icon displays in-line with each meter you’re not logged in to.

Step 6. In the Update Firmware window, click the Update All Selected Meters button.

4.3 Upgrading Firmware OptionsG4 allows you to easily upgrade or install purchased firmware optionsfor Model 831C, Model 831, LxT, Spartan 730, and HVM200 meters.

G4 LD Utility Reference Manual Enabling or Disabling Firmware Options for SLM 39

Before you begin:• When you purchase a meter upgrade or option, you receive the

firmware option file as an email attachment from Larson Davis.Save this file to your PC on the Desktop.

• Power on your meter and establish a meter connection in G4.

Step 1. In the G4 Meters or Projects Panel, click the menu icon in-line with a connected meter.

Step 2. Select Upload Options from the pop-up menu. This opens the Upgrade Firmware or Options window.

Step 3. Click Choose Options File. This opens the File Explorer to the default firmware folder.

Step 4. In the File Explorer, navigate to the Desktop (or to the location of the OP831C file you saved), select the file you want to install, and click Open.

Step 5. Confirm your choice by clicking Upload Options. A progress bar under the Upload Options button shows the status of your update and a series of progress screens.

Step 6. To confirm the installation, do the following:

• On 831C (and other SLMs), navigate to Tools 3 About Options to view your currently installed options.

• On Spartan 730, open the meter tab in G4, go to Tools About.

LEARN MORE For information about customizing the way your firmware options display for 831, LxT, and 831C, refer to the instrument manual.

Step 7. Complete 4.4 Enabling or Disabling Firmware Options for SLM to enable the installed option.

4.4 Enabling or Disabling Firmware Options for SLMOnce you download and install optional firmware, it’s automaticallyenabled on your meter. To disable a firmware option, complete theprocess described in this section.

G4 LD Utility Reference Manual Enabling or Disabling Firmware Options for Dosimeter 40

Step 1. In G4, click on the name of your connected meter in the Meters or Projects Panel. The meter tab opens on the right.

Step 2. Select the Live View page.

Step 3. Click the menu icon in the top left, then choose Options from the menu that appears.

Step 4. Select the checkbox in-line with the option you want to enable or disable.

TAKE NOTE If you have unsaved data or are currently running a measurement, the meter notifies you that a reset is needed to save the Options settings. Select OK and press the Reset 1 button to reset the measurement.

Step 5. Click Close to save your selections, then reboot your meter.

4.5 Enabling or Disabling Firmware Options for DosimeterRefer to the Spartan 730 Dosimeter Manual. In G4, go to HelpManuals Spartan 730 Dosimeter Manual.

G4 LD Utility Reference Manual Using the Meter Lock 41

Module 5 Managing Security in G4G4 LD Utility (G4) software version 4.5 or newer provides the following securitymethods for your Larson Davis instruments:

In this module:5.1 Using the Meter Lock ............................................................................................................ 41

5.1.1 Using the Meter Lock for 831C in G45.1.2 Using the Meter Lock for 831/LxT in G45.1.3 Using the Meter Lock for Spartan 730 Dosimeter in G4

5.2 Using Network Security for 831C ......................................................................................... 465.2.1 Enabling Network Security in G4

5.3 Using 831C Security for Advanced Admin ........................................................................... 485.3.1 Obtaining a Digital Certificate5.3.2 Uploading a Digital Certificate

5.1 Using the Meter LockIf you are concerned about preventing unauthorized use or tampering with thephysical meter, complete the process in this section to lock the meter display andbuttons.

In this section:• 5.1.1 Using the Meter Lock for 831C in G4

• 5.1.2 Using the Meter Lock for 831/LxT in G4

• 5.1.3 Using the Meter Lock for Spartan 730 Dosimeter in G4

Table 5.1 Security Options Available by Instrument

Instrument Available Security

SoundAdvisor 831C meter locknetwork (HTTPS)

Model 831 meter locknetwork (HTTPS)

LxT Models meter locknetwork (HTTPS)

Spartan 730/730IS Dosimeter meter locknetwork (HTTPS)


5.1.1 Using the Meter Lock for 831C in G4

In this section: • Locking the 831C in G4

• Unlocking the 831C in G4

Locking the 831C in G4

Before you begin:• Connect your meter in G4

Step 1. Double-click on the name of your connected meter in the Meters Panel (or Projects Panel). This opens the meter tab in the main tab display.

Step 2. Select the Manager page, then the Maintenance tab.

Step 3. Click the Lock/Unlock button.

Step 4. In the window that opens, choose an option from the Lock Mode drop-down menu.

In each lock mode option, the meter displays differently, and certainmeter operations are restricted. Refer to Table 5.2 to understand whichlock mode fits your measurement needs.

Table 5.2 Allowed Operations Per Lock Mode

Lock Mode Available Operations

Meter Display File Store Notes

Lock with Auto Store: When the measurement is stopped, the “Measurement OK?” dialog box appears. Select Yes to save the measurement with an auto-generated file name. Select No to cause a reset without saving.

RunPauseStopResetCalibration

Live View page 1 only (Big Digit Format)

If your System Properties indicate an Auto-Store prompt, you are prompted to change the file name and save the file. If you select No, the measurement stops and data remains unsaved on the meter.

Lock with Manual Store RunPauseStopResetCalibration

If you use this mode, be sure to select an auto-store option in your current Setup. The measurement runs and stores as indicated in the Setup.


Step 5. Enter an Unlock Code. This code can be 1–4 digits. The first digit should not be a zero. If you set “0123” as your code, the meter saves it as “123”.

TAKE NOTE Please record your unlock code in a secure place.

Step 6. If desired, select the checkbox in-line with Allow Calibration when Locked. When you select this option, you can calibrate the 831C any time a measurement is not running, even when locked.

LEARN MORE For more information on calibrating the meter while locked, go to Help Manuals SoundAdvisor 831C Manual section 5.4.1.

Step 7. Click Save, then click Upload. The unlock code is uploaded to the meter and the meter is locked.

Unlocking the 831C in G4

Before you begin:• Connect your meter in G4.

Step 1. Double-click on the name of your connected meter in the Meters Panel. This opens the meter tab on the right.



Step 4. From the Lock Mode drop-down, click Unlock, then click Upload. TRY THIS If you have the meter in hand, you can also enter the Unlock Code shown in G4

directly into the Unlock Code dialogue on the meter using the meter buttons.

Fully Locked: RunPauseStopResetCalibration

Lock screen only

If you use this mode, be sure to select an auto-store option in your current Setup. The measurement runs and stores as indicated in the Setup.

Table 5.2 Allowed Operations Per Lock Mode (Continued)


5.1.2 Using the Meter Lock for 831/LxT in G4

In this section: • "Locking the 831/LxT Model in G4" on page 44

• "Unlocking the 831/LxT Model in G4" on page 44

Locking the 831/LxT Model in G4


Step 1. Double-click on the name of your connected meter in the Meters Panel (or Projects Panel). This opens the meter tab on the right.



In the window that opens, choose an option from the Lock Mode drop-down menu.

Unlocking the 831/LxT Model in G4





Step 4. From the Lock Mode drop-down, click Unlock, then click Upload.

5.1.3 Using the Meter Lock for Spartan 730 Dosimeter in G4APPLIES TO Model 730 and 730IS


In this section: • Locking the 730 Dosimeter in G4

• Unlocking the 730 Dosimeter in G4

Locking the 730 Dosimeter in G4


Step 1. Double-click on the name of your connected meter in the Meters Panel (or Projects Panel). This opens the meter tab on the right.

Step 2. Select the Tools page, then click the Lock button.

Step 3. Enter a Lock Code, then click Upload. This code can be 1–4 digits. The first digit should not be a zero. If you set “0123” as your code, the meter saves it as “123”.

TAKE NOTE Please record your unlock code in a secure place.

Unlocking the 730 Dosimeter in G4



Step 2. Select the Tools page, then click the Unlock button.

Step 3. Enter the Unlock Code, then click Upload.

G4 LD Utility Reference Manual Using Network Security for 831C 46

5.2 Using Network Security for 831CThe SoundAdvisor™ 831C network security feature is intended toprotect a meter from unwanted interference or tampering whenoperating over a remote connection using G4, the LD Atlas app, or abrowser (We recommend Google Chrome™1).

There are 3 levels of 831C network security available. When enabled,meter communications use secure communication protocol (HTTPS,Port 443).

• Secure (https)/ No Authentication

With this option enabled, users have full meter access to all featuresexcept the Accounts feature (and the 831C Scheduling feature, ifinstalled). Access to accounts (and Accounts with Scheduling firmware)requires administrator credentials.

• Secure (https)/ Authentication Open Guest

The Open Guest log in allows anyone to monitor the Live View inG4. This option also provides access the following options from the LiveView Tools menu, as shown in Figure 5-1.

FIGURE 5-1 Open Guest Account, Live View Tools Menu Available Options

1. Tools About

This provides the instrument information shown here.

2.Tools Setup WiFi:

This allows you to view the IP address, connect to an already known WiFi network, and set the meter as a WiFi access point.

1. Google Chrome is a trademark of Google, LLC.

1.

2.

G4 LD Utility Reference Manual Using Network Security for 831C 47

• Secure (https)/ Authentication Log in RequiredThis option provides the highest level of security. When enabled, click on a meter in the Meters Panel, to access the Log in screen, which invites users with a current account and password to log in before displaying any meter information.

When you connect to a meter using the LD Atlas app or a browser usinga security option that requires authentication, you are prompted toaccept or decline the certificate. You must accept the certificate beforeproceeding. When using G4, you do not need to accept a certificate toconnect to a meter securely.

5.2.1 Enabling Network Security in G4

To enable network security for a Larson Davis 831C, log in to the meteron an Administrator account, and select an option from the Securitydrop-down menu as shown in Figure 5-2.

FIGURE 5-2 Accounts/Schedule Page in G4 This method also enables you to choose aSecurity Inactivity Timeout value. If aconnected meter doesn’t receive activity from theuser for a period greater than the selected value,the meter automatically logs the user out.

Available Inactivity Timeout Values are 5, 10, 30,or 60 minutes.

For complete details on accounts and choosing asecurity option, see 6.1.2 "Creating a New 831CAccount in G4" on page 53.

G4 LD Utility Reference Manual Using 831C Security for Advanced Admin 48

5.3 Using 831C Security for Advanced AdminIn addition to previous security methods in this module, full networksecurity is achieved because all messages between communicatingdevices are encrypted using a key. This is done in such a way that onlythe intended recipient has the key to decrypt them. This key is called adigital certificate.

A Larson Davis instrument or meter (with firmware version 4.5 or neweris capable of generating a self-signed digital certificate. The meter usesthis certificate to validate that a connection request comes from atrusted source. In addition to using the self-signed certificate, it is alsopossible to obtain your own, unique digital certificate.

To make use of your own digital certificate, you will need to coordinatewith your IT professional to set up a dedicated DNS for your meter.Once this is complete, it’s possible to obtain your own digitalcertificates from a Certifying Authority as shown in the followingsections.

Recommended Next Steps:• 5.3.1 Obtaining a Digital Certificate

• 5.3.2 Uploading a Digital Certificate

5.3.1 Obtaining a Digital Certificate

You can obtain your own digital certificate by applying for one from aCertifying Authority (CA).

Before you begin:• You must have a dedicated DNS for your meter to use this

feature. See your IT professional for more information.

Step 1. Search for “Certifying Authority” on the Internet, and select one.

Step 2. Log in to the CA system, select your type of online entity, complete necessary details, provide proof of identity, address, and payment.

Step 3. Receive a confirmation email and postal mail from the CA, which you may use to retrieve your digital certificate.

G4 LD Utility Reference Manual Using 831C Security for Advanced Admin 49

Recommended Next Step:• 5.3.2 Uploading a Digital Certificate

5.3.2 Uploading a Digital Certificate

Complete the process in this section to upload your own digitalcertificate or email certificate to your meter.

Before you begin:• You must have a dedicated DNS for your meter to use this

feature. Talk to your IT professional for more information.

• Complete 5.3.1 Obtaining a Digital Certificate.

• When uploading an email certificate, check with your CertifyingAuthority for details and/or restrictions on email encryptionusing certain email providers.

• Establish an active meter connection in G4.

Step 1. In G4, click on the name of your connected meter in the Meters Panel (or Project Panel).

Step 2. Select Manager to open the Meter Manager page.

Step 3. On the Meter Manager page, click the blue menu button in the top right, then select Maintenance from the drop-down menu.

Step 4. Choose Upload Security Certificate or Upload Email Certificate, depending on which file you’re using. This opens the File Explorer.

Step 5. In the File Explorer, locate and select the certificate file (.pem), then click Open. G4 confirms the file has been uploaded to the meter.

G4 LD Utility Reference Manual Getting Started With 831C Accounts in G4 50

Module 6 G4 Features for SoundAdvisor® 831C The following features in G4 are only available for the 831C. Some featuresrequire the purchase of optional firmware, and may not be visible to all users.

In this module:6.1 Getting Started With 831C Accounts in G4 .......................................................................... 50

6.1.1 Transitioning 831C Accounts to G4 Version 4.56.1.2 Creating a New 831C Account in G46.1.3 Editing an 831C Account in G46.1.4 Copying 831C Accounts to Multiple Meters6.1.5 Understanding Alert Notifications6.1.6 Resetting an Account Password

6.2 Configuring Data Storage Preferences for 831C ................................................................. 596.2.1 Setting File Storage Meter Preferences6.2.2 Setting a Default File Storage Location for G46.2.3 Calculating Data Storage Requirements6.2.4 Setting Up Cloud Storage for Data Files

6.3 Using Scheduling Firmware (831C-SCH) ............................................................................. 616.3.1 Creating Schedule Blocks6.3.2 Copying Accounts/Schedule to Multiple Meters

6.4 Using G4 Security Features for 831C ................................................................................... 67

6.1 Getting Started With 831C Accounts in G4APPLIES TO 831C SLM with G4 version 4.5 or newer

If you plan to use alert notifications or meter security for your SoundAdvisor831C, each person who uses the instrument should have a user account. Ifyou don’t plan to use these features, this section is optional.

There are 3 account types: Administrator, Standard, or Guest. Meters withaccounts should have at least one Administrator account, which createsother users for that meter, sets alert notifications for each account, hasaccess to operate the meter, enables network security (HTTPS) features, andreceives alert notifications.

Standard accounts can log in to a meter to operate it remotely and receivealert notifications. Guest accounts are “read-only”. Guest users can log into ameter to view—but not edit—the meter display, and receive alertnotifications.

With user accounts, when G4 security (HTTPS) protocol is enabled for a meterby someone with an administrator account, only users with a valid user nameand password can access the connected instrument to edit a measurement


setup or view data. For more information on G4 security see, Module 5Managing Security in G4.

Additionally, when used in conjunction with the firmware option,Scheduling for 831C (831C-SCH), users can schedule the followingmeter operations:

• meter run time• periods during which they receive alert notifications from an

instrument• sound exceedance and event triggers (when using

measurement history, time history, event logging firmwareoptions)

• periods of low power consumption for systems using a modem

If you had alert notifications for email or text set up on the meter beforeupdating to version 4.5 or newer, each email address is imported as astandard user account, and each email/account continues to receivethe same notifications they previously set. To finish transitioningaccounts, begin with section 6.1.1 Transitioning 831C Accounts to G4Version 4.5.

If no alert notifications were previously set up on the meter, begin with6.1.2 "Creating a New 831C Account in G4" on page 53.

In this section:• 6.1.1 Transitioning 831C Accounts to G4 Version 4.5

• 6.1.2 Creating a New 831C Account in G4

• 6.1.3 Editing an 831C Account in G4

6.1.1 Transitioning 831C Accounts to G4 Version 4.5

If you have email or text alert notifications saved on the meter,upgrading G4 and your meter firmware automatically transitions youremail and alert notification settings to a standard account. After thetransition, notifications are specific to each account. Log in to anaccount to view or edit alert notifications as shown in this section.


• If you plan to use network security for the 831C, review the 3levels of security described in 5.2 "Using Network Security for831C" on page 46.

Step 1 In the Meters Panel, click on the name of your connected meter. Thisopens the meter tab on the right.


Step 2 Click the Profile icon , and select Profile from the drop-down menu.This opens the Accounts/Schedule page.

Step 3 In the User List, click the pencil icon in-line with your account. Thisopens the Edit Account window.

Step 4 Verify or edit your account information in the following fields:

• Display Name

• Log In (email address)

• Address for Texts

TAKE NOTE Contact your cellular provider for information about how to receive text messages to your phone using an email gateway (MM3 messaging). Some popular provider gateways include:

• Password and Confirm password

TAKE NOTE If you don’t plan to use security (HTTPS) for the meter, you may leave the password blank. For example: if the accounts are only used for email notifications and no security is required.

Step 5 Select Administrator Account, then click Save. The first account on eachmeter must be an Administrator account.

Step 6 G4 asks you to confirm this choice for Only This Meter, or for All SelectedMeters (in the Meters Panel).

TAKE NOTE To edit the selected meters, select or deselect the checkbox in-line with each meter in the Meters Panel (or Projects Panel) on the far left.

Step 7 On the Accounts/Schedule page, edit or verify your Security level, andset a Security Inactivity Timeout value, if needed.

LEARN MORE See 5.2 "Using Network Security for 831C" on page 46.

Verizon “[your phone number]@vzwpics.com”

TMobile “[your phone number]@tmomail.net”

Sprint “[your phone number]@messaging.sprintpcs.com”

AT&T “[your phone number]@text.att.net”

Virgin “[your phone number]@vmobl.com”


Step 8 Select your meter in the Meters Panel (or Projects Panel). If G4 does notautomatically reboot your meter, manually reboot your meter to savethe changes.

Step 9 Finally, edit or verify the previously designated email server on the meter.See “Connecting the 831C to an Email Server” on page A-16.

6.1.2 Creating a New 831C Account in G4

This section details the initial setup of accounts for one or moreinstruments in G4. An Admin user should complete this process.

Before you begin:• Update your G4 software to version 4.5 or newer

• Connect your meter in G4. For help with this, see 2.3"Connecting the Meter to G4" on page 10.

Step 1. In G4, click on the name of your connected meter in the Meters Panel.

Step 2. If you are prompted to log in (G4 security/HTTPS is enabled), log in withyour Username and Password when prompted. This opens the metertab on the right.

Step 3. In the meter tab that opens, click the Profile icon in the top right.This opens the Accounts/Schedule page.

Step 4. On the Accounts/Schedule page, click Add User. This opens thecreate New Account dialog.

Step 5. In the top half of the New Account dialog, enter your user information inthe following text fields:

• Display Name

• Log In (email address)

• Address for Texts

TAKE NOTE Contact your cellular provider for information about how to receive text messages to your phone using an email gateway (MM3 messaging). Some popular provider gateways include:

Verizon “[your phone number]@vzwpics.com”


• Password and Confirm password

TAKE NOTE If you don’t plan to use security for the meter, you may leave the password blank. For example: if the accounts are only used for email notifications and no security is required.

Step 6. Below the password fields, select the checkbox in-line with the accounttype. The first account on a meter must be an Administrator account.

Step 7. In the table below the account type, select the checkbox for Email orText in-line with each type of alert notification you would like to receive.

For details about when and how alert notifications are sent, see 6.1.5"Understanding Alert Notifications" on page 55.

Step 8. If you have an Administrator account, edit or verify your Security level,and set a Security Inactivity Timeout value below the User List. Thisoption is inactive for those with Standard and Guest accounts.

LEARN MORE See 5.2 "Using Network Security for 831C" on page 46.

Step 9. Click Create New Account. The screen name for the account appears inthe User List.

Step 10 Finally, to receive alert notifications, add or verify a previouslydesignated an email server on the meter. See “Connecting the 831C toan Email Server” on page A-16.

6.1.3 Editing an 831C Account in G4

APPLIES TO 831C SLM with G4 version 4.5 or newer

Before you begin:• Connect your meter in G4. (Connecting the meter to your PC via

USB bypasses the log on and authentication process.)

Step 1 Click on the name of your connected meter in the Meters Panel.

TMobile “[your phone number]@tmomail.net”

Sprint “[your phone number]@messaging.sprintpcs.com”

AT&T “[your phone number]@text.att.net”

Virgin “[your phone number]@vmobl.com”


Step 2 If you’re prompted to log in (G4 security/HTTPS is enabled), log in withyour Username and Password. This opens the meter tab on the right.

Step 3 In the meter tab that opens, click on the Profile icon in the top right.This opens the Accounts/Schedule page.

FIGURE 6-1 Accounts/Schedule Page User ListThe User List icons provide the followingactions for each account:

Edit Account: Click here to edit your alertnotifications.

Edit/change Password

Message User: This feature is not currentlyavailable.

Delete Account

6.1.4 Copying 831C Accounts to Multiple Meters

Once you have user accounts set up in G4, Admin users can copy andpush accounts to other meters. In this way, users can have access tomultiple instruments.

For details on this process, see 6.3.2 "Copying Accounts/Schedule toMultiple Meters" on page 66.

6.1.5 Understanding Alert Notifications

Through your 831C user account, you can enable email or text alertnotifications for system events, such as when the instrumenttemperature changes, or when data storage capacity is getting low. Fordetails on alert notifications, in G4 go to Help Manuals SoundAdvisor831C Manual. This section provides details about each notification typeand send/receive times.


FIGURE 6-2 Example Email Alert Notification

Settings Alert NotificationsWhen you edit settings or preferences on the meter, the 831C sends analert notification with information about which settings changed.

MemoryThe 831C sends an alert notification for Memory when the primarymemory storage (free space) is 25%, 10%, and 0%. Primary memorystorage can be internal or USB.

To prevent multiple messages: if a notification is sent, free memoryspace can raise up to 5% of the trigger level before another alert can besent.

For information about setting the primary memory storage location,see 6.2 "Configuring Data Storage Preferences for 831C" on page 59.

TemperatureA temperature alert notification with the instrument’s currenttemperature is sent when the internal temperature of the meter isoutside of 70°C and -40°C.

To prevent multiple messages: if a notification is sent, the temperaturecan rise above the trigger (-40°C) or fall below the trigger (70°C)multiple times until the temperature rises/falls at least 5°C. If the sameconditions are met again, after that, another alert notification is sent.


PowerThere are 4 available alert notifications for power for SLMs:

• Low external power: sent when power reaches External ShutoffVoltage + 0.6 V

• Meter is shutting down due to low external battery. This is sent 4seconds prior to shut down

• Power from mains (AC or solar power) is lost, and meter isrunning on external battery for more than 30 minutes

• If power lost alert is sent, then power is restored to mains for atleast 3 minutes, an alert is also sent

To prevent multiple messages: after an alert is sent, the voltage can riseup to 0.5 V before another alert can be sent if the conditions are met.

Run StateThe Run State alert sends a notification for each Run, Stop, Pause, orReset on the meter.

CertificationYou can enable an alert notification during the meter’s startup if thecalibration date is expired, or if the reminder for calibration is due. Thisalert occurs once every 24 hours, when enabled.

LEARN MORE For more information, see the calibration section of your instrument manual.

Events and Event StartWhen this is enabled you will receive an alert notification at the start ofan event (when the sound level exceeds the Trigger Level youdetermined in the Setup (Event Triggers page), and when the event iscomplete. For details on events and using Event History, in G4 go toHelp Manuals SoundAdvisor 831C Manual Module 17.

Measurement HistoryWhen this is enabled, you will receive an alert notification if the soundlevel at the end of a measurement interval exceeds the Trigger Levelyou determined in the Setup (Control page). For details on usingMeasurement History, in G4 go to Help Manuals SoundAdvisor831C Manual Module 15.

Cloud Push InfoWhen this setting is enabled, you receive an alert notification when afile is saved to your SFTP or cloud storage account.

Cloud Push FailureWhen this setting is enabled, you receive an alert notification when afile fails to save to your SFTP or cloud storage account.


Clear QueueIf a network connection is not available, the meter queues alertnotifications to send once the connection is re established. If you don’twant these older notifications to send, click the Clear Queue button todelete them.

TAKE NOTE The arrival time of a notification may be impacted by Internet performance.

Preventing Duplicate Alert Notifications and Spam

To protect recipients from receiving duplicate alert notifications for the sametrigger when the state of the meter fluctuates around that trigger, the 831Chas a hysteresis, or threshold, for multiple notifications that concern thefollowing alert details:

• Memory: If a notification is sent, free memory space can raise up to5% of the trigger level before another alert can be sent.

• Temperature: If a notification is sent, the temperature can rise abovethe trigger (-40°C) or fall below the trigger (70°C) multiple times untilthe temperature rises/falls at least 5°C. If the same conditions are metagain, after that, another alert notification is sent.

• Low external power: After an alert is sent, the voltage can rise up to0.5 V before another alert can be sent if the conditions are met.

6.1.6 Resetting an Account Password

You have a few options to bypass a forgotten password. First, the meteradministrator has all access to user accounts on the meter and can login using their account to update your password for you.

Otherwise, choose one of the remaining process in the section to resetyour password.

Resetting an 831C Account Password by Using Email

If you’d prefer to request an email reset code, complete this process inthis section.

Step 1 When logging into a meter, if you’ve forgotten your password, clickForgot Password. G4 sends you a password reset link.

G4 LD Utility Reference Manual Configuring Data Storage Preferences for 831C 59

Step 2 Enter a New Password, then enter it again in the Confirm Passwordfield.

Step 3 Check your mail, enter the code you received in the Code field in G4, andclick Log In.Make note of your changed password.

6.2 Configuring Data Storage Preferences for 831CAPPLIES TO SLM only

In this section: • 6.2.1 Setting File Storage Meter Preferences

• 6.2.2 Setting a Default File Storage Location for G4

• 6.2.3 Calculating Data Storage Requirements

• 6.2.4 Setting Up Cloud Storage for Data Files

6.2.1 Setting File Storage Meter Preferences

In this step, choose how and where files are saved when ameasurement stops.

Step 1 Complete the process shown in “Configuring System Properties in theSetup Manager” on page A-9, and choose the Setting Meter StorageProperties option.

6.2.2 Setting a Default File Storage Location for G4

G4 enables you to select a custom storage location for downloadeddata files. The location of this setting is shown in the section“Downloaded File Destination” in “File Options” on page A-3.

G4 LD Utility Reference Manual Configuring Data Storage Preferences for 831C 60

6.2.3 Calculating Data Storage Requirements

The G4 Live View Memory page includes a data storage calculator thatcan help you estimate the amount of storage a measurement mightrequire for the SoundAdvisor 831C.

Before you begin:• Create the measurement Setup file, and set it as the Active

Setup on the meter or in G4. For more information, refer to themanual for your instrument.

Step 1 In the G4 Meters Panel, click on the name of your connected meter.

Step 2 Select the Live View tab, and scroll up to display the Memory Page, whichis the last page of the Live view.

FIGURE 6-3 Live View tab (Memory Page)

Step 3 In the Num Events field, enter the number of events you expect to occurduring this measurement.

Event Cal (ea) displays the amount of memory required for each event.

TAKE NOTE This value includes sound recordings, when enabled.

Time History: When 2 values display on this line, the first value is theamount of memory required to store each hour of time history data.The second value is the amount of memory required to store each dayof time history data.

6.2.4 Setting Up Cloud Storage for Data Files

When a measurement data file is automatically or manually saved, youcan save it on the meter, to a USB drive, or upload directly to a remotestorage service such as Dropbox™1 or an SFTP account. In this step youwill complete the initial cloud storage setup.

1. Dropbox is a registered trademark of Dropbox, Inc. in the US and other countries.

G4 LD Utility Reference Manual Using Scheduling Firmware (831C-SCH) 61

To do this, complete the process shown in “Configuring SystemProperties in the Setup Manager” on page A-9, and choose the sectioncalled Setting Cloud Storage Properties.

6.3 Using Scheduling Firmware (831C-SCH)APPLIES TO 831C with purchased firmware option 831C-SCH

The optional G4 Scheduling firmware allows you to operate a meterbased on a repeatable weekly schedule with schedule blocks for thefollowing meter functions:

• Meter Run, Stop, Store

• Specific Measurement Trigger Levels

• Alert Notifications

• Modem Low Power (for NMS044/045 systems only)

In this section:• 6.3.1 Creating Schedule Blocks

• 6.3.2 Copying Accounts/Schedule to Multiple Meters

6.3.1 Creating Schedule Blocks

Schedule blocks enable you to schedule meter run time, settings, andother features. Schedule blocks display on the meter schedule, which isin the form of a calendar week. This section demonstrates how tocreate schedule blocks on the meter schedule.

In this section:• Scheduling a Meter Run Block

• Scheduling a Measurement Triggers Block

• Scheduling a Modem Low Power Mode Block

• Scheduling an Exception Block


Scheduling a Meter Run Block

Before you begin:• Enable the Accounts/Schedule firmware option from Larson

Davis, as shown in 6.3.2 Copying Accounts/Schedule toMultiple Meters.

• Use the Meters Panel to verify that your meter is connected toG4.

• If you’re using Secure G4 (HTTPS), you must be logged in as anAdministrator to continue. If you’re scheduling for more thanone meter, log in to each meter now. For more information oncreating user accounts or creating an Administrator account,see 2.4 "Creating a Measurement Setup and Making aMeasurement" on page 12.

Step 1. In the G4 Meters Panel, click on your connected meter. This opens themeter tab.

Step 2. Click Accounts/Schedule. TAKE NOTE If you are not logged in to the meter as an Administrator, click Log

In Now, enter your credentials, and click Log In to proceed.

Step 3. Click Show Schedule. The schedule displays on the Active Viewtab, which is a read-only view. No changes to the schedule can be madeon this tab.

Step 4. To schedule measurement time for a meter, click Recurring Week,and click and drag to select the desired meter run time.

TAKE NOTE Items are scheduled in 15 min increments.

Step 5. In the Run Block pop-up window, if needed, edit the Start and Stop timeand select Store on End, then click Save.

Step 6. Next, make the schedule active. To do this, click the checkbox in-linewith each schedule block type that should be active near the top of yourscreen, including the Run checkbox , Modem checkbox

, Alerts checkbox , Triggers checkbox .LEARN MORE For more information about scheduling, including scheduling

exceptions to the weekly recurring schedule, see Scheduling an Exception Block.


TRY THIS To quickly duplicate schedule blocks, hold CTRL, then click and drag the copied schedule block to a new time slot.

Scheduling a Measurement Triggers Block


Davis (831C-SCH), as shown in 6.1.2 Creating a New 831CAccount in G4.


• If you’re using Secure G4 (https), you must be logged in as anAdmin user to continue. If you’re scheduling for more than onemeter, log in to each meter now. For more information oncreating user accounts, go to Module 5 Managing Security inG4.







Step 5. In the Triggers Block pop-up window, select Triggers as the Block Type.

Step 6. Choose a Triggers Setup from the drop-down menu.

If you want to create a new Triggers Setup, complete the followingprocess:


Creating a Triggers Setupa. Click the plus icon to the right of the Triggers Setup drop-

down menu, and enter a unique name in the Setup Name field.

b. Select at least one Trigger Source from the drop-down menu,and enter the desired Trigger Level in dB.

TAKE NOTE You can enter up to 3 Trigger Sources with Trigger Levels for this Setup.

c. If you have the OBA firmware option installed and enabled,select from available options for Full Octave and/or ThirdOctave data collection.

d. Click Save. The new Triggers setup appears on the schedule.





Scheduling a Modem Low Power Mode Block

APPLIES TO NMS044 or NMS045 with SoundAdvisor™ 831C

This option is available if you’re operating the NMS044 or NMS045 systemwith the Model 831C. This feature also has specific hardwarerequirements. In G4 go to Help Manuals SoundAdvisor™ Model831C for complete information.


Davis (831C-SCH), as shown in Module 4 Upgrading Software,Firmware, and Options.

• Establish an active meter connection in G4.

• If you’re scheduling for more than one meter, log in to eachmeter now. For more information on creating user accounts, goto Module 5 Managing Security in G4.








Step 5. In the Run Block pop-up window, select a Block Type, Start, and Stoptime, and then click Save.

TAKE NOTE If desired, select the checkbox in-line with Store on End.





Scheduling an Exception Block


Davis, as shown in Module 4 Upgrading Software, Firmware,and Options.



• If you’re using network security (HTTPS), you must be logged inas an Admin user to continue. If you’re scheduling for more thanone meter, log in to each meter now. For more information oncreating user accounts, see 6.1.2 "Creating a New 831CAccount in G4" on page 53.


Step 2. Click Accounts/Schedule. TAKE NOTE If you are using network security (HTTPS) and you are not logged

in to the meter as an Administrator, click Log In Now, enter your credentials, then click Log In to proceed.

Step 3. Click Recurring Week, then click Exceptions to edit the weeklyschedule.

Step 4. Click Add Exception, and select a date from the calendar drop-down menu.

Step 5. Set all applicable options for the type of schedule block, and click Save.

The exception displays on the Active View tab, with a star onthe date to indicate an exception to the recurring weekly schedule.

Step 6. Next, verify that the schedule block for the exception is active. To do this,click the checkbox in-line with each schedule block type that should beactive near the top of your screen, including the Run checkbox ,Modem checkbox , Alerts checkbox , Triggerscheckbox .

6.3.2 Copying Accounts/Schedule to Multiple MetersAPPLIES TO 831C with purchased option 831C-SCH.

Before you begin:• Log in to each meter you want to copy to.

Step 1. In the G4 Meters Panel, click on the name of your connected meter. Themeter tab opens on the right.

G4 LD Utility Reference Manual Using G4 Security Features for 831C 67

Step 2. Click Accounts/Schedule, and log in to the meter when prompted.

Step 3. Click Show Schedule.

Step 4. In the main window, select the checkbox in-line with each scheduleblock item that you want active when the schedule is copied, includingthe Run checkbox , Modem checkbox , Alertscheckbox , Triggers checkbox .

Step 5. Click Copy. This opens the Copying to Meters window.

Step 6. In the Meters Panel, click the checkbox in-line with meters or Projectsyou want to push the current schedule and associated accounts to.

TAKE NOTE When using network security in G4, a warning icon appears in-line with meters you are not logged in to. Log in to those meters to continue.

Step 7. In the Copying to Meters window, click Selected Meters, then click OK toconfirm.

TAKE NOTE When you create a new user and push a schedule to a new meter, passwords are not pushed to the meter. Log in to the meter to set a password. If the schedule fails to transfer, disconnect then reconnect your meter to G4 and repeat this process.

6.4 Using G4 Security Features for 831CG4 provides both meter security and network security for metersoperating remotely. For more information on meter security features,see 5.1.1 "Using the Meter Lock for 831C in G4" on page 42. Forinformation on network security features, see 5.2 "Using NetworkSecurity for 831C" on page 46.


Module 7 Environmental Noise Study ExampleThis module provides an example procedure for performing a sound levelmeasurement and working with the resulting data by using the LD Model 831C withG4 in SLM mode. You can also follow these procedures when using these otherinstruments from Larson Davis:

• SoundAdvisor Model 831

• SoundExpert™ LxT®, SoundTrack LxT®, N/Forcer, or LXT1 Models (not allfeatures will be available)

Process Overview:7.1 Setting Up the Measurement ............................................................................................... 69

7.1.1 Calibrating the Instrument in G47.1.2 Performing a Calibration Check in G47.1.3 Setting a Data Storage Preference

7.2 Creating a Setup File in G4 ................................................................................................... 717.2.1 Naming the Setup7.2.2 Choosing Measurement Weighting, Detection, and Integration Method7.2.3 Choosing Octave Band Analysis Settings7.2.4 Choosing Ln Values7.2.5 Choosing Meter Control Settings7.2.6 Choosing Time History Settings7.2.7 Choosing Exceedance Level Values7.2.8 Choosing Event History Options7.2.9 Recording Sound for Events7.2.10 Setting Weather Options7.2.11 Moving the Setup to the Instrument

7.3 Making the Measurement .................................................................................................... 80

7.4 Viewing the Measurement Data ........................................................................................... 817.4.1 Downloading the Measurement File7.4.2 Using the G4 Data View for Environmental Noise Measurements

7.5 Exporting the Data to a Spreadsheet .................................................................................. 86

Features shown in this module appear when the following optional firmwarepackages are purchased and installed. For this reason, your display may differfrom the example. For any step that does not apply to your package, werecommend that you move to the next step.

• 831-OB3 (Octave Frequency Analysis)

• 831-LOG (Automatic Data Logging)

• 831-WTHR (Weather Data)

• 831-ELA (Measurement History)

• 831-SR (Sound Recording)

G4 LD Utility Reference Manual Setting Up the Measurement 69

7.1 Setting Up the Measurement

Before you begin:• Connect your instrument in G4. For more information, see 2.3

"Connecting the Meter to G4" on page 10.

7.1.1 Calibrating the Instrument in G4

We recommend that you calibrate or perform a calibration check justbefore making a sound measurement. Refer to your calibrator andmicrophone/preamplifier product manuals for specific calibrationrequirements.

For best results, use Larson Davis precision acoustic calibrators,microphones, and preamplifiers.

Step 1. In G4, click on your connected meter in the Meters Panel.

Step 2. Click the Live View button, click the menu icon , then select Calibrate from the menu that appears. For instructions using Model 831, see the manual for that meter.

Step 3. Select the appropriate calibrator and settings from the Select Calibrator drop-down and click Calibrate or Do Calibration.

Step 4. Press the power button on the calibrator, then slowly place it over themicrophone to avoid sudden pressure changes to the diaphragm.

After a few seconds, a message appears in G4 indicating the measureddifference with a prompt to save the results.

Step 5. Click Yes to save the calibration, then remove the calibrator from themicrophone.

Step 6. To exit the Calibration tabs, click Close near the bottom of your screen.

Step 7. To examine a meter’s calibration history, click Calibration Histories atthe top of the G4 window.

7.1.2 Performing a Calibration Check in G4

Complete this section if you’re using the Larson Davis 2103 precisionmicrophone/preamplifier combination that supports calibrationchecking. Refer to your preamplifier product manual for specifics.


We recommend that you perform a calibration check after calibrating andjust before making a sound measurement. This establishes the standardcheck level for the preamplifier.


Step 2. Click the Live View button, click the menu icon , then select Calibrate from the menu that appears. For instructions using Model 831, see the manual for that meter.

Step 3. Click the lower left tab twice to view the Cal Check tab.

The Standard Calibration Level (dB)holds either the last saved Cal Checkvalue or the default value (94.00).

Step 4. Click Do Calibration Check. After a few seconds, the meter displays thefollowing confirmation message.

Select Yes to save the Cal Check value asthe Standard Cal Level.

Select No to simply record the level inthe Cal Check History.


Step 6. To examine a meter’s cal check history, click Calibration Histories in theG4 top toolbar.

7.1.3 Setting a Data Storage Preference

Step 1. Complete the applicable sections of 6.2 "Configuring Data StoragePreferences for 831C" on page 59, then continue to section 7.2.

G4 LD Utility Reference Manual Creating a Setup File in G4 71

7.2 Creating a Setup File in G4

In this section, use the G4 Setup Manager to create an environmentalnoise measurement setup file with the following properties:

• A-Frequency weighting with Slow Detector and Z-peakweighting.

• 1/3 Octave Band Analysis range set to Low with Spectral LnMode on.

• Continuous Run Mode with Measurement History enabled andtaken in 1 hour increments with Interval Time Sync enabled.

• Time History enabled and set with 1 second periods and timehistory options marked for LAeq and LZpeak.

• Snapshot sound recordings for events using firmware option831C-SR.

• Weather data taken using the optional SEN03x weather station.

7.2.1 Naming the Setup


Step 1. In G4, click on the name of your connected meter in the Meter Panel (orProject Panel).

Step 2. Click Setup Manager in the top G4 toolbar. This opens the SetupManager window. The left side shows setups on the PC; the right sideshows setups on the meter you select from the blue drop-down menu.

Step 3. From the blue drop-down menu on the left (PC side), selectSoundAdvisor 831C Settings in PC.

Step 4. If you have more than 1 instrument, select the model and serial # fromthe blue instrument drop-down menu on the right (meter side).

Step 5. On the left (PC side), right-click on the Default SLM setup file on theSoundAdvisor 831C Settings in PC box, select Save As, and enter thesetup name “Example”.


FIGURE 7-1 Example Setup Name

Recommended Next Steps:• See 7.2.2 Choosing Measurement Weighting, Detection, and

Integration Method

7.2.2 Choosing Measurement Weighting, Detection, and Integration Method

Before you begin:• Complete 7.2.1 "Naming the Setup" on page 71

Step 1. On the left side (PC side) of the Setup Manager, click once to select the

“Example” setup you created, then click the arrow icon in the lower-right corner to access the General tab.

TAKE NOTE If you return to the Setup Manager tab after tabbing to the left or right, you are prompted to save settings. Click Yes to apply the changes to the setup.

Step 2. On the General tab, enter “EX_DATA” as the Default Data File. This willbe the prefix of each data file created with this Setup.

Step 3. Click the arrow icon in the lower-right corner to access the SLM tab,and select settings as shown in Figure 7-2.

FIGURE 7-2 SLM Page Settings


Recommended Next Steps:• If the Setup is complete, see 7.2.11 Moving the Setup to the

Instrument

• If the Setup is not complete, see 7.2.3 Choosing Octave BandAnalysis Settings

7.2.3 Choosing Octave Band Analysis Settings

Complete this section if you have purchased Octave Band Analysisfirmware (OPT-OB1). For more information, see the instrument manual.

Step 1. On the left side (PC side) of the Setup Manager, click the arrow icon inthe lower-right corner until the OBA tab displays.

Step 2. On the OBA tab, select the settings shown in Figure 7-3.

FIGURE 7-3 OBA Page Settings


Instrument.

• If the Setup is not complete, see 7.2.4 Choosing Ln Values.

7.2.4 Choosing Ln Values

Ln statistical values are commonly used to describe the characteristics ofnon-steady sound such as environmental noise.

The Ln value is the measured sound level in decibels that was exceededn% of the measurement time. For example, a value of L90 = 35 dB meansthat the measured sound level was above 35 dB for 90% of themeasurement period.


Step 1. On the left side (PC side) of the Setup Manager, click the arrow icon inthe lower-right corner until the Ln tab displays.

Step 2. For this example, keep the default values as shown in Figure 7-4.

FIGURE 7-4 Ln Page Values


Instrument.

• If the Setup is not complete, see 7.2.5 Choosing Meter ControlSettings.

7.2.5 Choosing Meter Control Settings

Because we are choosing Continuous mode for this example, when youstart the measurement, the instrument continuously createsmeasurement records until you stop it.

Step 1. On the left side (PC side) of the Setup Manager, click the arrow icon inthe lower-right corner until the Control tab appears.

Step 2. On the Control tab, choose Continuous from the Run Mode drop-downmenu.

Step 3. Select the checkbox in-line with Enable Measurement History, andenter “01:00” as the Time (hh:mm) for the duration of eachmeasurement record.

Step 4. Select the checkbox in-line with Interval Time Sync.

This sets the instrument to stop and start measurements at a time ofday equal to a multiple of the duration you enter in the Time field, or 1hour in this example). For example, if you press the Run button at


00:08:14 (hh:mm:ss format), the next measurement records begin at09:00, 10:00, 11:00, etc.

FIGURE 7-5 Meter Control Page


Instrument

• If the Setup is not complete, see 7.2.6 Choosing Time HistorySettings.

7.2.6 Choosing Time History Settings

Complete this section if you have purchased Time History firmware (831C-ELA). For more information, see the instrument manual.

Step 1. On the left side (PC side) of the Setup Manager, click the arrow icon inthe lower-right corner until the Time Hist tab displays

Step 2. On the Time History tab, select the checkbox in-line with Enable TimeHistory, and select “1 s” from the Period drop-down menu.

Step 3. Select the checkbox in-line with the following Time History Options:

• Leq: A

• Lpeak: Z


FIGURE 7-6 Time History Page Settings


Instrument

• If the Setup is not complete, see 7.2.8 Choosing Event HistoryOptions

7.2.7 Choosing Exceedance Level Values

Step 1. On the left side (PC side) of the Setup Manager, click the arrow icon inthe lower-right corner until the Excd. Trigger tab displays.

Step 2. On the Exceedance Trigger tab, enter the levels shown in Figure 7-7.

FIGURE 7-7 Exceedance Trigger Page Settings


Instrument


• If the Setup is not complete, see 7.2.8 Choosing Event HistoryOptions.

7.2.8 Choosing Event History Options

Step 1. On the left side (PC side) of the Setup Manager, click the arrow icon inthe lower-right corner until the Event Hist tab displays.

Step 2. On the Event History tab, select the checkbox in-line with Event History.

Step 3. Keep the default values for Min/Cont Duration, and Trigger Method.

Step 4. Select the Event Time History option, and select On from the SpectralMode drop-down menu.

FIGURE 7-8 Event History Page Settings

TAKE NOTE For the Model 831 (firmware 4.5 +), email/text alert notifications for sound events can only be managed by creating a user account in G4. For more information, see 6.1.3 "Editing an 831C Account in G4" on page 6-54.


Instrument.

• If the Setup is not complete, see 7.2.9 Recording Sound forEvents.

7.2.9 Recording Sound for Events

Complete this section if you’ve purchased Larson Davis Sound Recordingfirmware option (831C-SR). More information is available in theinstrument manual.


Step 1. On the left side (PC side) of the Setup Manager, click the arrow icon inthe lower-right corner until the Sound tab displays.

Step 2. On the Sound tab, select the checkbox in-line with Save Event Sound,as shown in Figure 7-9, and keep all other default values.

FIGURE 7-9 Settings for Recording Sound Events

LEARN MORE For information about using the compression option on this tab when using the 831C, see the SoundAdvisor 831C Manual, “18.3 Using Triggered Event Sound Recording”.


Instrument.

• If the Setup is not complete, see 7.2.10 Setting WeatherOptions.

7.2.10 Setting Weather Options

You will need the SEN03x weather station to complete this section.

Step 1. Click the Weather tab, and select SEN03x (or Weather-INT) from theWeather drop-down menu.

Step 2. Keep all other default values as shown in Figure 7-10.


FIGURE 7-10 Weather Page Settings

Recommended Next Step:• 7.2.11 Moving the Setup to the Instrument

7.2.11 Moving the Setup to the Instrument

Step 1. On the left side (PC side) of the Setup Manager, click Close and Save thesetup file when prompted.

Step 2. In the Setup Manager file list, select the “Example” setup, then click theright double-arrow button to transfer the setup to the instrument.

FIGURE 7-11 Transfer Setup and Set to Active

Step 3. Enter “EnvExample” as the new file name and click OK. The Setup issaved on the meter.

Step 4. On the meter side (right side) of the Setup Manager, right-click on thename of the setup, and select Set To Active.

G4 LD Utility Reference Manual Making the Measurement 80

TAKE NOTE You can verify that the Example setup is active on the instrument by viewing the instrument screen or Live View.

7.3 Making the Measurement

This example monitors environmental sound levels in one location.

Before you begin:• Secure your SLM in the location you want to monitor with a

tripod and other available environmental protection systems,which result in the most accurate measurement. For moreinformation, see the Model 831 SLM Reference Manual. In G4, goto Help Manuals Model 831.

• Connect your meter in G4, and verify that it has an activeconnection in the G4 Meters Panel.

Step 1. When you’re ready to start the measurement, click on the name of yourconnected meter in the Meters Panel.

Step 2. If G4 security/HTTPS is enabled, you are prompted to log in with yourUsername and Password. The meter tab opens in the main tabsdisplay.

Step 3. On the meter tab, click the Live view, then click the Run/Stop iconin the top-right corner to begin the measurement, as shown in Figure 7-12.

FIGURE 7-12 Live View Run/Stop Icon in G4

Step 4. After an appropriate amount of time, click the Run/Stop icon again to end the measurement. The measurement stores according to your Auto-Store preference. If Auto-Store is set to None, press the Run/Stop icon again to store the measurement manually.

Step 5. Perform an acoustic calibration and calibration check to verify your measurement. For more information, see 7.1.1 "Calibrating the Instrument in G4" on page 69, and 7.1.2 "Performing a Calibration Check in G4" on page 69.

Recommended Next Step:• 7.4 Viewing the Measurement Data

G4 LD Utility Reference Manual Viewing the Measurement Data 81

7.4 Viewing the Measurement Data

The Live View in G4, or the meter itself, displays many tabs and pages ofmeasurement results data. Refer to the Model 831 manual for informationon viewing data on the meter display.

In this section:• 7.4.1 "Downloading the Measurement File" on page 81

• 7.4.2 "Using the G4 Data View for Environmental NoiseMeasurements" on page 82

7.4.1 Downloading the Measurement File

Before you begin:• Connect your meter to your PC, and click Discover Meters in the

toolbar. Your meter should display as active in the Meters Panel.

Step 1. In G4, click on your connected meter in the Meters Panel. The meter tab

opens on the Files view.

TAKE NOTE If you want to export data to a spreadsheet, select the checkbox in-line with Export to .xlsx in the Files page toolbar before downloading the data file from the meter.

Step 2. Double-click the measurement data file in the list, and the file beginsdownloading. G4 automatically saves the file in LDBIN format and opensit in a new file tab.

TAKE NOTE If you also chose to export file to a spreadsheet, the XLSX file saves directly below the LDBIN file in the file directory.

Recommended Next Step:

• 7.4.2 Using the G4 Data View for Environmental NoiseMeasurements


7.4.2 Using the G4 Data View for Environmental Noise Measurements

G4 Data view displays the resulting measurement data in tabs orsheets. Each sheet provides sound data according to the settings youspecified in the setup.

Before you begin:• Download and open a data file in G4. For more information, see

7.4.1 "Downloading the Measurement File" on page 81.

Step 1. The data file opens on the Data view, which displays the followingtabs or sheets:

Data Summary Sheet

The Data Summary sheet provides summarized results, such as LAeq,LZpeak, LAmax, and Ln Percentiles, as well as exceedances, overloads,and weather information. The data on this sheet corresponds with thedata on the Overall tab on the 831C. It represents all the data takensince the last measurement reset as shown in Figure 7-13.

FIGURE 7-13 Data Summary Sheet

TRY THIS Use the right-click menu in G4 worksheets to cut, copy, paste, etc.

LEARN MORE For more information on the meaning of specific data metrics and values, in G4 go to Help Manuals SoundAdvisor 831C Appendix C Glossary.


FIGURE 7-14 Ln Statistics on Summary Sheet

FIGURE 7-15 Weather Data on Summary Sheet

This data is available when you choose Weather settings in the Setup and install a Weather sensor such as the SEN03X.

OBA Sheet

As specified in the Setup, the OBA sheet shows data according to 1/3Octave bandwidth with Z-weighted, Ln percentile data in spectralmode.

FIGURE 7-16 OBA Sheet Example

Bandwidth

Percentile


Session Log Sheet

The Session Log sheet displays entries for events if the sound levelexceeds the trigger level for the specified minimum duration of time.

This sheet also includes snapshot sound recordings of events. Doubleclick Sound Record # to listen to the recording (when sound recordingfirmware is installed).

FIGURE 7-17 Session Log Sound Snapshot

Measurement History Sheet

The Measurement History sheet shows records for the measurement withmetrics and values you select in the Setup. For this example, Record 1shows the values specified on the SLM tab in the measurement setup.

FIGURE 7-18 Measurement History Sheet

TAKE NOTE In this example, we used Continuous Meter Control to create automatic measurement records. You can also create multiple measurement history records manually by pushing Run/Pause +9 Stop/Store 7 multiple times.


Event History Sheet

When the trigger level you specify in the Setup is exceeded for a theMinimum Duration, the Event History sheet shows enhanced data forthese events.

FIGURE 7-19 Event History Sheet Example

Event Time History Sheet

The event in this example with the highest Z-peak is Event 6 as shownin Figure 7-20. The Event Time History sheet shows the values for themetrics we chose in the measurement Setup.

FIGURE 7-20 Event Time History Sheet

1 second periods with 10 second pre-trigger

Spectral data columnsGray cells indicate under range values

G4 LD Utility Reference Manual Exporting the Data to a Spreadsheet 86

Time History Sheet

The Time History sheet includes the data for Leq and Lpeak, asspecified in the measurement setup.

FIGURE 7-21 Time History Sheet

7.5 Exporting the Data to a Spreadsheet

Step 1. To export data files from G4 to XLSX format, select the file tab, then clickFile Export to Spreadsheet.

Step 2. Save the XLSX file to your PC when prompted.LEARN MORE You can also accomplish this task on the meter tab Files view

by selecting Export to .xlsx before downloading the data file from the meter.


Module 8 Room Acoustics Measurement Example

This example demonstrates features of RT-60 sound measurements using the Model831 SLM in G4 LD Utility. For best results, complete the following sections in theorder they’re presented.

TAKE NOTE This example assumes that you have the 831-RT firmware option installed on the Model 831.


8.1.1 Creating a Setup File in G48.1.2 Moving the Setup to the Instrument

8.2 Making the Measurement .................................................................................................... 91

8.3 Viewing Measurement Data ................................................................................................. 928.3.1 Downloading the Measurement File8.3.2 Using G4 LD Utility File View for Room Acoustics Measurements

8.4 Exporting RT60 Data to a Spreadsheet ............................................................................... 95


Before you begin:

• Calibrate your instrument. For more information, see the Model 831 SLMReference Manual, Chapter 8 “Calibration”. In G4, go to Help ManualsModel 831

• Verify that your instrument is connected in G4. For more information, see2.3 "Connecting the Meter to G4" on page 10.

8.1.1 Creating a Setup File in G4

This example uses the G4 Setup Manager to create an RT-60 measurement on thePC with the following settings:

• Low Filter at 250.0 Hz and High Filter at 4.00 kHz, with an Exit Time of 10seconds (default)

• RT-60 Bandwidth of 1/1, Impulse Method, 4.00kHz Trigger Source, 80.0dB Trigger Level, and 3 Decays (default is 1)

• Sample Period of 5 ms, Max Run Time of 4 seconds with Normal OBARange and all time series saved (default)


TAKE NOTE For more information on all the setup options, see Model 831 SLM Reference Manual, Chapter 15 “RT-60”.

Step 1. In G4, select Setup Manager from the main menu. This opens the SetupManager in the main tab display.

FIGURE 8-1 Setup Manager LayoutThe Setup Manager has a file-transfer-style setup.

1. PC Side: Names of setupfiles saved on the PC.

2. Meter Side: Names ofsetup files saved on yourmeter.

Step 2. Select Model 831 Settings in PC from the drop-down menu on the PCside, and select the name of your connected 831 SLM from the drop-down menu on the Meter side (see Figure 8-1).

Step 3. On the PC side, right-click the RT60impl RA setup file, select Save As.Enter “RTExample,” and click OK.

FIGURE 8-2 Renaming a Setup File

TAKE NOTE If you move to a different window, you are prompted to Save settings? Click Yes to apply the changes to the setup.

1. 2.


Step 4. In the Setup Manager (PC side), click to highlight the RTExample setupfile you just created.

Step 5. Click the bottom-right tab until the General tab displays.

Step 6. In the Measurement Description field, enter “RT60 Impulse”. You canleave the other settings as shown in Figure 8-3.

FIGURE 8-3 Measurement Setup, General Tab

Step 7. Navigate to the RT-60 tab by using the right arrow tab .

Step 8. Enter “3” in the Decays field, and keep all other default settings asshown in Figure 8-4.

FIGURE 8-4 Measurement Setup, RT-60 Tab

Step 9. Navigate to the RT60 Adv tab by using the right arrow . Make anydesired changes, or choose to keep the default settings.


The Build Time field is disabled in this example,since it applies only to the Interrupted Methodsetting.

Step 10. When the setup file is configured, select Close, and save the file whenprompted.

8.1.2 Moving the Setup to the Instrument

Step 1. In the Setup Manager on the Meter side (right side), select your meterfrom the blue instrument drop-down menu.

Step 2. On the PC side (left side), select RTExample in the setup list, then click

the right double-arrow button to transfer the setup to theinstrument.

Step 3. On the Meter side (right side), right-click the RTExample setup andchoose Set To Active.

FIGURE 8-5 Set to Active

You can verify that the setup is active on the instrument by viewing theinstrument screen or Live View.TAKE NOTE G4 also enables you to transfer Setup files to multiple connected

meters simultaneously. For more information, see 3.1.2 "Pushing a Measurement Setup to Multiple Meters for SLM" on page 25.


8.2 Making the Measurement

Before you begin:• Before making a measurement, secure your Model 831 or

microphone in the location you want to monitor sound levels.For best results, we recommend using tripods and standardimpulse sources for proper RT-60 impulse measurements. Formore information, search for “Sound Sources” atwww.larsondavis.com.

This example demonstrates making an RT-60 measurement using onlyone instrument. Typical RT-60 measurements should includemeasurement data from multiple instruments positioned in the sameroom.

Step 1. Press Run/Pause 9 on the meter. Or if you are still connected to G4,click the same button on the Live View in G4.

In the lower-left corner of Live View, G4 provides prompt icons for eachstep in the measurement process.

Step 2. The first prompt shows an exit icon that displays for the duration youspecified for the Exit Time setting. Step away from the microphonelocation.

FIGURE 8-6 Exit Prompt

LEARN MORE For complete information on performing an RT-60 measurement with the Model 831, see Model 831 SLM Reference Manual, Chapter 15 “RT-60”.

G4 Live View also displays the prompts shown in Table 8.1 that guideyou through the next steps in the process of making an Impulse RT-60measurement.

G4 LD Utility Reference Manual Viewing Measurement Data 92

Step 3. Activate your impulse source each time the Ready icon appears in theLive View. If the Trig icon appears after each source activation, yourmeasurement will be ready to stop after 3 activations.

If the Trig icon does not appear after an activation, continue activatingyour impulse source until the Trig icon appears.

Step 4. Press or click Stop/Store 7 twice to end the measurement and store it.

Step 5. Perform an acoustic calibration (and calibration check if indicated) toverify your measurement.

8.3 Viewing Measurement Data

To examine measurement data, download the file and use the G4 FileViewer as shown in this section. Additionally, the Live View in G4—or onthe meter itself—displays many pages of data results on the RT-60 tab.Refer to the Model 831 manual for information on viewing andunderstanding these pages.

Table 8.1 Impulse RT-60 Prompts

Prompt Description

Exit prompt: leave the room. This icon displays on the Live View for the time you

specify for Exit Time in the Setup.

The background noise level is measured for 5 seconds and is then used for determining signal-to-noise ratio on successive decays.

The background noise measurement is complete and the pre-trigger buffer is

filling.

The pre-trigger buffer is full and the source within the room is activated. If using the

meter’s internal noise source, it starts automatically.

The measurement is triggered.



Before you begin:

• Establish an active meter connection in G4. If needed, clickDiscover Meters in the top toolbar.

Step 1. In G4, click on your connected meter in the Meters Panel. The meter tabopens on the Files page.

LEARN MORE If you want to export data to a spreadsheet, select the checkbox in-line with Export to .xlsx in the Files view toolbar before downloading the data file from the meter.

Step 2. Double-click the measurement data file in the list, and the file beginsdownloading. G4 automatically saves the file in LDBIN format and opensit in a new file tab.

Recommended Next Step:• 8.3.2

8.3.2 Using G4 LD Utility File View for Room Acoustics Measurements

G4 Data view displays the resulting measurement data in tabs orsheets. Each sheet provides sound data according to the settings youspecified in the Setup.

Step 1. The data file opens on the Data view, which displays the followingtabs or sheets:

Data Summary Sheet

The Summary sheet provides overall results from all 3 decays listed byfrequency and includes quality indicator values for the measurement.

Quality indicator values for each frequency are shaded green (withinlimits), yellow (marginally within limits), or pink (outside the limits) asshown in Figure 8-7.


FIGURE 8-7 RT-60 Summary Data Sheet

LEARN MORE For more information on specific data metrics, quality indicators, and values, refer to the RT-60 chapter of the Model 831 Manual.

RT60 Detail Sheet

The RT-60 Detail sheet provides metrics and quality indicators for eachdecay, listed by frequency as shown in Figure 8-8.

FIGURE 8-8 RT-60 Detail Sheet

Ensemble RT60 Time Series

The Ensemble RT60 Time Series sheet provides a spectra of soundlevels for each sample period before and after the impulse soundactivation. Excluded decays are not represented on this sheet.

RT60 Detail Time Series

The RT60 Detail Time Series sheet displays individual sound levels forall sample periods for all decays as shown in Figure 8-9.

G4 LD Utility Reference Manual Exporting RT60 Data to a Spreadsheet 95

FIGURE 8-9 Time Series Data Sheets1. Ensemble Time Series sheetincludes summarized sound levels

2. Detail Time Series sheet includessound levels for individual decays

3. Sample periods specified in Setup

8.4 Exporting RT60 Data to a Spreadsheet

Before you begin:• Open a data file in G4.

Step 1. In G4, select the file tab, and click File Export to Spreadsheet.

Step 2. In the File Explorer window that opens, choose a location to save the file,enter a file name, and click Save.

LEARN MORE You can also accomplish this task on the meter tab Files view by selecting Export to .xlsx before downloading the data file from the meter.

1.

2. 3.


Module 9 FFT & Tonality ExampleThis module provides an example procedure for performing an FFT and Tonalitymeasurement in G4 LD Utility and working with the resulting data. Complete thesections in the order they’re presented to complete the example.TAKE NOTE FFT and Tonality functionality is only available on instruments with DSP Rev

0.5 or higher with the 831-FFT firmware option installed. This example in this section uses the Model 831 SLM.


9.1.1 Perform a Calibration Check in G49.1.2 Setting Data Storage Preferences9.1.3 Creating a Setup File in G4

9.2 Making the Measurement .................................................................................................. 101

9.3 Viewing Measurement Data ............................................................................................... 1029.3.1 Downloading the Measurement File9.3.2 Using G4 Data View for FFT and Tonality Measurements9.3.3 Using G4 Graph View for FFT and Tonality Measurements

9.4 Exporting the Data to a Spreadsheet ................................................................................ 108


Before you begin:

• Calibrate your instrument. For more information, see the Model 831 SLMReference Manual, Chapter 8 “Calibration”.

• Verify that your instrument is connected in G4. For more information, see2.3 "Connecting the Meter to G4" on page 10.

9.1.1 Perform a Calibration Check in G4

Complete this section if you’re using the Larson Davis 2103 precision microphone/preamplifier combination that supports calibration checking. Refer to yourpreamplifier product manual for specifics.

We recommend that you perform a calibration check after calibrating and justbefore making a sound measurement. This establishes the standard check level forthe preamplifier.



Step 2. Click the Live View button, click the menu icon , then select Calibrate from the menu that appears.

Step 3. Click the lower left tab twice to view the Cal Check tab. The Standard Calibration Level (dB) holds either the last saved Cal Checkvalue or the default value (94.00).

Step 4. Click Do Calibration Check. After a few seconds, the meter displays aconfirmation message.

Select Yes to save the Cal Check value as the Standard Cal Level.

Select No to simply record the level in the Cal Check History.


Step 6. To examine a meter’s cal check history, click Calibration Histories in theG4 top toolbar.

9.1.2 Setting Data Storage Preferences

Step 1. Complete the applicable sections of 6.2 "Configuring Data StoragePreferences for 831C" on page 59, then continue to section 9.1.3.

9.1.3 Creating a Setup File in G4

Complete the following sections in the order they’re presented tocreate the setup file, move it to the meter, and make the active setup.

In this section:• Naming the Setup

• Choosing General Settings

• Choosing Settings on the FFT Tab

• Choosing Settings On the Tonality Tab

• Moving the Setup to the Instrument as the Active Setup


Naming the Setup


Step 1. In G4, click on the name of your connected meter in the Meter Panel (orProject Panel).

Step 2. Click Setup Manager in the top G4 toolbar. This opens the SetupManager window. The left side shows setups on the PC; the right sideshows setups on the meter.

Step 3. From the blue drop-down menu on the left (PC side), select Model 831Settings in PC.

Step 4. If you have more than 1 instrument, select the model and serial # fromthe blue instrument drop-down menu on the right (meter side).

FIGURE 9-1 Setup Manager Meter Side

Step 5. On the left (PC side), right-click on the Default SLM setup file on theModel 831 Settings in PC box, select Save As, and enter the setupname “FFTExample”.

FIGURE 9-2 FFT Example Setup Name

Choosing General Settings

Before you begin:• Complete "Naming the Setup" on page 98


Step 1. On the left side (PC side) of the Setup Manager, click once to select the

“FFTExample” setup you created, then click the arrow icon in thelower-right corner to access the General tab.

TAKE NOTE If you return to the Setup Manager tab after tabbing to the left or right, you are prompted to save settings. Click Yes to apply the changes to the setup.

Step 2. On the General tab, enter “FFT and Tonality” in the MeasurementDescription field. LEARN MORE For more information on these settings, go to Help Manuals

Model 831 FFT and Tonality.

Choosing Settings on the FFT Tab

Step 1. On the left side (PC side) of the Setup Manager, click the arrow icon inthe lower-right corner to access the FFT tab.

Step 2. On the FFT tab, select the settings shown in Figure 9-3.

FIGURE 9-3 FFT Tab Settings

LEARN MORE For more information on these settings, go to Help Manuals Model 831 FFT and Tonality.

Choosing Meter Control Settings

Step 1. On the left side (PC side) of the Setup Manager, click the arrow icon inthe lower-right corner to access the Control tab.

Step 2. On the Control tab, select the settings shown in Figure 9-4.


FIGURE 9-4 Control Tab Settings

Choosing Settings On the Tonality Tab

Step 1. On the left side (PC side) of the Setup Manager, click the arrow icon inthe lower-right corner to access the Control tab.

Step 2. On the Control tab, select the settings shown in Figure 9-5.

FIGURE 9-5 Tonality Tab Settings

LEARN MORE For more information on these settings, go to Help Manuals Model 831 FFT and Tonality.

Moving the Setup to the Instrument as the Active Setup

Step 1. On the left side (PC side) of the Setup Manager, click Close and Save thesetup file when prompted.

Step 1. On the Setup Manager file list tab (left or PC side of your screen), selectthe “FFTExample” setup, and then click the right double-arrow to


transfer the setup to the instrument. The “FFTExample” setup appearsin the file list on the right side (meter side) of the window.

Step 2. On the right side (meter side), right click the “FFTExample” setup in thefile list, and select Set To Active from the pop-up menu that appears.

As shown in Figure 9-6, you can verify that the “FFTExample” setup isactive on the instrument by viewing the instrument screen or Live View.

FIGURE 9-6 Active FFT Example Setup

9.2 Making the MeasurementThis example demonstrates monitoring sound levels in one location.

Before you begin:• Secure your meter in the measurement location by using a

tripod and any necessary environmental protection systems.For more information, see the Model 831 Manual.

Step 1. To begin a measurement using G4, click on your connected meter in theMeters Panel.

To begin a measurement in the presence of the meter, press Start/Stop9 on the meter or in the meter Live View in G4.

Step 2. If network security (HTTPS) is enabled, you are prompted to log in withyour Username and Password. This opens the meter tab on the right.

Step 3. In G4, navigate to the meter’s Live View page to monitor themeasurement.


Step 4. After an appropriate amount of time, press or click Stop/Store 7 twiceto end the measurement and store it.

Step 5. Perform an acoustic calibration and calibration check as described inthe instrument manual to verify your measurement.

9.3 Viewing Measurement DataIn this section, download the measurement file to G4 and examine thedata using G4 viewing and export tools.

The Live View in G4 (or the meter display) shows many tabs and pages ofmeasurement results data. Refer to the Model 831 manual for even moreinformation on viewing data on the meter display.

In this section:• 9.3.1 Downloading the Measurement File

• 9.3.2 Using G4 Data View for FFT and Tonality Measurements

• 9.3.3 Using G4 Graph View for FFT and Tonality Measurements


Before you begin:

• Connect your meter to your PC, and click Discover Meters in thetoolbar. Your meter should display as active in the Meters Panel.

Step 1. In G4, click on your connected meter in the Meters Panel. The meter tabopens on the Files page.

TAKE NOTE If you want to export data to a spreadsheet, select the checkbox in-line with Export to .xlsx in the Files page toolbar before downloading the data file from the meter.

Step 2. Double-click the measurement data file in the list, and the file beginsdownloading. G4 automatically saves the file in .ldbin format and opensit in a new file tab.

TAKE NOTE If you also chose to export file to a spreadsheet, the .xlsx file appears directly below the .ldbin file in the file directory.


9.3.2 Using G4 Data View for FFT and Tonality Measurements

G4 Data view displays the resulting measurement data in tabs orsheets. Each sheet described here provides sound data according tothe settings you specified in the Setup.

Summary Sheet Data

The Summary Sheet provides summarized results of the FFTmeasurement, including FFT overloads, if any.

FIGURE 9-7 FFT Summary Sheet

Additional SheetsG4 also includes sheets for FFT Overall data, Measurement History(Avg), Measurement History (Max), Tonality, and Session Logs. Figure 9-8 shows sections of these sheets.


FIGURE 9-8 Additional FFT Data Sheets

Export to Spreadsheets

To export data files from G4 to Microsoft Excel, make the file the activetab and then click File Export to Spreadsheet. G4 prompts you tosave the .xlsx file in the default location or the location you specified onthe File Options tab (Tools Options).

FIGURE 9-9 Export To Spreadsheets

9.3.3 Using G4 Graph View for FFT and Tonality Measurements

In G4, click the Graph view of the open file to display measurementdata in graph format. Refer to the FFT and Tonality chapter of theModel 831 Manual for details on specific metrics.

2.

1.

3.

4.

5.

1. Overall Data Sheet

2. Measurement History (Avg.) sheet

3. Measurement History (Max.) sheet

4. Tonality sheet

5. Session Log Sheet not shown here


FIGURE 9-10 G4 Graph View for FFT Files

1. Select metrics todisplay or not displayon graph.

2. Legend correlatesmetrics to colors ingraph and displays val-ues dynamically as cur-sor moves along graph.

3. Select measure-ments to display ongraph.

To display tonality data, select the checkbox in-line with Show Tonality in the upper left corner of thedisplay. See Figure 9-11 FFT Graph With Tonality Data.

FIGURE 9-11 FFT Graph With Tonality Data

1. Tonality Settings

2. Tone Indicator

3. Zoom in to viewtones, see Figure 9-12

4. ISO 1996-2 Data

3. 1.

Click on graph and drag to zoom in on tones.

2.

3.2.1. 4.


FIGURE 9-12 Zoom in to View Tones

1. Critical Bandwidth Line

2. Noise Regression Line

ISO 1996-2 Annex C Tonality Data Box

Hover over a tone in the graph to view the following values beneath thelegend:

FIGURE 9-13 ISO 1996-2 Standard, Annex C Data

1. Tone Level

2. Noise Level

3. Tone Audibility Level

4. Adjustment

5. Quality Indicator

6. Tone Frequency

7. Critical Bandwidth of selected tone

LEARN MORE For more information on Lpt, Lpn, Lta, Kt, and Bcrit, see the ISO 1996-2 Tonality Standard, Annex C.

Quality indicators display when deficiencies, in relation to the ISO1996-2 Standard, are detected in measurements. Hover the mousepointer over the data box to see the Quality Indicators Legend as shownin Figure 9-14.

1.

2.

5.

1.2.3.

7.4.

6.


FIGURE 9-14 Quality Indicators Legend

Table 9.1 describes each quality indicator, the corresponding deficiencyfor each indicator, and the remedy for each deficiency.

Table 9.1 Quality Deficiency and Remedy

Quality Indicator

IconDeficiency Remedy

The measurement has not been averaged for at least one minute (see ISO 1996-2 section

C.2.2)

Run the measurement for at least one minute.

The weighting is set to C (see ISO 1996-2 section C.2.2).

Change the setting to A weighting to perform a standard measurement.

The weighting is set to Z (see ISO 1996-2 section C.2.2).

Change the setting to A weighting to perform a standard measurement.

The window type is not Hanning (see ISO 1996-2 Note 1).

Change the setting to Hanning window to perform a standard measurement.

The tone bandwidth is not less than 10% of the critical bandwidth (see ISO 1996-2

section C.2.2).

Increase the resolution of the measurement by increasing the

number of Lines, or by decreasing the Frequency Span in the FFT settings.

The appearance of the icon even after the Hanning window is selected

indicates that the bands of noise do not qualify as tones as specified in the

ISO 1996-2 standard.

The effective bandwidth is not less than 5% of the critical bandwidth.

Change the window type.

The sound measurement does not contain sufficient regression data and therefore

cannot display a standard linear regression line.

Increase the Regression Range on the Tonality tab.

G4 LD Utility Reference Manual Exporting the Data to a Spreadsheet 108

9.4 Exporting the Data to a Spreadsheet

Step 1. To export data files from G4 to XLSX format, select the file tab, then clickFile Export to Spreadsheet.

Step 2. Save the XLSX file to your PC when prompted.LEARN MORE You can also accomplish this task on the meter tab Files view

by selecting Export to .xlsx before downloading the data file from the meter.

G4 LD Utility Reference Manual Creating a Measurement Configuration File in G4 109

Module 10 Dosimeter ExampleG4 LD Utility (G4) provides enhanced data-viewing, and remote operation—amongother features—for the Spartan 730 Dosimeter. The example in this module can alsobe completed by using the LD Atlas app.

Process Overview:

10.1 Creating a Measurement Configuration File in G4 ............................................................ 10910.1.1 Naming the Setup File and Setting Dosimeter Configurations10.1.2 Enabling Firmware Options, Exceedance Triggers, and Timers in the Setup10.1.3 Saving the Setup File in G4

10.2 Importing a Configuration Setup File ................................................................................ 112

10.3 Pushing a Setup File to Multiple Dosimeters .................................................................... 113

10.4 Monitoring the Measurement in G4 ................................................................................... 114

10.5 Viewing Measurement Results in G4 ................................................................................. 11510.5.1 Downloading Measurement Results10.5.2 Viewing Measurement Data10.5.3 Viewing Measurement Graphs

10.6 Creating a Report ............................................................................................................... 121

10.7 Creating Modified Results .................................................................................................. 12210.7.1 Using Time History Graph Tools10.7.2 Creating and Viewing Modified Results

10.1 Creating a Measurement Configuration File in G4

In this example, we’ll expose the dosimeter wearer to very loud music in closeproximity to the sound source speaker. For demonstration only, this example showshow to edit the default settings to produce a custom configuration that provides amore stringent exposure standard.

LEARN MORE For a full list of Spartan 730 default configurations, see the Spartan 730 Dosimeter Reference Manual, Section 3.

Before you begin:• Verify the dosimeter is connected to your PC. For more information, see

Connecting the Meter to G4 on page 10.• The Setup options you choose here determine what information is available in

the resulting data file. To create a setup with the end result in mind, werecommend that you review sections 10.5 "Viewing Measurement Results inG4" on page 115.


10.1.1 Naming the Setup File and Setting Dosimeter Configurations

This section shows how to configure a Spartan Dosimeter in G4 with allavailable firmware options installed. Options on your meter may differ. If afeature isn’t available to you, move to the next step.

Step 1. In G4, select your connected dosimeter in the Meters panel. This opensthe dosimeter tab in the main window.

Step 2. Click Settings to configure a measurement.

TAKE NOTE As you scroll down, this page allows you to select measurement configurations and properties for Dosimeters 1–4. For this example, we will utilize the default configurations for dosimeters 2–4, and customize the default configuration for Dosimeter 1.

Step 3. In the Dosimeter 1 section, skip down to the Threshold field, and enter85.

TAKE NOTE Notice the Configuration and Title fields automatically adjust to your custom edit.

Step 4. Click inside the Title field and enter “730Demo”.

Step 5. Scroll down to the Dosimeter 1 Alarm 1 section, click the slider in-linewith Enable Alarm, and LED Indication.

• LED Indication: When enabled, the LED alarm lights on theSpartan 730 provide exposure feedback to the wearer based onthe Source metric, and the Action and Limit Levels you set. In analarm state, the lights display a range of yellow (action) to red(limit).

Step 6. For this example, leave the default setting for Source; make the ActionLevel “70” and the Limit Level “85”.

• Action Level (dB or percentage): When LED Indication isenabled, the dosimeter LED lights power on when exposurereaches the level you enter here.

• Limit Level (dB or percentage): The Limit Level value displaysas a line in the measurement results on the Time History graphas labeled in Figure 10-9. Also, when LED Indication is enabled,the dosimeter LED lights are red when exposure reaches thelevel you enter here.

Step 7. Dosimeter 1 Alarm 2 is enabled by default, click the Enable Alarm sliderto disable it.

Step 8. Leave the default settings for Dosimeter 2–4.


10.1.2 Enabling Firmware Options, Exceedance Triggers, and Timers in the Setup

Step 1. Scroll down to the Meter section, and, if desired, enter a custom DeviceName. The value you enter here is visible only in the resultingmeasurement data.

Step 2. If you purchased Time History and Octave Band Analysis firmware, verifythat the Time History, and Octave Band (OBA) sliders are enabled.

LEARN MORE For more information on these options, in G4 go to Help Manuals Spartan 7303.1.1 Enabling Firmware Options fora Measurement.

Step 3. To prevent other G4 users from editing this Setup file, enter a Pass Code.TAKE NOTE Pass Code does not prevent users from editing the Setup on the dosimeter.

To lock the meter, go to Tools Lock Meter.

Step 4. For this example, in the Exceedance Triggers section, edit the values asfollows:

• SPL1 (dB) to 68

• SPL2 (dB) to 80

• Peak 1 (dB) to 68



Step 5. If you purchased the 730-SR firmware option, scroll down to EventSound Recording and edit the values as follows:

• Trigger Source: LCS

• Trigger Level: 80

• Minimum Interval (seconds): 15

Step 6. Scroll down to Timers, select Timed Stop from the Timer Mode drop-down, and enter 5 minutes (h:mm:ss format) in the Duration field.

10.1.3 Saving the Setup File in G4

Step 1. When your configuration is complete, choose one of the following waysto save the Setup:

To save the configuration directly to the meter:

a. Click Save in the top right. The file is saved to the meter.

G4 LD Utility Reference Manual Importing a Configuration Setup File 112

To save the configuration for reuse:

a. Click Export in the top right. This opens the Save As window onyour PC.

b. Verify the location you want to save the setup file. (Werecommend saving to “G4 > Setups > spartan”.)

TAKE NOTE Make note of the location of this saved setup file.

c. Enter “730Example” as the File name for this Setup file (.SPS)and click Save.

Recommended Next Step:• “Monitoring the Measurement in G4” on page 114.

10.2 Importing a Configuration Setup File

This section shows how to import a previously saved configuration fileinto G4, instead of creating a new dosimeter file as shown in the previoussection.

Before you begin:• Verify the dosimeter is connected to your PC. Click Discover Meters

to refresh an inactive connection.

Step 1. In G4, select your connected dosimeter in the Meters panel. This opensthe dosimeter tab on the right.

Step 2. Click Settings to open the Settings page.

Step 3. Click Import. This opens the File Explorer window.

Step 4. Select a configuration setup file (.SPS) from your PC, and click Open. TheSettings page displays the saved configuration.

Step 5. Choose one of the following methods to save the Setup file:

G4 LD Utility Reference Manual Pushing a Setup File to Multiple Dosimeters 113

To save directly to the meter:

a. Click Save in the top right. The file is saved to the meter.

FIGURE 10-1 Dosimeter Display Shows the Saved Setup

To save the Setup for reuse:

a. Make any necessary changes to the Setup, then click Export inthe top right. This opens the Save As window.

b. Verify the location you want to save the setup file. (Werecommend saving to “G4 > Setups > spartan”.)

TAKE NOTE Make note of the location of this saved setup file.

c. Enter “730Example” as the File name and click Save.

Recommended Next Steps:• Pushing a Setup File to Multiple Dosimeters on page 113

• Monitoring the Measurement in G4 on page 114

10.3 Pushing a Setup File to Multiple Dosimeters

Once your measurement setup is saved on your PC, complete steps in thissection to “push” it to one or more connected meters.

Before you begin:• Save a settings file to your PC. For more information, see 10.1

"Creating a Measurement Configuration File in G4" on page109, or 10.2 "Importing a Configuration Setup File" on page112.

• Verify that your meter connection is active. Click DiscoverMeters to refresh an inactive connection.

G4 LD Utility Reference Manual Monitoring the Measurement in G4 114

Step 1. From the G4 Meters Panel, click the meter menu icon, and select PushSettings.

Step 2. In the Push Settings to Selected Meters window, select the checkbox in-line with one or more meters, then click Select Settings File.

Step 3. In the File Explorer window that opens, select the setup file (.SPS) andclick Open.

Step 4. Select Push to Meters. Depending on your connection type, this processmay take a few seconds. The G4 status window indicates when theprocess is complete as shown in Figure 10-2.

FIGURE 10-2 G4 Push Settings Status

Recommended Next Steps:• Make a measurement using the new setup file. For help, see

Help Manuals Spartan 730 Manual “Section 4 Making aMeasurement”.

• If you’re using the LD Atlas app (or G4) and the dosimeter iswithin Bluetooth range, see Monitoring the Measurement in G4on page 114.

10.4 Monitoring the Measurement in G4

When the dosimeter is within Bluetooth range, G4 (or the LD Atlas app)allows you to monitor a measurement in progress.

G4 LD Utility Reference Manual Viewing Measurement Results in G4 115

Before you begin:• Establish an active connection to the meter in LD Atlas or G4.

Click Discover Meters to refresh an inactive connection.


Step 2. Select the Live View, as shown in Figure 10-3.

FIGURE 10-3 730 Dosimeter Live View in G41. When in Bluetoothrange, click this icon tostart, stop, or pause themeasurement.

2. Click the Page Tabs toview additional displays.

10.5 Viewing Measurement Results in G4

Following a measurement, Spartan 730 Dosimeter data filesautomatically download to your PC when the meter re-establishes aBluetooth connection with the PC. This is usually when the meter and PCare in the same room.

TAKE NOTE For information on disabling Auto-Download, see A.2.2 "Auto Download Options" on page A-3.

In this section:• 10.5.1 "Downloading Measurement Results" on page 116

• 10.5.2 "Viewing Measurement Data" on page 116

1.

2.


• 10.5.3 "Viewing Measurement Graphs" on page 119

• 10.6 "Creating a Report" on page 121

10.5.1 Downloading Measurement Results

Step 1. Select your connected meter in the meters panel. This opens thedosimeter tab on the Files view.

Step 2. Double-click the measurement file you want to view, then select the file

tab that opens next to the meter tab. The Data view displays bydefault.

TAKE NOTE If auto -download is not enabled, the file downloads when you double-click. Double-click the file again to open the data file on a new tab.

Other options:

• To select all files in the list too download or open, click thecheckbox above the file list.

• To cancel a download in progress, click the cancel downloadicon.

10.5.2 Viewing Measurement Data

When you download and open a data file, G4 displays the dataspreadsheet. The data sheet is organized into the following tabbedsections:

• Summary Tab on page 116

• Settings Data Tab on page 117

• Session Log Tab on page 118

• OBA Tab on page 118

• Time History Tab on page 119

Summary Tab

The Summary tab displays the following items:

• General measurement information such as dosimeter user,measurement location, or other notes.

• Overall results for Dosimeter 1, and virtual Dosimeters 2, 3, and 4.configuration.

• “Any Level” data


• Selected event trigger levels and the count and duration of each

• Any instances of instrument Overload.

• Records of any (optional) modified data you create using the editband graphing tool. See 10.7.2 "Creating and Viewing ModifiedResults" on page 123.

• It also contains the Measurement Summary section. This sectionallows you to enter the following general information or metadata about the measurement and circumstances, which may behistorically important.

• User (1 line)• Location (1 line)• Job Description (1 line)• Note (up to 2 lines. Use ALT+ENTER to enter the second

line.)

FIGURE 10-4 Measurement Notes/General Information

Your entries display at the top of the official report, as part of the reportheading. You can also enter this information in the Search bar on theData view to locate data files. For more information, see 2.6.2 "AddingGeneral Information to Create Search-able Data Files" on page 18.

Settings Data Tab

With the data file open in G4, click the settings tab near the bottom ofyour screen. This opens the record of the settings used for themeasurement.

This tab displays:

• Current System Settings

• Measurement settings saved in the setup file for each vir-tual dosimeter

• Alarm status, Action and Limit Level


• Features and Firmware Options enabled for the mea-surement

• Exceedance Threshold settings

• Detailed Timer or Run Time Settings used to create themeasurement

FIGURE 10-5 Settings Tab Example

Session Log Tab

From the open data file in G4, click the Session Log tab near the bottomof your screen. This opens the record of all meter actions (run, stop,pause, and the action source), and each sound event recorded. (Onlywhen option 730-ESR is installed. For details about this option, seesection 3.3.1 "Accessing Your Dosimeter Sound Recording Files" onpage 31.)

FIGURE 10-6 Session Log Tab Example

OBA Tab

When the Octave Band Analysis option (730-OB1) is purchased andenabled for your Spartan 730, from the open data file in G4, click theOBA tab near the bottom of your screen. This opens a summary ofrecorded metrics for 9 octave frequencies as shown in Figure 10-7.

FIGURE 10-7 OBA Tab Example


Time History Tab

When you select Time History as part of the measurement setup file,the Time History tab displays one entry for each period (1 second or 1minute) you selected in the Time History section of the measurementconfiguration. Each entry contains the following:

• A record of the Time History (TH) metrics you selected

• Periods when the subject was in motion

• Any “bump” data, or records of when the meter wasjolted, dropped, or otherwise bumped

• Periods when an input overload or under range erroroccurred and the meter could not accurately measurenoise exposure

FIGURE 10-8 Time History Example

Time History records taken in regular intervals also enable G4 to graph the subject’s exposure level for the duration of the measurement as shown in section 10.5.3.

10.5.3 Viewing Measurement Graphs

Step 1. In G4, download and open the data file, then choose the Graph view.

Time History records taken in regular intervals allow G4 to graph thesubject’s exposure level for the duration of the measurement. In theSetup file, Time History is often defined with a 1 second period. Withthis setting, exposure levels are recorded in terms of a table of metrics


with a new entry for each second. The graph of these values displays asshown in Figure 10-9.

FIGURE 10-9 Time History Graph ExampleThis example of the Time History graph shows that the subject’s noise exposure remained below the defined Limit Level line (red line) for the duration of the measurement.

When the OBA feature is enabled for your dosimeter, the Graph sectionalso shows the Overall OBA bar graph.

FIGURE 10-10 Overall OBA Graph Example This example graph highlights the octave frequencies at 63 Hz. When you roll over a section of the chart, the specific octave is highlighted and the values panel displays exact levels.

For this example, the max loudness for all noises in the 63 Hz frequency was 76 dB; the minimum loudness was 39.5 dB, and the average loudness was 53.5 dB.

Recommended Next Steps:• If you plan to modify the resulting data, see 10.7.2 "Creating

and Viewing Modified Results" on page 123

• If you’re ready to report the measurement results, see 10.6"Creating a Report" on page 121.

G4 LD Utility Reference Manual Creating a Report 121

10.6 Creating a Report

Step 1. Download and open the data file in G4, then choose the Report view. G4 creates a report PDF with all details required by IEC 61252 Ed. 1.2.

Step 2. If you’ve created modified data using the Edit Band tool, select thedataset you want to report on from the Standard drop-down menu inthe top right as shown in Figure 10-11.

FIGURE 10-11 Select Dataset Drop-down Menu

Step 3. (Optional) To add Measurement Notes, click Add General. Skip this ifyou entered Measurement Notes on the Data Summary spreadsheet.

Step 4. (Optional) To customize the report with your logo, click Add Logo.This feature is not currently available in the LD Atlas app.

Adding a Custom Logo

a. In the Add Logo window, click Import.

b. Select your logo image from your PC, and click Open. Your logois reduced to 800 x 100 px.

c. If the logo displays appropriately, click Save. To choose adifferent file, click Import.

FIGURE 10-12 Report Example With Custom Logo and Measurement Notes

Step 5. Select a format to share the report:

• Click View PDF to open the report in your local PDF viewer.

G4 LD Utility Reference Manual Creating Modified Results 122

• Click Email PDF to open the report in your default mail client.

10.7 Creating Modified ResultsG4 enables you to view, modify, and examine your measurementresults.

10.7.1 Using Time History Graph Tools

The views and tools on the Time History graph in G4 are helpful fororganizing and analyzing measurement results.

Step 1. Select your connected dosimeter in the meters panel. This opens thedosimeter tab on the Files view.

Step 2. In the file list, double-click the data file you want to graph. This opensthe file in a new tab showing the Data view.

Step 3. Click the Graph view to display the Time History graph as shown inFigure 10-13.

FIGURE 10-13 Features of the Time History Graph

1. The Graphing Tools are demonstrated in 10.7.2 Creating and ViewingModified Results.

2. Graph Menu: Available options as shown in Figure 10-14.

2.

3.

4.

1.

A.


3. Legend: Click on a label in the legend to show or hide that metric in thegraph.

4. Graph Navigator: Select the portion of the measurement you want tofocus on in the graph window.

FIGURE 10-14 Time History Graph Menu

FIGURE 10-15 Time History Values Panel

The Values Panel is disabled by default. When enabled, it displays the sound level wherever you place the mouse pointer on the graph. To enable it, click the Graph Menu icon in the top right and select Show Values Panel; to disable it, select Hide Values Panel.

Click on a metric label in the chart key to display it in the Values Panel; click again to hide it.

10.7.2 Creating and Viewing Modified Results

The G4 Edit Band and Crop Measurement features allow you to excludeone or more segments of a measurement.

In this section:• Using Automatic Exclusion for Bump Events in G4 on page 124

• Creating an Edit Band Exclusion in G4 on page 125

• Using Create New Measurement on page 126

Table 10.1

Print Graph Print the graph from your computer.

Show/Hide Values Panel See Figure 10-15 for details.

Set Limit Level Sets the level of the line shown at point A in Figure 10-13 above. The line is often used to indicate a desired exposure level.

Set y-Axis Extremes Set the range of decibel values which display on the y-axis of the graph.

Show/Hide Legend

Create New Measurement See Using Create New Measurement

Reset Zoom Resets the graph zoom to 0%.


Using Automatic Exclusion for Bump Events in G4

When you download Spartan dosimeter data files, G4 automaticallycreates an exclusion band for all bump events. This feature allows you toexclude unusual data resulting from an interruption, or a “bump” eventwhen the dosimeter is accidentally bumped or dropped. You can alsodisable this automatic feature.

LEARN MORE For more information on disabling Automatic Exclusion for Bump Events in G4, see A.2.4 "Spartan Dosimeter Options" on page A-4.

G4 calculates a bump event by taking the average of the 10 most recentLCpeak values and comparing it to the previous average. If this value issignificantly higher, the Time History Data tab indicates the bumpevent in orange as shown in the top section of Figure 10-16. The TimeHistory Graph (Time History Graph Tab) also shows the exclusion bandin orange as shown in the bottom section of Figure 10-16.

FIGURE 10-16 Bump Event in Time History Data and Time History Graph


Creating an Edit Band Exclusion in G4

APPLIES TO Spartan dosimeter and SoundAdvisor™ 831C SLM.

This example shows noise exposure data that was interrupted by thesubject’s heavy coat brushing the mic. The following steps demonstratehow to use G4’s edit band tool to exclude data that is not representative ofthe actual noise exposure or measured sound.

TAKE NOTE When modifying your data using edit bands, no changes are made to the original data. You can view both the original results and the modified results in separate sections on the file tab Data view Summary tab.

Before you begin:• Create a measurement with Time History enabled.

• Open the data file in G4.

Step 1. Select the tab of the open data file in G4, and click the Graph view.

Step 2. Select the Edit Band tool, then click and drag to highlight thesection (or sections) to exclude. This opens the Edit Band window.

Step 3. Adjust the edit band selection using the arrow buttons, if needed, thenclick Exclude Data.

Adjusting the Edit Band Selection

• In either the Begin or End section, click the single arrow toexpand the selection by 1 sample. Click the double arrow toexpand the selection by 10 samples.)

FIGURE 10-17 Edit Band WindowTAKE NOTE When you use the edit band tool the modified results typically have a margin of error of < <1.5% with continuously changing levels over 8 hours.

Step 4. To exclude additional areas, repeat steps 2–3.


Step 5. To view the modified data, click the Data view and scroll down tothe Modified Results section as shown in Figure 10-18.

FIGURE 10-18 Modified Results Section of the Data ViewG4 creates a copy of the data, applies your edits, and calculates exposure statistics, which display in the Modified Results section below the original measurement data.

Modified results using TWA values stored in TimeHistory are always calculated using the Slowdetector, regardless of the setup selection.

Step 6. When you’re finished, simply close the file. G4 prompts you to save it.The file saves in your My Documents folder under G4 Data Meters[the meter’s name]. If you created a project, the file saves in MyDocuments G4 Data Projects Meters.

Recommended Next Step:• "Using Create New Measurement" on page 126

• 10.6 "Creating a Report" on page 121

Using Create New Measurement

When you create an edit band, G4 recalculates the measurement statisticsand metrics based on your selection. These modified results display in aseparate section of the Data view, and are used in a variety ofcircumstances, including:

• to examine possible noise exposure scenarios (“what if” scenarios)

• to determine the result of applying a noise reduction factor, suchas earplugs or headphones

Additionally, when you use the Create New Measurement feature, allportions of the measurement outside the selected area (and all exclusionbands within the selected area) are removed from the Modified Resultsdata sheets and the Time History graph.

In this example we will create a new measurement based on the modifiedresults. This application will show the subject’s noise exposure if theywere wearing industrial earplugs with a 20 dB noise reduction rating(NRR).


Before you begin:• Understand how to create an edit band exclusion as shown in

"Creating an Edit Band Exclusion in G4" on page 125.

• Open a data file in G4.

Step 1. Select the tab of the open data file in G4, and click the Graph view toopen the Time History graph.

Step 2. In this example, we want to indicate the expected noise exposure as alimit line on the graph. To do this, click the Graph menu icon, andselect Set Limit Level.

Step 3. In the window that opens, enter “110 dB”, and click OK. The red limitlevel line displays at the 110 dB level on the graph.

Step 4. Create an edit band using the edit band tool, enter “-20” as theOffset, and click Apply Offset. The edited segment is labeled andhighlighted in blue as shown in Figure 10-19.

FIGURE 10-19 Measurement Data With -20 dB Offset Applied

TAKE NOTE When you create an edit band, G4 saves the modified data in the Modified Results section of the Data view.

Step 5. Click the Graph menu icon, and select Create New Measurement.

Step 6. Highlight the portion of the measurement you want to include in thenewly calculated exposure statistics. This opens the Create NewMeasurement window.

Step 7. If needed, use the Begin and End arrows to adjust the selectionboundaries, then click Create.


TAKE NOTE Any Exclusion bands within the selected area are also removed from the recalculation.

Step 8. To view the results, select the Data view, and scroll down to the

Modified Results section. You can also view results from the Report view, and scroll down to the Modified Results section. This viewalso displays the modified Time History graph.

G4 LD Utility Reference Manual G4 LD Utility License for HVM Functionality 129

Module 11 Human Vibration Meter ExampleThis example demonstrates the enhanced data-viewing features G4 LD Utilityprovides for the Larson Davis HVM100 and HVM200 instruments.

In G4, HVM200 users can view reports. To make full use of G4 features, contactLarson Davis to obtain a license for your meter.

Process Overview:11.1 G4 LD Utility License for HVM Functionality ...................................................................... 129

11.1.1 Installing G4 License for PC With Internet Access11.1.2 Installing G4 License for PC With No Internet Access11.1.3 Uninstalling a G4 License

11.2 G4 LD Utility for HVM100 .................................................................................................... 13111.2.1 Setting Up the Measurement for HVM10011.2.2 Downloading HVM100 Files

11.3 G4 LD Utility for HVM200 .................................................................................................... 13311.3.1 Connecting and Setting Up the Measurement11.3.2 Downloading the Measurement File11.3.3 Viewing HVM200 Data Files in G4 LD Utility

11.4 Creating a Report ............................................................................................................... 140

11.1 G4 LD Utility License for HVM FunctionalityOperating an HVM with G4 does not require a license from Larson Davis. Once alicense is purchased, you’ll receive an email containing a license key. This key canbe used to install G4 on up to 5 PCs at a time. The license key can be uninstalledand reused on a different PC.

11.1.1 Installing G4 License for PC With Internet Access

If an Internet connection is available, use this process to install a G4 license foryour HVM instrument.

Before you begin:• Power on and connect your HVM instrument to your PC via USB.

• Launch the latest version of G4 LD Utility. For more information onupdating or installing G4, see Module 2 Getting Started With G4 LDUtility.

Step 1. In G4, click on the name of your connected meter in the Meters Panel (or Projects Panel). A licensing dialog appears.

Step 2. Click Install License.

G4 LD Utility Reference Manual G4 LD Utility License for HVM Functionality 130

Step 3. Copy then paste the key into the top field, and click Install.

FIGURE 11-1 Install G4 LD Utility License Dialog

Step 4. The software accesses the Internet to authenticate the key.

Step 5. When authentication is successfully completed, a second text box confirms your meter is licensed.

11.1.2 Installing G4 License for PC With No Internet Access

If no Internet connection is available, use this process to install alicense for your HVM instrument.

Before you begin:• Power on and connect your HVM instrument to your PC via USB.

• Launch the latest version of G4 LD Utility. For more informationon updating or installing G4, see Module 2 Getting Started WithG4 LD Utility.

Step 1. In G4, click on the name of your connected meter in the Meters Panel (or Projects Panel). A licensing dialog appears.

Step 2. Click Save License. Save the license file to a known location, where you will be able to find it when an Internet connection is available.

Step 3. Send an email, including the license file as an attachment, to Larson Davis Technical Support ([email protected]). Please include your Order # in the email.

Step 4. When you receive an email response with an authenticated license file, save the file to your PC.

Step 5. Repeat Step 1.

Step 6. Click Load License. Locate the authenticated license file you saved, and click Open. G4 updates the license. When the file is successfully loaded, the middle text box shows License Installed.

G4 LD Utility Reference Manual G4 LD Utility for HVM100 131

11.1.3 Uninstalling a G4 License

TAKE NOTE An Internet connection is required to uninstall a license.

Step 1. In G4, navigate to Tools Install Licenses.

Step 2. Click Yes, and choose Uninstall License. This frees 1 of the 5 G4 installations allowed on the same license.

11.2 G4 LD Utility for HVM100G4 enables you to download, open, and view HVM100 files. To connectG4 to the HVM100, follow these steps:

Step 1. Click Connect on G4.

Step 2. On the Connect to Meter dialog box, select HVM100 as the Device and Serial as the Connection Type.

Step 3. Specify the Port and Baud Rate.

Step 4. Click Connect.

FIGURE 11-2 HVM100 Connection

Step 5. Select the Tools 2 tab when configuring the HVM100 for setup.TAKE NOTE While you can set up and make an HVM100 measurement in G4, the HVM200

Control or LD Atlas app do not communicate with HVM100 meters. We recommend that you update to an HVM200 to enjoy all features.


11.2.1 Setting Up the Measurement for HVM100

Refer to the HVM200 Manual for more information on setting up ameasurement for your HVM100 in G4. In G4, go to Help ManualsHVM100.

11.2.2 Downloading HVM100 Files

Before you begin:• Power on and connect your HVM100 to your PC via USB.

Step 1. In G4, click on the name of your connected meter in the Meters Panel. The meter tab opens on the right.

Step 2. Click the white arrow to view the Data Manager.

Step 3. Select a file or files to download from the data files list. To select multiple files, press the Ctrl key while selecting. Use the Shift key while selecting to select a group of consecutive files.

Step 4. Click Download Options as shown in Figure 11-3, and choose from the available options for your selected files.

FIGURE 11-3 Download OptionsThe Automerge HVM100 Records option combines files with contiguous numbering into records. Each record is displayed as a tab when viewing the data files in G4 LD Utility.

Step 5. Click Download.


If you selected the Add General Information checkbox, the GeneralInformation window opens. Specify details in the User, Location, JobDescription, or Notes fields, and click OK, then the files download.

Step 6. If you selected Open on Download in the Download Options box, file tabs open automatically. For merged files, the tab for merged files contains a record for contiguous files only.

LEARN MORE For information on viewing and working with HVM data files in G4, see 11.3.3 "Viewing HVM200 Data Files in G4 LD Utility" on page 135.

FIGURE 11-4 Example HVM100 Graph (top) and Data (bottom) in G4

11.3 G4 LD Utility for HVM200

In this section:• 11.3.1 Connecting and Setting Up the Measurement

• 11.3.2 Downloading the Measurement File

• 11.3.3 Viewing HVM200 Data Files in G4 LD Utility

11.3.1 Connecting and Setting Up the Measurement

For specific instruction on connecting the instrument, and setting upand making a measurement, in G4 go to Help ManualsHVM200Module 2 Getting Started.

TAKE NOTE Instructions for connecting, and setting up and making a measurement in G4 also apply when using the LD Atlas app.



G4 LD Utility provides helpful data management, visualization, andreporting features for HVM200 users. This section reviews all featuresavailable when downloading measurement files from the HVM200.

Before you begin:• Connect your instrument to a PC and in G4 as indicated in 11.3.1

"Connecting and Setting Up the Measurement" on page 133.

Step 1. In G4, click on the name of your connected meter in the Meters Panel (or Projects Panel). This opens the meter tab on the right.

Step 2. Click the white arrow to expand the Data Manager view.

FIGURE 11-5 Expand or Collapse the Data Manager View

Step 3. In the Data Manager file list, select the HVM files you want to download. To select multiple files press the Ctrl key while selecting.

Step 4. Near the bottom of the window, click Download Options to expand the window, select from available options, and click Download.

TAKE NOTE Add General Information and Open Downloaded File(s) options are selected by default as shown in Figure 11-6.

FIGURE 11-6 Selecting Download Options

Step 5. If applicable, add information in the General Information dialog box, then click OK. Files begin to download.


The resulting data files display in the Data Manager view according tothe measurement date, with the most recent measurements at the top.

11.3.3 Viewing HVM200 Data Files in G4 LD Utility

After downloading HVM200 data files, G4 creates a measurement tabfor each file. Select a measurement tab to view the related graph andspreadsheet data.

FIGURE 11-7 Measurement Data Display

1. Click graph tabs to display Time History or OBA graphs.

2. Click measurement tab to display data for each file.

3. Click sheet tabs to see measurement data in tables.

4. Drag bar up or down to expand spreadsheet view or graphical view.

2.1.

3.4.


Viewing the Expanded Graph

Expanding the graphical view provides a fuller display and easieraccess to specific data characteristics.

FIGURE 11-8 Expanded Graph DisplaySelect metrics to be shown or hidden on legend.

Vibration units specified in measurement setup

Time Drag disc sliders left or right to adjust scope of display in graph.

Click on graph and drag to zoom in on sections of measurement.

Click to show full measurement duration in graph.


Viewing the Expanded Spreadsheet

Expanding the spreadsheet view provides more detailed values andmetrics for the measurement.

FIGURE 11-9 Expanded Spreadsheet Display

Additional information on spreadsheets:

• Accelerometer overload values are displayed in red cells. If anoverload occurs, an additional column in the spreadsheetdisplays the axis where the overload occurs.

• Accelerometer under-range values occur when noise floor levelsare at or near the measured values. These values are displayedin gray cells. An additional column in the spreadsheet displaysthe axis where the under-range measurement occurs.

Summary sheet provides General info, Setup info, and Overall Data of measurement.

Click spreadsheet tabs to view Time History or OBA metrics and values for specified time increments.

Green-shaded cells can be edited.


TRY THIS Select the meter tab, then choose Live View menu icon About to view the sensor connection status.

• If both an overload and an under-range measurement occur atthe same interval on the same axis, the value is displayed in ared cell. This usually indicates a sensor error and if it occurs formore than eight seconds, it may be an indication that thesensor is disconnected.

• Calibration check information is displayed on the Summarytab, if previously performed.

Editing Data

TAKE NOTE When making edits to your data, the original data is not modified. Instead, both the original data and the modified data are displayed in separate sections of the spreadsheet. Also, saving the file preserves any edits made in the appearance of the graph, but not in the original data.

In the G4 Measurement Data Display, you can edit data in the graph toview alternatives and produce a modified file that includes your edits.

To modify data in the graph, follow these steps:

Step 1. Press the Shift key, click on graph, and drag mouse to highlight section to be modified.

FIGURE 11-10 Edit Graph

TRY THIS To remove graphical edits, press the SHIFT key, click on the edit band in the graph, and then click the Undo Band button on the Edit Shaded Band dialog box. See Figure 11-11.

Step 2. In the Edit Shaded Band dialog box, select the Adjust option and specify a value to add or subtract from the actual measured value. You can specify a positive or negative value.

Step 3. Click OK.

Edit Band


TAKE NOTE Alternatively, you can specify the duration of the edit band by specifying a Start and End time in the dialog box instead of clicking and dragging on the graph.

FIGURE 11-11 Edit Shaded Band

The graph displays the modified plots within the shaded band.

FIGURE 11-12 Edited Data Graph

The edits also appear in the Summary spreadsheet under the headingof Modified Overall Data. In the Time History spreadsheet, editsappear with a blue background.

FIGURE 11-13 Edited Data in Summary Spreadsheet

Peak lowered by 10 m/s2

Edited peak value


G4 keeps the original values under the heading of Overall Data.

Viewing OBA Data

The OBA graphs show the data with respect to both frequency and timeusing a heat map where the color indicates the amplitude of thevibration.

FIGURE 11-14 OBA Graph

11.4 Creating a Report

Step 1. Download and open the data file in G4, then choose the Report view. G4 creates a report PDF.

Step 2. If you’ve created modified data using the Edit Band tool, select the dataset you want to report on from the Standard drop-down menu in the top right as shown in Figure 11-15.

FIGURE 11-15 Select Dataset Drop-down Menu

Specify Max and Min values for colors on Miscellaneous tab under Options.

Root Mean Square OBA Graph

Peak OBA Graph

Max values

TimeFrequency


Step 3. (Optional) To add Measurement Notes, click Add General. Skip this if you entered Measurement Notes on the Data Summary spreadsheet.

Step 4. (Optional) To customize the report with your logo, click Add Logo.This feature is not currently available in the LD Atlas app.

Adding a Custom Logo

a. In the Add Logo window, click Import.

b. Select your logo image from your PC, and click Open. Your logois reduced to 800 x 100 px.

c. If the logo displays appropriately, click Save. To choose adifferent file, click Import.

FIGURE 11-16 Report Example With Custom Logo and Measurement Notes

Step 5. Select a format to share the report:

• Click View PDF to open the report in your local PDF viewer.

• Click Email PDF to open the report in your default mail client.

G4 LD Utility Reference Manual File Menu Settings A-1

Appendix A G4 Settings ReferenceThis module is a reference for a every setting available in G4. When updating asetting, most require you to close and restart G4 before the new setting applies.

Contents:A.1 File Menu Settings ...............................................................................................................A-1

A.2 Tools Menu Settings ............................................................................................................A-2A.2.1 File OptionsA.2.2 Auto Download OptionsA.2.3 Communication OptionsA.2.4 Spartan Dosimeter OptionsA.2.5 Miscellaneous OptionsA.2.6 AudCal OptionsA.2.7 Command Line Settings OptionsA.2.8 Security OptionsA.2.9 Changing UI LanguageA.2.10 Install Licenses ToolsA.2.11 Import Legacy AUDit Database ToolsA.2.12 Connect to HVM100 Tools

A.3 Help Menu Settings .............................................................................................................A-8A.3.1 AboutA.3.2 Manuals

A.4 Setup Manager Settings ......................................................................................................A-8A.4.1 Settings in PC (Left Side of Screen)A.4.2 Settings On Meter (Right Side of Screen)

A.5 Configuring System Properties in the Setup Manager ......................................................A-9A.5.1 Setting Device PropertiesA.5.2 Setting Time PropertiesA.5.3 Setting NTP PropertiesA.5.4 Setting Power PropertiesA.5.5 Setting Meter Storage PropertiesA.5.6 Setting Locale PropertiesA.5.7 Setting Displays PropertiesA.5.8 Display Firmware Options PropertiesA.5.9 Setting Network PropertiesA.5.10 Connecting the 831C to an Email ServerA.5.11 Setting Cloud Storage PropertiesA.5.12 Setting Other PropertiesA.5.13 Specifying Reference Spectra Properties

A.6 Meters Panel Settings and Options ..................................................................................A-20A.6.1 Meters Panel Menu ItemsA.6.2 Menu Items for Your Selected Meter

A.1 File Menu SettingsIn G4, click the File menu to view the following options:

G4 LD Utility Reference Manual Tools Menu Settings A-2

Open a Data File

Use this option to open any of the following file (or folder) types: LDBIN, LD7,HVM, S, XLSX.

Close All Data Files

Use this option to close all open data files, but leave the Meter Manager, etc.open.

Import Files

From USB Drive or Legacy SLMdl

Instrument Settings & Properties

Import to PC, Export from PC, Extract Property File

Setup Manager

Export to JSON/XML

Save HVM File As

Save Spartan File

Save SLM File

Export to Spreadsheet

Print HVM Reports

Generate SLM Report

Close Active Tab

Exit

A.2 Tools Menu Settings

In this section:

• “File Options” on page A-3

• “Auto Download Options” on page A-3

• “Communication Options” on page A-4

• “Spartan Dosimeter Options” on page A-4

• “Miscellaneous Options” on page A-5


• “AudCal Options” on page A-5

• “Command Line Settings Options” on page A-6

• “Security Options” on page A-7

• “Changing UI Language” on page A-7

• “Install Licenses Tools” on page A-7

• “Import Legacy AUDit Database Tools” on page A-7

• “Connect to HVM100 Tools” on page A-7

• “Specifying Reference Spectra Properties” on page A-19

A.2.1 File OptionsTo access the following settings In G4, go to Tools OptionsFile Options.

Downloaded File Destination

This location is the base path for your data file locations, which may includeadditional Meters or Projects folders. The exact location of your downloadedfiles is determined by how the meter is organized in the Meters or ProjectsPanel at the time files are downloaded.

If the meter is active in the Meters Panel, downloaded data files are located atthe base path + Meters folder. If the meter is active in the Projects Panel,downloaded data files are located at the base path + Projects folder.

Exported File Destination

Always Prompt to Delete Files From Meter

When this checkbox is selected, G4 always displays a confirmation window,which requires you to confirm your choice, before deleting files from themeter.

Restore Defaults

Save

Cancel

A.2.2 Auto Download OptionsAPPLIES TO SLM and Spartan dosimeter

In G4, go to Tools OptionsAuto Download to access the followingoptions.


Automatically Download From All Spartan Dosimeters and SLMs Not Listed Below

Add Individual Case

If you want to exclude one or more meters from auto download, you can usethis feature to create an exception.

Save

Cancel

TAKE NOTE Your instrument may have additional auto-download settings. See the instrument manual for more detail.

A.2.3 Communication OptionsIn G4, go to Tools OptionsCommunication to access the followingoptions.

Update Meter Status every <select an option>

Scan for New Meters every <select an option>

Starting TCP/IP Port

Pick Available TCP/IP Ports for the LocalHost Loopback

Restore Ports

Save

Cancel

A.2.4 Spartan Dosimeter OptionsIn G4, go to Tools OptionsSpartan Dosimeter. Select or deselect thecheckbox in-line with the following features.


Set No Motion Idle Period

When Bumped, Exclude Data From Time History

Enable BLE Communication

Save

Cancel

A.2.5 Miscellaneous OptionsIn G4, go to Tools OptionsMiscellaneous tab to access the followingoptions.

Amplify Session Log Audio Record Playback

(HVM only) OBA Spectrograms Set Scale Automatically

(HVM only) OBA Spectrograms Set Scale Manually

Set Max Value

Set Min Value

Show All User Feedback Dialog Boxes (Clear “Don’t Show in the Future Messages)

Reset G4 Window to Default Size on Startup

Select G4 Theme- Dark

Select G4 Theme-Light

TAKE NOTE When you apply this light theme, the Live View for HVM200, SLM Model 831C, and 831 also appear light.

Save

Cancel

A.2.6 AudCal OptionsIn G4, go to Tools OptionsAudCal Options to access the followingoptions.

Enable AudCal in G4

Select this option to activate the Open AudCal menu item on the File menu.


Automatically Open AudCal Tab

Select this option when G4 is used exclusively for AudCal.

Automatically Sync AudCal Database When Connecting to Meter

Notify of Audiometers Due for Calibrations Within [select] days

After the database is synced, audiometers due for calibration display whenAudCal is opened.

FIGURE A-1

Select AudCal DB Path

Leave this field blank to save the database in the default location.

Import Legacy AUDit Database

TAKE NOTE This option is also available from the Tools menu.

Sync With Backup

This option creates a new backup AudCal database.

A.2.7 Command Line Settings OptionsIn G4, go to Tools OptionsCommand Line Settings tab to access thefollowing options.

Use these options to export audio records using a command line, or to exportLDBIN files to another format (XML, JSON).

Edit the Default File Name

Browse and Select LDBIN Files to Export

Browse and Select Destination for Exported Files

Restore Defaults

Save

Cancel


A.2.8 Security OptionsIn G4, go to Tools OptionsSecurity Options tab to access the followingoptions.

Use Secure (https) Communication by Default

Enabling this setting requires G4 to communicate with all connected devicesusing HTTPS and Port 443.

To select a communication protocol HTTPS (secure) or HTTP (non-secure/standard) for the meter, an Admin user should choose a security option on theAccount page as shown in 6.1.2 "Creating a New 831C Account in G4" onpage 6-53.

Save

Cancel

No other Tools Options Tabs are available at this time.

A.2.9 Changing UI Language

G4 is available in French, Italian, German, Spanish, Russian,Portuguese, English, or in the language currently configured on yourPC.

To change the language, navigate to Tools Language, select alanguage, and restart G4 to complete the change.

A.2.10 Install Licenses ToolsIn G4, go to ToolsInstall Licenses.

A.2.11 Import Legacy AUDit Database ToolsIn G4, go to Tools Import Legacy AUDit Databases to make olderdatabases accessible to G4.

A.2.12 Connect to HVM100 ToolsThe HVM100 is no longer a supported device. We recommend that youupgrade to the HVM200. If you still require access for the HVM100 in G4, go toToolsConnect to HVM100.

G4 LD Utility Reference Manual Help Menu Settings A-8

A.3 Help Menu SettingsIn G4, go to Help to view the following settings.

A.3.1 AboutDisplays the software version, release date, and a list of currently installedlicenses.

A.3.2 ManualsAccess manuals, links to online product support, and product-specific releasehistory.

A.4 Setup Manager SettingsIn G4, go to Setup Manager to access the following settings.

A.4.1 Settings in PC (Left Side of Screen)FIGURE A-2

1. Measurement Setup-Settings in PC

In the top-left drop-down menu, select an instrument type to access and editmeasurement setups and properties stored on your PC for the following LDinstruments:

Model 831 Settings in PC

SoundAdvisor™ Model 831C Settings in PC

SoundExpert® LxT Settings in PC

SoundTrack LxT® Settings in PC

HVM200 Settings in PC

HVM100 Settings in PC

1.

2.

G4 LD Utility Reference Manual Configuring System Properties in the Setup Manager A-9

2. Measurement Setup Menu in PC

See From the menu icon on the left (PC side), access the followingmeasurement setup tabs: Setup Manager, General, SLM, OBA, Ln, Control,Time History, Exceedance Triggers, Event History.

A.4.2 Settings On Meter (Right Side of Screen)FIGURE A-3

1. Measurement Setup-Settings in Meter

When connected to one or more instruments, select an instrument from thetop-right drop-down menu to access and edit information stored on thatinstrument.

2. Measurement Setup Menu in Meter

From the menu icon on the right (meter side), access the followingmeasurement setup tabs: Setup Manager, General, SLM, OBA, Ln, Control,Time History, Exceedance Triggers, Event History.

A.5 Configuring System Properties in the Setup ManagerAPPLIES TO SLM only

To set system properties for a single instrument, complete the followingprocess.

Before you begin:• Establish an active meter connection in G4

Step 1 Click on the name of your connected instrument in the Meters Panel. Thisopens the meter tab on the right.

1.

2.


Step 2 Click Setup Manager in the top toolbar.

Step 3 From the blue meter selection drop-down on the right, select the name ofyour connected meter as shown in Figure A-4.

FIGURE A-4 Meter Selection drop-down menu, Right-side

Step 4 Click the system properties button located in the center of thewindow.

FIGURE A-5 Setup Manager Views

1. PC side

2. Meter side

Step 5 On the Meter side (right side), click the menu icon , then choose theproperty page you want to edit. You can also click the left or right

arrows to step through each system property page sequentially.

Step 6 Refer to the applicable section below to complete the process.

• A.5.1 Setting Device Properties

• A.5.2 Setting Time Properties

• A.5.3 Setting NTP Properties

1. 2.


• A.5.4 Setting Power Properties

• A.5.5 Setting Meter Storage Properties

• A.5.6 Setting Locale Properties

• A.5.7 Setting Displays Properties

• A.5.8 Display Firmware Options Properties

• A.5.9 Setting Network Properties

• A.5.10 Connecting the 831C to an Email Server

• A.5.11 Setting Cloud Storage Properties

• A.5.12 Setting Other Properties

• A.5.13 Specifying Reference Spectra Properties

A.5.1 Setting Device PropertiesInformation entered here displays in alert notification emails. Edit the textfield, then click Close (near the bottom of the screen) to save your changes.

FIGURE A-6 Device Properties/ Instrument Identification

A.5.2 Setting Time PropertiesUse this page to set the time zone and to sync the system date and time withthe meter. Choose an option from the related drop-down menu then clickClose (near the bottom of the screen) to save your changes. Some settingsrequire you to reboot the meter.FIGURE A-7 Time Properties Page


A.5.3 Setting NTP PropertiesNTP (Network Time Protocol) is a clock synchronization Internet protocolintended to synchronize all participating computers to within a fewmilliseconds of Coordinated Universal Time (UTC).

Before designating NTP servers, set the correct Time Zone on your meter asshown in A.5.2 Setting Time Properties.

For details and server addresses, see the NIST Physical Laboratory TimeFrequency Services website (https://www.nist.gov/pml/time-and-frequency-division/services/internet-time-service-its).

Enter the appropriate server addresses, then click Close (near the bottom ofthe screen) to save your changes. Some settings require you to reboot themeter.

FIGURE A-8 NTP Properties Page

A.5.4 Setting Power PropertiesChoose an option from the related drop-down menu then click Close (nearthe bottom of the screen) to save your changes. Some settings require you toreboot the meter.

https://www.nist.gov/pml/time-and-frequency-division/services/internet-time-service-its




FIGURE A-9 Power Properties PageSettings on this page help you prioritize howdisplay features use battery power, anddetermine when the battery charges. Settingthe Internal Battery type and the ExternalShutoff Voltage are essential safety settingsfor which there is no shortcut.

Details about when to apply each setting are available in the manual for your specific meter.

Choose an option from the related drop-down menu then click Close (near the bottom of the screen) to save your changes. Some settings require you to reboot the meter.

A.5.5 Setting Meter Storage Properties

Choose an option from the related drop-down menu, as shown here.Some settings require you to reboot the meter.

FIGURE A-10 Available Meter Storage Properties

Step 1 From the Auto-Store drop-down menu, choose one of the followingvalues:

• None

After a measurement, the system properties do not save or prompt youto save the measurement data. Choose this setting if you plan to use anauto store option in the setup file instead.

• Prompt

After a measurement ends, the meter system properties displays adialog where you can choose to store the measurement or cancel.

• Store

After a measurement ends, the meter system properties automaticallystore the data file.


Step 2 From the Data Storage drop-down menu, choose one of the followingoptions:

• Internal

When the amount of internal memory reaches 10 MB available, the831C stops automatically. If the remaining unsaved data is less than800 kB, press Stop/Store 7 to save it. Before you begin anothermeasurement, download all internal data to an external drive or PC byusing the Data File Manager or G4 LD Utility.

• USB

With this option, data files saved manually (and by the meter’s auto-store preference) save to the inserted USB drive. If there’s no USB driveavailable, the USB not available icon displays in the top status bar, anddata files save to the 831C internal memory.

• USB Backup

With this option, data files save to both the 831C internal memory andthe inserted USB drive as a backup copy. If the internal memorybecomes full, data files save to the USB drive.

For each option, a meter reset is required. Click OK to confirm a reset.

Step 3 Click Close to save your changes.

A.5.6 Setting Locale PropertiesChoose an option from the related drop-down menu, select the applicablesetting, then click Close (near the bottom of the screen) to save your changes.Some settings require you to reboot the meter.

FIGURE A-11 Selecting a Language


A.5.7 Setting Displays PropertiesChoose an option from the related drop-down menu, select the checkbox in-line with the page you want to enable, then click Close (near the bottom ofthe screen) to save your changes. Some settings require you to reboot themeter.

FIGURE A-12 Customizing Displays

A.5.8 Display Firmware Options PropertiesSelect the checkbox in-line with the option you want the meter to display,then click Close (near the bottom of the screen) to save your changes. Somesettings require you to reboot the meter. Options that are not selected arehidden from the meter display.

FIGURE A-13 Which Firmware Options to Display

A.5.9 Setting Network Properties

Step 1 Click Set Static IP.


FIGURE A-14 System PropertiesNetwork tab

Step 2 Enter your IP, Subnet, and Gateway, or DNS addresses. Coordinate with your ITprofessional if you need more information.If you want the meter to return to using a unique (dynamically-assigned) IPaddress instead click the Disable button.

Step 3 Reboot the meter for these settings to take effect.

A.5.10 Connecting the 831C to an Email ServerConfigure these settings and press Send Test Email to receive email alertnotifications.

FIGURE A-15 Settings on the Email Properties PagePress Clear Queue to clear all unsent emailalert notifications from the meter queue.

A.5.11 Setting Cloud Storage Properties

Step 1 On the Cloud Storage page, if desired, select the checkbox in-line withAuto Push to Cloud. Enable this setting if you use any form of auto-store.


Using Dropbox for Cloud StorageFIGURE A-16 Dropbox Settings on the Cloud Storage Page

a. Enter or select values for the following items:

• Service: Select Dropbox from the drop-down menu.

• Path: Enter the storage location on the cloud storageserver. In addition to the location you enter in the Pathfield, G4 creates a folder named according to the meter’smodel and serial number (Ex: [Your path here]/[Meter-ModelSN]). This is where your cloud storage files areuploaded. Please note that when using Dropbox, filesare stored in the following location: “Apps/G4DataFiles/[Your path here]/[Meter ModelSN]”

• Transfer Type:

If you choose Move, files will not be stored to the meter’s internalmemory; only to the cloud storage location. If you choose Copy, files will be stored both on the meter and to thecloud storage location.

b. Click the Authorize button and log in to your account usingthe Authenticate window that appears. G4 attempts toconnect to verify the service is available.

c. Complete the verification puzzle.

d. Choose Allow when Dropbox asks you to approve access tothe Apps > G4DataFiles folder as shown in Figure A-1.Dropbox sends you a confirmation email.

FIGURE A-1 Dropbox Folder Access Approval

Using SFTP for Cloud Storage

a. Enter or select values for the following items:

• Service Select SFTP from the drop-down menu.

• Path Enter the storage location on the cloud storageserver. In addition to the location you enter here, G4 cre-ates a folder named according to the meter’s model and


serial number (Ex: [Your path here]/[MeterModelSN]). Thisis the final location.

• Host:Port Include a port number here only if your sys-tem does not use standard port 22.

• Username

• Password

• Transfer Type

If you choose Move, files will not be stored to the meter’s internalmemory; only to the cloud storage location. If you choose Copy, files will be stored both on the meter and to thecloud storage location.

b. Click the Authorize button and log in to your account usingthe Authenticate window that appears. G4 attempts toconnect to verify the service is available.

Step 2 Click Confirm on the authentication success message to continue in G4.

A.5.12 Setting Other PropertiesSelect the applicable properties and values, then click Close (near the bottomof the screen) to save your changes. Some settings require you to reboot themeter.

FIGURE A-1 Settings on the Other Properties Page

• Enable Schedule is only whenyou purchase and install firmwareoption 831C-SCH. This feature isbest operated using the meter’sSchedule/Accounts tab.

•For more information on Logic In/Out, go to Help ManualsSoundAdvisor 831C 9.12Utilizing the Logic In or LogicOut Feature.

•Sierra Wireless Low Power isdiscussed in the NMS system manual.

• For more information on the heater option, go to HelpManuals SoundAdvisor 831C 9.13 Choosing PreampHeater Options.


A.5.13 Specifying Reference Spectra PropertiesTAKE NOTE This feature is supported for Model 831C, 831, and LxT only.

When you apply octave band data, you have the option to choose a negativeor positive A, or C weighting, or you can define up to 4 unique referencespectra as shown in the following process.To include reference spectra insetups and measurements, follow these steps.

Step 1 Click the Setup Manager tab, and then click the System Properties icon

.

Step 2 On the right side of your screen (meter side), click the menu icon , andselect Ref Spectra from the drop-down menu.

Step 1 On the Reference Spectra tab, enter the desired values.

Step 3 Use any of the following methods to define reference spectra values.

FIGURE A-2 Setting Reference Spectra Values

1.Select a group from this drop-down menu,and the saved values for each frequency dis-play below it.

2.To edit the name of the Reference Spectragroup, press Name, enter a unique name, andpress ENTER.

3.This space displays the 12 octaves that canbe defined for 1/1 Octave, and 36 octaves thatcan be defined for 1/3 Octave. Click on a fieldand enter the desired value for each frequency.

Step 4 When finished editing, press Close and confirm it to save your changes.TRY THIS If desired, you can view these reference values on the following meter displays:

• Live view. For details, see the SoundAdvisor 831C Manual 4.1.4About the Normalized Octave Band Page (Live Page 4).

• Overall view. For details, see the SoundAdvisor 831C Manual 4.2.5About the Normalized Octave Band Page (Overall Page).

• Overall OBA page. For details, see the SoundAdvisor 831C Manual4.2.4 About the Octave Band Analyzer Page (Overall Page).

1.

2.

3.

G4 LD Utility Reference Manual Meters Panel Settings and Options A-20

Step 5 After making a measurement, click Live View in G4 to observe the spectradata on the Live Normalized Octave Band page, or the Overall OBA page.

LEARN MORE For more information about using data on these pages, see Module 4 of the SoundAdvisor 831C Manual.

A.6 Meters Panel Settings and OptionsThe Meters PanelMenu button is in-line with the Meters Panel heading.From here, access the following G4 menu items:

A.6.1 Meters Panel Menu Items

Add Meter

To locate this menu item in G4, click the button with 3 dots. Add Meter allowsyou to add a TCP/IP connected meter, such as an 831 INT-ET using a secure orunsecured connection.

UnHide/Forget Hidden Meters

To locate this menu item in G4, click the button with 3 dots. Use this setting toopen the Hidden Meters list. Click Unhide to make a meter discoverable in theMeters Panel. Click Forget to remove a meter from known meters.

A.6.2 Menu Items for Your Selected MeterThe menu for a specific meter, displays in-line with the name of your meter inthe Meters Panel. Select this to access the following menu items for theselected meter only.

FIGURE A-3 Menu for the Selected Meter

G4 LD Utility Reference Manual Meters Panel Settings and Options A-21

Rename MeterTo locate this menu item in G4: on the Meters Panel in-line with your selectedmeter, click the button with 3 dots to access the following menu items for theselected meter only.

Click here and enter a nickname for this meter. The nickname is usedthroughout G4 only.

Hide MeterTo locate this menu item in G4: on the Meters Panel in-line with your selectedmeter, click the button with 3 dots to access the following menu items for theselected meter only.

Select this option to temporarily hide an inactive meter from the MetersPanel. Click this menu item again and select Unhide to display it once again.

Forget MeterTo locate this menu item in G4: on the Meters Panel in-line with your selectedmeter, click the icon with 3 dots, then select Forget Meter from the menu thatappears.

Select this option to remove a meter that you won’t be using from the Metersor Projects Panel. To reverse this action, simply connect the meter to G4again.

Modify ConnectionTo locate this menu item in G4: on the Meters Panel in-line with your selectedmeter, click the icon with 3 dots, then select Modify Connection from themenu that appears.

Select this option to connect your meter to G4 by using an INT-ET, or to set astatic IP address for your meter. For more information, in G4 go to Help Manuals SoundAdvisor Model 831C Module 13.3 Setting a Static IPAddress.

Upgrade FirmwareTo locate this menu item in G4: on the Meters Panel in-line with your selectedmeter, click the icon with 3 dots, then select Upgrade Firmware from themenu that appears.

LEARN MORE For help with this process, see 4.2 Upgrading Meter Firmware.

Upload OptionsTo locate this menu item in G4: on the Meters Panel in-line with your selectedmeter, click the button with 3 dots, then select Upload Options from themenu that appears.

When you purchase and receive an Options file from Larson Davis, use thismenu item to enable that option in G4.

LEARN MORE For help with the process, see 4.3 Upgrading Firmware Options.

G4 LD Utility Reference Manual

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