SE324

Introduction

Main Menu

Real Time Data Recording

Data Logger

To play recording sound

Graph

Frequently Asked Question

Introduction

SE324 is a Sound Level Meter application to load the stored data from the memory of meter or collect the real time data from meter when it is connected to a computer. It can play sound file

System Requirement:

Microsoft Windows / 7/ 8/10 (compatible with 32 and 64bit system)

Minimum Hardware Requirement:

A CDROM driver to run SE324 installation disc

At least 50 MB free space available on hard disk to install SE324

Main Menu

File |

Open Open a file from your computer.

Save Save the active window (when the caption bar is highlighted) data to a file.

Print Print the data of the active window (graph or list).

Printer Setup Select printer and set configurations.

Exit Terminates SE324 application.

Real Time |

Run Start collecting real time data.

Stop Stop collecting real time data.

Data Logger |

Load Data Load data from Sound Level Meter.

Erase Memory Erase the memory on the Sound Level Meter. All the stored data will be erased.

View |

Control Panel Enable Control Panel window. You can also control meter by the buttons in this Control Panel.

RealTime Graph Enable RealTime Graph display to graph the present data.

LEQ | Open the LEQ function window.

| Output tabular data into graphic view.

Real Time Data Recording

1. Recording real time data in waveform:

1.1. Power on the Sound Level Meter and connect it to your computer via a micro USB cable.

1.2. Start SE324 application.

1.3. If the connection is successful, the Control Panel will display the same value as the Sound Level Meter. If fail to establish the connection, it will display "No Connection" on the Control Panel.

1.4. Select sampling rate from RealTime Graph window

Note:

If your computer speed is slow, select sampling rate above 2.0 seconds.

If you intend to sample a large amount data (more than 5000), at least 64 MB ram is recommended to keep computer performance.

1.5. Click to start recording real time data. There will be a waveform on the RealTime Graph window.

1.6. Click to stop recording.

2. Save the recorded real time data to a file:

2.1. Click the RealTime Graph window you want to save and the graph window will become active.

2.2. Click to save data to a file.

2.3. There will be a save dialog window for you to choose the file name and format to save.

There are three file formats you can choose from: (1) binary file (*.ghf), (2) text file (*.txt), (3) CSV file(*.csv).

(1) The *.ghf file occupies much fewer disk space to save the data than the other two file formats, but it can only be opened in SE324.

(2) Text file (*.txt) can be opened in SE324 and any other word processor applications, such as

Microsoft Word, Notepad, etc.

(3) CSV format file (*.csv) can be opened in SE324 as well as Microsoft Excel or other spreadsheet applications.

Note:

If decimal separator is comma in your country, this file format will be disabled, because .CSV file also use comma as data separator. For example, 78,6 dB will become two separate records of 78dB and 6 dB.

Data Logger

1. Read the user manual of your Sound Level Meter for the instructions of Data Logger settings.

2. Retrieve recorded data from Sound Level Meter:

2.1. Power on the Sound Level Meter.

2.2. Connect the Sound Level Meter to your computer via a Micro USB cable.

2.3. Launch SE324 application.

2.4. Click to load the data.

2.5. There will be a progress indicator to show the loading progress. If error occurs during the progress, click the button again.

2.6. After the data was loaded completely, the left side window will list all the data sets and their detailed information, such as start date, time, recording rate, etc. Click on any data set to see the graphic view on the right side window.

3. Save recorded data into a file.

Refer to “Real Time Data Recording,” section 2.2.

To play recording sound:

First take the SD card out and connect to the card reader on PC.

Read out the measuring data from the meter to PC using Datalogger program. If the recording wave is available, its file name will be shown at the last column on the data sets information table. The sound file is arranged in less than 30minutes package. If the recording period is longer that 30minutes, several files will be created.

Click on the open wav button and the user should point the destination to the SD card directory and choose the correct file. The user only have to point out the first wave file and the rest files will be collected automatically.

press “open wav”

After the wave file is acquired, the program will ask whether the user want the collect all files into one project directory for future use.

To start the playback, you can click and hold on the green line, then move to where you want to start to play , after that, click on the play button by the open wav button. Green line will indicate the relationship of the data and sound currently been played.

Graph

1. Specify time window:

1.1. There are two vertical lines (CURSOR A and B) in the graph window.

1.2. You can drag the green sliders to move CURSOR A and B in order to specify your time window.

1.3. The time and sound value will display on the topright of each CURSOR A and B.

2. Statistic 1

2.1. Statistic 1 indicate the start time, sampling rate, data number, average, maximum, and minimum of the entire graph.

2.2. Click to show or hide Statistic 1.

3. Statistic 2

3.1. Statistic 2 indicate the maximum, minimum, and average between CURSOR A and B. The data will be updated automatically when CURSOR A or B is changed.

3.2. Click to show or hide Statistic 2.

4. Graph Tools

4.1. Normal cursor.

4.2. Mark a cross sign on the graph.

4.3. Insert annotation on the graph.

4.4. Delete annotation and cross sign.

4.5. Open Graph Option dialog to customize your graph settings. You can also double click in the graph to open Graph Option dialog.

4.6. Copy the statistic to clipboard.

4.7. Zoom In You can assign a rectangle area on the graph to zoom in for more detailed view.

4.7.1. Press and hold the left mouse button, then drag the cursor to select the new extents.

4.7.2. Release the mouse button.

4.8. Resume to default zoom.

Sound Recording

4.9 CAL leq – calculate LEQ

4.10 open wav – select wave file to play

Frequently Asked Question

1. How can I save the graph to a file which can be used in Microsoft Excel?

Answer: Refer to “Real Time Data Recording,” section 2.3.

2. How to uninstall SE324?

Answer: Uninstall SE324 by launching the Add/Remove Programs applet out of the Microsoft Windows Control

Panel. The SE324 folder and files will be removed completely from your computer.

3. Why loading data fail?

Answer: The error is usually caused when meter is connected to a computer while the meter is still recording data. The Data Logger function must be stopped before connecting to a computer. This error is sometimes caused by slow respond from computer system.

4. How to zoom the graph?

Refer to “Graph,” section 4.7.

5. How to print graph with statistic?

Answer: The SE324 cannot print graph with statistic; however, you can separately copy graph and statistic to an editor (e.g., Microsoft Word) to print.

5.1. Click the button from the tool bar of graph window to open Graph Option dialog.

5.2. Click the Export button from the bottom.

5.3. In the Export destination panel, select the Clipboard.

5.4. Click the Export button from the bottom right of the Export dialog, then the image has been copied to clipboard.

5.5. Paste this to the editor you are running.

5.6. Click the button to copy the statistic to clipboard, then paste it to the editor.

5.7. Print graph with statistic in the editor.