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Center C324 Instruction Manual

Sound measuring recording system
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324
SOUND MEASURING
RECORDING SYSTEM
SE-324

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Summary of Contents for Center C324

  • Page 1 SOUND MEASURING RECORDING SYSTEM SE-324...

  • Page 3: Table Of Contents

    CONTENTS Title Page 1. SAFETY INFORMATION………..………..………………..1 2. GENERAL DESCRIPTION ……………………..……...….1 3. FEATURE ………………………………………………..1 4. SPECIFICATIONS ..…………………..…………………..2 5. NAME AND FUNCTIONS ..………….……………....3 Display screen………………………………………………. 4 6. DATA LOGGER & INTERVAL SETUP……………….….. 7 6.1 Turn On or Off Recording Function..…...…………..7 6.2 Clearing Stored Data …………………….…………….

  • Page 4: Safety Information

    Sound Level Meter 1. SAFETY INFORMATION Read the following safety information carefully before attempting to operate or service the meter. Use the meter only as specified in this manual; otherwise, the protection provided by the meter may be impaired. Environment conditions ...

  • Page 5: Specifications

    Sound Level Meter 4. SPECIFICATIONS Standard applied: IEC 61672-1 Class 2, ANSI S1.4 Type2. Frequency range: 20Hz ~ 8KHz Measuring level range: 30 ~ 130dB Frequency weighting: A / C Microphone: 1/2 inch electret condenser microphone Display: Liquid Crystal Display Digital display: 4 digits Resolution: 0.1dB Display Update: 0.5 sec.

  • Page 6: Name And Functions

    Sound Level Meter Dimensions: 270(L)×63(W)×29(H)mm; 10.6(L)×2.5(W)×1.1(H)inch Weight: 305g ( including battery ) Accessories: 1.5V battery X 4 pcs, carrying case, instruction manual, micro SDHC card，USB cable, windscreen, 3.5 plug, software. Option: Microphone Extension Cables (5m or 10m length). 5. NAME AND FUNCTIONS...

  • Page 7: Display Screen

    Sound Level Meter Display Screen: SYMBOL FUNCTION Battery capacity indicator Auto power off indicator Maximum/Minimum indicator Time weighting indicator Level range indicator Bar graph Time Sound Record ON indicator Frequency weighting indicator Level reading Date Over-range signal indicator microSD card is inserted microSD card is not inserted microSD card is full Memory full...

  • Page 8: Power Button

    Sound Level Meter ○ 1 Windscreen: When making outdoor measurements in windy weather or when measuring air conditioning equipment or similar, wind noise at the microphone can cause measurement errors. Such effects can be reduced by using the windscreen. ○ Display screen.

  • Page 9: Rec Button

    Sound Level Meter symbol indicator and the minimum value on the display. Pressing button again will cause the maximum and minimum indicators to blink together. Which means the meter is under maximum and minimum recording mode. The value displays on the screen is the present value.

  • Page 10: Data Logger & Interval Setup

    Sound Level Meter microSD card slot ○ Note: Turn off the meter before inserting or removing SD card. Format MicroSDHC card on a PC before using, only accept FAT32 file format. Tripod mounting thread: ○ For long-term measurements, the unit can be mounted on a camera tripod. Proceed carefully, to avoid dropping the unit.

  • Page 11: Clearing Stored Data

    Sound Level Meter (2) Press ) button to select whether to activate the sound recording function. (3) Press button again to start data logging. The sound level values are stored in a built-in memory. Press button again to stop recording. (4) Audio files (*.wav) are stored in the microSDHC card and must be downloaded via computer.

  • Page 12: Setting The Date And Time

    Sound Level Meter 7. SETTING THE DATE AND TIME The unit incorporates a clock so that the data logger function can also record the data and time along with the measurement value in the memory. (1) Turn off the unit. (2) Enter SETUP mode by pressing and holding button and then press...

  • Page 13: Calibration Procedures

    Sound Level Meter 8. CALIBRATION PROCEDURES (1) Press and hold button and then power on the meter, LCD display “CAL 94db” symbol. (2) Insert the microphone housing carefully into the insertion hole of the calibrator. (3) Press ▲( ) or ▼( ) button to increase or decrease number.

  • Page 14: Operating Precautions

    Sound Level Meter (2) Battery capacity indicator: When operating the unit on batteries, periodically check this indicator to determine the remaining battery capacity. (3) External power supply: When the 5Vdc Mobile power is used, insert the plugs of the Mobile power into the micro USB connector.

  • Page 15: Setup Se-324

    Sound Level Meter microphone at the suspected noise source, the sound pressure level will be displayed. (3) When MAX MIN (maximum, minimum hold) mode is chosen. The instrument captures and holds the maximum and minimum noise level for a long period using any of the time weightings.
  • Page 16 Sound Level Meter to file. Print- Print the graph of the active window. Printer Setup- Select printer. File | Exit: Terminates SE324 program. Real Time Data | Run- Start collecting real time data Stop- Stop collecting real time data. DataLogger | Load Data- By opening the DataLogger Window, the user can load recorded data of meter to PC in this window.
  • Page 17 Sound Level Meter Tool Bar - Display or hide Statistic1. - Display or hide Statistic2. - Normal cursor. - When selected, the mouse cursor will become a cross sign when moving to the graph, click on the graph to mark a cross sign on the graph.
  • Page 18 Sound Level Meter DataLogger for examples: When you have Sound Level DATA LOGGER meter connected to PC and select "DataLogger" from main menu or click from tool bar to load recorded data from the meter and there will be a progress indicator to show the loading progress, if error occurs, just click "DataLogger"...
  • Page 19 Sound Level Meter 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.
  • Page 20 Sound Level Meter 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.
  • Page 21 Sound Level Meter Tutorial - Quick Start to Use SE324: (1) Recording real time data in waveform. (a) Power on the Sound Level Meter first and connect it to a PC USB port with the cable. (b) Start SE324 program. (c) If the connection is successful, the panel will display the same value as the Sound Level Meter.
  • Page 22 Sound Level Meter (b) There will be a save dialog window for you to choose the file name and file type to save. There are three types of file name you can choose, binary file(*.ghf), text file(*.txt) and EXCEL format file(*.csv). The *.ghf file use much fewer disk space to save the data than the other two file format, but it can only be used in SE324.

  • Page 23: Frequently Asked Question

    Sound Level Meter Frequently Asked Question: (1) How can I save the graph to a file which can be used in EXCEL? Answer: When you save a graph to a file, the default file format is "*.ghf" and you can select *.csv to save files. CSV is an EXCEL file format. You can open it in EXCEL.
  • Page 24 CENTER TECHNOLOGY CORP. 4 / F NO. 415, Jung-Jeng Rd., 238 Shu-Lin, Taipei, Taiwan TEL: 886-2-26763926 E-Mail : center@centertek.com FAX: 886-2-26763925 http : / / www.centertek.com GCA000324-02000 Authorized Distributor in Australia & New Zealand Pacific Sensor Technologies Pty Ltd Unit 4, 3 Neutron Place Rowville, VIC 3178 Australia 1300 662 720 | sales@pacificsensortech.com.au...