REED C 322 Sound Level Meter, BS-6 Tripod, SC-05 Sound Calibrator, USB-300 USB Cable, CFD00120V-09V10 AC Adapter Instruction Manual
Below you will find brief information for Sound Level Meter C 322, Tripod BS-6. The Sound Level Meter C 322 is a datalogging sound level meter with a large dynamic range (50 dB). The device features automatic ranging for measurements from 30 to 130 dB and a 32,000 record datalogger. It also includes an RS232 interface and Windows software for downloading, viewing, and analyzing data records. The Tripod BS-6 can be used to mount the sound level meter for stable measurements.
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Model
C-322
Pantone 534 Blue - 100/80/30/5
Datalogging
Sound Level Meter
Instruction
Manual
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Tripod sold separately (Model BS-6)
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Table of Contents
Features ......................................................................................... 3
Specifications ................................................................................ 3
Instrument Description ...............................................................4-5
Operating Instructions ................................................................6-7
Power and Backlight ................................................................... 6
Frequency and Time Weighting Selection .................................... 6
Level Range ................................................................................ 6
Taking a Measurement ................................................................ 7
MAX/MIN Hold ............................................................................ 7
Auto Power Off ........................................................................... 7
Datalogging ................................................................................... 8
Clock Setup ................................................................................ 8
Recording Interval Setup ............................................................. 8
Erasing the Memory .................................................................... 8
Calibration Procedures .................................................................. 9
Setup TestLink RS232 Interface Software ................................9-13
Tutorial - Quick Start to Use SE322 TestLink .........................13-15
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Features
• IEC651 Type II
• Auto-ranging from 30 to 130 dB
• Dynamic range of 50 dB
• 32,000 record datalogger
• User selectable sampling intervals
• Real-time clock logs each data point with time and date
• 4-digit backlit LCD display with analog bar graph
• AC and DC output
• Max/Min function
• Auto power off
Specifications
Measuring Range:
Resolution:
Accuracy:
Frequency Range:
Microphone:
32 to 80 dB, 50 to 100 dB, 80 to 130 dB
0.1 dB (1dB analog)
±1.5 dB @ 94 dB
31.5 Hz to 8 kHz
1/2” electret condenser microphone
Operating Conditions: 0 to 40°C ( 32 to 104°F), 10 to 90%RH
Storage Conditions: -10 to 60°C (14 to 140°F), 10 to 75%RH
Power Supply:
Dimensions:
1 x 9V alkaline battery
275 × 64 × 30mm (10.8 × 2.5 × 1.2”)
Weight:
Includes:
285g (0.55lb)
Calibration screwdriver, windshield ball, RS232 cable, Windows datalogging software, carrying
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Optional Accessories: Sound Calibrator (SC-05),
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USB Cable (USB-300), Tripod (BS-6),
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Instrument Description
1. Windshield ball
2. LCD display
3. Power & backlight button
4. MAX/MIN hold button
5. Record button
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7. Time weighting button
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8. Level range control button
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9. Microphone
10. CAL potentiometer
11. RS232 interface
12. Signal output terminal
13. External power supply terminal
14. Tripod mounting screw
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15. Battery cover
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Display Description
Symbol
MAX
MIN
FAST
SLOW
-
REC
FULL
Function
Under range
Maximum indication
Minimum indication
Fast response
Slow response
Over range
Range indication
Recording datalogger
Memory is full
Auto Power OFF is active
Low battery
Auto level range selective
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dBC
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Red - 10/100/100/5
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A-Weighting
C-Weighting
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Under range 20dB
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Operating Instructions
Wind noise in the microphone can cause measurement errors. Use the windshield ball to reduce any wind effect on your measurement.
Power and Backlight
Press the Power button to turn the meter on. When the meter is turned on, the LCD will show how much memory is currently available. Press and hold the Power button to turn the meter off. While the meter is on, press the Power button to turn the backlight on and off.
Frequency and Time Weighting Selection
Selecting the proper Frequency and Time Weighting is essential in obtaining accurate measurements.
Press the A/C button to switch between A and C Frequency Weighting.
•
A Frequency: General sound level measurement
• C Frequency: Low-frequency sound level measurement
Press the Fast/Slow button to switch between fast and slow Time
Weighting measurements.
•
Fast: Normal measurements (125mS)
• Slow: Checking average level of fluctuating noise (1s)
Level Range
Press the LEVEL button to select the appropriate measuring range.
• LO: 30 - 80dB
• MED: 50 - 100dB
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• HI: 80 - 130dB
•
AUTO: 30 - 130dB
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Taking a Measurement
1. Turn the power on and select the desired Frequency, Time, and
Level
2. Point the microphone at the noise source to be measured
3. The sound level will be displayed on the LCD screen
MAX/MIN Hold
Select the proper level range before using
MAX/MIN mode to ensure that the reading value will not exceed the measurement range. Press the
MAX/
MIN button to enter the maximum and minimum recording mode. Press the button once to select MAX value. Press it again to select MIN value, and press it once again to select current value with MAX MIN symbol blinking. Press the
MAX/MIN button and hold it down for 2 seconds to exit the MAX/MIN mode.
Note: If the sound level range or change A-C weight are changed, the
MAX/MIN mode will be cleared.
Auto Power Off
By default, the meter is in auto power off mode. The meter will power itself off after 30 minutes without operation (button operation, RS232 communication and no recording operation). To disable the auto power off, press and hold the FAST/SLOW button and turn the meter on. The symbol will NOT appear. This indicates that the auto power off has been disabled.
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Datalogging
When the REC button is pressed, the meter will start recording.
Pressing the REC button again will stop recording.
Clock Setup
1. With the meter off, press and hold the A/C button
2. Turn on the meter
3. Press the MAX/MIN button
4. Press REC to increase or LEVEL to decrease the number
5. Press the
MAX/MIN button to adjust next item. The adjusting order is Year month day hour minute
6. Press the MAX/MIN button to finish the setup
7. If you want cancel setup at any time, press power button
Recording Interval Setup
1. With the meter off, press and hold the
A/C button and turn the meter on
2. Press the FAST/SLOW button
3. Press REC to increase or LEVEL to decrease the number
4. Press the FAST/SLOW button to adjust next item
5. Press the
FAST/SLOW to finish the setup
6. If you want cancel setup at any time, press power button
Erasing the Memory
1. Turn off the meter
2. Press and hold REC button
3. Press power button and hold for at least 5 seconds
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4. The LCD will then show “CLR” and “SURE” to clear the memory
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Calibration Procedures
Calibrate the instrument before operation if the instrument was not in use for a long time or it was operated in a bad environment
1. Make the following switch settings:
Display: dBA
Time weighting: FAST
Measurement mode: MAX MIN Mode function disabled
Level range: 50 to 100dB
2. Insert the microphone housing carefully into the insertion hole of the calibrator.
3. Turn on the switch of calibrator and adjust the CAL potentiometer of the unit. The level display will indicate the desired level.
4. This meter was calibrated before shipment. In order to ensure the accuracy of the sound level meter for a long period of time it should be calibrated once a year.
Setup TestLink RS232 Interface Software
System Requirements: Windows 98/NT 4.0/NT2000/XP/VISTA
Minimum Hardware Requirements: PC or NoteBook with Pentium 90MHz or higher, 32 MB RAM. At least 5 MB hard drive space available to install
TestLink. The recommended resolution is 800 x 600.
Installing TestLink
1. Close all other applications before installing TestLink
2. Insert setup CD into the CD drive.
3. Choose the Start button on the Taskbar and then select Run
4. Type E:\SETUP and click OK, then it will copy SE322.exe
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(default is c:\program files\TestLink\SE322)
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Main Menu
File/Open
Save
Printer Setup
Retrieves files from the disk
Saves the active window (when the caption bar is highlighted) data to the hard drive
Prints the data of the active window (graph or list)
Selects printer
File/Exit
View/Control Panel
View/Real-Time Graph
Terminates TestLink program
By opening the Panel Window, the user can control meter via the button in this window
Opens Real-Time Graph display to a graph of the present data
Real Time Data/Run Starts collecting real time data
Stop Stops collecting real time data
DataLogger
By opening the DataLogger Window, the user can load recorded data of meter to PC in this window
Graphing tabular data Output To Graph
The Underlines indicate the keyboard shortcuts to get to this actions.
Simply use the Control key on your keyboard with the Underlined caracter.
IE: The keyboard shortcut to Save is Control S.
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Graph
You can choose a rectangle area on the graph to zoom in for detail. There are two vertical lines (Cursor A and Cursor B) in the graph. Time and value are displayed on the top and right side of each cursor.
You can move the mouse cursor over Cursor A or
B and click to select and drag the mouse cursor to move these cursors left or right. Right below Cursor A and B is a slider. You can also click and drag slider to move Cursor A or B.
At the top of this screen are the statistics/values for the Start Time, Sampling Rate, Data Number, Maximum and Minimum values of the graph. At the bottom of the screen are the statistics/values for the maximum and minimum average between Cursor A and B. This data will update automatically when Cursor A or B are moved.
You can double click the graph to call up the option dialog. In the option dialog, you can customize your graph style.
You can also right click the graph (real time graph is not allowed) to call up the popup menu.
To Zoom into this graph using the mouse, Left click (click the left mouse button) and drag the cursor to select the new extents and release the mouse button.
To Undo the Zoom, Right click on the graph, you will see a pop-up menu, select Undo Zoom.
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Tool Bar
Display or hide Statistic 1
Display or hide Statistic 2
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.
When selected, the mouse cursor will become a “I” sign when moving to the graph, click on the graph to annotate.
Color graph
Monochrome graph
DataLogger
Once the meter is connected to the PC, either select “DataLogger” from
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the main menu or click on in the tool bar. This will load the data from the meter, the progress indicator will display the loading progress. If an
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error occus, simply click on “DataLogger” again.
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After the data has been loaded, the left hand side of the computer screen will show how many data sets were loaded as well as the detail information for each data set: Start Date, Start Time, Recording Rate and
Record Numbers. Here is an example:
The data set will be transfered to the graph on the right hand side of the screen, each time after you load your recorded data from the meter. The waveform graph and statistics on the right hand side of the screen displays the information of the data set you have chosen. Therefore, you can click any data sets to the change the data set displayed in the graph.
Tutorial - Quick Start to Use SE322 TestLink
Recording real time data in waveform
1. First turn the meter on and connect it to a PC RS232 serial port using the cable (SE-300) provided.
2. Start SE322 program.
3. If the connection is successful the panel will display the same value as the Sound Level
Meter. If the connection between the meter and the PC has failed, it will display “No
Connection” in the panel window in
TestLink SE322.
4. When the connection is successful, click to start recording real time data and there will be a waveform on the Real Time Graph
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How to save the recorded real time data to a file?
1. Click the graph window you want to save and the graph window will become active, then choose File/Save from main menu or click from the tool bar. an active window a non active window
2. In the save dialog window, choose the file name and file type you wish to save. Your choices are: Binary file (*.ghf), Text file (*.txt) and Microsoft Excel file (*.csv). The Binary format (*.ghf) will create a much smaller file size however, it can only be used in TestLink
SE322. The Text format (*.txt) can be opened by TestLink SE322 and any other word processor program such as Microsoft Word,
Notepad etc. The Microsolt Excel format (*.csv) can be opened by
TestLink SE322 and Microsoft Excel.
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How to load the recorded data from the memory of the meter and save it to a file?
1. Turn the meter on
2. Press the “ REC” button of the meter to start recording data
3. After a while, press “
REC” button again to stop recording data
4. Connect the meter to a PC
5. Start the SE322 program
6. Choose Data Logger from the main menu or click from tool bar
Frequently Asked Questions
Question: I connected the meter to a PC serial port and turned meter on, but it still shows “NO CONNECTION”.
Answer: It could be that all serial port you’re using is occupied by another application, close all other applications. If it still don’t work. Restart your computer and run
TestLink SE322 again.
Question: How can I save the graph to a file which can be used in Microsoft Excel?
Answer: When you save a graph to a file, the default file format is *.ghf and you can also select *.csv. CSV is an Microsoft Excel file format. You can then open it using
Microsoft Excel.
Question: How do I uninstall TestLink SE322?
Answer: Launch the Add/Remove Programs applet out of the Control Panel, highlighting the SE322, and clicking on the Add/Remove button. This will remove the
SE322 folder and files from your computer.
Question: Why would loading data fail?
Answer: This might be caused by the slow response from some of the PC.
Question: How do I zoom into the graph?
Answer: Left click (click the left mouse button) and drag the cursor to select the new extents and release the mouse button.
Question: When I setup the real time sampling with a fast rate (eg. 0.1 sec), some of the sampling data might be lost.
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Battery Replacement
When the battery voltage drops below the operating voltage, this symbol will appear . Remove the battery cover on the back and insert a new
9V Battery. Verify that the polarity is correct.
Notes _________________________________________
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Key features
- Datalogging capabilities
- Auto-ranging (30 to 130 dB)
- 32,000 record datalogger
- RS232 interface
- Windows software for data analysis
- Max/Min function
- Frequency weighting selection (A & C)
- Time weighting selection (Fast & Slow)
- Backlit LCD display
- Auto power off