TENMARS TM-103 Sound Level Meter Data Logger User Manual

TENMARS TM-103 Sound Level Meter Data Logger

Thank you for using our Sound Level Meter. To ensure that you can get the most from it, we recommend that you read and follow the manual carefully before use.

This unit conforms to the IEC651 Type2, ANSI S1.4 Type2 for Sound Level Meters. This Sound Level Meter has been designed to meet the measurement requirements of safety Engineers, Health, Industrial safety offices, and quality control in various environments.

• Ranges from 30dB to 130dB at frequencies between 31.5HZ and 8 kHz.
• Display with 0.1dB steps on a 4 digits LCD.
• With two equivalent weighted sound pressure levels, A and C.

GENERAL DESCRIPTION & SPECIFICATIONS

• Display: 4 digits LCD with maximum/minimum, Resolution: 0.1dB, Display Update: 0.5 sec.

• The standard applied: IEC 61672-1 Class2, ANSI S1.4 Type2.

• Frequency range: 31.5Hz~8KHz.

• Measuring level range:
  the lighting of 30 ~130 dB. C Weighting 35~130dB.

• Frequency weighting: A/C.

• Microphone: 1/2 inch Electret condenser microphone.

• Time weighting: FAST(125mS),SLOW(1 sec).

• Level ranges: 30 ~130dB(Auto Range).

• Accuracy: 1.5dB.

• Dynamic range: 50dB.

• MAX/MIN: Hold readings for the Maximum and Minimum values.

• DATA HOLD: The reading data shown on LCD can be locked while pressing the button

• Low Battery Indication: Replace the battery as LCD display “ ”.

• Power Supply: 9V NEDA 1604 IEC 6F22, JIS 006P battery×1pcs.

• Power Life: About 50 hrs (alkaline Battery).

• Operation height: 2000M under the elevation above sea level.

• Operation temperature & Humidity:
  5 C~40 C, below 80%RH.

• Storage Temperature & Humidity:
  – 10 C ~60 C, below 70%RH.

• Dimension: 200mm(L)x55mm(W)x38mm(H).

• Weight: About 170g. (Including batteries)

• Accessories: Instruction manual carrying case 9V Battery, windscreen.

NAME AND FUNCTIONS

1. Windscreen.

2. Display.

3. HOLD button.

4. Frequency weighting select button.

5. Time weighting select button.

6. Maximum/Minimum hold button.

7. Backlight button.

8. Power button.

9. REC button. (TM-103)

10. USB Interface Connector.(TM-103)

11. Microphone.

12. Battery Cover.

13. Windscreen
    If you operate at wind speed over 10m/sec, please put protective accessories- windscreen in front of the microphone.

14. Display

    • a. Low battery indication
    • b. DATA HOLD indication
    • c. Maximum indication
    • d. Minimum indication
    • e. A-Weighting
    • f. C-Weighting
    • g. Slow response
    • h. The fast response
    • i. REC response
    • j. Sound level readout

15. HOLD button
    The reading data shown on LCD can be locked while pressing the button.

16. Frequency Weighting select button.

    • A: A-Weighting. For general sound level measurements.
    • C: C-Weighting. For checking the low-frequency content of the noise. (If the C-Weighted level is much higher than the A-weighted level, then there is a large amount of low-frequency noise)

17. Time weighting select button.

    • FAST: for normal measurements.
    • SLOW: for checking the average level of fluctuation noise.

18. MAX/MIN hold button

    • Press the key to activate the function. The “MAX” symbol appears on the display and the instrument measures and shows the Maximum value of the parameter which automatically updates itself when a larger value is measured.
    • Press the key again and the “MIN” symbol appears on the display the instrument measures and displays the Minimum value of the parameter which automatically updates itself when a lower value occurs.
    • The MAX/MIN function will be disabled if: The MAX/MIN is pressed for more than 1 second.
      Turn off the meter.

19. Backlight button.
    Press the button you enable the display backlight to easy readings in dark environments. Press more than 1 second to disable the backlight, which however it automatically OFF after 15 seconds.

20. Power button.
    The key for 1 sec to turn the sound level meter ON or OFF. The auto power will be off automatically after 5 minutes of idle time

21. REC button(TM-103)
    Press the button to start recording data and press REC again to stop recording.
    THE MINIMAL INTERVAL IS 1 SECOND AND THE MAXIMUM INTERVAL TIME IS 7 HOURS 59 MINUTES AND 59 SECONDS

    • TOTAL RECORDS 14.000.

22. USB Interface Connector (TM-103)
    USB interface with a personal.

23. Microphone
    1/2 inch Electret Condenser microphone. 12 Battery cover.

CALIBRATION PROCEDURES

1. Using a standard Acoustic Calibrator.
   (94dB, 1KHz Sine wave)

2. Make the button settings. Display: dBA
   Time weighting: FAST

3. Insert the Microphone nozzle carefully into the insertion hole of the calibrator.

4. Press the A/C button then press the HOLD button and hold the 2 buttons at the same time for more than 1 second. LCD will be blinking to confirm calibration.

5. When LCD blinked, release the A/C and the HOLD buttons. The sound level meter will display 94.0 dBA. The calibration is done.

6. The 94dB calibration process can be repeated until the meter reads 94.0 dB. Recalibration cycle: 1 year.

MEASUREMENT PREPARATION

1. Battery Loading
   Remove the battery cover on the back and put in one 9V Battery.

2. Battery Replacement When the battery voltage drops below the operating voltage, the mark appears. If it appears, the battery should be replaced with a new one.

OPERATING PRECAUTIONS

1. Wind blowing across the microphone would bring additional extraneous noise. Once using the instrument in the presence of wind, it is necessary to mount the windscreen preventing to pick up of undesirable signals.
2. To achieve a more accurate measurement, use an extension cable to separate the Microphone from the main body so that the effect of unexpected sound reflection can be eliminated.
3. Calibrate the instrument before operation if the instrument was not in use for a long time or operation at a bad environment.
4. Do not store or operate the instrument at high temperatures and high humidity environments.
5. Keep the microphone dry and avoid severe vibration.
6. Please take out the battery and keep the instrument in a low-humidity environment. When it is not in use.

MEASUREMENT

1. Open the battery cover and install a 9 Volt battery in the battery compartment.
2. Turn on the power and select the desired response time and weighting. If the sound source consists of short bursts or only catching sound peaks, set the response to FAST. To measure the average sound level, use the slow setting. Select A weighting for general noise sound level and C weighting for measuring the sound level of acoustic material.
3. Hold the instrument comfortably in your hand or fix it on a tripod and point the microphone at the suspected noise source, the sound pressure level will be displayed.
4. When MAX/ MIN (maximum, minimum hold) mode is chosen. The instrument captures and holds the maximum or minimum noise level. Press once to select the MAX value. Press again to select the MIN value, Press again to exit the MAX/MIN mode. The “MAX” or ”MIN” symbol disappears.
5. Turn off the instrument and remove the battery when it is not in use.
6. If the test exceeds 130dB, LCD will be displayed , and if it is below 30dB, it will display .

SETUP USER END

1. The User End package contains
   • Custom-designed USB cable for User End
2. System Required
   • Windows 2000/ XP/10
3. Minimum Hardware Required
   • Pentium III 500MHZ PC compatible, or above 128MB RAM; At least 10MB hard disk space available to install User End program. Recommended display resolution is 800X600 or above.

USER END MANIPULATION MENU

1. Tool Bar
   Toolbar section has 6 buttons:[Connect] [Download ]

   • [Update Meter Date/Time]
   • [Save Records to File] [Print] Use the button [Connect ] to connect the meter and PC. This step is the first step to using this software. Use the button [Download] to download records from Meter to the Local computer.
   • If you are downloading, the meter’s button will be unavailable.
   • Use the button [Erase] to erase all the records saved in memory.
   • Use the button [Update Meter Date/Time] to let the time in the meter be the same as the computer time. Remember if the battery is taken out, the clock in the meter will stop.
   • Use the button [Save to File] to export the records from the list box to a txt file. This button will be enabled after downloading records.
   • Use the button [Print] to print all the downloaded data.

2. Real time Data
   The real-time data section is used to display real-time data including DB value, dba/dbc status, fast/slow status, hold, rec, and max/min status. The current meter situation including total group and total records in the memory, interval, meter date, and time, are also displayed on the left side.

3. Group information Data
   The group information data section is used to display selected group information including start time, end time, dba/dbc status, and records number in the selected group.

4. Status Message
   The status message is to display current mete status such as recording, connected, disconnected,

5. Setting Data
   This section is used to set intervals into meters.

6. Records Data
   Data will be downloaded into this section after the [download records] button is pressed.

7. Connected Signal
   The light is used indicated connection status. Green means connected, and red means disconnected.

END OF LIFE

Caution:
This symbol indicates that equipment and its accessories shall be subject to a separate collection and correct disposal.

Professional Electrical and Environment Test & Measurement Instruments:
Battery Capacity / Impedance Tester, TACHO Meter, LED light meter, Temperature & Humidity meter, Infrared Thermometer, Sound level meter, Light meter, EMF meter, UV Light meter,

RF meter, Hotwire Anemometer, CO meter Anemometer, Lan cable tester, CO2 meter, Solar power meter, Radiation meter, Clamp meter, Multimeter, Phase Rotation test, and Digital Insulation tester.

Our products of high quality are selling well all over the world

TENMARS ELECTRONICS CO., LTD
6F, 586, RUI GUANG ROAD, NEIHU, TAIPEI 114, TAIWAN.

• E-mail: service@tenmars.com.
• Web: http://www.tenmars.com.

References

• TENMARS

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