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TES 1352H Instruction Manual

Sound level meter datalogger and rs-232 software
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Sound Level Meter
Datalogger and RS-232 Software
TES-1352H
INSTRUCTION MANUAL
TES ELECTRICAL ELECTRONIC CORP.

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Summary of Contents for TES 1352H

  • Page 1 Sound Level Meter Datalogger and RS-232 Software TES-1352H INSTRUCTION MANUAL TES ELECTRICAL ELECTRONIC CORP.

  • Page 2: Table Of Contents

    CONTENTS Title Page 1. INSTRUMENT CARE ..................1 2. FEATURES..................... 2 3. MEASUREMENT PARAMETERS..............2 4. SPECIFICATIONS ..................3 5. CONTROLS AND FUNCTIONS ..............6 6. DISPLAY DESCRIPTION ................8 7. PREPARATION FOR USE ................9 8. CALIBRATION PROCEDURE ..............11 9.

  • Page 3: Instrument Care

    1. INSTRUMENT CARE Do not attempt to remove the mesh cover from the microphone as this will cause damage and affect the accuracy of the instrument. Protect the instrument from impact. Do not drop it or subject it to rough handling. Transport it in the supplied carrying case.

  • Page 4: Features

    2. FEATURES The Sound Level Meter complies with the requirements of IEC 61672-1:2003 standard for a Class 2 instrument. The instrument contains several features which permit sound level measurements under a variety of conditions. Features include: Ease of use. Easy to read large display. Five measurement ranges.

  • Page 5: Specifications

    4. SPECIFICATIONS Applicable standards: IEC61672-1: 2003 Class 2 IEC60651: 1979 Type 2 ANSI S1.4: 1983 Type 2 Measurement functions: • Main processing functions Sound level: Current time-weighted sound pressure level A or current time- weighted sound pressure level C Maximum time-weighted sound pressure level A or Maximum time-weighted sound pressure level C •...
  • Page 6 • Frequency for acoustic testing: 8000Hz. • Warm-up time: ≦ 2min • Sampling interval: Bar graph indication → 125 ms approx. Numeric indication → 1 sec approx. • Data record capacity: Data can be stored in the memory. Max. 32000 data can be stored. Max.
  • Page 7 • Internal back-up battery: Maintains real-time clock operation for at least 6 months (typically) if fully charged. • External power source: DC voltage from 5V to 12V Current rating: Approx. 10mA @ 6V Ambient conditions: • Operating conditions: -10°C to +50°C, 30% to 90%RH non-condensing •...

  • Page 8: Controls And Functions

    5. CONTROLS AND FUNCTIONS 1. Microphone : Electret Condenser microphone 2. Display: The LCD shows the sound level as a numeric value and a bar graph. The display also shows the operation mode of the instrument, the selected measurement parameters, warning indications and real-time clock/calendar. Button: Press to turn the instrument on and off.
  • Page 9 Button: Sets the time weighting to FAST or SLOW mode. FAST: uses a 125ms time-constant. This setting is used in most situations. SLOW: uses a 1s time constant, which smoothes out fluctuating levels. Data record mode: Press and hold this button for 3 seconds to enter data recording mode.

  • Page 10: Display Description

    6. DISPLAY DESCRIPTION Sound level range indicator (5 ranges): 30–90dB, 40–100dB, 50–110dB, 60–120dB and 70–130dB 2. Bar graph shows the current sound level (1dB resolution). Current date/time and maximum SPL measurement time. This indicator shows the “year - month - day” or “hour: minute: second”. 4.

  • Page 11: Preparation For Use

    7. PREPARATION FOR USE Power Supply The instrument can be powered by internal batteries, or for extended operation by an optional external 6V DC supply such as a suitable AC mains adapter or battery pack. Rechargeable batteries may be used in the instrument, but cannot be recharged when fitted as the instrument is not designed to recharge batteries.
  • Page 12 3. Windscreen When making measurements outdoors in strong winds or when measuring air conditioning equipment or similar, wind noise and strong air movements at the microphone can cause measurement errors. Such effect can be reduced by using the windscreen. Windscreen 4.

  • Page 13: Calibration Procedure

    8. CALIBRATION PROCEDURE Most national standards recommend that you calibrate your sound level meter before each set of measurements and check the calibration after each set. The procedure to check/adjust the displayed sound level in response to sound calibrator : 1.

  • Page 14: Measurement Procedure

    9. MEASUREMENT PROCEDURE Sound level measurement 1. Press the button to turn on the instrument. The initial state depends on the condition the instrument was in before it was last turned off. 2. Press the button to select the desired frequency weighting. For normal sound level measurements, select the “A”...

  • Page 15: Output Connectors

    11. OUTPUT CONNECTORS AC Output: An AC signal corresponding to the frequency-weighted signal is available at this connector. Output voltage: 1Vrms±100mVrms (scale upper limit) Output impedance: approx. 5kΩ Load impedance:≧1MΩ The output voltage when the instrument is in calibration mode (-6dB from scale upper limit, 1000Hz sine wave) is 0.5Vrms.
  • Page 16 TES ELECTRICAL ELECTRONIC CORP. 7F, No. 31, Lane 513, Rui Guang Road, Neihu Dist. Taipei. Taiwan, R. O. C. Tel : (02) 2799-3660 Fax : 886-2-2799-5099 E-Mail : tes@ms9.hinet.net http: //www.tes.com.tw May-2009-1...

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