Tenmars ST-120 Class 1 Sound Level Meter Calibrator

AUD $895.00 • ( AUD $984.50 inc. GST )

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    The Tenmars ST-120 Class 1 Sound Level Meter Calibrator is a hand-held device that emits an audible tone of very accurate level and frequency and is used before making sound measurements. The Calibrator is fitted over the meter’s microphone and the reading is either checked manually by the user or automatically by the meter.

    Tenmars ST-120 Sound Level Meter Calibrator Product Description.
    • For 1/2-inch condenser microphone calibration
    • IEC 60942:2003 Class1/ANSI S1.40-1984.
    • Output sound level: at 94dB and 114dB.
    • Frequency: 1000Hz ±1% Class1 A, C, Z; 250Hz ±1% (Z).
    • Sound pressure levels: at 94dB and 114dB.
    • Harmonic wave distortion ±3%.
    • Output feedback detection.
    • Low battery indication

    Authorised Australian Distributor

    WARRANTY 3

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    The Tenmars TM-120  Class 1 Sound Level Meter Calibrator is a hand-held device that emits an audible tone of very accurate level and frequency. Before making sound level measurements the Calibrator is fitted over the meter’s microphone and the reading is either checked manually by the user or automatically by the meter.

    Checking a meter’s calibration is good practice and for many applications it is essential. Most regulations demand that the meter is verified before making measurements. Records should be kept of this as evidence that the correct procedures have been followed.

    A Sound Level Calibrator should meet the standard IEC 60942 to either Class 1 or Class 2. The Class 1 calibrator is a little more accurate than the Class 2. In general, if you have a Class 1 (or Type 1) Sound Level Meter then you should use a Class 1 Calibrator. If you have a Class 2 Sound Level Meter you can use either a Class 2 or Class 1 Calibrator.

    Using the Tenmars ST-120 Meter Calibrator

    The Tenmars ST-120is a class 1 calibrator that emits an audible tone of very accurate level and frequency and is used before making sound measurements. The Calibrator is fitted over the meter’s microphone and the reading is either checked manually by the user or automatically by the meter.

    The TM-120 meets the standard IEC 60942 Class 1. The Class 1 calibrator is more accurate than the Class 2 calibrators. In general, if you have a Class 1 (or Type 1) Sound Level Meter then you should use a Class 1 Calibrator. If you have a Class 2 Sound Level Meter you can use either a Class 2 or Class 1 Calibrator.

     

    Tenmars ST-120 Specifications:
    Output Frequency 1000Hz ±1% (Class1.) A, C, Z
    Accuracy 94dB ±3dB; 114dB ±0.5dB
    Environmental Temperature 20°C
    Relative Humidity 85%
    Atmospheric Pressure 850mbar to 1050mbar
    General Specifications
    Power Supply 9 Volt battery 006P, IEC 6F22, NEDA 1604
    Dimensions 125mm (L) x 48mm (Dia)
    Weight approx. 285g (including batteries)
    Ordering Information
    Model Name Description
    Tenmars ST-120 Class1 Sound Level Calibrator
    Included accessories: Battery, and Owner’s manual
    Weight .5 kg

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