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  • PCE Instruments 428 Sound Level Data Logger 25 to 136 db(A)

    # 428

    • This portable high-accuracy sound level meter has a large easy-to-read illuminated LCD screen that displays the sound pressure level (SPL) numerically and graphically in real time. Thanks to octave band filtering, even the slightest difference in frequency is detected.
    • The handheld meter also functions as a data logger, recording measurements at an adjustable interval from 1 s … 24 h and storing the recorded measurement data to a micro SD card memory.
    • This device measures from 25 … 136 db(A) at a frequency of 20 Hz … 12.5 kHz. The meter features A, B, C and Z frequency weightings as well as fast, slow and impulse time weightings.
    • PCE-428 is a class 2 data-logging sound level meter that meets IEC 60651:1979, IEC 60804:2000, IEC 61672-1:2013, ANSI S1.4-1983 and ANSI S1.43-1997 requirements. This portable high-accuracy sound level meter has a large easy-to-read illuminated LCD screen that displays the sound pressure level (SPL) numerically and graphically in real time. Thanks to octave band filtering, even the slightest difference in frequency is detected.
    • The handheld meter also functions as a data logger, recording measurements at an adjustable interval from 1 s … 24 h and storing the recorded measurement data to a micro SD card memory. The SD card can be removed from the meter and inserted into the SD card reader of a PC. Alternatively, the decibel meter can be connected directly to a PC via USB. The provided PC-compatible software allows for quick and easy data analysis.
    • This device measures from 25 … 136 db(A) at a frequency of 20 Hz … 12.5 kHz. The meter features A, B, C and Z frequency weightings as well as fast, slow and impulse time weightings. The PCE-428 decibel meter is commonly used by professionals to ensure compliance with environmental noise regulations and workplace noise permissible exposure limits.
    • Accuracy class 2
    • A, B, C and Z frequency weightings
    • Fast, slow and impulse time weightings
    • 1/1 octave band filter (optional 1/3 octave band filter upgrade)
    • Adjustable data-recording interval from 1 s … 24 h
    • Real-time numerical and graphical LCD display
    • Adjustable alarm
    Measuring range25 … 136 db(A)
    AccuracyClass 2
    Frequency range20 Hz … 12.5 kHz
    StandardsGB/T 3785.1-2010
    GB/T 3785.2-2010
    IEC 60651:1979
    IEC 60804:2000
    IEC 61672-1:2013
    ANSI S1.4-1983
    ANSI S1.43-1997
    Frequency analysis1/1 Octave band filter: 20 Hz … 8 kHz
    1/3 Octave band filter: 20 Hz … 12.5 kHz
    Microphone1/2″
    Microphone Class: 2
    Sensitivity: 40 mV/PA
    Frequency range: 20 Hz … 12.5 kHz
    Connection: TNC
    Power supply: ICCP Standard
    Data-logging interval1 s … 24 h (adjustable)
    Measuring functionsLXY (SPL), LXeq, LXYSD, LXSEL, LXE, LXYmax, LXYmin, LXPeak, LXN
    X = Frequency weighting: A, B, C, Z
    Y = Time weighting: F, S, I
    N = Statistics in %: 1 … 99%
    Frequency weightingsA, B, C, Z
    Time weightingsFast (F) 125ms, Slow (S) 1 sec, Impulse (I) 35 ms
    Inherent noiseMicrophone: 20 db(A), 26 db(C), 31 db(Z)
    Electronics: 14 db(A), 19 db(C), 24 db(Z)
    AD converter24 Bit
    AD Sample rateStandard: 48 kHz
    LN Mode: 20 ms
    Measuring displayNumerical
    Bar graph
    Graphical
    Display160 x 160 pixel LCD with backlight
    Memory4 GB Micro SD card
    InterfaceUSB (Memory readable via software or directly as mass storage)
    RS-232
    Voltage outputAC 5V RMS
    DC 10 mV/db
    AlarmAdjustable
    Power supply4 x 1.5V AA Batteries
    12V / 1 A Power plug
    5V / 1 A USB
    Battery lifeMin. 10 h continuous use
    Dimensions70 x 300 x 36 mm / 2.76 x 11.81 x 1.42 in (W x H x D)
    WeightApprox. 620 g / 1.4 lbs incl. batteries
    • 1 x Sound Level Data Logger PCE-428
    • 1 x Microphone
    • 1 x Wind noise suppressor (foam ball)
    • 1 x USB cable
    • 1 x PC software is a free download
    • 1 x Power supply
    • 1 x User manual
    • 1 x Carrying case

    Note: This meter comes standard with a 1/1 octave band filter. An optional 1/3 octave band filter upgrade is available for an additional fee.

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