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Noise Dosimeter

SV 104

The noise dosimeter meets international safety standards for measuring workplace noise levels and hearing protection. It follows the ISO 9612, OSHA, MSHA, and ACGIH guidelines. Our noise dosimeter uses a patented MEMS microphone that is covered by a lifetime warranty. This ensures that the noise exposure measurements are as accurate as possible.

What is a noise dosimeter?

A noise dosimeter is a sound measuring instrument meeting IEC 61252 international standard’s performance criteria in the range of 55 dB to 140 dB and frequencies from 20 Hz to 8 kHz. Usually, noise dosimeters follow the same requirements as class 2 sound level meters.

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noise dosimeter
Personal Noise Dosimeters
technologia MEMS
MEMS microphone

OLED screen

Personal Noise Dosimeters

Features

Wearable dosimeter

Noise dosimeters designed to be worn on a person.

A wearable noise dosimeter is a sound level meter that people wear. It is typically worn on the shoulder, collar, or other location close to the ear. This type of usage makes the noise exposure measurement an unattended one. For this purpose, the SV 104 has been equipped with multiple features for automatic event detection and noise source validation.
noise dosimetry

Noise Dosimeters Use

The personal noise dosimeters designed to measure noise levels.

A noise dosimeter is used to measure the noise levels a worker is exposed to during a work day. If noise levels may reach or exceed the action limit, noise exposure measurements must be conducted. Similarly, whenever there is a change that may cause employees' noise exposure to increase, or when the current hearing protection workers are using may not meet safety requirements, personal noise exposure measurements must be used.
occupational noise exposure

Noise Dosimeter vs Sound Level Meter

What is the difference between sound level meters and noise dosimeters?

The difference between a noise dosimeter and a sound level meter is that the noise dosimeter is worn on a worker's shoulder, while the sound level meter is handheld. Specifications for both sound level meters and noise dosimeters usually correspond to those for a class 2 sound level meters, as given in IEC 61672-1.
SV104 Personal noise dosimeter

Reliable hardware

Noise dosimeters events detection

The built-in tri-axial accelerometer records any shocks or vibrations that might influence sound level results. The time history is cleared of any undesirable noise levels, making them easy to eliminate from the dose calculation. Our MEMS microphone is shock-resistant, so it won't be damaged if it's hit or shocked. This is important because the microphone needs to be able to pick up sounds accurately.
occupational noise exposure

Calibration with an Acoustic Calibrator

The auto-calibration facility starts the calibration process automatically.

The SV 104 is easy to use because of the auto-calibration facility. This means that the instrument detects the calibration signal from an acoustic calibrator and starts the calibration process automatically. The calibration data is saved with the measurement file, both before and after measurement.
personal dosimeter

Noise Dose Calculation

The dedicated Supervisor pc software can help you calculate your noise exposure.

The SV 104 works with the Supervisor pc software package that helps you calculate how much noise you are exposed to. This follows international standards for doing this, such as ISO 9612, OSHA, MSHA, and ACGIH. You can use the data files from the SV 104 to figure out your noise exposure.
noise survey at work

Occupational Noise Measurements

Applications

Occupational Noise

Noise dosimeters conforming to IEC 61252 and ANSI S1.25-1991

The SV 104 is a dosimeter that meets the standards set by IEC 61252 and ANSI S1.25-1991. These noise dosimeters are used to monitor occupational noise exposure, which ranges from 55 dB to 140 dB. To measure how much noise someone is exposed to, the SV 104 can create three different profiles, each measuring a different standard, with configurable settings such as criterion level or an exchange rate.
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noise dosimetry

Noise dosimeters

Videos

Personal noise dosimeters

Use of PC software

Price or Noise Dosimeter Hire

SV 104 – Noise Dosimeter

SV 104 – Noise Dosimeter
The SV 104 kit includes a shock-resistant MEMS microphone with a LIFETIME WARRANTY, windscreen, 8 GB memory and USB cable for communication with a PC. Each SV 104 has a factory calibration certificate and a 36-MONTH WARRANTY upon product registration. The standard kit also includes a license for PC software.

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Open list

SF104_OCT - License of 1/1 octave analysis for SV 104

SF104_OCT - License of 1/1 octave analysis for SV 104

License of 1/1 octave analysis for SV 104

SF104_WAV - License of Audio events recording for SV 104

SF104_WAV - License of Audio events recording for SV 104

License of Audio events recording for SV 104

SA122A_3 - Windscreen for SV 104 dosimeter (3 pcs pack)

SA122A_3 - Windscreen for SV 104 dosimeter (3 pcs pack)

Windscreen for SV 104 dosimeter (3 pcs pack)







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    Noise dosimeter

    Specification

    SV 104 – Noise Dosimeter

    Applications

    Sound measurements
    Occupational noise

    Hardware Features

    Number of channels 1
    Intrisic safety
    Self-vibration detection
    Auto-calibration
    Keyboard lock
    Remote communication
    Bluetooth
    Communication Interfaces USB, infrared
    LED indicator
    Display
    Keyboard 3 push buttons
    Memory 8 GB
    Battery type Ni-MH rechargeable cells
    Operating time > 40 hours
    Operating temperature range -10 °C ÷ +50 °C
    Humidity range up to 95 % RH
    Weight 121 g
    Size 88 x 49.5 x 19.2 mm
    Docking station required

    Sound measurements features

    Standards IEC 61252 ed1.1 (2002); ANSI S1.25-1991 (R2007)
    Microphone type SV 27 MEMS microphone
    Linear operating range to IEC 61672 55 dBA RMS ÷ 140.1 dBA Peak
    Frequency range 20 Hz ÷ 10 kHz
    Weighting filters A, C and Z
    Time constants Slow, Fast, Impulse
    Exchange rates 2, 3, 4, 5, 6
    Criterion levels selectable
    Profiles per channel 3 with independent filters (x) and time constants (y)
    Min logging step 1s logger step
    Statistics in octaves or third octaves
    Audio recording option
    Voice coments
    1/1 octave option

    SV 104

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