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Class 1 Sound Level Meter

SV 971A

The SV 971A Class 1 sound level meter is designed for occupational noise and building acoustics measurements. The type 1 noise meter uses a microphone offering a linear measurement from 27 to 140 dB in a single range. For ease of use the sound level meter uses dedicated mobile applications, that support sound measurements as well as RT60 and STIPA.

What is a Class 1 Sound Level Meter?

A Class 1 Sound Level Meter is a sound measuring instrument that meets the IEC 61672-1:2013 (or equivalent BS EN 61672-1:2003 or DIN EN 61672-1:2014) standard’s performance criteria such as linear operating range, frequency response, and temperature operating range.

class 1 sound level meter
Class 1 SLM
sound level meter app
Mobile App
iec 61672 sound level meter
IEC 61672

Sound Level Meter PDF

Catalogues

Class 1 Noise Level Meter for Occupational Noise

See how SV 971A features can make noise measurement easier and faster. The meter is equipped with all frequency weightings to provide sound pressure measurements as well as peak sound pressure levels at workplaces.
971a svantek catalogue hs

Class 1 Sound Level Meter for Building Acoustics

Check out the features that make sound insulation measurements applications more efficient following international standards.
971a svantek catalogue ba

Sound Level Meter and Analyser

Features

How do I choose a sound level meter?

Know the measurement standard: ISO, OSHA, MSHA, ACGIH

To choose a sound level meter, you need to know the measurement standard (ISO, OSHA, MSHA, and ACGIH) that will tell you exactly what type of sound level meter you need. The SV 971A meets the performance criteria of IEC 61672 and is equipped with a new measuring microphone that offers an LAeq linear measurement range from 27 to 137 dB (140 dB Peak) in a single range! This provides an accurate response to sound pressure measurements for noise at work, as well as basic environmental measurements with external microphones.
SV971A Class 1 Sound Level Meter

Octave Band Sound Level Meter

Sound frequency analysis in 1/1 and 1/3 octave bands

Octave Band Sound Level Meter is a device that meets IEC 61672 requirements and is capable of analyzing the sound in 1/1 or 1/3 octave frequency bands in real-time. The SV 971A not only can measure and log 1/1 octave or 1/3 octave analysis at the selectable period of time, but it can also record WAV files!
SV971A Class 1 Noise Level Meter

Sound Level Meter App

Extension to the meter's user interface

Sound Level Meter App is an app for mobile devices that connects to a sound level meter and provides an extension to the meter's user interface. The smartphone application helps the user calculate the insulation following ISO 16283. Sound insulation results are presented on the display and in the form of a report compliant with ISO requirements. The application also supports STIPA speech intelligibility measurements.
SV971A IEC 61672 Sound Level Meter

How do you measure noise levels?

Follow measurement standards to measure sound pressure level

To provide sound pressure measurements follow measurement standards. Workplace noise measurements must follow ISO 9612, OSHA, MSHA, or ACGIH guidelines. Sound insulation measurements must follow ISO 16283, and speech transmission indexes for public address systems must be measured in accordance to IEC 60268.
measure sound levels

What is the most accurate sound meter?

The most accurate sound level meter is class 1

The most accurate sound level meters are those that comply with the IEC 61672 international standard, which states the specifications that sound level meters must meet to assure accuracy.
the most accurate sound level meter

Sound Level Meter Software

Firmware, Software for PC, and Mobile App

Sound level meter software is a package that includes firmware, software for PC, and a sound level meter app. The firmware is an internal program that performs measurements and results integration. Once the measurements results are downloaded to a PC, the software provides re-calculations and reporting. The sound level meter app is an extension of the user interface to the sound level meter, enabling users to utilize features of their smartphones such as bigger displays, touch screens, or photo images.
sound level meter software

Sound Level Meter for Classroom

Room Acoustics Parameters Measurements

A sound level meter for a classroom is a sound measuring device that meets IEC 61672 standards for accuracy and is capable of measuring room acoustics parameters such as reverberation time RT60 and speech intelligibility STIPA. The SV 971A is a sound level meter that can be used in a classroom. It meets IEC 61672 standards for accuracy and uses a sound level meter app for the measurement of room acoustics parameters such as reverberation time RT60 and speech intelligibility STIPA.
sound level meter for classroom

Class 1 Sound Level Meter

Applications

Occupational Noise

ISO, OSHA, MSHA, and ACGIH guidelines

The class 1 sound level meter new design meets an international standard IEC 61672 and ANSI/ASA S1.4 standards in the United States. It is accurate for noise measurements in line with ISO, OSHA, MSHA, and ACGIH standards for industrial hygiene noise measurements to prevent hearing loss. With a noise dose meter enabled, both noise dose and noise exposure are calculated.
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noise sampling

Sound Insulation

Sound insulation measurements following ISO 16283.

Along with the new hardware additions, the SV 971A has a new internal program that supports RT 60 reverberation time measurement and STIPA speech intelligibility measurements, both supported by a mobile application.
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building acoustics

STIPA Voice Level Meter

Speech transmission indexes for public address systems.

In organizing STIPA measurements and calculations, the meter is supported by a dedicated mobile application. The STIPA signal is usually reproduced by loudspeakers available in the public information system under study, and in some cases, dedicated loudspeakers are used.
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building acoustics measurements

Best Sound Level Meter

Videos

What is a Class 1 Sound Level Meter?

A Class 1 sound level meter is a sound level meter that meets IEC 61672 standards for accuracy. Take a look at the video and learn about the much more sophisticated instrument features of a professional class 1 sound level meter.

What can sound level meter be used for?

Sound level meters can be used for a variety of applications including industrial hygiene noise limits e.g. 90 dB, and environmental noise surveys. Discover how the SV 971A can measure from 27 to 137 dB (140 dB Peak) in a single range!

Sound Level Meter Price or Hire

Class 1 Sound Level Meter – SV 971A

Class 1 Sound Level Meter – SV 971A
The kit consists of SV 971A Class 1 sound level meter with detachable preamplifier SV 18A and new high quality omni-directional ACO SV 7152 microphone, compliant to IEC61094-4. The list of accessories includes: SA 22 windscreen, 32 GB microSD card, four AAA batteries, USB cable, and USB-DISC with user manual. Each SV 971A has its factory calibration certificate and 36 months warranty card.

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Open list

SF 971A_P2 - options package to SV 971A: RT60 and STIPA

SF 971A_P2 - options package to SV 971A: RT60 and STIPA

Firmware options package to SV 971A: RT60 reverberation time and STIPA. Both functions are supported by a mobile application for measurement of sound insulation in accordance with ISO 16283 and STIPA with IEC 60268.

SUPERVISOR Software

SUPERVISOR Software

PC Software dedicated for health and safety measurements instrumentation

SVANPC++EM - Environmental Module License

SVANPC++EM - Environmental Module License

The PC software module is designed for data post-processing from noise and vibration measurements. It provides all necessary functionalities for marking / removing / recalculation of the time-history records and presentation the calculated results in a form of reports (text, table and graphic forms).







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    SV 971A

    Specification

    Class 1 Sound Level Meter – SV 971A

    Applications

    Sound measurements
    Environmental noise
    Occupational noise
    Building acoustics

    Hardware Features

    Number of channels 1
    Self-vibration detection
    Auto-calibration
    Bluetooth
    Communication Interfaces USB, Bluetooth
    Display
    Keyboard 8 keys
    Memory uSD card 32 GB
    Battery type 4 x AAA
    Operating time 16-24 hours
    Operating temperature range -10 °C to 50 °C (14 °F to 122 °F)
    Humidity range up to 95 % RH, non-condensed
    Weight 225 grams
    Size 232.5 x 56 x 20 mm

    Sound measurements features

    Standards Class 1: IEC 61672-1:2013, Class 1: IEC 61260-1:2014
    Type approvals Pending
    Microphone type ACO 7152
    Preamplifier type SV 18A
    Linear operating range to IEC 61672 24 dBA Leq ÷ 140 dBA Peak
    Total measurement range 17 dBA Leq ÷ 140 dBA Peak
    Internal noise < 17 dBA Leq
    Frequency range 5 Hz ÷ 20 kHz
    Weighting filters Frequency weighting: A, B, C, Z, LF
    Time constants Time Weighting: Slow, Fast, Impulse
    Exchange rates 2, 3, 4, 5, 6
    Criterion levels adjustable
    Profiles per channel 3
    Min logging step 100 ms / 2 ms in RT60
    Statistics Ln (L1-L99)
    Statistics in octaves or third octaves
    Audio recording option
    Voice coments
    1/1 octave option
    1/3 octave option
    RT60 option
    STIPA option

    Sound Level Meter PDF and Software

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