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Class 1 Sound & Vibration Level Meter

SV 977

The SV 977D is a Class 1 Sound and Vibration meter designed for building acoustics, occupational noise and environmental noise measurements. The meter is a successor of SVAN 977A offering new 1/2” microphone MK255 offering wide frequency range from 3 Hz and excellent long-time stability of sensitivity.  The SV 977D has a built-in Bluetooth® interface for wireless connection with with smart-phone applications like Building Acoustics Assistant that extends measurement capabilities dedicated for building acoustics.

One unique feature of the SV 977D is ultrasound measurement band up to 40 kHz. The ultrasound band is normally considered as the frequency range above 20 kHz. Ultrasound is used in a number of industrial processes such as cleaning, drilling or welding as well as hospitals for medical procedures.

The SV 977D can be also used as the vibration level meter – simply by connecting a cable and a vibration sensor.

New generation sound level meters

The new SV 973 class 2 sound level meter, and the SV 971A class 1 sound level meter are two new generation models that comply with IEC 61672. They have a small size and weight as well as improved application compatibility via mobile apps, which is their main feature.

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Catalogue

Precision Measurements for Building Acoustics and Environmental Noise

The SV 977D offers unparalleled accuracy and versatility with its wide frequency range and advanced analysis capabilities, making it the ideal choice for professionals in building acoustics and environmental noise monitoring. Explore its extensive technical specifications and applications to enhance your measurement precision and efficiency.
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sv977 catalogue

Main

Features

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1/1 and 1/3 octave on board!

frequency analysis, ultrasounds, wave recording

FREQUENCY ANALYSIS of the signal in 1/1 or 1/3 octave bands allows to determine the influence of high or low frequencies on overall values. With an optional microphone SV 977D provides analysis of the ULTRASOUNDS up to 40 kHz. The ultrasound band is normally considered as the frequency range above 20 kHz. Limits of permissible ultrasound levels are usually expressed in terms of Leq and Max values specified in 1/3 octave bands for 20 kHz, 25 kHz, 31.5 kHz and 40 kHz. SV 977D also offers options for time domain signal recording - recording the raw signal samples with defined frequency up to 48 kHz. Post-processing of high quality wave files (48 kHz, 24 bit) such as calculation of tonality is available in SvanPC++ program.
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Class 1 Sound and Vibration Level Meter

Precision in accordance with IEC 61672-1:2013

The SV 977 Sound Level Meter meets class specifications for sound level meters in accordance to IEC 61672-1:2013. The meter uses detachable preamplifier and high quality omni-directional microphone, compliant to IEC61094-4. The wide linear operating range in accordance to IEC 61672 starts from 23 dBA. The meter works in temperatures from -10 °C to 50 °C. Following IEC 61672 the performance class of a sound level meter can be verified in periodic tests in accordance to IEC 61672-3.
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Remote Communication

Bluetooth® interface for mobile application

The built-in Bluetooth® interface in SV 977 Sound Level Meter together with smartphone application, extends measurement capabilities with all the features offered by smartphones. The smartphone application helps the user to preview results in the form of time-history plots as well as numerical values. The size of the display of a mobile device makes it convenient to display spectrum views such as 1/3 octave analysis. For building acoustics, smartphone application helps the user in calculating the insulation in accordance with ISO 16283. Sound insulation results are presented on the display and in the form of a report compliant with the ISO requirements.
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1/1 and 1/3 octave on board!

frequency analysis, ultrasounds, wave recording

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sv977d-precision-in-accordance-with-iec61672

Class 1 Sound and Vibration Level Meter

Precision in accordance with IEC 61672-1:2013

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sv977d-remote-communication

Remote Communication

Bluetooth® interface for mobile application

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Main

Applications

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Occupational Noise

Noise measurements at work places

SV 977D can be used for measuring workers’ exposure to noise in a working environment in accordance to international and local standards such as ISO, OSHA etc. The instrument provides A-weighted and C-weighted levels as well as audio recording for noise sources recognition and 1/1 octave for selection of hearing protectors. The evaluation of results is supported by dedicated Supervisor software, that provides with ready reporting templates. Additional advantage is the ultrasound measurement capability that is used in a number of industrial processes such as cleaning, drilling or welding as well as hospitals for medical procedures
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Building Acoustics

Measurement of acoustic insulation

SV 977D records the time history of spectra with millisecond accuracy which enables the calculation of RT60 results as well as calculation of sound insulation results. The mobile application Assistant supports sound level meters with the Bluetooth® interface and helps the user in calculating the insulation in accordance with ISO 16283. A project containing measurements from the source and receiving rooms for different sound source positions is created during the measurement. The project is saved in the memory of the sound meter along with the measurement files.
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Environmental noise

Upgrade to a monitoring station

SV 977D Class 1 sound level meter can be installed in a IP 65-rated case for outdoor noise measurements. The light-weight microphone protection kit can be easily installed on a mast with standard mounting threads. The case-type monitoring station uses a 4G modem for the remote communication with Internet. SvanNET, a connectivity service, supports the connection between PC and station. The SvanNET allows the usage of all types of SIM cards with the system, regardless if they have public or private IP. The connection over the SvanNET allows users to use a mobile phone or tablet to check the status of the noise monitoring station. Station supports an optional METEO module for assessment of weather conditions such as wind speed and direction, temperature, humidity, ambient pressure or rainfall.
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Occupational Noise

Noise measurements at work places

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Building Acoustics

Measurement of acoustic insulation

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Environmental noise

Upgrade to a monitoring station

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Product

Videos

SV 977 Overview

Learn about the main features of the SV 977 hardware

Vibration Level Meter

See how easy it is to use a SV 977 for measuring vibration

Building Acoustics Meter

Discover the mobile application for building acoustics measurements with SV 977

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SV 977 – Class 1 Sound & Vibration Level Meter

SV 977 – Class 1 Sound & Vibration Level Meter

The kit consists of SV 977D Class 1 sound & vibration level meter with a detachable preamplifier SV 12L and high quality MK 255 microphone. The list of accessories includes: SA 143 carrying case, SA 22 windscreen, 32 GB microSD card, four AA batteries, USB cable, and USB-disc with user manual. Each SV  977D has its factory calibration certificate and 36 months warranty card upon product registration.

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SF977_4 - License of FFT analysis for SVAN 977

SF977_4 - License of FFT analysis for SVAN 977

License of FFT analysis for SVAN 977

SF977_5 - Reverberation time analysis (RT60) option for SVAN 977

SF977_5 - Reverberation time analysis (RT60) option for SVAN 977

Reverberation time analysis (RT60) option for SVAN 977

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    I declare that I have been informed that my data may be transferred to entities that process personal data on behalf of the Administrator, in particular to distributors - such entities process data on the basis of an agreement with the Administrator and exclusively in accordance with its instructions. In such cases, the Administrator requires third parties to maintain the confidentiality and security of information and verifies that they provide appropriate measures to protect personal data.

    Some of the entities processing personal data on behalf of the Administrator are established outside the EEA. In connection with the transfer of your data outside the EEA, the Administrator verifies that these entities provide guarantees of a high level of personal data protection. These guarantees stem in particular from the obligation to apply the standard contractual clauses adopted by the Commission (EU). You have the right to request a copy of the standard contractual clauses by sending a request to the Controller.

    I declare that I have been informed on my right to withdraw my consent to the processing of my personal data at any time, to access the provided personal data, to rectify, erase, restrict processing and object to the processing of my data, as well as the right to lodge a complaint with the President of the of the Personal Data Protection Office in the event of an infringement of the provisions of GDPR.










      Products in the enquiry (1)

      Please select desired dates:

      I hereby consent to the processing of my personal data, i.e. my full name and e-mail address, by SVANTEK SP. Z O.O. with its registered office in Warsaw at ul. Strzygłowska 81 for the purpose of receiving marketing information on the products and services offered by SVANTEK SP. Z O.O. via electronic means of communication, in particular via e-mail, in accordance with the provisions of Article 10 sec. 1 and 2 of the Act on providing services by electronic means.

      I hereby consent to the processing of my personal data, i.e. my full name and phone number, by SVANTEK SP. Z O.O. with its registered office in Warsaw at ul. Strzygłowska 81 for the purpose of marketing activities with the use of telecommunications terminal equipment and automatic calling machines within the meaning of the Telecommunications Act.


      I declare that I have been informed that my data may be transferred to entities that process personal data on behalf of the Administrator, in particular to distributors - such entities process data on the basis of an agreement with the Administrator and exclusively in accordance with its instructions. In such cases, the Administrator requires third parties to maintain the confidentiality and security of information and verifies that they provide appropriate measures to protect personal data.

      Some of the entities processing personal data on behalf of the Administrator are established outside the EEA. In connection with the transfer of your data outside the EEA, the Administrator verifies that these entities provide guarantees of a high level of personal data protection. These guarantees stem in particular from the obligation to apply the standard contractual clauses adopted by the Commission (EU). You have the right to request a copy of the standard contractual clauses by sending a request to the Controller.

      I declare that I have been informed on my right to withdraw my consent to the processing of my personal data at any time, to access the provided personal data, to rectify, erase, restrict processing and object to the processing of my data, as well as the right to lodge a complaint with the President of the of the Personal Data Protection Office in the event of an infringement of the provisions of GDPR.

      ]

      Product

      Specification

      SV 977 – Class 1 Sound & Vibration Level Meter

      Applications

      Sound measurements
      Occupational noise
      Building acoustics
      Machine vibration

      Hardware Features

      Number of channels 1
      Auto-calibration
      Remote communication
      Bluetooth
      GPS module
      Communication Interfaces USB-C, I/O, RS232, Bluetooth 5.2
      Display
      Keyboard 9 keys
      Memory uSD 32 GB
      Battery type AA
      Operating time 12-16 hours
      Operating temperature range -10 °C to 50 °C
      Humidity range up to 90 % RH, non-condensed
      Weight 600 grams
      Size 343 x 79 x 39 mm

      Sound measurements features

      Standards Class 1: IEC 61672-1:2013, Class 1: IEC 61260-1:2014
      Type approvals approved according to WELMEC requirements
      Microphone type Microtech Gefell MK 255
      Preamplifier type SV 12L
      Linear operating range to IEC 61672 23 dBA Leq÷140 dBA Peak
      Total measurement range 16 dBA Leq÷140 dBA Peak
      Internal noise <16 dB LAeq
      Frequency range 3 Hz ÷ 20 kHz
      Weighting filters A, B, C, Z, LF, U, AU
      Time constants Slow, Fast, Impulse
      Profiles per channel 3
      Min logging step 2 ms
      Statistics Ln (L1-L99)
      Statistics in octaves or third octaves
      Audio recording option
      1/1 octave
      1/3 octave
      FFT option
      RT60 option
      STIPA option
      RPM option

      Vibration measurement features

      Standards ISO 20816
      Number of channels 1
      Sensor type IEPE
      1/1 octave
      1/3 octave
      WAV recording option
      FFT option
      RPM option

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