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.
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.
1/1 and 1/3 octave on board!
frequency analysis, ultrasounds, wave recording
Class 1 Sound and Vibration Level Meter
Precision in accordance with IEC 61672-1:2013
Remote Communication
Bluetooth® interface for mobile application
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.
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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Learn about the main features of the SV 977 hardware
See how easy it is to use a SV 977 for measuring vibration
Discover the mobile application for building acoustics measurements with SV 977
Select products for the enquiry
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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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SC 158 - USB-C to USB-A communication cable USB-C to USB-A communication cable |
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SA 22 - Windscreen for 1/2"" microphone (70 mm) Windscreen for 1/2" microphone (70 mm) |
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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... |
SV 977 – Class 1 Sound & Vibration Level Meter
Applications
Hardware Features
