| Resolution | 1 dB |
| Frequency range | 32 kHz |
| Octave filter | 1 to 61,260 s |
Sound level meter
With a sound level meter, the sound pressure can be recorded and evaluated. The level values are given in decibels (dB).
The sound pressure is recorded with the aid of a microphone. It is converted into an electrical voltage.
A range switch of the sound level meter is responsible for forwarding the voltage to an integrated detector and for the display. The display of the measurement data is done with the help of digits or analog pointers.
Many devices are able to detect even a short-term sound pressure peak. This type of measurement is called peak measurement.
... Read more
The sound pressure is recorded with the aid of a microphone. It is converted into an electrical voltage.
A range switch of the sound level meter is responsible for forwarding the voltage to an integrated detector and for the display. The display of the measurement data is done with the help of digits or analog pointers.
Many devices are able to detect even a short-term sound pressure peak. This type of measurement is called peak measurement.
... Read more
1 - 7
| Frequency range | 125 to 10,500 Hz |
| Additional measurement possibilities | Frequency |
| Device-internal documentation options | Written memos Photo memo |
| Frequency range | 250 to 10,500 Hz |
| Additional measurement possibilities | Frequency |
| Device-internal documentation options | Written memos Photo memo |
| Frequency range | 700 to 10,500 Hz |
| Additional measurement possibilities | Frequency |
| Device-internal documentation options | Written memos Photo memo |
| Noise level range | 30 to 130 dB |
| Frequency range | 31.5 Hz |
| Frequency weighting | A C |
| Resolution | 0.1 dB |
| Noise level range | 30 to 130 dB |
| Frequency range | 31.5 Hz |
| Noise level range | 37 to 140 dB |
| Frequency weighting | A C Z |
| Time constant | Slow Fast Pulse Show all Peak TWA |
Sound level meters are used in various areas, such as industry, construction and environmental protection. They help to monitor the noise level and ensure that the applicable regulations are complied with, and modern sound level meters are equipped with various functions that enable accurate measurement. They have a digital display that shows the current sound pressure level in real time. They can also calculate the average sound level over a certain period of time. A sound level meter consists of a microphone that picks up the sound pressure, an amplifier that amplifies the signal and a display that shows the sound pressure level. Some models also have a data storage function that allows the measurement results to be saved and analyzed later.sound level meters are important tools for monitoring and controlling noise exposure in different environments. They help to protect people's health and well-being and contribute to compliance with legal regulations.
What is a sound level meter and how does it work?
A sound level meter, also known as a noise level meter, is an instrument used to measure the sound pressure level in a specific environment. It is mainly used to determine the noise level in industrial, working or residential areas.
The sound level meter consists of a microphone that picks up the sound, an amplifier that amplifies the signal and a display unit that shows the sound level in decibels (dB). The microphone picks up the sound and converts it into an electrical signal. This signal is then amplified by the amplifier to accurately measure the sound pressure level.
The sound level meter display can be either digital or analog. Digital display devices show the sound level on a screen, while analog devices use a scale with numbers and a pointer.
The sound level is measured in decibels, with 0 dB corresponding to the hearing threshold of the human ear. A sound level meter measures the sound pressure level in dB(A), where the "A" stands for the weighting curve that simulates the sensitivity of human hearing. This weighting curve takes into account the different perception of sound frequencies by the human ear.
To carry out accurate measurements, the sound level meter must be calibrated. This is usually done with a calibrator that generates a known sound pressure level to ensure that the sound level meter provides correct measurements.
Overall, a sound level meter is an important tool for monitoring noise levels in different environments and ensuring that sound exposure does not exceed certain limits that are important for people's health and well-being.
The sound level meter consists of a microphone that picks up the sound, an amplifier that amplifies the signal and a display unit that shows the sound level in decibels (dB). The microphone picks up the sound and converts it into an electrical signal. This signal is then amplified by the amplifier to accurately measure the sound pressure level.
The sound level meter display can be either digital or analog. Digital display devices show the sound level on a screen, while analog devices use a scale with numbers and a pointer.
The sound level is measured in decibels, with 0 dB corresponding to the hearing threshold of the human ear. A sound level meter measures the sound pressure level in dB(A), where the "A" stands for the weighting curve that simulates the sensitivity of human hearing. This weighting curve takes into account the different perception of sound frequencies by the human ear.
To carry out accurate measurements, the sound level meter must be calibrated. This is usually done with a calibrator that generates a known sound pressure level to ensure that the sound level meter provides correct measurements.
Overall, a sound level meter is an important tool for monitoring noise levels in different environments and ensuring that sound exposure does not exceed certain limits that are important for people's health and well-being.
What types of sound level meters are there and what are they used for?
There are different types of sound level meters that are used depending on the area of application:
1. Classic sound level meters: These devices measure the sound pressure level in decibels (dB). They are often used in industry, construction and environmental protection to monitor noise levels and ensure that they are within legal limits.
2. Integrating sound level meters: These devices not only measure the sound pressure level, but also integrate the measured values over a certain period of time to determine the average sound level or noise exposure. They are often used to monitor noise levels in residential areas, schools or other public spaces.
3. Frequency-weighted sound level meters: These devices record the sound pressure level, but also take into account the varying sensitivity of human hearing in different frequency ranges. You use a frequency weighting curve, e.g. A, B or C weighting, to correct the sound level and achieve a better match with the subjective perception of the noise. They are often used in occupational safety to assess the noise level at the workplace.
4. Sound level meter with octave band analysis: These devices measure the sound pressure level in different octave bands in order to determine the contribution of individual frequency ranges to the overall noise exposure. They are often used in room acoustics, for the sound characterization of machines or in music production.
5. Sound level meter with spectral analysis: These devices record the sound pressure level in real time over a wide frequency range and display the result graphically. They can be used for detailed analysis and identification of noise sources, for example for fault diagnosis in machines or for monitoring ambient noise in research.
It is important to note that the use of sound level meters depends on the specific requirements and standards in different industries. It is advisable to consult the relevant regulations and guidelines in order to select the most suitable sound level meter for a particular application.
1. Classic sound level meters: These devices measure the sound pressure level in decibels (dB). They are often used in industry, construction and environmental protection to monitor noise levels and ensure that they are within legal limits.
2. Integrating sound level meters: These devices not only measure the sound pressure level, but also integrate the measured values over a certain period of time to determine the average sound level or noise exposure. They are often used to monitor noise levels in residential areas, schools or other public spaces.
3. Frequency-weighted sound level meters: These devices record the sound pressure level, but also take into account the varying sensitivity of human hearing in different frequency ranges. You use a frequency weighting curve, e.g. A, B or C weighting, to correct the sound level and achieve a better match with the subjective perception of the noise. They are often used in occupational safety to assess the noise level at the workplace.
4. Sound level meter with octave band analysis: These devices measure the sound pressure level in different octave bands in order to determine the contribution of individual frequency ranges to the overall noise exposure. They are often used in room acoustics, for the sound characterization of machines or in music production.
5. Sound level meter with spectral analysis: These devices record the sound pressure level in real time over a wide frequency range and display the result graphically. They can be used for detailed analysis and identification of noise sources, for example for fault diagnosis in machines or for monitoring ambient noise in research.
It is important to note that the use of sound level meters depends on the specific requirements and standards in different industries. It is advisable to consult the relevant regulations and guidelines in order to select the most suitable sound level meter for a particular application.
Which unit is used to measure the sound level and what does it mean?
The unit for measuring the sound level is the decibel (dB). The decibel is a logarithmic unit that describes the ratio of the measured sound level to the reference value. The reference value for the sound level is usually the sound pressure level of 0.00002 Pascal, which is defined as the hearing threshold of the human ear. An increase of 10 dB corresponds to a doubling of the sound pressure, while a decrease of 10 dB corresponds to a halving of the sound pressure. The sound level is used to measure the volume of noises and sounds.
How accurate are sound level meters and what factors can influence measurement accuracy?
Sound level meters are devices that measure the sound pressure level in the environment. They consist of a microphone, an amplifier and a display unit to show the measured sound level.
The accuracy of a sound level meter is influenced by several factors:
1. Calibration: Sound level meters must be calibrated regularly to ensure that they provide correct readings. Incorrect calibration can lead to inaccurate measurement results.
2. Frequency range: Sound level meters normally have a limited frequency range in which they can measure. Outside this range, they may provide inaccurate or distorted readings.
3. Microphone sensitivity: The sensitivity of the microphone can influence the measurement accuracy. A microphone with low sensitivity may not pick up quiet sounds accurately, while a microphone with high sensitivity may be too sensitive to background noise.
4. Ambient conditions: The environment in which the sound level meter is used can influence the measurement accuracy. Wind, temperature or humidity can affect the microphone and lead to inaccurate measurements.
5. Interfering signals: Interfering noises or vibrations can affect the measuring accuracy. These can be caused, for example, by other machines or devices in the vicinity of the measuring device.
It is important that sound level meters are regularly maintained and calibrated to ensure accurate measurements. They should also be used under suitable ambient conditions in order to minimize interference with the measurements.
The accuracy of a sound level meter is influenced by several factors:
1. Calibration: Sound level meters must be calibrated regularly to ensure that they provide correct readings. Incorrect calibration can lead to inaccurate measurement results.
2. Frequency range: Sound level meters normally have a limited frequency range in which they can measure. Outside this range, they may provide inaccurate or distorted readings.
3. Microphone sensitivity: The sensitivity of the microphone can influence the measurement accuracy. A microphone with low sensitivity may not pick up quiet sounds accurately, while a microphone with high sensitivity may be too sensitive to background noise.
4. Ambient conditions: The environment in which the sound level meter is used can influence the measurement accuracy. Wind, temperature or humidity can affect the microphone and lead to inaccurate measurements.
5. Interfering signals: Interfering noises or vibrations can affect the measuring accuracy. These can be caused, for example, by other machines or devices in the vicinity of the measuring device.
It is important that sound level meters are regularly maintained and calibrated to ensure accurate measurements. They should also be used under suitable ambient conditions in order to minimize interference with the measurements.
What legal regulations and standards are there for the use of sound level meters?
Various legal regulations and standards apply to the use of sound level meters, depending on the context and purpose for which they are used. Here are some important regulations and standards:
1. Occupational Health and Safety Act (ArbSchG): The Occupational Health and Safety Act regulates the protection of employees from noise hazards in the workplace. It stipulates that noise must be measured and assessed in order to determine possible health effects.
2. Noise and Vibration Occupational Health and Safety Ordinance (LärmVibrationsArbSchV): This ordinance specifies the requirements of the Occupational Health and Safety Act with regard to noise. It sets limit values for noise in the workplace and stipulates that sound level measurements must be carried out to check compliance with these limit values.
3. DIN EN 61672: The DIN EN 61672 standard specifies requirements for sound level meters. It defines the accuracy class and the technical requirements for the measuring devices.
4. DIN 45645: The DIN 45645 standard provides instructions for carrying out sound level measurements and evaluating the measured values. Among other things, it specifies how measurements are to be carried out, which measurement periods are to be used and how the results are to be evaluated.
5. Environmental Noise Directive (2002/49/EC): This EU directive lays down requirements for the assessment and control of environmental noise. It stipulates that sound level measurements must be carried out to determine noise pollution in residential areas, schools, hospitals and other sensitive areas.
This list is not exhaustive and further regulations and standards may apply depending on the area of application and country. It is important to find out about the specific regulations of the respective country and area of application.
1. Occupational Health and Safety Act (ArbSchG): The Occupational Health and Safety Act regulates the protection of employees from noise hazards in the workplace. It stipulates that noise must be measured and assessed in order to determine possible health effects.
2. Noise and Vibration Occupational Health and Safety Ordinance (LärmVibrationsArbSchV): This ordinance specifies the requirements of the Occupational Health and Safety Act with regard to noise. It sets limit values for noise in the workplace and stipulates that sound level measurements must be carried out to check compliance with these limit values.
3. DIN EN 61672: The DIN EN 61672 standard specifies requirements for sound level meters. It defines the accuracy class and the technical requirements for the measuring devices.
4. DIN 45645: The DIN 45645 standard provides instructions for carrying out sound level measurements and evaluating the measured values. Among other things, it specifies how measurements are to be carried out, which measurement periods are to be used and how the results are to be evaluated.
5. Environmental Noise Directive (2002/49/EC): This EU directive lays down requirements for the assessment and control of environmental noise. It stipulates that sound level measurements must be carried out to determine noise pollution in residential areas, schools, hospitals and other sensitive areas.
This list is not exhaustive and further regulations and standards may apply depending on the area of application and country. It is important to find out about the specific regulations of the respective country and area of application.
How can a sound level meter be used to measure noise exposure in different environments?
A sound level meter can be used to measure noise exposure in various environments by measuring the sound pressure level and thus determining the volume of the ambient noise. Here are some examples of how a sound level meter can be used:
1. Workplace measurements: A sound level meter can be used to measure the noise level at workplaces and ensure that it is within the legal limits. This is particularly important in areas where noise can pose a potential risk to the health and safety of workers.
2. Traffic noise: A sound level meter can be used to measure the noise level on busy roads, highways or airports. These measurements can help to assess the impact of traffic noise on the surrounding residential and working areas and to take appropriate noise protection measures.
3. Living areas: A sound level meter can be used to monitor noise levels in residential areas and ensure that they are within acceptable limits. This is particularly important in densely populated urban areas where noise can be a frequent nuisance.
4. Events: A sound level meter can be used to measure the noise level at events such as concerts, sporting events or festivals. This can help to ensure that the noise level is not harmful to health and still provides an appropriate level of entertainment and activity.
5. Industrial plants: A sound level meter can be used to monitor noise levels in industrial facilities and ensure that they comply with legal regulations and standards. This is important to ensure the health and safety of workers and to minimize the impact of noise on the surrounding environment.
In all these environments, a sound level meter can help to objectively measure noise levels, collect data and provide a basis for making decisions to reduce noise or protect health and safety.
1. Workplace measurements: A sound level meter can be used to measure the noise level at workplaces and ensure that it is within the legal limits. This is particularly important in areas where noise can pose a potential risk to the health and safety of workers.
2. Traffic noise: A sound level meter can be used to measure the noise level on busy roads, highways or airports. These measurements can help to assess the impact of traffic noise on the surrounding residential and working areas and to take appropriate noise protection measures.
3. Living areas: A sound level meter can be used to monitor noise levels in residential areas and ensure that they are within acceptable limits. This is particularly important in densely populated urban areas where noise can be a frequent nuisance.
4. Events: A sound level meter can be used to measure the noise level at events such as concerts, sporting events or festivals. This can help to ensure that the noise level is not harmful to health and still provides an appropriate level of entertainment and activity.
5. Industrial plants: A sound level meter can be used to monitor noise levels in industrial facilities and ensure that they comply with legal regulations and standards. This is important to ensure the health and safety of workers and to minimize the impact of noise on the surrounding environment.
In all these environments, a sound level meter can help to objectively measure noise levels, collect data and provide a basis for making decisions to reduce noise or protect health and safety.
What functions and attributes should a modern sound level meter have in order to meet the requirements of different applications?
A modern sound level meter should have various functions and attributes to meet the requirements of different applications. Here are some important functions and attributes that a modern sound level meter should have:
1. Wide frequency range: The sound level meter should be able to measure the sound pressure level over a wide frequency range to detect different types of noise.
2. High accuracy: The sound level meter should have a high degree of accuracy in order to be able to carry out precise measurements. High accuracy is particularly important in areas such as industry, environmental protection and occupational safety.
3. Adjustable time ratings: The sound level meter should offer different time weightings, such as long-term weighting (LAEQ) and peak weighting (Peak), to measure the sound level over different time periods.
4. Data logging function: A modern sound level meter should be able to record measurement data over a certain period of time. This function makes it possible to analyze the sound level curve and identify trends.
5. Spectrum analysis: The sound level meter should have a spectrum analysis function to analyze the sound pressure level in different frequency bands. This is particularly useful for identifying the source of noise and taking targeted measures to reduce it.
6. USB or wireless connectivity: A modern sound level meter should have USB or wireless connectivity to enable data transfer to a computer or mobile device. This facilitates data analysis and reporting.
7. Robust housing: The sound level meter should have a robust housing that is shock-resistant and water-repellent. This allows it to be used in various environments, including construction sites, factories and outdoors.
8. Battery operation: A modern sound level meter should have a powerful rechargeable battery that enables a long operating time. This is particularly important to ensure continuous monitoring over a longer period of time.
9. User-friendly interface: The sound level meter should have a user-friendly interface that allows easy operation and configuration. A clear display and intuitive menu navigation are particularly important here.
10. Calibration option: A modern sound level meter should offer the possibility of regular calibration in order to maintain measurement accuracy.
These functions and attributes are just a few examples and can vary depending on the area of application and individual requirements.
1. Wide frequency range: The sound level meter should be able to measure the sound pressure level over a wide frequency range to detect different types of noise.
2. High accuracy: The sound level meter should have a high degree of accuracy in order to be able to carry out precise measurements. High accuracy is particularly important in areas such as industry, environmental protection and occupational safety.
3. Adjustable time ratings: The sound level meter should offer different time weightings, such as long-term weighting (LAEQ) and peak weighting (Peak), to measure the sound level over different time periods.
4. Data logging function: A modern sound level meter should be able to record measurement data over a certain period of time. This function makes it possible to analyze the sound level curve and identify trends.
5. Spectrum analysis: The sound level meter should have a spectrum analysis function to analyze the sound pressure level in different frequency bands. This is particularly useful for identifying the source of noise and taking targeted measures to reduce it.
6. USB or wireless connectivity: A modern sound level meter should have USB or wireless connectivity to enable data transfer to a computer or mobile device. This facilitates data analysis and reporting.
7. Robust housing: The sound level meter should have a robust housing that is shock-resistant and water-repellent. This allows it to be used in various environments, including construction sites, factories and outdoors.
8. Battery operation: A modern sound level meter should have a powerful rechargeable battery that enables a long operating time. This is particularly important to ensure continuous monitoring over a longer period of time.
9. User-friendly interface: The sound level meter should have a user-friendly interface that allows easy operation and configuration. A clear display and intuitive menu navigation are particularly important here.
10. Calibration option: A modern sound level meter should offer the possibility of regular calibration in order to maintain measurement accuracy.
These functions and attributes are just a few examples and can vary depending on the area of application and individual requirements.