SLM130 Digital Sound Level Meter (measuring sound range 30 - 130dB)
SLM130
SLM130
A Sound Level Meter is an instrument used to measure the intensity of sound in decibels (dB), providing a quantitative way to evaluate noise levels in different environments. This device is commonly used in fields such as environmental health, occupational safety, audio engineering, and industrial noise control to ensure compliance with noise regulations and maintain safe sound levels.
- Fast(2 time/sec) /slow(1 time/sec) display
- With back light
- Real-time and Max/Min measurement
- High limits setting with judgement and alarm
Benefits:
- Accurate and Reliable: Provides precise sound measurements, which are essential for regulatory compliance and for maintaining safe and comfortable environments.
- Portable and User-Friendly: Most sound level meters are compact and lightweight, making them easy to carry for field measurements. They often have simple interfaces that require minimal training.
- Versatile Usage: With adjustable settings and frequency weightings, sound level meters are suitable for various applications, from quiet environments like libraries to loud industrial settings.
A sound level meter is an essential tool for professionals who need to monitor and control noise levels in order to protect hearing, comply with regulations, or ensure optimal sound quality. It provides a reliable and convenient way to assess sound intensity across a range of environments.
Key Features:
- Decibel Measurement: Sound level meters measure sound pressure levels, typically in the range of 30 dB (quiet environments) to 130 dB (very loud environments), with some models capable of measuring even wider ranges.
- Frequency Weighting Options: Most sound level meters include frequency weighting settings, such as A-weighting (dBA), which approximates human hearing sensitivity, and C-weighting (dBC), which captures low-frequency sounds.
- Digital Display: The device usually features a digital LCD or LED screen that displays real-time sound level readings in decibels, often with additional information such as maximum, minimum, and average sound levels.
- Data Logging and Storage: Advanced models allow for data logging and can store multiple readings for analysis, often with USB or Bluetooth connectivity for data transfer to other devices.
- Microphone Sensitivity: Sound level meters are equipped with a sensitive microphone, typically condenser-type, that accurately captures sound levels. The quality and sensitivity of the microphone affect the accuracy and range of measurements.
How It Works:
- Turn On and Calibrate: Power on the sound level meter and, if necessary, calibrate it using a sound level calibrator to ensure accurate measurements. Calibration may involve adjusting to a known sound level.
- Select Weighting and Response Settings: Choose the appropriate frequency weighting (e.g., A-weighting for general environmental noise) and response time (fast or slow) based on the application. Fast response is suitable for fluctuating noise, while slow response averages the sound over a longer period.
- Measure Sound Levels: Hold the meter at arm’s length and point the microphone toward the sound source. The device will capture the sound pressure level and display the reading on the screen.
- Record and Analyze Data: If using a data-logging meter, store or download the measurements for further analysis, such as determining noise exposure over time or comparing levels in different areas.
Applications:
- Environmental Noise Monitoring: Used by environmental agencies to monitor and regulate noise pollution in urban, industrial, and residential areas.
- Occupational Health and Safety: Helps assess noise exposure in workplaces to ensure compliance with safety standards, protecting workers from hearing damage.
- Audio Engineering: Assists sound engineers in setting up audio equipment and managing sound levels in live events, recording studios, and other audio environments.
- Construction and Industrial Sites: Measures noise levels generated by machinery and equipment, enabling site managers to implement noise control measures.
- Community and Recreational Events: Ensures sound levels at events, concerts, and public gatherings are within acceptable limits to minimize disturbance.
Technical Specifications
Settings And Functions of Digital Sound Level Meter