Overview
The DUBAN DB30-6228I pulse sound level meter is a multi-functional noise measuring instrument that can be used as a general-purpose sound level meter for measurement of exponential time weighted sound level, as an integrated average sound level meter for measurement of time average sound level, and an integrated sound level meter for measurement of sound exposure, as well as measurement of cumulative percent sound level (statistical sound level). The instrument is widely used in various industrial environment noise measurement and environment noise census measurement.
Features
1.The performance meets the requirements of GB/T 3785, IEC 61672-2002 standard for 2-level sound level meter and JJG 188-2017 standard
2. With integration and statistical functions, a single measurement can store up to 800 sets of data, continuous measurement up to 6 days
3. Provide fast (F) and slow (S) two time weighting gear options
4. Adopt Digital Detection Technology to Significantly Improve Stability and Reliability
5. Equipped with large screen display, clear and intuitive information, support dynamic scale display
6. Optional to use Bluetooth printer for measurement data printing
7. Support data output via USB cable and Bluetooth, easy to communicate with PC for data transmission and analysis
Principle
The pulse sound level meter uses digital detection technology to replace the traditional sound level meter. The sound signal is collected by testing the condenser microphone, and processed by frequency weighing (A weighing, C weighing, Lin linear) and time weighing (fast, slow and pulse). Accurate measurement and data analytics of sound level are realized.
Applications
Industrial environment noise measurement, environment noise census measurement, noise spectrum analysis, environment, machinery, transportation, ships, industrial environmental protection, construction, teaching and research
Standards
GB/T 3785、IEC 61672-2002、JJG 188-2017、IEC61672
Steps
1. Select the appropriate time weighting gear (fast F or slow S)
2. Set range control (automatic range or manual in three gears)
3. Perform noise measurements
4. Store measurement data (up to 800 sets at a time)
5. Accessing and printing stored data
6. Output data to PC for analysis via USB cable or Bluetooth
Notice
• Ensure that the instrument meets relevant standards before use
• Measurement range: 30dB~ 90dB, 50dB~ 110dB, 70dB~ 130dB
• The operating environment temperature should be in the range of -10~ 50 ℃
• The power supply uses 5 AA batteries or 5V external power supply
• Check the collected data when the measurement is suspended
• Make sure the microphone (φ 12.7mm test capacitor microphone) works normally
• Frequency range: 20Hz-8kHz
