Overview
DB30-6228F noise spectrum analyzer is a general-purpose sound level meter, which can measure exponential time weighted sound level, time average sound level, sound exposure and cumulative percentage sound level. It is suitable for industrial environment noise measurement, environment noise census and noise spectrum analysis. It is widely used in environment, machinery, transportation, ships and other fields, serving industrial environmental protection, construction, health, teaching and research and other departments.
Features
1. The performance meets the requirements of GB/T 3785, IEC 61672-2002 standards for 2-level sound level meters, and JJG 188-2017, IEC1260 and GB/T 3241-1998 standards for octave filters.
2. Built-in 1/1 octave and 1/3 octave filters, support manual and automatic sweep measurement, automatic sweep data can save 12 groups.
3. With integral and statistical functions, a single group of measurement up to 800 groups, the whole time measurement up to 6 days, data can be accessed and printed.
4. Time weighting provides three gear options: fast (F), slow (S), and pulse (I).
5. Adopt Digital Detection Technology to Improve Stability and Reliability.
6. Large screen display, clear and intuitive, with dynamic scale display.
7. Optional Bluetooth printer for data printing.
8. Use USB cable and Bluetooth data output to communicate with PC.
Principle
The analyzer collects sound signals through built-in test condenser microphones, and applies digital detection technology to process the signals to realize sound level measurement. It supports multiple Frequency Weighting (A, C, Linear) and Time Weighting (Fast, Slow, Pulse), and uses built-in octave filters for spectral analysis. Data is processed and stored through integration and statistical functions.
Applications
Environment, machinery, transportation, shipbuilding, industrial environmental protection, construction, health, teaching and research
Standards
GB/T 3785、IEC 61672-2002、JJG 188-2017、IEC1260、GB/T 3241-1998
Steps
1. Turn on the instrument and select the range control mode (automatic or manual).
2. Set the time weighting gear (fast, slow, or pulse).
3. Select Frequency Weighting (A, C, or Linear) and Filter Mode (1/1 or 1/3 Octave).
4. Perform manual or automatic sweep measurement, and the data is automatically saved.
5. Use integral and statistical functions for data collection and storage.
6. Connect to the PC via USB or Bluetooth to access or print data.
Notice
• Make sure the power supply is sufficient before use, you can use 5 AA batteries or an external 5V power supply.
• Operating ambient temperature range is -10~ 50 ℃.
• Avoid use in extreme environments to prevent affecting Measurement accuracy.
• Regularly calibrate instruments to ensure compliance with relevant standards.
• Ensure stable USB or Bluetooth connection when data output.
