【Product Application】

The noise spectrum analyzer is both a general-purpose sound level meter for measuring exponential time-weighted sound levels and an integrating averaging sound level meter for measuring time-averaged sound levels, as well as an integrating sound level meter for measuring sound exposure. It can also measure cumulative percentile sound levels (statistical sound levels). It is suitable for various industrial environmental noise measurements and environmental noise surveys, especially for spectral analysis of noise used in environmental, mechanical, transportation, marine, and other noise level measurements. It is applicable to industrial environmental protection, construction, health, education, scientific research, and other sectors.

【Product Features】

1. Its performance meets the requirements of GB/T 3785 and IEC 61672-2002 standards for Class 1 sound level meters, as well as JJG 188-2017 standards. It also complies with IEC 1260 and GB/T 3241-1998 for octave and 1/3 octave filters.

2. Equipped with built-in 1/1 octave and 1/3 octave filters. Supports manual and automatic sweep frequency measurements. Automatic sweep measurement data can be automatically saved in 12 groups.

3. Features integration and statistical functions, with single-group measurements supporting up to 800 groups and continuous measurements lasting up to 6 days. Stored data can be retrieved and printed. During paused continuous measurements, already collected data can be reviewed.

4. Time weighting includes three settings: Fast (F), Slow (S), and Impulse (I).

5. Utilizes digital detection technology, replacing some traditional sound level meters, significantly improving stability and reliability.

6. Features a large screen display for clear and intuitive viewing. Includes dynamic scale display.

7. Supports optional Bluetooth printer for printing measurement data. Uses USB cable and Bluetooth data output for communication with PC.

【Product Parameters】

Frequency Range:DB30-6226F：10Hz~20kHz

               DB30-6228F：20Hz~8kHz

Microphone: Φ12.7mm (1/2") test condenser microphone
Frequency Weighting: A-weighting, C-weighting, Lin (linear)
Measurement Range:  25dB~130dB(A)
Range Control: Automatic/Manual, three ranges, linear range greater than 60dB

Range Scope:
 30dB~90dB (dynamic scale display 10-100)
 50dB~110dB (dynamic scale display 30~120)

70dB~130dB (dynamic scale display 50~140)

Instrument Accuracy: Complies with IEC 61672 standard, DB30-6226F Class 2; DB30-6228F Class 1

Time Weighting:  Fast (F), Slow (S), and Impulse (I)

Filter: Built-in 1/1 and 1/3 octave filters

Display: Large dynamic LCD screen, instantaneous sound level, with analog meter display.

Output Interface:  AC output, USB interface

Power Supply:  5 AA batteries
External Power Supply: 6V
Dimensions: 270x90x32mm
Operating Conditions: -10~50°C