Tel: +86-13302916851

China Shenzhen Baichuan electronics Co., LTD

Professional manufacturer of acoustic test instruments.


Sound Level Meter/Noise and vibration analysis system/

AWA6228+ Multifunction Sound Level Meter

■  A handhold noise-measuring instrument

■  Multifunction and user- friendly sound level meter(integrating SLM, 1/1 OCT, 1/3 OCT analyzer,  Noise dosimeter)

■  240×320 color screen

■  Measurement range 20~142dB

■  Synchronously do statistical, real-time 1/1 OCT, 1/3 OCT, and noise dosimeter measure

■  Comply with IEC 61672 Class 1 and IEC61260 Class 1 and IEC 61252

■  CE Mark

■  32G SD card function for precise audio recording, GPS positioning

  • Product Detail
  • Technical specifications
  • Product Uses
  • Can choose to install list
  • After-sales services

Model AWA6228+ Sound level meter is a new generation noise measurement instrument developed with digital signal processing technology, which is up-to-date product of the AWA6228 series.


Model AWA6228+ Multifunction Sound Level Meter
Fulfills Standards IEC 61672 Class 1, IEC 61260 Class 1, IEC61252:2002, IEC 60651:2001 Type 1,

IEC 60804: 2000 Type 1, ANSI S1.4: 1983 Type 1, ANSI S1.4A:1985 Type 1,

ANSI S1.43:1997 Type 1, ANSI S1.25:1991

Microphone + Preamplifier 1/2” pre-polarized condenser microphone+ Preamplifier (Sensitivity Level: -28dB)
Correction Function Diffusion field correction in order to comply with standards ANSI S1.4
Preamplifier AWA14601 removable preamplifier
Frequency Range 10 Hz ~ 20 kHz ± 1 dB (not including the microphone)
Total Measurement Range Low range: (20~132)dBA, (25-132)dBC, (30-132)dBZ

High range: (16~142)dBA, (35-142)dBC, (40-142)dBZ

Self-generated Noise <12 dB(A), 17 dB(C), 22 dB(Z)
Frequency Weighting Parallel (simultaneous) A, C, Z, B, D and user1&2-defined weighting
Time Weighting Parallel (simultaneous) F, S, I, Peak
A/D Bits 24 bits
Sampling Frequency 48 kHz
Calibration Using Sound Calibrator Class 1 model AWA6221A
Correction Function Diffusion field correction in order to comply with standards ANSI S1.4
Delay Time The meter can delay 0~99s after pressing the start measuring button
Back Erase Function Elimination of undesired noise; for example barking dogs, cars, doors
Display 240×320 color screen, adjustable brightness, the backlight can be closed
Display Resolution 0.1 dB
Low battery indication Symbols indicate low battery
Data Storage


SD card is optional)

◆ 3328 groups of integrating measuring results only.
◆ 3328 groups of statistical results only (‘statistical 1’ and ‘statistical 2’ analysis index are the same.)
◆ 2663 groups of statistical results only (‘statistical 1’ and ‘statistical 2’ analysis index are different.)
Print Mini-printer
Internal Clock Error less than 1 min/month
Output Interface AC Output (full scale): 1.0V AC RMS; Output Impedance: 1k Ω; Connector: φ3.5 mm stereo plug
DC Output: 20mV/dB; Output Impedance: 1k Ω; Connector: DB-9 plug
RS232 Interface: To computer for output some measurement results instantaneous values, also to mini-printer for printing

Transmission speed: 4800, 9600,115200 bps

USB Interface: available and no need device drive. Allow USB to be controlled via communication commands
Power Supply 4×LR6 alkaline battery or rechargeable batteries
5 V external power supply
Battery Life The longest time of 30 hours continuously with a 4×LR6 alkaline battery
Dimensions 260 (H) x 80 (W) x 30 (D), mm.
Weight 0.35 kg. (include batteries)
EMC Type X
Environment Working Temperature: -10 ~ 50 °C,

Storing Temperature: -20 ~ 70 °C,

Relative Humidity: 25 ~ 90 %

Accessories AC adaptor, USB cable, RS232 transmission cable, windscreen, hand strap, windscreen fall prevention rubber, carrying case, U-disk, user’s manual
Bluetooth Module Wireless printing

■  Comprehensive noise measurements

■  Environment noise certification

■  Noise profile measurement of industrial noise

■  Peak C sound level measurements

■  Impulse noise measurements

■  Workplace noise assessments

■  Industry boundary assessments

 Embedded Software Optional   Corresponding Functions
  S6228+ -10100 Integral software   The noise integral measuring
  S6228+ -10101 Statistics analytical software   The statistical analysis, 24 hours noise monitors automatically
  S6228+ -10202 The OCT analysis software    Noise real-time OCT spectral analysis
  S6228+ -10303 The 1/3 OCT analysis software    Noise real-time 1/3 OCT spectral analysis
  S6228+ -10404 The FFT analysis software    Noise real-time FFT spectral analysis
  S6228+ -00013 The Noise Dosimeter software    Noise dosimeter measuring
  S6228+ -00509 The Data Logging software    Do data logging
  S6228+ -00508 The Reverberation Time Measurement software    Reverberation Time Measurement
Other function
32G SD memory card & wave record Bluetooth function GPS positioning modular

20 years of industry experience

24-hour Technical Support

Professional engineers on line response

All life Costs Maintenance



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