AWA6228+ Class 1 Multifunction Sound Level Meter

The AWA6228+ is an advanced Class 1 multifunction sound level meter designed for professional environmental, industrial, occupational and acoustic noise measurement.

Unlike a fixed-function instrument, the AWA6228+ can be configured around your application. Start with professional Class 1 integrating measurement and add statistical analysis, octave analysis, FFT, data logging, sound recording, occupational noise measurement, GPS or reverberation functions as required.

This makes the AWA6228+ ideal for users who want advanced measurement capability without paying for functions they do not need.

Key Features

• IEC 61672 Class 1 sound level meter
• IEC 61260 Class 1 octave analysis
• IEC 61252 occupational noise / dosimeter capability
• 20–142 dB total measurement range
• Up to 145 dB peak
• 10 Hz–20 kHz frequency range
• A, C and Z frequency weighting
• Fast, Slow, Impulse and Peak time weighting
• Integrating sound level measurement
• Statistical noise analysis
• Optional 1/1 octave analysis
• Optional 1/3 octave analysis
• Optional FFT analysis
• Optional noise dosimeter functions
• Optional data logging
• Optional sound recording
• Optional GPS positioning
• Optional reverberation time measurement
• 240 × 320 colour display
• USB and RS-232 communication
• Up to 30 hours battery operation
• Bluetooth wireless communication available

Choose Your AWA6228+ Configuration

Configuration	Best For	Included Functions
Option 1 – Integrating	General professional Class 1 noise measurement	Integrating measurement
Option 2 – Environmental	Environmental, workplace and community noise surveys	Integrating + Statistical Analysis + Data Logging
Option 3 – Frequency Analysis	Advanced environmental and noise-source investigation	Integrating + Statistical Analysis + Data Logging + 1/1 Octave Analysis

Option 1 – Integrating

The most cost-effective entry into the AWA6228+ platform.

Ideal for professional users who require Class 1 integrating noise measurement without additional analysis functions.

Suitable for machinery, workplace, industrial and general environmental measurements.

Option 2 – Environmental

Recommended for professional environmental and community noise measurement.

Adds statistical analysis and time-history data logging, making it suitable for:

• Environmental noise surveys
• Community noise
• Traffic noise
• Construction noise
• Industrial boundary measurements
• Workplace noise investigations
• Long-duration measurements

Option 3 – Frequency Analysis

Adds real-time 1/1 octave analysis to the Environmental configuration.

This allows the user to determine which frequency bands are contributing to the measured noise and is suited to:

• Noise-source identification
• Machinery noise investigation
• Engineering noise control
• Environmental acoustic investigation
• Frequency analysis
• Acoustic troubleshooting

Additional Measurement Functions

Additional functions can be added to the AWA6228+ where required.

Optional Function	Capability
Statistical Analysis	Ln percentile and statistical environmental noise analysis
1/1 Octave Analysis	11 real-time octave bands from 16 Hz–16 kHz
1/3 Octave Analysis	33 real-time bands from 12.5 Hz–20 kHz
FFT Analysis	2048-line real-time frequency spectrum analysis
Noise Dosimeter	TWA, Lex,8h, LAVG, Dose and occupational exposure measurements
Data Logging	Records instantaneous and processed measurement data over time
SD Card + Sound Recording	Measurement storage and WAV audio recording
GPS Positioning	Records longitude, latitude, altitude and movement information with measurements
Reverberation Time	Indoor reverberation measurement using the integrated impulse response method

A custom configuration can be supplied where a combination of these functions is required.

Analysis Capabilities

1/1 Octave Analysis

• 11 octave bands
• 16 Hz–16 kHz
• IEC 61260 Class 1
• A, C and Z weighting
• Real-time NR and NC values
• 50 analyses per second

1/3 Octave Analysis

• 33 bands
• 12.5 Hz–20 kHz
• IEC 61260 Class 1
• Simultaneous parallel analysis
• 50 analyses per second

FFT Analysis

The optional FFT function provides:

• 2048 spectral lines
• Sampling frequencies up to 48 kHz
• MAX, MIN and LeqT measurements
• Hanning, Brinell, flat and rectangular window functions

Occupational Noise / Dosimeter

The optional dosimeter function supports:

• TWA
• Lex,8h
• LAVG
• Dose
• LAeq,T
• LCpeak
• LZpeak
• Selectable exchange rates
• Selectable thresholds and criterion levels

Optional Accessories & Add-ons

Accessory / Option	Purpose
AWA6221A Class 1 Sound Calibrator	Field calibration and verification
Tripod – 1.46 m	Stable hands-free and long-duration measurements
AWA8732 Extension Cable – 5 m	Remote microphone positioning
AWA8732 Extension Cable – 10 m	Remote microphone positioning
AWA8732 Extension Cable – 20 m	Long-distance remote microphone positioning
Extension Rod	Positions the microphone away from the operator
AH40 Mini Printer	Immediate field printing of results
32 GB SD Card	Expanded data storage and sound recording
GPS Module	Adds location information to measurement records
Bluetooth Module	Wireless printing and smartphone communication/control

Standard Supply

The standard AWA6228+ package includes:

• AWA6228+ sound level meter
• AWA8734 Ø80 mm windscreen
• AWA8522 5 V / 2 A power adaptor
• AWA8730 Mini-USB cable
• USB drive with transfer software
• AWA8760 update / RS-232 cable
• AWA8780 carrying case
• Hand strap
• User manual

Technical Specifications

Specification	Details
Accuracy	IEC 61672 Class 1
Octave Standard	IEC 61260 Class 1
Dosimeter Standard	IEC 61252:2002
Total Measurement Range	20–142 dB
Peak Measurement	Up to 145 dB
Frequency Range	10 Hz–20 kHz ±1 dB, excluding microphone
Microphone / Preamplifier	1/2" pre-polarised condenser microphone + AWA14601 removable preamplifier
Frequency Weighting	A, C, Z, B, D and user-defined weighting
Time Weighting	F, S, I, Peak
A/D Resolution	24 bit
Sampling Frequency	48 kHz
Display	240 × 320 colour display
Display Resolution	0.1 dB
Internal Storage	32 MB Flash
Additional Storage	Optional SD memory card
Interfaces	USB, RS-232, AC and DC outputs
Power Supply	4 × LR6 batteries or 5 V external supply
Battery Life	Up to 30 hours
Dimensions	260 × 80 × 30 mm
Weight	Approx. 0.35 kg including batteries
Operating Temperature	-10°C to +50°C
Storage Temperature	-20°C to +70°C
Operating Humidity	25–90% RH

Typical Applications

• Environmental noise measurement
• Workplace noise assessment
• Industrial boundary noise
• Machinery and equipment noise
• Construction noise
• Traffic and community noise
• Occupational noise exposure
• Frequency spectrum analysis
• Noise-source identification
• Engineering noise control
• Long-term noise monitoring
• Reverberation measurement
• Building and room acoustics

Help Me Choose

Sound Level Meters

Model	Accuracy	Variants / Analysis Available	Best For / Why Choose It
AWA5636	Class 2	Basic • Integrating / Leq • Online Monitoring • Statistical + TWA/Dose	General workplace, machinery and environmental noise. Lowest-cost professional option.
AWA5662	Class 1	Integrating • Statistical • TWA/Dose • 1/1 + 1/3 Octave • Low/High SPL versions	Professional Class 1 noise measurement. Best-value Class 1 option.
AWA6228+	Class 1	Integrating • Statistical • 1/1 Octave • 1/3 Octave • FFT • Reverberation • Logger • Recording • Dosimeter • GPS	Professional and advanced noise measurement. Configure only the functions you need.
AWA6292	Class 1	Integrating • Statistical • TWA/Dose • 1/1 Octave • 1/3 Octave • Reverberation • STI	Advanced environmental and architectural acoustics. Highest acoustic capability.

The AWA5636 is the best starting point where Class 2 accuracy is suitable.

Step up to the AWA5662 when Class 1 accuracy is required while keeping the instrument straightforward and cost-effective.

Choose the AWA6228+ where greater configuration flexibility or advanced functions such as FFT, reverberation, detailed frequency analysis or GPS are required.

The AWA6292 is intended for more specialised acoustic applications including advanced frequency analysis, reverberation and STI measurement.

Specialist Instruments

Model	Type	Versions / Configurations	Best For	Why Choose It
AWA5920	Noise Dosimeter	Single • Multi-unit kits	Personal and occupational noise exposure	Wearable shift monitoring
YT2001	Acoustic Imager	Standard	Leak detection, partial discharge and sound-source location	Visually locate sound sources

Not sure which model you need? Send us your application, required measurement parameters or applicable standard and our applications team can recommend the most suitable instrument and configuration.

Downloads

Downloads

Download product manuals and operating instructions below.

Model	Document
AWA5636	Download AWA5636 Instruction Manual
AWA5662	Download AWA5662 Instruction Manual
AWA6228+	Download AWA6228+ Instruction Manual
AWA6292	Download AWA6292 Instruction Manual
AWA5920	Download AWA5920 Instruction Manual
YT2001
AWA6021A	Download AWA6021A Class 1 Sound Calibrator User Manual
AWA6022A	Download AWA6022A Class 2 Sound Calibrator User Manual