AWA6228+ Advanced Class 1 Noise Analysis Kit
The AWA6228+ Advanced Class 1 Noise Analysis Kit is a complete professional system for environmental noise surveys, engineering investigations, machinery noise analysis and acoustic troubleshooting.
Built around the AWA6228+ Class 1 Multifunction Sound Level Meter, this configuration combines integrating measurement, statistical noise analysis, automatic 24-hour monitoring, time-history data logging and real-time 1/1 octave frequency analysis.
The kit also includes a Class 1 acoustic calibrator, professional tripod and remote microphone system, providing the equipment required for accurate and repeatable professional field measurements.
Unlike a basic sound level meter that only shows how loud a noise is, the AWA6228+ also allows the user to investigate which frequency bands are contributing to the measured noise.
Complete Advanced Class 1 Kit
| Included Equipment | Purpose |
|---|---|
| AWA6228+ Class 1 Sound Level Meter | Integrating, statistical and frequency analysis |
| Statistical Analysis Function | Ln percentile analysis for environmental and variable noise |
| 24-Hour Noise Monitoring | Automatic long-duration environmental noise measurement |
| Data Logging / Time History | Records how noise levels change throughout the measurement |
| 1/1 Octave Analysis | Identifies the frequency bands contributing to measured noise |
| AWA6021A Class 1 Sound Calibrator | Professional field calibration at 94 / 114 dB |
| AWA8814 Professional Tripod | Stable microphone positioning for professional field surveys |
| AWA8820 Microphone Holder | Supports the remote measurement microphone |
| AWA8732 5 m Microphone Extension Cable | Positions the microphone away from the instrument and operator |
| Windscreen | Reduces wind influence during outdoor measurement |
| Carrying Case | Protects the equipment during storage and transport |
| USB / Data Connection | Transfers measurement data to a computer |
| PC Transfer Software | Measurement download and data management |
Why Choose the Advanced Kit?
This kit is intended for applications where overall sound level alone does not tell the full story.
A conventional sound level meter can establish that a noise problem exists.
The AWA6228+ adds statistical analysis, time-history logging and real-time octave analysis, allowing the user to investigate:
- How the noise changes over time
- How frequently particular noise levels occur
- Which frequency bands dominate the noise
- Whether low-frequency or higher-frequency components are contributing
- How machinery or processes compare
- Which engineering noise-control measures may be appropriate
This is particularly valuable for:
- Environmental noise investigations
- Machinery noise
- Tonal noise investigations
- Industrial boundary noise
- Engineering noise control
- Low-frequency noise investigation
- Acoustic troubleshooting
- Product noise testing
AWA6228+ Class 1 Sound Level Meter
The AWA6228+ is a configurable professional Class 1 sound level measurement and acoustic analysis platform.
The configuration supplied in this kit includes:
- Integrating sound level measurement
- Statistical noise analysis
- Automatic 24-hour monitoring
- Time-history data logging
- Real-time 1/1 octave frequency analysis
Main Measurements
Measurement capabilities include:
- Lp
- Leq
- Lmax
- Lmin
- SEL
- Peak sound levels
- Statistical Ln values
- Time-history data
- Real-time octave-band levels
Statistical measurement supports common environmental percentile parameters including:
- L1
- L5
- L10
- L50
- L90
- L95
- L99
- Additional user-defined Ln levels
- Standard deviation
24-Hour Noise Monitoring
The statistical measurement configuration also provides automatic 24-hour noise monitoring.
Environmental parameters include:
- Ld
- Ln
- Ldn
This makes the system suitable for longer-duration environmental surveys where noise behaviour must be assessed over an extended measurement period rather than at a single point in time.
1/1 Octave Frequency Analysis
The included Class 1 octave analyzer divides the measured sound into individual frequency bands.
The AWA6228+ provides 11 real-time octave bands covering:
- 16 Hz
- 31.5 Hz
- 63 Hz
- 125 Hz
- 250 Hz
- 500 Hz
- 1 kHz
- 2 kHz
- 4 kHz
- 8 kHz
- 16 kHz
This allows the user to identify whether a noise problem is dominated by:
- Low-frequency rumble
- Machinery frequencies
- Mid-frequency process noise
- Higher-frequency components
- Specific octave bands
Frequency analysis is particularly useful when investigating or selecting:
- Acoustic enclosures
- Noise barriers
- Silencers
- Acoustic absorption
- Machinery modifications
- Engineering noise controls
Time-History Data Logging
The data logging function records how measured noise changes throughout the survey.
Logging can include:
- Instantaneous sound pressure levels
- Leq and other processed measurement parameters
- Frequency-analysis data
Logging intervals can be selected from 20 ms to 2000 ms in 20 ms increments.
Time-history measurement is particularly useful for:
- Environmental noise investigations
- Long-duration surveys
- Machinery operating cycles
- Intermittent noise
- Construction activities
- Comparing noise before and after engineering controls
AWA6021A Class 1 Sound Calibrator
The included AWA6021A Class 1 Sound Calibrator provides professional field verification of the measurement system.
Selectable calibration levels:
- 94 dB @ 1 kHz
- 114 dB @ 1 kHz
A field calibration check can be performed before and after a survey to verify measurement stability.
Remote Microphone Measurement System
A major advantage of the Advanced Kit is the included remote microphone setup.
The system includes:
- AWA8814 professional tripod
- AWA8820 microphone holder
- AWA8732 5 m microphone extension cable
This allows the measurement microphone to be mounted independently on the tripod while the sound level meter remains with the operator.
Advantages
- Keeps the operator away from the measurement microphone
- Reduces acoustic reflections from the operator
- Allows more consistent microphone positioning
- Makes the instrument easier to operate during measurement
- Allows measurements to be taken while the operator remains several metres away
- Improves repeatability between surveys
- Suitable for longer-duration environmental measurements
Key Specifications
| Specification | Details |
|---|---|
| Instrument Type | Class 1 Multifunction Sound Level Meter |
| Accuracy | IEC 61672 Class 1 |
| Octave Filter Accuracy | IEC 61260 Class 1 |
| Measurement Range | 20–142 dB |
| Peak Measurement | Up to 145 dB |
| Frequency Range | 10 Hz–20 kHz |
| Frequency Weighting | A, C, Z |
| Time Weighting | Fast, Slow, Impulse, Peak |
| Measurement Functions | Integrating + Statistical + 24-Hour Monitoring + Logging + 1/1 Octave |
| 1/1 Octave Range | 16 Hz–16 kHz |
| A/D Resolution | 24 bit |
| Sampling Frequency | 48 kHz |
| Display | 240 × 320 colour display |
| Communication | USB / RS-232 |
| Remote Microphone Cable | 5 m |
| Power | Battery or external supply |
| Battery Operation | Up to approximately 30 hours |
Advanced Functions Available
The AWA6228+ can be expanded beyond the functions supplied in this kit.
| Optional Function | Capability |
|---|---|
| 1/3 Octave Analysis | More detailed real-time frequency-band analysis |
| FFT Analysis | 2048-line high-resolution spectrum investigation |
| WAV Sound Recording | Records actual audio for later noise-event identification |
| TWA / Noise Dose | Occupational noise exposure measurement |
| GPS | Stores measurement location information |
| Reverberation Measurement | Room and building acoustic analysis |
| Bluetooth | Wireless communication and compatible remote functions |
These functions can be specified separately where required.
Optional 1/3 Octave Analysis
For applications requiring finer frequency resolution, the AWA6228+ can be upgraded with real-time 1/3 octave analysis.
This provides:
- 33 frequency bands
- 12.5 Hz–20 kHz analysis range
- IEC 61260 Class 1 performance
- Parallel real-time analysis
- Up to 50 analyses per second
Recommended for:
- Detailed environmental acoustics
- Machinery noise investigation
- Product noise analysis
- Acoustic troubleshooting
- Engineering noise-control work
Optional FFT Analysis
FFT analysis can be added where octave analysis does not provide sufficient frequency resolution.
The AWA6228+ supports:
- 2048 FFT lines
- Multiple sampling frequencies
- MAX
- MIN
- Leq,T
- Multiple FFT window functions
This is particularly useful for investigating tonal or frequency-specific noise.
Optional WAV Audio Recording
WAV audio recording can be added where the user needs to identify the actual source of a recorded noise event.
This is useful for:
- Unattended environmental surveys
- Complaint investigations
- Intermittent machinery noise
- Construction noise
- Community noise
- Identifying unusual noise events
Recorded audio can be played back on the instrument or transferred to a computer.
Typical Applications
- Professional environmental noise surveys
- Industrial boundary noise
- Machinery noise investigations
- Engineering noise control
- Noise-source identification
- 1/1 octave frequency analysis
- Tonal noise investigation
- Construction noise
- Traffic noise
- Community noise
- Factory noise
- Long-duration noise monitoring
- Acoustic consulting
- Product noise measurement
- Environmental noise investigations
- Research and development
Who Is This Kit For?
The AWA6228+ Advanced Kit is particularly suited to:
- Acoustic consultants
- Environmental consultants
- Noise-control engineers
- Industrial hygienists
- Mechanical engineers
- Environmental officers
- Research laboratories
- Universities
- Product development teams
- Professional testing organisations
Help Me Choose
Professional Noise Measurement Kits
| Kit | Accuracy | Main Measurement Capability | Best For |
|---|---|---|---|
| AWA5636 Professional Kit | Class 2 | Integrating / Leq + calibrator + tripod | Workplace, machinery and general noise surveys |
| AWA5662 Professional Kit | Class 1 | Integrating + Statistical Ln + calibrator + tripod | Environmental, consulting and professional Class 1 surveys |
| AWA6228+ Advanced Kit | Class 1 | Statistical + 24-Hour Monitoring + Logging + 1/1 Octave + calibrator + remote microphone system | Engineering and advanced environmental noise analysis |
Choose the AWA5636 Professional Kit when you need an affordable complete Class 2 measurement system.
Choose the AWA5662 Professional Kit when you require Class 1 accuracy and professional statistical noise measurement.
Choose the AWA6228+ Advanced Kit when you also need to investigate which frequencies are contributing to the measured noise, require detailed time-history data or want a remote microphone measurement system.
Downloads
| Model | Document |
|---|---|
| AWA6228+ | Download AWA6228+ Instruction Manual |
| AWA6021A | Download AWA6021A Class 1 Sound Calibrator User Manual |