Four different analyzers measure complex noises sources over an extended time period. A wide 120 dB dynamic range eliminates selecting measurement scales as the meter will always be on the right range. The simultaneous provision of popular frequency and time weightings and exchange rates allow many different types of noise measurements.
Full-color, high-precision, graphic LCD enhances the user experience. Unit is ideal for measurements of outdoor noise levels over extended periods of time. It provides all the required parameters for comprehensive EPA, HUD or similar studies. Provides the popular max, min, and time average levels in addition to the statistical or LN% parameters. Designed to provide all the key results for these difficult environmental noise climates. Regular periodic recording at fixed intervals is provided plus the addition of extra time history profile recording.
Changing noise intervals are stored with the overall time average answer and displayed annotated with the time they occurred. Significant events can be triggered by noise level exceedances providing even more detail about what has happened. The audio signature is captured and can be used to identify the cause. Additionally, octave and third octave band filters in the B and C versions can provide frequency analysis of tonal noise levels that are important for the correct prescription of hearing protectors or noise reduction applications.
- Measurement Range: 20-140dB RMS (143.3dB peak)
Total Noise floor: 19dB(A) Class 1,25dB(A) Class 2
Time weightings: Fast, Slow and Impulse simultaneously
Frequency weightings: A, C and Z (un-weighted) simultaneously
Frequency bands: 11 Octave bands 16Hz-16kHz (B&C models), 33 Octave bands 12.5Hz-20kHz (C models)
Amplitude weighting (Q): 3, 4 and 5 simultaneously
Last 10s in cumulative mode (all models)
Timers: Duration 1s-24h,
- On/Off timers: 6 sets with selectable times and a repeat function