XL2 Sound Level Meter
Sound Pressure Level SPL
XL2 monitors the noise pollution to verify any annoying or excessive noise. All sound levels such as actual, Lmin, Lmax, Leq and the sound exposure level LAE are simultaneously measured and logged with frequency weighting A, C, Z and time weightings Fast, Slow and the optional Impulse.
The event recorder functionality triggers the measurement by programmable level thresholds or manually by the external input key pad. (optional with Extended Acoustic Pack).
Rating Level Lr
Assesses the annoyance at a noise source according ISO 1996-2. The rating level Lr is calculated by the noise exposure corrected with different factors for an increased annoyance as follows:
||Correction factor for impulses
||Correction factor for tones and information content
||Correction factor for the time of the day
||Correction factor for special situations and noise sources
These correction factors are standardized and differ between countries. The detailed FFT analysis provides the results for the KT
Measures statistic sound levels in wideband and the real time spectrum 1% - 99%.
- Road Traffic Noise
- Industrial Noise
- Noise Pollution Level LNP = Leq + (L10 - L90)
Remote Measurement (optional)
Allows querying the XL2 measurement data online via the USB interface. Thus customers may integrate the XL2 into their noise monitoring application.