Environmental Noise Monitoring

Projector Software for XL2 Analyzer

• Handheld and compact design for field applications and stand-alone operation
• Predefined measurement profiles according local standards simplify measurements for automated sound level documentation and audio wav-file recording
• Calibrated acoustic test system for traceable measurements

XL2 Projector Software
displays XL2 screen in real-time

• Sound pressure level SPL
  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 Impulse.
   
• Remote measurement (optional)
  Allows querying the XL2 measurement data online via the USB interface. Thus customers may implement the XL2 in their noise monitoring application.
   
• Rating Level Lr
  Assesses noise annoyance according ISO 1996-2. The used rating level Lr is calculated as follows: Lr= LAeq + KI + KT + KR + KS. The correction factors KI (impulses), KT (tones and information content), KR (time of day) and KS (certain sources and situations) are standardized and differ between countries. The detailed FFT analysis provides the results for the KT factor.
   
• Percentiles
  Measures statistic sound levels in wideband and the real time spectrum 1%, 5%, 10%, 50%, 90%, 95%, 99% (optional with Extended Acoustic Pack). This e.g. supports the calculation of the Noise Pollution Level LNP = Leq + (L10 - L90).

Stack Light
indicates exceeding sound levels

• Turnkey Solution
  Multiple XL2 Analyzers connect with USB Device Servers to a network for online noise monitoring. Also wireless solutions are supported. An individual Projector Software may be started for each XL2 Analyzer, thus all XL2 screens are displayed on the monitor at one glance. The Projector Software offers to control each XL2 Analyzer from the host PC.

Demo Labview Software
for Sound Level Monitoring provided with
Remote Measurement Option

• Individual Solution programmed by Customer
  The Remote Measurement Option allows querying the XL2 measurement data online via the USB interface. Multiple XL2 Analyzers can be implemented into a customer specific noise monitoring solution. The XL2 acts as a front end device for sound level measurements.

Exel Acoustic Set

Description	NTi Audio #
XL2 + M4260, Class 2	600 000 340
XL2 + M2210, Class 1 frequency response	600 000 350
Extended Acoustic Pack	600 000 339
Remote Measurement Option	600 000 375
Stack Light	600 000 381/382