NTi Audio
LESS NOISE. MORE SOUND
XL2 Audio and Acoustic Analyzer

Sound Level Meter

A sound level meter is an instrument that measures sound levels. Commonly the instrument is hand-held and attached to a measurement microphone. It is used to determine if sounds in a particular environment are louder than the legal limit or, even worse, loud enough to damage your hearing. Typically such noise pollution is measured in factories with heavy machinery (industrial noise), near airports and busy roads and railways (community noise; also called environmental noise, residential noise or domestic noise) and live music event monitoring (heard as sweet music or an annoying noise depending on your age and tastes).

Sound level meters measure sounds in the range of human hearing; 20 Hz to 20 kHz. The IEC61672 standard specifies two performance categories for sound level meters, class 1 and class 2. The American standard ANSI S1.4 refers to these categories as type 1 and type 2. These categories are distinguished by the measurement accuracy across the frequency spectrum and the operational range of temperatures. Class 1 instruments have tighter tolerances than lower-cost class 2 units. Precise and legal measurements require a class 1 or type 1 sound level meter.

NTi Audio offers both class 1 and class 2 solutions comprising an XL2 Analyzer together with a choice of measurement microphones.

XL2 Sound Level Meter - The Flexible Solution

The XL2 provides a precise sound level meter for live event and environmental noise monitoring. Numerous measurement variations are simultaneously available. Actual level (live), Lmin, Lmax, Leq and Lpeak may be measured in combination with frequency weighting A, C or Z and time weightings fast, slow and optional impulse. All results are simultaneously available and may be stored automatically for later documentation.


XL2 Sound Level Meter

Customers may log all acquired level information onto a removable SD card. Additionally the XL2 offers wav-file recording for a complete documentation of the measured sound pressure levels. Voice notes may also be added to each measurement.






Features

  • Standards IEC 61672, IEC 60651, IEC 60804, ANSI S1.4, ANSI S1.43

  • Sound levels
    • SPL actual, Lmin, Lmax, Lpeak, Leq, gliding Leq
    • Spectrum 1/3 octave, 1/1 octave
    • 1/6 octave, 1/12 octave optional
    • Sound Exposure Level LAE (optional)
    • Percentile statistics for wide band, 1/1 and 1/3 octave spectrum:
      1%, 5%, 10%, 50%, 90%, 95%, 99% (optional)
    • Calculated levels (optional): LCeq - LAeq, LAIeq - LAeq, LAFT5eq -LAeq
    • Clock-impulse maximum level "TaktMax" according to DIN 45645-1 (optional)
  • Logging to SD Card
    • All levels
    • Spectrum logged as often as every 1 second
    • 100 ms interval optional
    • Wav-file (linear wav-files with 24 bit, 48 kHz optional)
  • Frequency weighting: A, C, Z (=flat)
  • Time weighting: Fast, slow and optional impulse
  • Correction values k1, k2
  • Coloured indicators show when sound levels exceed limits
  • Digital I/O interface for the control of external peripherals
  • Remote measurement acquisition of live data to PC (optional)


Real Time Analyzer RTA

The RTA perfectly suits tasks such as optimization of sound systems and rooms. The XL2 measures and logs wideband values and the real time spectrum in 1/1 or 1/3 octave-band resolution according to IEC 61260 class 0. The sound level meter results of the wideband and RTA spectrum are simultaneously available.


XL2 Sound Level Meter

Sound Level Meter (Certified Class 1)

XL2 with M2230 Measurement Microphone
The XL2, together with the M2230 Measurement Microphone, forms a professional sound level meter with class 1 frequency response according to IEC 61672-1.

  • XL2 + M2230 Measurement Microphone
  • ASD Cable
  • Calibration Certificate (2x)
  • Exel System Case

More Accessories

 

 

 

 

 

 

 


Buy at the web shop or contact NTI Americas .

Sound Level Meter with Class 1 Frequency Response

XL2 with M2230 Measurement Microphone
The XL2, together with the M2211 Measurement Microphone, forms a professional sound level meter with class 1 frequency response according to IEC 61672-1.

  • XL2 + M2211 Measurement Microphone
  • Calibration Certificate (2x)
  • Exel System Case

More Accessories

 

 

 

 

 

 

 


Buy at the web shop or contact NTI Americas .

Sound Level Meter Class 2

XL2 with M4260 Measurement Microphone
The XL2, together with the M4260 Measurement Microphone, forms a professional sound level meter according to IEC 61672-1, class 2.

  • XL2 + M4260 Measurement Microphone
  • Calibration Certificate (2x)
  • Exel System Case

More Accessories

 

 

 

 

 


Buy at the web shop or contact NTI Americas .

Sound Level Meter Basic

Acoustilyzer AL1 with MiniSPL

including MiniLINK PC Software for Data Documentation

The Acoustilyzer with the MiniSPL measurement microphone forms a comprehensive class 2 sound level meter for event monitoring according to IEC 61672.

  • Acoustilyzer AL1
    NTi Audio #: 600 000 080
  • MiniSPL Measurement Microphone
    NTi Audio #: 600 000 022
  • Calibration Certificate (2x)
    NTi Audio #: 600 000 018
  • System Case
    NTi Audio #: 600 000 020

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Minilyzer ML1 with MiniSPL

excluding documentation to PC

The Minilyzer with the MiniSPL measurement microphone forms a basic class 2 sound level meter. It measures the sound levels Leq, Lmin, Lmax and live.

  • Minilyzer ML1
    NTi Audio #: 600 000 011
  • MiniSPL Measurement Microphone
    NTi Audio #: 600 000 022
  • Calibration Certificate (2x)
    NTi Audio #: 600 000 018
  • System Case
    NTi Audio #: 600 000 020

More Accessories


Buy at the web shop or contact NTI Americas .
Sound
Level
Meter

Contact NTi Audio

NTI Americas Inc.
Tigard, Oregon
Thomas E. Mintner
+1 503 684 7050
Email

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