MEASUREMENT

The Extended Acoustic Pack, when installed on your XL2, supports the daily tasks of acoustic consultants. It offers additional features for sound level logging and acoustic measurements, such as recording linear wav-files, percentile statistics, sound exposure level, 100 ms logging, event monitoring, reverberation time RT60 in 1/3 octave resolution, Zoom-FFT with 0.4 Hz resolution and many more.
 

• SLMeter/RTA function
  • Recording of wav-files (24 bit, 48 kHz), a new wav-file is started after each hour (max. wav-file size 512 MB)
  • Percentiles for wide band and spectrum with flexible setting from 0.1% to 99.9%
  • Sound Exposure Level LAE
  • 100 ms logging
  • RTA logging of Lmin and Lmax
  • Event-triggered audio and data recording
  • Time weighting: Impulse (LxI, LxIeq with x= A, C, Z)
  • True peak level in 1/1 and 1/3 octave resolution
  • Clock-impulse maximum level (TaktMax) and values as specified in DIN 45645-1
  • Impulsiveness detection in accordance with BS4142:2014 and NordTest ACOU 112
• FFT function
  • High-resolution Zoom-FFT with selectable frequency ranges and resolution up to 0.4 Hz in the range of 5 Hz to 20 kHz
  • Recording of linear wav-files (24 bit, 48 kHz)
• RT60 function
  • Reverberation time RT60 in 1/3 octave resolution
• 1/12 octave Spectral Analyzer
  • Recording of linear wav-files (24 bit, 48 kHz)

The ASD Cable allows for extended connections of the NTi Audio measurement microphones. It supports the transfer of the electronic data sheet from the microphone to the XL2 Analyzer.

NTi Audio #:

• 5 meter (16 feet): 600 000 336
• 10 meter (32 feet): 600 000 364
• 20 meter (64 feet): 600 000 365

The ASD technology offers the electronic data sheet transfer for cable length until 20 meter (64 feet).

This mechanical adapter piece mounts the XL2 on a microphone stand. Adapters for 3/8" or 5/8" stands are included.

The XL2 Analyzer together with the Digital I/O Adapter controls external peripherals, such as a big red-orange-green lamp displaying exceeding sound levels. The Digital I/O Adapter connects to the digital I/O interface of the XL2 Analyzer.

This flexible universal joint mounts the XL2 on a 1/4" or 3/8" stand. It provides the facility to mount the XL2 at any angle.

NTi Audio #: 600 000 387
Americas #: 600 000 373

A 5/8" stand requires additionally the Mounting Adapter, # 600 000 372.

The battery-operated Class 1 Sound Calibrator is classified for the calibration of class 1 measurement microphones, sound level meters and other acoustic measurement equipment. This precision microphone calibrator delivers 94 or 114 dB at a frequency of 1 kHz.