NTi Audio XL2 Sound Level Meter - Manual (Page 209)

209
Specifications
Measure-
ments
SPL actual, L • eq, Lmin, Lmax, LCpeak
Gliding L • Aeq with selectable time window from
five seconds to one hour
All measurement results simultaneously available •
Correction value measurement wizard •
Noise exposure level LEX with post-processing •
Logging all data or subsets in selectable intervals •
Recording of wav-files (ADPCM), a new wav-file •
starts every 12 hours (max. wav-file size 512 MB)
Recording of voice notes •
Monitoring of sound levels that exceed limits •
Digital I/O interface for external peripherals control •
Real-Time
Analyzer
RTA
1/1 octave band: 8 Hz - 16 kHz •
1/3 octave band: 6.3 Hz - 20 kHz •
Level resolution: 0.1 dB •
Measurement Units: Volt, dBu, dBV and dBSPL •
Band pass filters (base 2) conform with IEC 61260 •
class 1, ANSI S1.11-2004, class 1
Wide band levels simultaneously •
Frequency weighting: X-Curve in accordance with •
ISO 2969
Capturing of a single reading into the internal •
memory for comparative measurements
Remote
Measure-
ment
(optional)
Querying measurement data online via the USB •
interface
Data Ex-
plorer
(optional)
Enables the import of measurement data into the •
XL2 Data Explorer software
Powerful data processor for easy and fast analysis •
of sound level measurement data on PC
Functions of
Extended
Acoustic
Pack
(optional)
SLMeter/RTA function •
Recording of linear wav-files (24 bit, 48 kHz) »
Percentiles for wide band, 1/1 and 1/3 octave »
spectrum
Flexible setting from 1% to 99% -
Sampling: every 1.3 ms -
Wide band: in 0.1 dB wide classes, based on -
sampling Lxy (x= A, C or Z, y= F, S or EQ1”)
1/1 and 1/3 octave spectrum: in 1.0 dB wide -
classes, based on Lxy (x= A, C or Z, y= F or S)
Dynamic range: 140 dB -
Sound Exposure Level LAE »
100ms logging »
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
FFT function •
High-resolution Zoom-FFT with selectable fre- »
quency ranges and resolution up to 0.4 Hz in the
range of 5 Hz to 20 kHz
RT60 function •
Reverberation time RT60 in 1/3 octave resolution »