User manual

265
Specifications
Polarity Checks polarity of speakers and line signals •
Positive/Negative detection of wideband and •
individual 1/1 octave bands through internal micro-
phone or XLR/RCA connector
Test signal: NTi Audio polarity test signal gener- •
ated by the MR-PRO, MR2 or the included NTi
Audio Test CD
Delay Time Propagation delay between electrical reference •
signal and acoustic signal using the internal micro-
phone
Range: 0 ms - 1 second (0 m - 344 m) •
Resolution: 0.1 ms •
Test signal: NTi Audio delay test signal generated •
by the MR-PRO, MR2 or the included NTi Audio
Test CD
Noise
Curves
Noise Rating NR according to ISO/R 1996-1971 •
Noise Criteria NC •
in accordance with ANSI S12.2-2008 and -1995
Room Noise Criteria RNC •
in accordance with ANSI S12.2-2008
Room Criteria RC •
in accordance with ANSI S12.2-1995
Preferred Noise Criteria •
in accordance with ASA 1971
Application range of measurement microphones: •
M2230: down to NC15 »
M2211: down to NC15 »
M4261: down to NC25 »
1/12 Octave
Analysis
(optional)
Actual level, L •
min
, L
max,
L
eq
,
Leq1”, Leq4”
Selectable 1/1, 1/3, 1/6 and 1/12 octave spectral •
resolution
Measurement Units: Volt, dBu, dBV and dBSPL
•
Band pass filters (base 10)
•
Capturing of multiple readings into the internal •
memory
Comparing measurement results against captures •
with relative or absolute curve display
Comprehensive tolerance handling •
Creating tolerance masks based on captures for •
passed/failed measurements
Cinema
Meter
(optional)
Measurements in 1/3 octave resolution in accor- •
dance with SMPTE ST 202:2010 and SMPTE RP
200:2012
An interactive assistant guides the user through •
dedicated measurement procedures.
STIPA
Speech
Intelligibility
(optional)
Single value STI and CIS test result in accordance
•
with IEC 60268-16, ISO 7240-16,
ISO 7240-19, DIN VDE 0828-1, DIN VDE 0833-4,
BS 5839-8, NFPA 72
Ambient noise correction •
Automated averaging of measurements •
Modulation indices and individual band level re- •
sults with error indicator
Test signal: NTi Audio STIPA signal generated by •
the MR-PRO, NTi Audio TalkBox or the STIPA Test
CD