Svantek SV 977D User Manual

144
SV 977D User Manual
1/3 Octave
Measurement Function enabling calculation of
Level Meter results and 1/3 octave results for sound or
vibration measurements in accordance with Class 1 IEC
61260-1: 2014. 1/3 octave results are presented as a
spectrum plot - a function of result vs central band
frequency and can be saved as a time-history. When the
1/3 Octave function is active the S:1/3 or V:1/3
abbreviation appears in the icon line.
Chapter
3.2, 10
FFT
Measurement Function enabling calculation of
Level Meter results and FFT spectrum for sound or
vibration measurements. FFT spectrum is calculated
based on Fast Fourier Transform algorithm and is
presented as a function of signal amplitude vs frequency
and can be saved as a time-history. When the FFT
function is active the S:FFT or V:FFT abbreviation
appears in the icon line.
Chapter
3.2, 11
RT60
Measurement Function enabling calculation of
reverberation time in 1/1 octave bands (from 63Hz to
16kHz) or 1/3 octave bands (from 50 Hz to 20 kHz)
including three total RMS levels (A, C and Z weighted).
This analysis is used for building acoustic purposes.
Depend on the type of the sound source used by the user
two methods can be applied: Impulse Response Method
and Interrupted Noise Method. Results are presented for
1/1 or 1/3 octave bands. When the RT60 function is
active the RT60 abbreviation appears in the icon line.
Chapter
3.2, 12
STIPA
Measurement Function enabling analysis of the speech
intelligibility with the STIPA method. When the STIPA
function is active the STI abbreviation appears in the icon
line.
Chapter
3.2, 13
Tonality
Measurement Function enabling assessing the audibility
of tones in the noise. The results are presented in a
special presentation view. When the Tonality function is
active the TON abbreviation appears in the icon line.
Chapter
3.2, 14
18.2 CALIBRATION
Name
Description
Screen
Reference
Calibration
Position on the Function screen that opens a screen with
positions allowing you to perform calibration or system
check of the instrument: System Check, Calibration by
Sensitivity, Calibration by Measurement, Calibration
History, Clear Calibration History, Auto Calibration and
Post Calibration.
Chapter
3.3
System Check
Position in the Calibration screen allowing you to perform
system check. The IEC 61672-1:2013 standard advises
users to perform in-situ checks of measuring
instruments. Checking should be carried out immediately
before and after the measurement.
Chapter
3.3.1

Svantek SV 977D Specifications

General

Brand	Svantek
Model	SV 977D
Category	Measuring Instruments
Language	English