Svantek SV 971A, Руководство пользователя

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SV 971A User Manual
12
1 INTRODUCTION
SV 971A is an extremely small Class 1 IEC 61672-1:2013 Sound
Level Meter (SLM) with the optional real time 1/1 & 1/3 octave
analyser and Sound Exposure Meter (SEM) conforming to
international standards ISO 9612 and OSHA (IEC 61252;
ANSI S1.25).
The new user interface of this instrument makes measurement
configuration as easy as possible. This all makes SV 971A an
ideal choice for industrial hygiene noise measurements, short
period environmental noise measurements, acoustics consultancy
surveys, technical engineers dealing with noise issues and
general acoustics noise measurements.
The instrument enables huge time history logging capability
providing broad band results and spectra with adjustable double
(long and short) logging steps. Audio recording on user selectable
trigger conditions complete the logging functionality. Data are
stored on a micro SD memory card and can be easily downloaded
to a PC over the USB-C or optional RS 232 interface. Direct
printing feature enables quick on-site printing with the use of
optional portable printer.
The instrument can be easily calibrated in the field using a sound
calibrator. The calibration process can be automatically activated
whenever a sound calibrator with the auto run function is installed
on the microphone.
SV 971A comes with Svantek dedicated software packages
–
Supervisor for data downloading, visualization, basic post-
processing and exporting to commonly used office software
applications and also with the full analysis package
+
that enables advanced data processing and analysis, visualization
and automated reporting.
SV 971A is equipped with the Bluetooth
®1
module and can be
remotely control by the BA Assistant smartphone application
smartphone application dedicated for building acoustics and
speech intelligibility measurements.
Thanks to a robust pocket size housing and Low Energy Long Range Bluetooth
®
Smart wireless
interface, this instrument is an excellent tool for anyone who deals with acoustic measurements.
1.1 SV 971A
AS
S
OUND
L
EVEL
M
ETER
& A
NALYSER
•
SLM mode: Lpeak , Lmax , Lmin , L , Leq , LE , Lden , LEPd , Ltm3 , Ltm5 , Leq statistics ( Ln ),
expected Leq value ( EX ), standard Leq deviation ( SD ), measurement time and overload time %
( OVL ) and two rolling Leq ( LR1 and LR2 ) with Class 1 IEC 61672-1:2013 accuracy in the
frequency range 5 Hz
÷ 20 kHz
•
SEM mode: Lpeak , Lmax , Lmin , L , Leq , LE , LEPd , Ltm3 , Ltm5 , Leq statistics ( Ln ), expected
Leq value ( EX ), standard Leq deviation ( SD ), Lc-a , DOSE , D_8h , PrDOSE , LAV , SEL8( LAE8 ),
PSEL( PLAE ), E , E_8h , peak counter ( PTC ), peak threshold ( PTP ), upper limit time ( ULT ), TWA ,
PrTWA , measurement time and overload time % ( OVL ) with Class 1 IEC 61672-1:2013 accuracy
in the frequency range 5 Hz
÷ 20 kHz
1 “The
Bluetooth
®
word mark and logos are registered trademarks owned by Bluetooth SIG, Inc. and any use of such
marks by SVANTEK is under license. Other trademarks and trade names are those of their respective owners.