SVAN 977A is an all-digital, Class 1 Sound & Vibration level meter designed for
general acoustic and vibration, environmental noise, occupational health and
building acoustic measurements.
Three acoustic or vibration user configurable profiles allow parallel
measurements with independently defined frequency filters and RMS detector
time constants. Each profile provides significant number of results (like Spl, Leq,
Sel, Lden, LEPd, Ltm3, LTeq, Peak, Max and Min as well as ten statistics, two
rolling Leq, expected Leq value, standard Leq deviation and noise criterium and
noise ratio indexes in case of sound measurements or RMS, Ovl, Peak, P-P in
case of vibration measurements). Advanced time history logging for each profile
provides complete information about the measured signal using the SD-card
fitted in the bottom of the meter and can be easy downloaded to any PC using
the USB interface and SvanPC++ software.
All required weighting filters: A, B, C, Z, U, AU and LF for sound measurements
and HP1, HP3, HP10, Vel1, Vel3, Vel10, VelMF, Dil1, Dil3, Dil10 and Wh for
general vibration measurements (like acceleration, velocity and displacement);
are available with this instrument.
Using the computational power of its digital signal processor SVAN 977A can,
simultaneously to the meter mode, perform the real time 1/1 Octave or optionally
1/3 Octave analysis including calculations of statistical levels or can optionally
perform FFT analysis.
The built-in frequency analyser offers 1/1 octave real-time analysis as a standard
feature and 1/3 octave and FFT as optional functions. The frequency analysis is
logged together with the time history of sound or vibration meter results.
Time domain waveform signal recording on the SD-card is available as an option
and advanced trigger and alarm functions are available in the standard version
of this instrument.
For building acoustic applications, SVAN 977A offers Reverberation Time
measurements (RT60) option and BA Assistant application for smartphones.
A fast USB 1.1 interface (12 MHz) creates a real-time link for the PC "front-end" application of SVAN 977A. With
the use of optional interfaces (RS 232) the instrument can be remotely controlled from the PC with the use of
SvanPC++ software.
SVAN 977A is equipped with Bluetooth
®1
v.2.0+EDR module and can be remotely control by the SvanMOBILE
smartphone application for the Android platform.
Working as a part of SV 277PRO monitoring station, equipped with 3G modem, SVAN 977A can transfer
measured data via Internet to PC with the use of SvanPC++_RC option or via SvanNET web service. The
instrument can be fully remotely controlled via these interfaces. The instrument has advanced alarms features,
enables the user notification about exceeded threshold levels by SMS or mails.
The instrument is powered from four AA standard alkaline or rechargeable batteries (i.e. NiMH – a separate
charger is required). Powering the instrument from the External DC power source or the USB interface is also
possible.
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