Weighting filter selection
Sound measurements
• Z according to IEC 61672-1:2013 for Class 1,
• A according to IEC 651 and IEC 61672-1:2013 for Class 1,
• C according to IEC 651 and IEC 61672-1:2013 for Class 1,
• B according to IEC 651 for Class 1,
• G according to ISO 7196:1995,
• R1, R2, R3 – user real time filters if they were activated (path: <Menu> / Auxiliary Setup / User Filters /
Real Time Filters).
Vibration measurements
• acceleration measurements: HP, HP1, HP3, HP10, Wh,
• velocity measurements: Vel1, Vel3, Vel10 and VelMF,
• displacement measurements: Dil1, Dil3 and Dil10,
• R1, R2, R3 – user real time filters if they were activated (path: <Menu> /
Auxiliary Setup / User Filters / Real Time Filters).
The characteristics of these filters are given in Appendix C.
Note: The Real Time Filters for SVAN 979 is an extra cost option, part number SV 979_16.
RMS detector
Available RMS detectors (time constants):
Impulse, Fast and Slow for Sound
measurements and 100ms, 125ms, 200ms,
500ms, 1.0s, 2.0s, 5.0s, 10.0s for Vibration
measurements.
You can easily access the Profiles screen
from the result view screen. It is necessary to
put the cursor on some profile field (for
example, P(1)) with the ▲ / ▼ or ◄ / ► key
and press <ENTER>.
4.4 DATA LOGGING – LOGGING
Summary Results (Peak, Max, Min, Spl, Leq, SEL, Lden, LEPd, Ltm3, LTeq, 10 x Ln, EX, SD, LR1, LR2,
OVL, NC, NR for Sound measurements or RMS, Ovl, Peak, P–P, MTVV for Vibration measurements as well
as 1/1÷1/12 octave or FFT spectra with Total results and meteo results) are measured and saved in the file
with the step defined by the Integration Period parameter as many times as defined by the Repetition Cycles
parameter.
The instrument enables also additional registration of some results with different step defined by the
Logger Step parameter (path: <Menu> / Measurement / Logging / Logger Setup). Therefore, it is possible to
save in parallel two sequences of measured results – one for Summary Results and another for so called
Logger Results.
When logging is enabled, selected logger results from three independent profiles (Peak, Max, Min, Leq, LXY,
LR1 and LR2 for Sound measurements or Peak, P-P, Max and RMS for Vibration measurements as well as
1/1 octave - 1/12 octave spectra with Total results and meteo results) can be saved simultaneously with time
step down to 2ms. Recording of logger results in a file is stopped after the period, which is equal to
Integration Period multiplied by Repetition Cycles or after stopping a measurement manually.
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