Svantek SVAN 971 - Parameters for Profiles; Data Logging

SVAN 971 User Manual
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Threshold level
The threshold level of the triggering signal (Level) can be set in the range from
24 dB to 136 dB. The instantaneous value of the LEQ result measured with the
Filter and the Detector constant selected for the first profile (path: <Menu> /
Measurement / Profiles) compares with the Level value every 0,5 milliseconds.
Speed of Source value changing
This position appears when the Gradient+ trigger is chosen. The speed of the
Source value changing (Gradient) can be set in the range from 1 dB/ms to
100 dB/ms.
5.3 SETTING PARAMETERS FOR PROFILES – PROFILES
Parameters for three profiles can be set in the Profiles
list (in case of Lev. Met. function) or in the Profile x lists
(in case of Dosimeter function).
Following parameters can be programmed independently
for each profile: weighting filters for other than peak
results calculations (Filter), weighting filters for peak
results calculations (Filter Peak) and LEQ detectors type
(Detector).
<ENT>
Weighting filter selection
Next weighting filters for both Filter and Filter Peak positions can be selected:
• Z class 1 according to IEC 61672-1:2013 standard,
• A class 1 according to IEC 651 and IEC 61672-1:2013 standards,
• C class 1 according to IEC 651 and IEC 61672-1:2013 standards,
• B class 1 according to IEC 651 standard,
• LF low frequency filter according to China requirements.
LEQ detector selection
Available LEQ detectors (time constants): Impulse, Fast and Slow.
Time constants are applied always to the Lmax, Lmin, L(SPL), Ltm3 and Ltm5
results and to the Leq, LE(SEL), LEPd and Lden results in the case the
Exponential LEQ detector is selected in the General Settings list (see Appendix
D).
5.4 SETTING THE ALARM THRESHOLDS FOR DOSE METER FUNCTIONS – ALARM
The Alarm position is active only in the Dosimeter
function and is described in detail in the DOSIMETER
section of this manual.
<ENT>
5.5 SETTING UP THE DATA LOGGING – LOGGING
Main measurement results or Summary Results (L(SPL), Leq, LE(SEL), Lden, LEPd, Ltm3, Ltm5, Lnn,
OVL, Lpeak, Lmax, Lmin) 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.