o Ultra (1-31.5k) - 16 filters with centre
frequencies from 1 Hz to 31.5 kHz
- 1/3 Octave:
o Full (0.8-20k) - 45 filters with centre
frequencies from 0.8 Hz to 20 kHz
o Ultra (0.8-40k) - 48 filters with centre
frequencies from 0.8 Hz to 20 kHz
Weighting filter selection
Following pre-weighting filters are available for the 1/1 Octave and 1/3 Octave analysis.
For sound analysis with the Audio band:
• A - class 1 according to IEC 651 and IEC 61672-1:2013,
• C - class 1 according to IEC 651 and IEC 61672-1:2013,
• B - class 1 according to IEC 651,
• Z - class 1 according to IEC 61672-1:2013.
For vibration analysis with the Full band:
• HP - class 1 according to IEC 61672-1:2013.
For sound and vibration analysis with the Ultra band:
• HPE – ultra band filter.
The filter characteristics are given in Appendix C.
RMS detector selection
The Detector parameter defines the
LEQ/RMS detector for the 1/1-octave or 1/3-
octave analysis. For Sound measurements, it
is possible to select the Linear, Fast or Slow
detector. For Vibration measurements, only
Linear detector is available.
Note: The RMS Detector type defined in the General Settings screen (path: <Menu> / Measurement
/ General Settings) is used for the level meter results in three profiles.
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