B&K 2245 - Statistical Parameters

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Table of Parameters
This table gives an overview of all the possible parameter / frequency weighting combinations.
✐ Note: The parameters are listed as they appear in the Spectrum parameters menu.
A C Z B
Leq LAeq LCeq LZeq LBeq
LFmax LAFmax LCFmax LZFmax LBFmax
LSmax LASmax LCSmax LZSmax LBSmax
LFmin LAFmin LCFmin LZFmin LBFmin
LSmin LASmin LCSmin LZSmin LBSmin
LF LAF LCF LZF LBF
LS LAS LCS LZS LBS
Statistical Parameters
Statistics can be calculated for broadband measurements. Broadband statistics are calculated with 0.2 dB class with over
130 dB range.
How to Set up Parameters for Statistical Analysis
1.
Open the menu.
l
From the instrument: Press briefly to open the menu.
l
From the mobile app: Tap to open the instrument menu.
2. Go to: Measurement settings > Statistical parameters.
3. Choose the Basis parameter you want to sample: LAeq, LAF or LAS.
4. Set the percentile levels (LN), up to 5.
About Basis Parameters
The Basis parameter specifies the parameter to sample. In other words, the parameter you choose will characterize the
statistical data that the instrument collects.
l
LAF is sampled every 16 ms
LAF is the instantaneous time-weighted (F) sound level with frequency weighting A.
Set up the Instrument: Measurement Parameters