Level distribution
As an optional extension, the instrument may be fitted to calculate the exceeding level (cumulative level distribution)
for the F time weighted level. The calculation is done for frequency weightings A and C or Z and for 1/1 octave or 1/3
octave filters (if present and used in a measurement).
Class width: 0.2 dB
Number of classes: 652 for levels between 10 dB above full scale (140 dB) and 120 dB below full scale (10 dB).
The classes for the highest and lowest levels are extended to also include levels above and below, respectively.
Sampling frequency for level: 10 samples per second. Display resolution: 0.1 dB based on interpolation.