Almost all the measurement specific setup is performed in the measurement menu.

The complete measurement time, from Start to Stop, is called the
Global measurement time
Two sequences of periods or time slices called
Profile resolution A and B
can be measured simultaneously to give a time history or level recorder function.

A level detector with time constants (F/S/I) is used to visualize and measure the sound or noise signal levels. The instantaneous levels from these time constants are available also when not measuring.
Time Constants F/S/I/

Three parallel frequency weighting networks (A/C/Z) are available. Most sound level measurements are performed using the A-network (it corresponds to normal human hearing ability at low or moderate sound levels) while peak levels often are detected using the C-network. The Z-network in fact is 'no weighting'.
Weighting networks A/C/Z

The frequency range can be divided into bands of octave or 1/3rd octave width. The analysing frequency range is from 0.1 Hz to 20 kHz and thus covers both the audio and vibration range.
Filter measurements

The percentiles / level distribution function tells how the sound level is spread out over the dynamic range. Up to 8 different Ln values are calculated simultaneously. The statistics are based on the F time constant and the class width is 0.2 dB. Both probability and cumulative distribution functions are available.
Level statistics Ln

A vast number of measurement functions are available. But only functions that are available in the Global measurements can be available in the Profiles. Almost any combination of time constant, weighting network and / or filter is available. Hint: Do not select more functions than you actually need!
Measurement functions

The actual signal can be recorded during the measurements. Different signal quality selections are available, and also the start / stop and length can be set to correspond to the intended purpose of the recording
Audio recording set up