Loud. Num. (Loudness Numeric)

Specifications (Extract of the data sheet)

Numerical display:   M (currently measured Momentary value, labelling adjustable)
      S (currently measured Short value, labelling adjustable)
      I (currently measured Integrated value, labelling adjustable)
      LRA (Loudness Range value)
      TPmax (maximum measured TruePeak value)
      Mmax (maximum measured Momentary value)
      Smax (maximum measured Short value)
      I-time (duration of the Integrated measuring)
The values displayed are based on the specifications of the selected Loudness mode which are described in the specifications of the Loudness Sum instrument.