• Selection of preset intervals within the 25 msec to 199 hours interval range
  • 25 msec interval resolution below one second and one second resolution above
  • Free selection of any A- and C-/Z-weighted functions to be stored at each preset interval
  • Possible operator marker settings during the measurement
  • Selection of 3 different single markers and 1 toggle marker

The enhanced time profile mode allows logging of Leq, Lmax, Lmin, Lpeak, Le and SPL for all weighting networks and frequency bands for time constant F, S and I in parallel if option 5 parallel time constant is enabled. The user may select from one to all available parameters to log. The time resolution is from 25 ms logging to memory. If the frequency analysis option is installed, these values may be measured too, both as time profi le multi spectrum values and as global values.

User controlled source coding
With option 7, the instrument gets eight marker functions, where as four are user defined. Three of these are single markers and one is a toggle marker.

Option 7 requires that minimum option 6 be installed

Nor140 opt7 Nor140 opt7

L(t) with markers

Table with markers

 

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