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Hand-held Analyzer 2250 Light – User Manual
Fig.10.6
Displaying a Noise Curve
together with the L
Zeq
spectrum
For RC and NCB you also have the possibility of displaying the limit curves for Rumble and
Hiss, and for Rattle and Vibration together with the 1/1-octave L
Zeq
spectrum.
10.3.1 Smileys
A smiley will be shown to the right of the project name if there are any issues with calculating
Noise Parameters, or displaying noise curves, see the overview in Table 10.1.
Table 10.1
Overview of Smileys
10.4 Saving Results
Measurements are saved and can be viewed later, in the same way as described for the Sound
Level Meter Project in Chapter 3.
Smiley Explanation Description
No Loudness for 1/1-octaves Select 1/3-octave
No L
eq
parameter logged Select a L
eq
spectrum for logging
Sound Field Mismatch for Loudness Set the Loudness parameter in Input in
accordance with the Sound Field Correction
Frequency bands outside Noise Curves Levels are lower or higher than any noise curve
band
Noise Curves require use of Mic. Select a microphone
Display Noise Curve with L
Zeq
Noise parameters are calculated but Noise
Curves can only be displayed together with L
Zeq
Noise Curve for 1/1-octaves only Noise parameters are calculated but Noise
Curves can only be displayed for 1/1-octaves
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