B&K 2250 Light Manuale Utente Pagina 129

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CHAPTER 13
Tone Assessment Option BZ-7231 – 1/3-octave Method
121
13.3.3 Setting up the Measurement using the Default Setup
Select the Tone parameter above the spectrum and start the measurement by pressing the
Start/Pause pushbutton . If the selected setup parameters do not comply with the selected
tone assessment method, the following pop-up window will be displayed:
Fig.13.4
Pop-up window for tone
measurement setup
check
The pop-up window can be de-activated for the rest of the measurement session. To activate it
again, you will have to reload the template or restart your analyzer. This automatic check is
deactivated when the Tone Assessment parameter is set to Off in the Setup menu.
To reset all the relevant parameters to the default setup, tap the OK button. (The default setup
includes preset parameters that comply with the selected standard. These are described in Table
13.1.) To measure with the settings you set up manually, tap the Cancel button.
Note: Even if you have set the Tone Assessment parameter to On (Setup menu), the calculation
is not carried out until the Tone parameter is selected above the spectrum.
Table 13.1
Default parameters used
by the automatic
measurement setup
check
Setup Parameter Default Value
Standard: ISO 1996-2, Annex D
Adjustment 3 dB
Last band in low frequency range 125 Hz
Last band in middle frequency range 400 Hz
Level difference low 15 dB
Level difference middle 8 dB
Level difference high 5 dB
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