B&K 2250 Light, User Manual, Page: 131 / 208

CHAPTER 13
Tone Assessment Option BZ-7231 – 1/3-octave Method
121
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 1: 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.
13.3.4 Signal Recording
If a valid license for the Signal Recording Option BZ-7226 is present, it is possible to record
the sound while measuring. (Refer to Chapter 12 for information about the Signal Recording
Option.)
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