B&K 2250 Light Uživatelský manuál stáhnout pdf (Strana 187)

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101

CHAPTER 15

Tone Assessment Option BZ-7231 – 1/3-octave Method

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15.5 Measuring

15.5.1 Result Display

Tone assessment is not performed until the Tone parameter is selected above the spectrum.

(This is done by tapping one of the parameter fields in the two lines above the Spectrum

display and choosing Tone from the drop-down menu.) Once selected, tone assessment is

carried out on the selected spectrum. The results are updated during the measurement.

Fig.15.8

Selecting the Tone

parameter above the

spectrum display

On the Results display, a blue marker is set at the top of each detected band with a tone.

Differences to the left and right of the frequency band selected by the main cursor are shown

(on the left and right) in the tone parameter panel above the spectrum (Fig.15.9). The main

cursor is moved using either the hard keys or the stylus.

Fig.15.9

The differences to the left

and right of the selected

frequency band are

shown in the tone

parameter panel – in this

example, there is a

11.4 dB difference to the

left and a 3.9 dB

difference to the right

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