B&K 2250 Light Manual do Utilizador descarregar pdf (Página 109)

CHAPTER 11

Logging (Optional Module)

101

11.3.1 The Profile View

The Profile view displays a profile of a logged broadband parameter (dB versus time). This is

very convenient when marking sound categories on-line or annotating the measurement. See

Fig.11.2.

Fig.11.2

Profile View (showing

extended status field)

Status Field

The Status Field has been extended to include an extra line of information below the two

existing lines of information covered previously in the Sound Level Meter and Frequency

Analyzer (see Fig.11.2).

This extra line of information allows you to:

• Select whether the results of the Total measurement from the Logged measurement, or from

the Logged(100 ms) measurement are displayed. Select Total to display the measurement

parameters of the Total measurement in all the views – the Broadband and Spectrum views

will then display parameters or spectra similar to the Sound Level Meter or Frequency

Analyzer. (The Profile View will be empty, because the Total measurement contains only a

single set of parameters). Select Logged to display the measurement parameters from the

logging intervals. The cursor in the profile selects which logging interval is displayed in all

the views. Select Logged(100 ms) to display the L

Aeq

, L

or L

in the profile from the

100 ms logging intervals. This setting does not display spectra or parameters in other views

• View the start time of the measurement (for Total) or the start time of the current logging

interval (for Logged or Logged(100 ms) if measuring and the profile is not frozen) or the

start time of the logging interval pointed out by the cursor. Tap on the start time in any of

the views to select data from another logging interval

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B&K 2250 Light Manual do Utilizador Página 109