Larson Davis SoundExpert LxT, Руководство пользователя

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5-2
Tabbed Display LxT Manual
Selecting Options for Settings within Tabs
By using the
4
and
6
keys or the
8
or
2
keys to move
between options on tabs or pages, you can select options by
highlighting them. Once the desired value or option is
selected, press
5
(ENTER).
On some tabs, you can also select check box options by
highlighting them and pressing
5
.
Specifying Values for Settings within Tabs
Sometimes the
4
and
6
keys or the
8
or
2
keys may be
used to increase or decrease the scaling or level of some
settings within pages of the tabs, once the setting is selected.
In these cases, once the desired value is specified, press
5
.
Under Range Condition
When a measured level is in an under range condition, its
displayed level appears in gray rather than black.
Graph Scale Adjustment
The default amplitude (dB) settings for the graphic display
of sound pressure level versus time and frequency spectra
(1/1 and 1/3 octave) are as indicated below:
• Level vs. Time Graph: 20 dB to 140 dB
• Frequency Spectra, Normal Range: 20 dB to 140 dB
• Frequency Spectra, Low Range: -10 dB to 110 dB
To change the scaling of any one of these graphs, press the
Menu softkey to obtain the display shown in FIGURE 5-2.
FIGURE 5-2 Menu