Norsonic NOR150, Instruction Manual

Page: 135 / 216

119 Norsonic Nor150
Instruction Manual
The views
The instrument provides different views to represent
data. The content inside the views will depend on the
selected measurement standard. To change graph
level limits, simply tap and drag on the graphs as
illustrated in Figure 21.36. To change the range of the
graphs, tap and hold the on the graph as shown in
Figure 21.37. Select range from the context menu.
Scope view
The scope view provides a graphical representation of
the measurement surface for the Total scope and the
Surface scope, as discussed in the previous section.
When viewing the total scope, scope view presents the
A-weighted values for the whole measurement surface
along with the currently selected surface. For a surface,
the scope view will show the A-weighted values for the
surface, and the currently selected segment. The scope
view for the total scope is shown in Figure 21.38. In
Figure 21.39, the scope view for surface Left is shown,
accessed by double-tapping the Left segment in Figure
21.38.
Selecting a surface or segment may be done either by
the cursor keys or by tapping the desired surface or
segment. Press
FUNC
to change which functions that
are presented on the surface or segment, or use
TBL
to
switch to a tabular format, as shown in Figure 21.40. It is
also possible to navigate in the table by double-tappig
an entry, and using the
Back soft button.
The colour frames around surfaces and segments
indicate the current status of a surface or segment.
Depending on the standard, different conditions
apply. No colour (black) indicates that the surface/
segment or underlying segments are not measured at
all. Red indicates that not all segments are completely
measured. Green indicates that all segments are
completely measured. The bold black frame indicates
which segment or surface is currently selected.
For segments, an “H”, “V” or “H+V” are indicated for
scanning standards. These are used to indicate whether
the segments has been measured by horizontal, vertical
or both scanning directions.
Idle view
Idle view is only available for the segment scope,
providing live data for sound pressure and sound
intensity using the fast time constant. The view is
shown in Figure 21.41.
Running view
This is the view which appears when a measurement
is running. Leq, Ieq and IfSPL (time constant fast) is
displayed. Figure 21.42 shows how the running view
may look.
NOTE: In running and Idle, the A, C and Z values
are not calculated from the 1/3 octave bands. The
values update to the correct level once the
measurement is topped.
Simple view
If inside a scope view, pressing the
VIEW
button
will bring you the simple view representation for the
current scope. For the surface scope, this is the sum
and average of all segments inside the corresponding
surface, and for the total scope, simple view presents
the sum and average of all segments in the project.