USL PSA-200U - Manual (Page 16)

Page 16 USL, Inc. PSA-200U Instruction Manual 1st Edition. October, 2004
foot-Lamberts. The PSA camera is normally
set to read luminance in the audience area.
If the camera is situated in the projection
booth, there is a vertical angle between the
audience view of the screen and the view
from the projection booth. This causes the
apparent centering of the light pattern on
the screen to move upward. If this appar-
ent centering error is not corrected, the
lamphouse adjustments will be in error. The
selection box in this section allows you to
input the approximate vertical angle be-
tween the audience view and the projection
booth view so that the error can be compen-
sated. The precise angle does not have to
be measured. If the angle that is estimated
and entered is within five or 10 degrees of
the actual value, the vertical centering will
be within a few percent.
Units
This section provides a choice between
English and metric units of luminance.
Exporting Files
The PSA-200U has single and multiple report
file handling features which includes the
capability of combining previously saved
report files and storing such combined files
in an export format (suitable for import into
spreadsheet programs such as Microsoft
Excel). This file handling feature couples the
PSA-200U cinema analyzer to the power and
utility inherent in data analysis programs.
Export Features
• Data export options are selected through
the “Export Options” dialog box under the
main menu option, “Settings”.
• Maximum number of report files selectable
for export (at one time) is 3000.
• Using the “Save As” option under “File”
on the main menu to save report files will
automatically add the number “1” to the
end of the file name. Subsequently, each
time the “Save As” option is used to save a
report file the numeric value will increment
by one. For example (Cinema1.rpt) would
be incremented to (Cinema2.rpt) this allows
easy identification of report files needed for
export into a “CSV” file format.
The available export options are explained
in the following paragraphs, in the order
that they appear in the ‘Export Options”
dialog box. (See Fig. 15 and Fig 16.)
File Type
The “File Type” option allows you to save
data from multiple reports to a single file.
For example, each time a luminance data
set is captured from the luminance screen,
a report file with the (.rpt) extension is cre-
ated. Each of these report files or data sets
can then be merged into a single report.
The data report file created uses the ex-
tension “CSV”. The “CSV” file is a “comma
separated value” file, which can be directly
imported into a spreadsheet program such
as Microsoft Excel, or a database program
such as FileMaker Pro.
Export Format
The format of the data file has several op-
tions including:
• All information is formatted on a
single row.
• All information is laid out in cells
in a horizontal row.
• Luminance information in a single
row.
• Field names are inserted into the
data structure.
• Data laid out in rows of 45 cells
instead of a 9X5 Cell matrix.
Exportable Data Fields
Each of the main data fields from the report
has the option of being included in the data
export file. The optional fields include:
• The report header, which in-
cludes the theater name, screen
name, date, technician and serial
number of the PSA used to take
the measurements.
• Luminance Data
• Weave and Jitter measurements