NSRTW_mk3
User’s Manual
22
7.4.2
File Save
Pressing the
Save File
button saves all the records downloaded from the instrument to a file on the PC.
In addition to the whole contents of the recording memory the file also contains ancillary information,
such as calibration, instrument information…etc.
The file is saved in a proprietary format with the extension
.cil
.
By default the file is saved with a name that contains the
User-ID
of the instrument, if any has been set,
as well as the present date and time.
7.4.3
File Open
Pressing the
Open File
button recalls all the records previously saved to a
.cil
or
.wlg
file. The function
works very much like the
Instrument Download
function, except that the data comes from a previously
saved file.
Two types of files can be opened and displayed:
•
.cil
This type of file is created by the
Instrument_Manager
application. It contains all the
data that has been downloaded from the instrument.
•
.wlg
This type of file is created by the
Instrument_Listener
application. It contains data that
is sent by an instrument over the network. When a
.wlg
file is opened the
Instrument_Manager
application asks to convert it to a .cil file.
The
Source
field shows the
User-ID
of the instrument the data comes from.
That function works even when no instrument is connected to the PC, so it can be used to examine
data that was recorded elsewhere and sent to the user as a file.
7.4.4
Exporting Data
The data of the record being presently viewed can be exported for further display or processing. The
data is exported to a tab-delimited text format that can be imported in
Excel
and other spreadsheet
applications.
7.4.5
Global Level Calculations
The application automatically calculates the global levels or equivalent dose corresponding to the
displayed data.
The global values can be calculated according to several methods. At the time of this writing we offer
the linear ISO (Q=3) method, as well as the OSHA (Q=5) method. Other methods may follow.
These global values are calculated from the LEQ curve (white curve). In order to obtain the global
values, the LEQ MUST BE among the recorded statistics.
The global values are calculated from the visible part of the graph only. Play with the zoom and pan
functions to eliminate portions at the beginning and end of the recording from the calculation.
