GFS2102™ OPERATION AND MAINTENANCE MANUAL
© 2007 DH Instruments, a Fluke Company
Page 62
[Options]
,
[Data File]
selections are activated (see 5.2.2.3 and 5.2.2.4). This
allows test notes to be entered and empty test files to be deleted.
When a Data File is created in [Run Manual Test] mode, data points can be
taken without the constraints of a specific test sequence, however, the resulting
Data File is identical to files generated with the [Run Test] option. Therefore, reports
and plots can be created from the Data File.
Using any of the automatic data logging options can result in very large Data
Files. These are files with significantly greater than 1000 data points per flow
accumulation. GFS Tools was not intended to manipulate such files. Lower
performance PC’s will experience significant delays in generating reports and plots of
large Data Files. Therefore, use of the plotting and reporting functions with very large
Data Files is not recommended. Instead, export the Data File to a spreadsheet
application for further analysis.
The table below describes each of the data acquisition toolbar options in detail.
Table 14. <Control>
Toolbar, Data Acquisition Options
ICON
DESCRIPTION
Create Data File
Press this button to create a new Data File. A standard windows filebox
allows the selection of the Data File name and location. The choices in
[Options]
,
[Data File]
determine the default file naming convention and file
location. It also specifies whether or not to automatically name the file and
avoid the filebox prompt.
A separate Data File is created for every active DUT. If there are no DUTs,
only one Data File is created and no DUT information is logged.
Log a single data
point
Logs the instantaneous output of all devices to the Data File. This is identical
in function to using a 0 averaging time in a test. All non-automated devices
must have their outputs entered in the
<Manual Data Entry >
window.
Average and take
1 point
Average all devices according to the active averaging method. This is
identical to averaging data during a test. Both automatic and manual
averages can be used to average the data. The drop down arrow displays a
menu that lists the automatic and manual averaging options. The option with
an “*” preceding it is the active averaging mode.
To change the automatic averaging time select it in the menu and enter the
desired averaging time in the input box that follows. Data can be
automatically averaged from 1 to 9999s.
Figure 35.
Manual Averaging Options