User`s manual

NexSens Technology, Inc.
iSIC User‟s Manual 81
3.7 Filtering Data
iChart software allows data to be filtered before it is saved into the database. Note that this data
is filtered before it is put into the iChart database and will therefore not be able to be retrieved.
The advantage of using this kind of filter is to limit what data is sent to an ODBC connection or
WQData website. Data can be filtered in reports, post processing, after the data has been saved
into the database.
Click on the data logger to configure data filtering on and then select Project | iChart Data
Flag.
Click Add to open the Define Data Flag dialog box.
This dialog box allows you to replace values exceeding the parameter limit with text values, such
as Invalid reading, or Out of range.
Note: the value -100000 means the iSIC data logger was unable to communicate to a
sensor connected to it. Note that the value returned from the iSIC is not exactly -100,000.
Thus, to compare to this value, use greater than AND less than logic.