Data Display and Analysis Tool
DDAT is an analysis tool which aids the user in analyzing data which has been downloaded from data loggers. It is designed to plot or visually display data that has been downloaded from one of several supported data loggers or from VSLS.
Before using the program, the user must first connect the PC to a data logger and then download the data from the data logger. Once the data has been downloaded into a properly formatted file, the DDAT program can plot the data graphically so it can be used as a visual aid in analyzing the data.
The selected parameters (tags, magnification, window size, cursor position and custom filters) can be saved into one or more SETUP files for quick recall. These are also called “.ini” files (the files end in .ini).
Pre-determined filters can be used or created and run your own user-defined filters to quickly find “pumping” or “bobbling” tags. Filters can also be used to investigate the possible causes of incidents.
Note: The DDAT program does not download the data from the data logger(s). This is the user’s responsibility. Various data loggers have different methods for performing the download. Please refer to the instructions for the specific data logger you are using, or contact the manufacturer of the data logger for information on how to perform the download.
- The files which you download from the data loggers must be saved as plain-text ASCII files. (Word or WordPerfect format files are not acceptable. Saving with Wordpad may add extra binary characters to the file, which will cause DDAT to lose data.)
- Data before Jan. 1, 2000 cannot be plotted and must be changed to a date after Jan. 1, 2000. A maximum of 40 years of data may be displayed at one time and be between Jan. 1, 2000 and Dec. 31, 2099.