Section 5: Startup and meter configuration

Reference, Installation, and Operations Manual

June 2013

3-9000-743 Rev S

 

 

5.10Trend maintenance logs (Logs/reports Menu)

This feature is available in the Deluxe Edition of Daniel CUI and Daniel MeterLink.

The Trend Maintenance Logs dialog box allows you to merge two or more Maintenance logs together into a single Trend file in order to build a historical database of the performance of ultrasonic meters. Maintenance logs can also be merged with existing Trend files to form a new Trend file of the combined data. The Trend feature can be useful to see how the meter performance changes with changing flow conditions over time. It can also be useful to detect performance issues when the meter performance is deteriorating slowly over time but the flow conditions have not changed in a manner to account for it.

The Trend Maintenance Logs dialog box contain two list boxes. The tree list Microsoft Excel workbooks will show all the directories on your PC, but will only show files in them that are Maintenance Logs in Microsoft® Excel® format or Trend files and only if they are not currently open in Microsoft® Excel®.

To display all files in the Microsoft Excel workbooks directory tree, clear the Show only maintenance log and trend workbooks option. Add files to the Workbooks to trend list by either double-clicking on the file or by selecting the file and clicking Add.

You can add an entire folder by selecting the folder and clicking Add All or by double-clicking on the folder in the tree list. This will include only the files in this folder and not any files contained in subfolders. You can remove files from the Workbooks to trend list by selecting the file and clicking Remove. Click Remove All to clear the Workbooks to trend list of all files.

Maintenance logs or Trend files to be trended must all have matching column headings. This means the logs must be in the same units (i.e. U.S. Customary or Metric), must have the same pressure type (i.e. gage or absolute), and must have the same time base (1/sec, 1/min, 1/hr, 1/day). If not, an error message will be displayed stating the column headings do not match and the file will not be added to the Workbook to trend list.

Make sure any Maintenance Log file or Trend file that you would like to add to the Workbooks to trend list is not opened in Microsoft® Excel®. If it is open, Daniel MeterLink will not be able to add it to the list of files to trend.

The Show only maintenance log and trend workbook checkbox may not work properly on Windows® 2000 machines running SP4 or Windows® XP machines with Security Update for Windows® XP (823980).

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Trend maintenance logs (Logs/reports Menu)