You can easily modify the time duration for the data plotted on the Historical Data Viewer page using the duration drop-down list.
1. Click the duration drop-down list (to the immediate left of the Select Start Date button).
2. Select a duration from the list.
The time scale (displayed immediately beneath the graph) displays the intervals you selected from the duration drop-down list. For example, if you selected "1 day", the time scale will display a 24-hour period. If you selected "90 days", the time scale will display a 90-day (3 month) range.
You may select a specific data upon which to view logged data using the Select Start Date button in the tool bar on the Historical Data Viewer page. Please refer to Select a Date Upon Which to View Logged Data on the Historical Data Viewer Page for instructions.