The Chart element is designed to provide a modernized and customizable graph-based display to allow for easy visual evaluation of readings captured by the eGauge meter. The Chart element is optimized for mobile browsers and small screens, with a minimal amount of visual clutter compared to the original graph view.

The upper chart portion displays a graphical representation of recorded values, plotted over time. The time period to display can be selected using the "Time period..." dropdown menu in the top right corner of the page. You can choose to set a custom date range or choose from a list of pre-set timeframes.

The horizontal bar separating the upper portion of the Chart from the lower Chart item List section can be used to resize the two sections by clicking and dragging it up or down.

Chart Item List

The lower portion of the Chart view is the chart item list where you'll find all chart items available for display in the chart.

To toggle a chart item on or off within the graph, click or tap the box to the left of the chart item name.

The chart item list also contains a summary value for that chart item. This value can be toggled between the following using the buttons at the bottom of the screen:

• Average - Average value (kW) of the chart item over the period selected in the graph.
• Accrued - Cumulative value (kWh) of the chart item over the period selected in the graph.
• Now - Current value (kW) of the chart item at the current time.

To view a graph of a specific chart item, tap or click on the chart item name. This will load a new graph containing only those values, along with some summary information at the bottom of the page. 

To return to the main chart view, click the "View All" button in the top left of the page.

To compare the currently selected data against another set of data (eg, this week's data against the previous month), use the "also show..." dropdown menu in the top right corner of the page. When a time frame is chosen in this dropdown, the graph will compare the more recent value to the same value relative to the time frame chosen.

Introduced in firmware v4.6 this dropdown also includes the option to highlight some basic demand information. You can choose to show max or min set or rolling demand. 

The demand interval used for this feature is set in the eGauge classic interface preferences editor which is accessed via the Main menu: Setup → Other Settings, then choose Preferences at the Left under the eGauge logo.

Viewing values at a specific point in time

Click on any point on the chart graph to view instantaneous register values at that specific point in time. Each item in the chart item list will display its value at the selected time.
Click the X at the top right corner of the chart item list to return to the main chart view. 

Clicking and dragging after selecting a specific point in time will shade in a period of time to inspect. Click the 'Zoom to selected range' button to zoom into the shaded area. 

Click 'Restore time period' to go back to the original set time frame of the chart.

Downloading Chart Data

Chart data can be downloaded for use in external processing or to create a backup or report. To do this, click or tap the menu icon in the top left corner of the graph, select Chart → Download chart data.

The resulting export will only contain values for Curve-type chart items. These values are paired with both a Unix timestamp and standard date and time value for ease of processing. The values themselves are instantaneous values which are are automatically presented in a granularity based on the time frame displayed in the chart.