Efficiency range chart with background

Who it’s for

Plant operators, maintenance engineers, and energy managers ask “can I see efficiency history against performance zones?” The background variant adds a full-card color signal for wall-mounted control room displays.

What it does

A device reporting efficiency = 75% renders a time-series area chart overlaid on horizontal color bands on a card whose entire background fills with the current performance color: red for Low (below 40%), orange for Moderate (40–60%), green for Good (60–80%), and blue for Excellent (above 80%).

• Full-card background color makes current efficiency performance level readable across a room without reading the number
• Color-banded area chart shows efficiency trend against performance zone boundaries simultaneously
• Data zoom slider lets operators focus on any time window within the displayed period
• Shows one asset’s data per widget; add multiple widgets to monitor different machines side by side

How to set up

Data keys

Key	Role	Type	Description
efficiency	Chart series	Timeseries	Efficiency percentage (0–100); change the key name to match your device’s telemetry key

The widget ships with a simulated function datasource key labeled Efficiency, so it draws random values until you point the datasource at a device and rename the key.

To point it at your own device: open the dashboard in edit mode, open the widget’s Datasources, pick the entity or entity alias, and replace the function key with the key your device reports.

Value ranges

Range	Level	Color
0–40	Low	Red
40–60	Moderate	Orange
60–80	Good	Green
80–100	Excellent	Blue

How to customize

• To change the performance thresholds — open the widget settings and adjust the band boundaries.
• To change the background and band colors — edit the color for each performance band in the widget settings.
• To rename the units label — change the Units field in the widget settings if needed.

Tips

• On a control room wall display, the colored background announces the current performance status from across the room while the banded chart tells the story of how the asset got there.
• Use this card on a large monitor dedicated to a single production line where trend history and current status must both be legible from a standing position.
• Use consistent performance colors across all efficiency widgets.