Pressure range chart with background

Who it’s for

Process engineers, plant operators, and maintenance technicians ask “can I see pressure history against operating zones?” The background variant adds a full-card color signal for wall-mounted control room displays.

What it does

A device reporting pressure = 8 bar renders a time-series area chart overlaid on horizontal color bands on a card whose entire background fills with the current operating level color: blue for Low (below 5 bar), green for Normal (5–10 bar), orange for Elevated (10–15 bar), and red for High (above 15 bar).

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

How to set up

Data keys

Key	Role	Type	Description
pressure	Chart series	Timeseries	Fluid pressure in bar; change the key name to match your device’s telemetry key

The widget ships with a simulated function datasource key labeled Pressure, 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 (bar)	Level	Color
0–5	Low	Blue
5–10	Normal	Green
10–15	Elevated	Orange
15+	High	Red

How to customize

• To change the operating thresholds — open the widget settings and adjust the band boundaries.
• To change the background and band colors — edit the color for each operating band in the widget settings.
• To change the units — change the Units field in the widget settings to match your pressure sensor’s output.

Tips

• On a control room wall display, the colored background announces current pressure status from across the room while the banded chart tells the story of how pressure has behaved over the period.
• Use this card on a large monitor dedicated to a single process system where both trend history and current status must be legible from a standing position.
• Use consistent operating colors across all fluid pressure widgets.