Telemetry2U Charts and Sensor Data

Select sensors, define a reporting period, compare data series, zoom into events, and review statistics, audit limits, and alert markers.

3.1 - Customising Charts

The Charts page displays historical sensor data over a selected period and can compare several sensors on one or more charts.

The page is available to all signed-in users, but each user can only view nodes assigned through their user access settings . When opened, the Charts page displays the last 24 hours of data for the most recently viewed chart.

Select Chart Settings at the top of the page to open the chart configuration panel. From this panel, you can select sensors, set the reporting period, enable zooming, and control how many charts are displayed.

Chart Settings panel showing node, sensor, date range, zoom, and maximum chart controls
Open Chart Settings to choose the data series, reporting period, zoom behaviour, and number of charts shown on the page.

Configure the Chart View

Choose a Node and Sensors

Select a Node containing the sensors you want to plot. The available sensors for that node will then appear below. Use the checkboxes to choose each sensor to display.

Set the Time Period

Enter a custom range using the From and To date and time controls, or use a quick-select button for 1 day, 2 days, 1 week, 2 weeks, or 1 month. A chart can display up to 10,000 records.

Enable and Reset Zoom

Select Enable Zoom to zoom on computers and smartphones. Pinch on a touchscreen, use the mouse wheel, or left-click and drag across an area of the chart. After zooming, select the Reset Zoom button button to restore the full view.

Control the Number of Charts

Use Max Charts to choose how many charts appear on the page. When more sensors are selected than the maximum number of charts, multiple sensors are plotted together for comparison.

Configured sensor charts showing multiple data series and a statistics table below
Selected sensors are plotted over the chosen period, with summary statistics presented beneath the charts.

Statistics and Audit Limits

The statistics table at the bottom of the Charts page summarises each selected sensor over the displayed period.

Standard Statistics

Each sensor shows its Current, Minimum, Maximum, Average, and Standard Deviation values.

Audit Report Limits

If a displayed sensor is included in an audit report, its Lower Limit and Upper Limit are also shown in the statistics table.

Data Points and Alert Markers

Standard data point marker

Standard Data Point

A circular marker represents a normal sensor reading on the chart.

Alert data point marker

Alert Data Point

A triangular marker indicates that the sensor was in alert when the reading was transmitted, or had entered an alert state at that time.

Inspect an Individual Reading

Hover over an individual circular or triangular point to display its exact sensor value and transmission time.

Chart tooltip showing a sensor value and transmission time
Hover over a data point to inspect its recorded value.

Continue Learning

Real-Time Dashboards Monitor current readings and configure dashboard widgets for day-to-day viewing. Reports and Data Export Review tabular data, annotations, period statistics, and downloadable records. Audit Reports Configure audit limits and produce formal records for monitored sensors.