Custos Aeris - Example Measurement Data

You can choose between three different example scenarios below

Example 1:	It shows a typical situation in North Rhine-Westphalia in the period from mid-December to early January.
Example 2:	It shows a situation in cold regions, simulated by measurements within a refrigeration chamber at -18 °C.
Example 3:	It shows a setting in a greenhouse with increased humidity and temperature falling short of the dew points.

Once you have chosen an example scenario and confirming it by pressing the "show" button, you can choose between the following five diagrams Dew Points, Temperatures of glass surfaces, Air temperatures, rel. Humidity, Battery Voltage.

Below the diagrams you will find a download area in which the measurement data can be downloaded as a CSV file and the diagrams as JPG files. The image files are stored as an overall view and as monthly diagrams.

After switching to a different example, "show" button must be pressed again in order to load the diagrams with the data of the newly selected example.

Functions of the diagrams

Read measuring time and measured values

You can move the mouse pointer over the lines to get the measurement time and the corresponding measured values.

Zoom in Area

Highlight areas with the mouse to zoom into this area (both vertical and horizontal). The other diagrams are zooming automatically to the selected area.

Reset diagram

Double-clicking with the left mouse button in a diagram returns to the initial diagram.

Highlight Line

Diagram lines are highlighted when they are touched with the mouse pointer.

Freeze a Line

Left-clicking on a highlighted diagram line will freeze it. Left-click again to release the line.

Deactivate a Line

Individual lines can be activated or deactivated by using the checkboxes below the respective diagram.

Move the Diagram View

You have zoomed in an area and now want to move the area horizontally or vertically: To do this, hold down the Shift key and move the mouse with the left mouse button pressed in the desired direction.

Descriptions of the diagrams

Dew Point Monitoring

The diagram "Dew Point Monitoring" shows at a glance whether there is a dew point or condensate formation. For this purpose, the temperature difference between the temperature currently measured at the windows and the calculated dew point temperature is formed. If the difference between the two temperatures is positive, there is no formation of condensation. Negative values indicate condensation.

To illustrate this clearly, the red limit line is drawn in the diagram. All values above the limit line show that there is no dew point undershoot. All values below the limit line show that condensation is present. Because this is a temperature difference, all values are displayed in Kelvin.

Temperature of Glass Surfaces

The "Temperature of the glass surfaces" diagram shows the three temperature measuring points on the glass surfaces. The glass surface temperatures are measured without contact with infrared sensors. The IR sensor in the main module measures the temperature on the stained glass surface inside the church interior. The two IR sensors in the air gap module measure the temperature on the surface of the stained glass and the protective glazing in the air gap. All temperatures are measured and displayed in degrees Celsius. The area of the temperature measuring point is determined by the distance between the IR sensor and the glass. The radius of the temperature measuring point is equal to the distance between IR sensor and glass.

Example: The distance between the IR sensor and the glass is 1 cm. Using the formula for the circular area: A = π * radius² , the measuring surface can be calculated. Thus in our example 3,14 * 1 cm² = 3,14 cm² measuring area.

Air Temperature

The air temperatures are measured in the interior of the church with the main module and measured in the air gap between church window and protective glazing with the air gap module. All temperatures are measured and displayed in degrees Celsius.

Relative Humidity

The relative humidities are measured inside the church with the main module and in the air gap between the stained glass window and the protective glazing with the air gap module. The relative humidity describes the ratio of the amount of water vapor which is actually present in the air to the maximum possible amount of water vapor at the respective temperature.

Dew Points

The dew point diagram displays the respective dew point temperatures. The dew point describes the temperature at which the water vapor contained in the air would settle as dew (condensate) on the protective glazing window. The dew points are calculated at the temperature measuring points on the glass surfaces.

Battery Voltage

In this diagram you can see the battery voltage of your system. The working range of the system is in the range of 3.3 V to 4.1 V.