You can use custom parameters to create advanced alert conditions based on time-windowed data. In this example, we’ll show how to set up an alert to detect if your mass concentration total has remained static for 30 minutes.
Step 1: Add 30-minute parameters
Go to your device and select Edit.
Scroll down to the Parameters section.
In this example, we’ll use a Thiamis with an attached DustTrak device, so we’ll add the custom parameters under the DustTrak configuration. For all devices connected to a Thiamis, the parameters will be under that device's specific configuration.Add two new Statistical Parameters:
MAXIMUM of Mass Concentration Total over 30 minutes → name it MAX-MCT-30
MINIMUM of Mass Concentration Total over 30 minutes → name it MIN-MCT-30
These parameters calculate the highest and lowest readings for that time window.
Step 2: Create the alert
Go to your Alerts page and click Create New Alert.
Under Condition, select Function → Difference.
Choose your device (In this example, we would select our Thiamis).
For the first parameter, select MAX-MCT-30.
For the second device, select the same device again, but for parameter, select MIN-MCT-30.
Set the Comparison Operator to ≤ 0.
If your Device has a resolution range like ± 0.001 mg/m³, set the comparison operator and value to ≤ 0.001 instead. This ensures the alert triggers only when readings are effectively static for the entire 30-minute window.
Give the alert a name, assign any subscribers (if needed), and click Create New to activate it.
Example of condition configuration above
How it works
This alert compares the 30-minute maximum and minimum values for the same parameter. If both are equal (or within your selected tolerance), it means the reading has not changed during that time, indicating a static signal.
This is only one example of how you can utilize Environet Alerts, but there are thousands of other combinations for you to tailor Alerts to your needs. Find out more about Environet Alerts Here.