
1) Open Project or Refresh your Project
2) Add the device back that is associated with the deleted senors. If you only have 1 device in your project, just add it to your project again and the missing sensors will appear.
3) Save the Project
4) Click Project, Refresh - this will download the temperature logs for the device and/or sensors that were just added back, along with any existing sensors on your project
5) Add the Concrete Mix to the Sensors & Update the Location Name
6) Delete the sensor that you do not need. They will have 0 records.
7) Run the reports that you need.
8) If you are continuing to log temperature data on the project and you do not want the added back Sensors any longer, Delete the Sensors and Save the Project.