Setup: Define an investigation, e.g., to set a sensor’s state or change a sensor’s range, alter the mode of            logging, and the Start or Stop conditions needed to run your investigation.


Start: To begin recording, click on the Start icon.


Stop: During logging the icon will alter to Stop and show a red square. Click on this icon to stop data being         recorded.


Overlay: If you wish to graph a new run of data, without the earlier set of data being hidden, select Overlay         before you click on Start.