By default, the Segmental Thermal Range is set to 4°F/-15.6°C. The Range Setting maybe adjusted prior to or during a scan. Adjusting the Range DOES NOT affect the thermal data recorded during a scan. Adjusting the Range adjusts the graph in which the thermal data is displayed during a scan. This setting is useful for patients whose readings do not fall within the default Range of 4°F/-15.6°C. The Range can be changed using the drop down in the Scan Settings.