‎ Down Angle

 

The Down Angle, shown as the red arc in the image below, is defined as the angle between the flame detector's FOV center line and its bottom edge when looking at a side view.

 

Enter "45 degrees" into the Down Angle text box for your model and continue on to the next property.

 

Detect3D_Fire_and_Gas_Mapping_Flame_Detector_Field_of_View_DownAngle

Tutorial 10 - Figure 05 - Down Angle  for a FOV, side view pictured