As optical devices it is important that a flame detector be mounted properly enabling it to "view" the area of the potential flame. A flame detector must have a clear area of vision. The Sierra Monitor Flame Detectors including the 3100, 3200 and 3300 have 120o cone of vision allowing them to "see" over a wide area.

The Model 3200 and 3300 flame detectors mount flat to a surface with the mounting bracket provided with the units. The following table indicates which swivel or tilt mount should be used for each flame detector.