FC7/FC11 Photocell

Flame detection in fuel oil burners occurs by means of sensors detecting the presence of flame through an electrical signal, which can be used by ignition and control devices. Generally, to detect the presence of flame in these appliances a photocell is used, which exploits the light generated by the flame itself. Photocells vary their ohmic resistance according to the light incidence; this property is exploited to detect the occurred flame generation in burners.