SPECTRA BC11 Flame Sensor is extremely robust and compact. It offers a host of features
that make it suitable for a wide variety of fuels. The robust design meets or exceeds
rigorous test standards and is 100% solid-state.
The SPECTRA PRO's frequency discrimination feature allows it to filter out background
radiation from hot, glowing boiler walls and also radiation interference from neighboring
burners or pilots. This discrimination capability ensures that when a flame is extinguished,
the relay trips immediately because there are no background radiation effects that
could provide a false flame on condition.