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Description
This is a Brahma FT13/V flame sensor, a phototransistor type detector. It has a 620 mm cable length and is identified by SKU 18209048. It detects visible or near-infrared light emitted by a flame and sends a signal to the burner control to confirm that combustion has taken place.
Choosing and fitting
Sensors of this type are selected by matching the spectral response (visible or infrared), response time, cable length and connector type, and the mounting sleeve or fitting. They are commonly used on oil-fired and industrial burners where the flame is strongly luminous and the sensor must have direct line of sight to it. Before installation, confirm the optical window is clean and undamaged and the cable sheath is free of cracks or breaks.
Signs of failure
A scratched or contaminated optical window can weaken the signal and cause nuisance lockouts. The phototransistor can degrade over time, producing an output that the burner control no longer recognises. Check the cable sheath for cracks or breaks, as a damaged sheath can allow moisture ingress or a short circuit.
