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Description
The Brahma FD2/N 18208026 is a UV flame sensor designed for flame monitoring in gas and oil burners. It operates on the principle of ultraviolet flame detection, using a photocell as the sensing element. The sensor requires a supply voltage of 22–24 V and comes with a cable length of 600 mm. It is compatible with burner control systems and is manufactured in Italy.
Further details
Operating Principle
detects ultraviolet radiation emitted by a luminous flame
Choosing and fitting
When selecting a replacement flame sensor of this type, ensure that the spectral sensitivity range, response time, connector type, and cable length match the original part. The mounting sleeve must also fit the existing installation. Before ordering, compare the manufacturer code with the original part to confirm compatibility with the burner control.
Signs of failure
Common failure modes for UV flame sensors include a dirty or fogged quartz window, a weakened photocell that no longer responds reliably, or a damaged sheath exposing internal wiring. When a sensor fails, the burner control may lock out and close the fuel valves due to no signal confirming combustion. Check the sensor's window for soot or residue and ensure it has a direct, unobstructed view of the flame.
