The Eclipse 13093-3 Flame Rod is for use with Eclipse burners that feature flame rod detection and is typically used with Eclipse AH burners. The flame rod detectors can be trimmed to length in the field to sense the flame at varying operating conditions this is to account for varying flame lengths at low and high-fire to minimize possible nuisance faults.
Flame rods operate on the flame rectification principle as burner flames contain ions capable of conducting electrical current. Cleverly designed, flame rods are used on process burner pilot systems to confirm that a flame is present. When a flame rod is energised the current produces a positive charge that attracts the negative ions in a flame.