For the detection of all LIF-active diatomic flame species such as OH, NO, CH, CN, CO a dye laser is added to the multifunctional FlameMaster system. Wavelength tuning and peak finding of the selected LIF-transition is under complete DaVis control. Precise dye laser wavelength calibration is carried out automatically recording the LIF-excitation scan of the selected diatomic molecule. For concentration calibration of the LIF signals a calibration burner is used.