The Siemens QRA10M.C is the high-sensitivity UV flame detector in the QRA10 range, the counterpart to the normal-sensitivity QRA10.C, designed for supervising gas flames, yellow- or blue-burning oil flames, and ignition spark proving in installations where the flame signal is weaker or the detector sits further from the flame. It shares the same die-cast aluminium housing with a bayonet-fitting 1" mounting coupling, a connection for cooling air, and a removable Pg cable gland. Rated IP54 for up to 50 mbar combustion chamber pressure with a nominal UV cell life of around 10,000 hours at 50°C, it is made in Germany by Siemens for use with a wide range of burner controls including the LFL, LFE, LGB, LMG and LMV series via AGQ adapters.
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