QRA Series
The Siemens QRA Series consists of ultraviolet (UV) flame detectors designed for monitoring the presence of flame in gas and oil-fired burner systems. These detectors identify UV radiation emitted by flames and transmit signals to burner control units to ensure safe operation. They are widely used in industrial heating systems to guarantee safe combustion control and to shut down fuel supply in case of flame failure.
The Siemens QRA Series models are used in gas and oil-fired burner systems to ensure safe combustion control, primarily in industrial boilers, steam boilers, thermal oil heaters, drying systems, and process heating lines. They are widely applied in industries requiring continuous combustion such as power plants, refineries, petrochemical facilities, as well as food and textile production. By continuously monitoring flame presence, these detectors enable safe shutdown in case of flame failure and play a critical role in maintaining both safety and process continuity in large-scale burner systems and advanced combustion automation environments.
