The Siemens QRA2 is a UV flame detector designed for monitoring gas flames and yellow- or blue-burning oil flames, as well as for ignition spark proving in combustion systems. It is compatible with various Siemens burner control units, including the LFL, LFE, LME, and LMV series.
Key Specifications
Detection Type: Ultraviolet (UV)
Sensitivity: Normal
Operating Mode: Intermittent
Terminal Cover Color: Black
Protection Class: IP40
Operating Temperature Range: -20°C to +60°C
Weight: Approximately 60 grams
Average UV Cell Life: 10,000 hours at 50°C
