General Description:
The SIEMENS QRA55.E27 is a UV-sensitive flame detector designed for use in large industrial burners. It is suitable for high-temperature and harsh industrial environments, providing precise and stable flame detection.
Technical Specifications:
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Detection Type: Ultraviolet (UV)
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Spectral Sensitivity: 190 – 270 nm
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Supply Voltage: Powered via Siemens burner controllers
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Cable Length: Typically 3 m (custom lengths available)
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Connection Type: Threaded adapter (G1/2”)
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Cooling Options: Available with air or water cooling
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Operating Temperature: -20 °C to +250 °C (with cooling)
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Protection Class: IP65
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Housing Material: Stainless steel
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Compatibility: Compatible with Siemens LFL, LGK, and LMV series burner controls
Applications:
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High-capacity gas and oil burners
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Industrial boilers
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Refineries and power plants
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Petrochemical facilities
Advantages:
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High detection precision
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Operates in a wide temperature range
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Selective sensitivity to UV spectrum
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Rugged and durable construction
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Reliable in severe industrial environments