Check the listing for details. QRA2 Burner Flame Sensor Flame UV Detector Compatible SIEMENS Flame Photocell. Color: Gold, Condition: New. Listed at 55.11 USD. package :1pc + (Free buckle) Flame detector is used to monitor the gas flame, yellow or blue fuel combustion flame and spark ignition of proofreading. This type of flame detector monitoring gas or fuel flame signals generated by the UV radiation emitted by flame. Radiation detector is a UV photocell with two electrodes, when it was the 190 ~ 190 nm range in spectrum of light will be lit, so start the flame detection of the current in the circuit. Technical parameters; UV The life expectancy unit: 10000 hours (At 50 degrees Celsius) Protection level: IP40 Weight:60g Transportation environment: IEC 60 721 -3-2 Internal conditions: Class 2K2 Mechanical condition: 2M2 Temperature range: -20...+60 Mechanical condition: 3M Running environment : IEC 60 721 -3-3 Temperature range: -20...+60 Internal conditions: Class 3 Type Summary Type reference Sensitivity Flange and clamp Terminal cover Spare UV tube QRA2 Normal Without Black AGR4 502 1131 0 QRA2(1) With QRA2.9 ⊃2;) Without QRA2M High Without Green AGR4 502 4065 0 QRA2M(1) With QRA10.C Normal AGR4 502 1131 0 QRA10M.C High AGR4 502 4065 0 Type reference Sensitivity Detector tube length Mains voltage Spare UV tube QRA53.C27 norma 125 mm AC 220-240 V AGR4 502 4065 0 QRA53.C17 AC 100-110 V QRA53.D27 high 125 mm AC 220-240 V QRA53.D17 AC 100-110 V QRA53.E27 norma 125 mm AC 220-240 V QRA53.E17 AC 100-110 V QRA53.G27 high 125 mm AC 220-240 V QRA53.G17 AC 100-110 V QRA55.C27 norma 69 mm AC 220-240 V QRA55.C17 AC 100-110 V QRA55.D27 high 69 mm AC 220-240 V QRA55.D17 AC 100-110 V QRA55.E27 norma 69 mm AC 220-240 V QRA55.E17 AC 100-110 V QRA55.G27 high 69 mm AC 220-240 V QRA55.G17 AC 100-110 V On Jan 28, 2024 at 07:35:18 PST, seller added the following information: