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燃烧器燃烧机电眼 火焰探测器 光电管BT-QRB1 Photoresistive flame detectors for use with Landis & Staefa burner controls, for the supervision of oil flames in the visible light spectrum. The flame detectors are used primarily in connection with burner controls for small burners. With this type of flame supervision, the radiation of oil flames in the visible light spectrum is used for generating the flame signal. The light-sensitive element is a photoresistor. When there is no light, the detector′s resistance is in the MΩrange. The resistance drops as the intensity of illumination increases (kΩrange). In contrast to the selenium photocell of the RAR... detectors, glowing firebrick in the combustion chamber can be detected. 此型号广泛应用于各个品牌的燃油燃烧器上，包括德国WEISHAUPT威索、意大利BALTUR百得、意大利ECOFLAM意高、瑞典BENTONE百通以及大部分国内品牌燃烧器。 网站标注价格为参考价，产品质量有保证，长年备有大量库存现货，随时要货，随时发快递。全国范围内1-3天可以到达。 如需了解更详细，请来电索取技术资料。
