China High Quality QRB1 Flame Detector Electric Eye Photocell Burners Spare Parts
Summary:
Siemens automatic combustion furnace special ultraviolet flame detector,,,, for monitoring the flame of gas and oil used to monitor the flame of gas and oil. . . . QRA... and this data sheet are intended for use by original equipment manufacturers ((((OEM)))) who use QRA... in their products.
Function: In this monitoring mode, the UV radiation generated by the gas and fuel flames forms the flame signal. The radiation detector is a UV-sensitive chamber with 2 electrodes that passes radiation in the wavelength range 190...270 nm. The shot ignites, creating a current in the flame detector circuit. The UV chamber does not respond to post-heated refractory bricks or sunlight in the combustion chamber.
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Model
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QRB1
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Usage
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Flame detection for oil or gas
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Use The QRB... are designed for the supervision of yellow-burning oil flames in connection with burner controls type LAL..., LME7…, LMO..., LMV… and LOA… They are suited for frontal or lateral (90°) illumination. The maximum spectral sensitivity of the QRB… is about 600 nm, thus giving full consideration to the maximum level of visible light radiation of yellow-burning oil flames. Since the QRB… also acquires certain parts of the radiation spectrum of other light sources (boiler room lighting, solar radiation, etc.), the standard regulations regarding safety in connection with extraneous light still apply.
China High Quality QRB1 Flame Detector Electric Eye Photocell Burners Spare Parts
Photo Resistive Flame Detectors QRB1... QRB3... Photo resistive detectors for use with Siemens burner controls, for the supervision of oil flames in the visible light spectrum. The QRB… are used primarily in connection with oil burner controls in intermittent operation. The QRB... and this Data Sheet are intended for use by OEMs which integrate the flame detectors in their products.
Mechanical design Compact photo resistive flame detector with infused 2-wire thermoplastic cable. The detector is available with normal sensitivity, high sensitivity, or selected higher sensitivity, with or without flange and clamp or soft plastic plug (refer to «Type summary»). Flame detector without soft plastic plug. This type of detector is fitted with the help of a flange. A guide groove in the securing flange and a cam on the detector clamp ensure vibration-free mounting and make certain that the photo resistive flame detector is always correctly sited towards the flame. Flame detector with soft plastic plug. For mounting this type of detector on the burner, all that is required is a hole with a lateral groove (refer to «Dimensions»). The sealing and securing ribs of the soft plastic plug hold the detector firmly in the hole. The guide spring guarantees correct alignment of the photo resistive flame detector with the flame. Small flange, 21 mm spacing, plastic version Large flange, 36 mm spacing, plastic version Clamp, plastic version The detector is supplied with a metal protective tube having an external diameter of 17 mm. This type of detector is always secured with a flange and a clamp (refer to «Accessories QRB3…»). Flange, metal version Clamp, metal version General QRB1...A QRB1...B Accessories QRB1… QRB3... Accessories QRB3… 4/9 Building Technologies Division CC1N7714en 23.11.2017
China High Quality QRB1 Flame Detector Electric Eye Photocell Burners Spare Parts
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