PHOTOCELL QRB1A OILON

PHOTOCELL QRB1A OILON Siemens Photoresistive Flame Detector

The PHOTOCELL QRB1A OILON (Part / Model No: QRB1A, Siemens BPZ:QRB1A) is a high-sensitivity photoresistive flame detector engineered by Siemens for supervision of yellow-burning oil flames on Oilon oil burners and commercial boiler systems. Designed to operate in conjunction with Siemens burner sequence controllers (such as the CONTROLLER SIEMENS LAL 2.25 230V OILON or LMO / LOA series), the PHOTOCELL QRB1A OILON continuously monitors the visible radiation of the flame to ensure safe ignition and combustion operation.

Equipped with a compact plug-in photoresistive sensor head and a heat-resistant connecting cable, the PHOTOCELL QRB1A OILON reacts instantly to the light emitted by oil flames. Mounted directly on Oilon burner housing flanges, it provides essential safety shutdown signals to the burner programmer upon flame failure, preventing unburned oil accumulation in combustion chambers.

Key Features of the PHOTOCELL QRB1A OILON

• High Optical Sensitivity: Optimized for detecting visible light spectrum emitted by yellow-burning light distillate and heavy oil flames.

• Seamless Siemens Controller Integration: Works directly with Siemens LAL, LMO, LOA, and LFA series burner control units.

• Rapid Flame Failure Response: Detects flame loss within milliseconds, triggering immediate safety lockout to protect boiler plants.

• Frontal / Lateral Illuminance Sensing: Engineered with a clear protective lens housing for reliable flame light capture in burner tubes.

• Heat & Oil Resistant Construction: Compact sensor housing built to withstand high ambient temperatures and oil vapor in boiler rooms.

• Simple Push-in Mounting: Features a standard securing flange and plug-in body for fast insertion, positioning, and cleaning.

Primary Applications

• Oilon Oil Burners: Flame presence detection sensor for Oilon commercial and industrial light/heavy oil burner units.

• Commercial Boiler Systems: Optical flame monitoring in hot water boilers, steam generators, and thermal fluid plants.

• Marine Auxiliary Boilers: Flame supervision sensor for shipboard auxiliary boiler burners and incinerators.

Technical Specifications

Package Contents

• 1 × PHOTOCELL QRB1A OILON Siemens Sensor Unit with Cable

• Mounting Clamp & Instruction Sheet