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February 13, 2025
The PHOTOCELL RAR9 OILON (Model / Part No: RAR9, Siemens BPZ:RAR9) is a high-sensitivity selenium optical flame detector manufactured by Siemens Building Technologies and supplied for Oilon yellow-flame oil burner systems.
Stock: available
PHOTOCELL RAR9 OILON Optical Flame Detector
The PHOTOCELL RAR9 OILON (Model / Part No: RAR9, Siemens BPZ:RAR9) is a high-sensitivity selenium optical flame detector manufactured by Siemens Building Technologies and supplied for Oilon yellow-flame oil burner systems. Designed to monitor light radiation emitted during oil combustion, the PHOTOCELL RAR9 OILON converts visible yellow light energy directly into a microampere photocurrent signal for burner sequence controllers.
Interfacing directly with Siemens oil burner management units (such as LAL…, LME…, LOK…, and LAE… series), the PHOTOCELL RAR9 OILON ensures instant safety shutdown in the event of flame extinction. Encapsulated in a heat-resistant, protective casing with a plug-in terminal mounting base, it resists soot accumulation, boiler room vibration, and ambient thermal radiation on Oilon burner blast tubes.
Key Features of the PHOTOCELL RAR9 OILON
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Yellow Flame Spectral Sensitivity: Tuned specifically for detecting visible optical radiation emitted by yellow-burning oil flames.
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Direct Photocurrent Output: Converts detected light into a proportional microampere current signal evaluated by burner safety relays.
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Plug-In Base Mounting: Features a compact protective housing designed for quick insertion into burner sight ports and tube flanges.
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High Operational Reliability: Solid-state selenium cell construction maintains calibration stability over extended service intervals.
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Direct Siemens & Oilon Compatibility: Factory OEM component across Oilon oil burners utilizing Siemens burner control sequences.
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Dust & Soot Resistant Housing: Sealed optical casing protects sensitive internal photocell elements from combustion chamber residue.
Primary Applications
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Oilon Oil Burners: Flame supervision on Oilon pressure-atomizing light oil and heavy oil burner assemblies
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Commercial Heating Plants: Flame safety monitoring on hot water boilers, steam generators, and warm air furnaces
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Marine Auxiliary Boilers: High-reliability optical flame sensor for shipboard auxiliary boilers and waste incinerator plants
Technical Specifications
| Parameter Category | Specification Details |
| Manufacturer / Brand | Siemens Building Technologies / Oilon |
| Part Number / Keyword | PHOTOCELL RAR9 OILON (RAR9 / BPZ:RAR9) |
| Device Type | Selenium Photocell Flame Sensor |
| Sensing Technology | Selenium Photoelectric Cell (Visible Spectrum) |
| Spectral Range | 300 nm to 800 nm (Peak sensitivity in yellow spectrum) |
| Compatible Control Series | Siemens LAL…, LME…, LOK…, LAE… |
| Enclosure Protection | IP40 / Heat-resistant synthetic housing |
| Mounting Type | Flange or clamp mount on burner tube |
| Operating Temperature | -20°C to +60°C (-4°F to 140°F) |
| Dimensions (Diameter x Length) | 22 x 80 mm |
| Weight | Approx. 0.09 kg |
Package Contents
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1 × PHOTOCELL RAR9 OILON Flame Sensor Assembly
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Mounting Flange & Installation Datasheet