Product Overview
The Siemens RAR9 is a high-quality selenium photocell flame detector designed for the supervision of yellow-burning oil flames. It is specifically engineered to work with Siemens burner controls—such as the LAL, LAK, LAE1, and LFE1 series—to monitor the visible light spectrum of the combustion process. By providing precise flame supervision for intermittent operation, the RAR9 ensures that oil-fired industrial burners maintain the highest safety standards during every ignition and running cycle.
Key Features
- Selenium Photocell Technology: Utilizes a specialized selenium element that is highly sensitive to the yellow light emitted by oil flames.
- Intermittent Operation: Designed for combustion systems that require a controlled shutdown at least once every 24 hours to ensure safety logic integrity.
- Visible Light Detection: Focused on the visible spectrum, making it the ideal choice for liquid fuel applications where UV detection may not be required.
- Flexible Mounting: Available with different mounting options, including flanges and clamps, to ensure easy installation on a wide variety of burner housings.
- Dust-Protected Housing: The sensor is housed in a durable casing designed to protect the photocell from the dust and soot commonly found in industrial oil-burner environments.
- Cable Length Options: Typically supplied with integrated connecting cables of varying lengths to accommodate different burner sizes and control panel distances.
Core Advantages
- Proven Legacy Reliability: The RAR9 is a time-tested component, widely trusted for its stability and long service life in traditional oil-fired thermal plants.
- Optimized for Oil Burners: Because it specifically detects the luminous part of the flame, it provides a very stable signal for oil combustion, reducing the risk of nuisance shutdowns.
- Simplified Retrofitting: As a standard part for classic Siemens control sequences, it serves as a reliable direct replacement for aging sensors, ensuring minimal downtime during maintenance.
- Easy Maintenance: The straightforward design allows for quick cleaning of the sensor window, which is critical for maintaining strong signal strength in oil-fired applications.
