ABB SF81O-LOS-IR-TL Uvisor Flame

Product Description

The ABB SF810-LOS-IR-TL Uvisor Flame Detector is a sophisticated monitoring device engineered for the rigorous demands of industrial combustion systems. Utilizing advanced infrared sensing technology, this unit provides precise flame detection and reliable safety monitoring. It is specifically designed to operate in harsh environments, ensuring the stability of industrial burners and boilers through rapid signal processing and robust construction.

Technical Specifications

• Model Number: SF810-LOS-IR-TL

• Manufacturer: ABB

• Product Type: Uvisor Flame Detector

• Sensing Technology: Si Photodiode (Peak spectral response at 920 nm)

• Detection Method: LOS (Line of Sight)

• Power Supply: 24 VDC (Operating range 18-29 VDC)

• Power Consumption: 3.6 W typical, 4 W maximum

• Response Time: Adjustable Flame Failure Response Time (FFRT) from 0.2 to 4 seconds

• Analog Output: Galvanically isolated 4-20mA (±5% accuracy)

• Communication: Profibus (12 Mbit/s) and Modbus (115.2 kbit/s) via dual RS-485 ports

• Housing Thread: 1" NPT male

• Protection Class: IP66, IP67 (CEI EN 60529)

• Operating Temperature: -40°C to 70°C (-40°F to 158°F)

• Dimensions: 257 mm (L) x 138 mm (H) x 175 mm (W)

• Weight: Approx. 1.3 kg

Optical Sensing and Signal Processing

The ABB SF810-LOS-IR-TL utilizes a Silicon (Si) photodiode sensor optimized for infrared detection. This allows the unit to accurately distinguish between the flicker frequency of a flame and background radiation. The device features a user-friendly interface with pushbuttons and a 3-digit LED display for easy local configuration. For advanced integration, it supports dual RS-485 ports, enabling communication via Profibus or Modbus protocols, which facilitates seamless connection to Distributed Control Systems (DCS) or Programmable Logic Controllers (PLC).