Honeywell FS20X Plus UV/3IR Flame Detector

The FS20X Plus Ultra Violet/Triple Infrared Flame Detector improves upon Honeywell’s FSX series by adding WideBand IR and UV technology. It can detect a wider range of fuels, including hydrocarbon, non-hydrocarbon, and hydrogen fires, at greater distances while minimising false alarms in challenging conditions like rain, fog, and smoke.

Diversity of Detection

Able to see a variety of Hydrocarbon, non-Hydrocarbon, and Hydrogen fires in a single device. No need to specify or stock a speciality flame detector.

Operation in Harsh Conditions

The Honeywell FS20X Plus can operate effectively at temperatures from -55ºC to +75ºC (-67ºF to +167ºF) and at 99% relative humidity. SIL2 certification from TÜV.

Accessories Included

Sunshade (new design) and mounting bracket included. Choose from the standard or marine version bracket. The FS20X Plus can be installed on a variety of surfaces. Quickly and easily position the detector in optimal locations.

Extended Distance

Long-range, wide-angle sensors detect fires for a 1 ft2 (0.1 m2) n-Heptane fire at 275 ft (84 m) in about 5 seconds, or 90 ft (27 m) for a similar-sized hydrogen fire.

Decreased Nuisance Alarms

With the addition of the UV sensor to the existing 3IR, the FS20X Plus maintains sensitivity to flaming fires at extended ranges while also circumventing familiar sources of noise.

All-in-One Device

Communication options such as Modbus, HART 7, Relays, and mA (source, sink, and isolated) are included as standard. Multiple global certifications are listed on each device. No need for complex ordering codes.

Detecting Flames from a range of Sources

Honeywell FS20X Plus has one ultraviolet and three infrared sensor bands that monitor key wavelengths. Triple IR, especially the WideBand IR, can see flames that become almost invisible to single- or narrow-band detectors under poor conditions. The UV protects against nuisance alarms and broadens the range of detectable flammable fires.

• Ultraviolet from 0.18 μm to 0.26 μm
• Near-band IR from 0.7 μm to 1.1 μm
• Wide-band IR from 0.7 μm to 4.2 μm
• Long-band IR from 3.0 μm to 5.0 μm

Without relying on CO2 spikes like narrow-band detectors to detect emerging flames, Honeywell FS20X Plus can monitor the bands most likely to detect a fire.

Engineered for reliable Flame Detection

Honeywell FS20X Plus has dual microprocessors to ensure robust, reliable flame detection. The first manages high-speed digital sampling and signal-processing. The second handles sensor data, communications and self-diagnostics — plus added memory for event logs.

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