Technical Blog

Whilst the IR2 and IR3 types of Flame Detector can still work with contamination (from dust or dirt for example) on the sensor window, their working range and sensitivity can be reduced.

Cleaning the Flame Detector, if it is high off the ground, may be difficult and or expensive, this is where the Flame Detector Air Purge kit comes in.

FFE make an Exd End to End Beam Smoke Detector, Fireray 3000 and Exd versions of the Talentum Flame Detector, IR2, IR3 and UV/IR2.

All Exd detectors are designed to be used in what are termed as ‘Hazardous Areas’ (Zone 1) and as such, must be installed as per the guidelines for such areas. Here is some additional information to be aware of when testing FFE Exd Flame Detectors and Beam Smoke Detectors.

Exd Flame Detectors.

The internal laser, which is fitted to two of the current beam smoke detectors in the Fireray range is primarily used for alignment. However, it also play's a major role in fault finding.

 

Once aligned, if the beam smoke detector is not mounted to a solid surface or structure (see other Blogs), it can go out of alignment due to building movement.

The Fireray 3000 ExD is an End to End Beam detector which is designed to be used in a Hazardous Area (Zone 1 and Zone 2).

Zone 1 is defined as: ‘An area where ignitable concentrations of flammable Gasses, Vapours or Liquids are likely to exist under normal operating conditions’.

Zone 2 is defined as: ‘An area where ignitable concentrations of flammable Gasses, Vapours or Liquids are not likely to exist under normal operating conditions’.

All Talentum Flame Detectors have a fast response to Flame, but some are faster than others. These are the reasons why…

To go into a Fire condition, all Talenetum Flame Detectors need is A) an Infra-Red (IR) or IR and Ultra Violet (UV) light source and B) that light source must flicker.

The speed they respond to the light source depends on what type and how many sensors they have fitted.

Spark Detector (Rear Viewing). This Flame Detector only has one IR sensor and so will respond instantaneously to a flickering IR source.

‘Talentum Flame Detectors can see through glass, 4.3µM Types cannot’.

Placing Flame Detectors behind glass either to protect them or for convenience may seem like a good idea. If you have a factory where there is a spray booth for example, you think you may be able to protect the risk by either placing the Flame Detector in an office with the Flame Detector pointing through a window at the risk, or placing it in a glass fronted box in the area to be protected.

The biggest rival technology to Optical Beam Smoke Detectors for detecting smoke/fires in warehouses & large open areas is the Aspirating Smoke Detector (ASD).

While ASD is very sensitive in comms rooms and data centres (for which they were originally developed) in the warehouse and in wide open areas, this advantage is lost when compared to Beam Detection.

All 3 main types of Talentum Flame Detectors, IR2, IR3 and UV/IR2 have similar performance when it comes to detecting flames, but each has its own ‘specialist’ use for which it is best suited.

All 3 main types of Talentum Flame Detectors, IR2, IR3 and UV/IR2 have similar performance when it comes to detecting flames, but each has its own ‘specialist’ use for which it is best suited. Each type of Flame Detector can detector a flame from any source apart from Magnesium and Subpar which can be detected with special versions of the Flame Detectors. The Flame Detectors have a Fire and a Fault relay and need a flickering flame to activate.

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