Flame detection for rapid response

There are several types of flame detector. The optical flame detector is a detector that uses optical sensors to detect flames. There are also ionisation flame detectors, which use current flow in the flame to detect flame presence, and thermocouple flame detectors.

    Suggested systems

  • UV flame detector
  • Ultra-Violet flame detectors detect fires and explosions within 3–4 milliseconds due to the UV radiation emitted at the instant of their ignition. The detectors are sensitive to a narrow wavelength so that false alarms can be avoided and have a fast acting response to flames up to 25m away.

  • Triple IR flame detector
  • Triple IR flame detectors compare three specific wavelength bands within the IR spectral region and their ratio to each other. In this case one sensor looks at the 4.4 micrometre range and the other sensors at reference bands above and below. This allows the detector to distinguish between non flame IR sources, and flames that emit hot CO2 in the combustion process. As a result, both detection range and immunity to false alarms can be significantly increased. IR3 detectors can detect a 0.1m2 (1ft2) gasoline pan fire at up to 65m (215ft) in less than 5 seconds.

    Most IR detectors are designed to ignore constant background IR radiation, which is present in all environments. Instead they measure the modulated part of the radiation. When exposed to modulated non flame IR radiation, IR and UV/IR detectors become more prone to false alarms, while IR3 detectors become somewhat less sensitive, and more immune to false alarms. Triple IR, like other IR detector types, is susceptible to blinding by a layer of water on the detector’s window.

Our clients include


“A great customer experience! The flexibility and speed of response from the project team, as well as the quality of the installation, commissioning and reporting was exceptional.”
Manager, London based fit out contractor

“We were extremely impressed with the way this project was delivered, being the lowest tenderer, it is normal place to expect small problems, not with DAS Fire, they completed the project on time and without variation. A great job all round and I would not hesitate to use DAS fire again.”
Director, Bristol Based main contractor

“DAS Fire have been servicing my fire Suppression system and when we had a system discharge there team had our system back up and running again in 48 hours, truly impressive.”
Centre Manager, Southern England

Do you require further information


DAS Fire have a network of Engineers throughout the UK and are able to service a wide range of systems from most manufacturers

For more information call : 0845 544 2316