Spectrex 40/40I Triple IR (IR3) Flame Detector – ATEX & IECEx Zone 1 Hazardous Area & SIL2

Spectrex 40/40I Triple IR (IR3) Flame Detector

Spectrex 40/40I Triple IR (IR3) Flame Detector

Flame Detector

Hazardous Area | ATEX Certified

Spectrex flame detectors are trusted and specified throughout the UK and international hazardous area industries to provide reliable flame detection in potentially explosive atmospheres according to IECEx and ATEX (Zone 1 & Zone 2).

The Spectrex 40/40I Triple IR (IR3) is a flame detector with a triple spectrum design, manufactured by Spectrex, that is able to detect fuel and gas fires at long distances with the highest immunity to false alarms. The 40/40I Triple IR (IR3) has the ability to detect a 0.1mgasoline pan fire at 65m in less than 5 seconds.

Spectrex 40/40I Triple IR (IR3) has new features including heated window, to eliminate condensation and icing; HART capabilities for digital communications; lower power requirements; and a compact, lighter design.

The 40/40I flame detector is weather resistant, highly dependable and SIL2 (TUV) approved to IEC 61508 due to increased reliability the flame detector now has a warranty period of 5 years.

Spectrex 40/40I Triple IR (IR3) Flame Detector Features & Benefits

  • Long distance detection and high false immunity
  • Suitable for arduous weather conditions thanks to heated window
  • Automatic and Manual Built-In-Test (BIT)
  • SIL2 – TUV approval
  • High Reliability – MTBF – minimum 150,000 hours
  • Multiple output options for maximum flexibility and compatibility – Relays (3) for Alarm, Fault and Auxiliary – 0-20mA (stepped) – HART Protocol for maintenance and asset management – RS-485, Modbus Compatible
  • 5 year warranty and user programmable via HART or RS-485
Spectrex Flame Detectors

Protect life and infrastructure in hazardous area industries and potentially explosive atmosphere with Spectrex flame and gas detectors from the SharpEye range.

SPECTREX 40/40I TRIPLE IR (IR3) Specification

Spectral Response Three IR Bands
Response Time Typically 5 seconds
Adjustable Time Delay Up to 30 seconds
Sensitivity Ranges 4 Sensitive ranges for 1 ft2 (0.1m2) n-heptane pan fire from 50 ft (15m) to 215 ft (65m)
Field of View Horizontal 100º; Vertical 95º
Built-in-Test (BIT) Automatic (and Manual)
Temperature Range Operating: -67ºF to +167ºF (-55ºC to +75ºC)
Option: -67ºF to +185ºF (-55ºC to +85ºC)
Storage: -67ºF to +185ºF (-55ºC to +85ºC)
Humidity Up to 95% non-condensing (withstands up to 100% RH for short periods)
Heated Optics To eliminate condensation and icing on the window

SPECTREX 40/40I TRIPLE IR (IR3) Detection range

Detection Range(at highest Sensitivity Setting for 1ft2 (0.1m2) pan fire) 
Fuel ft / m Fuel ft / m Fuel ft / m
n-Heptane 215 / 65 Kerosene 150 / 45 Methane* 100 / 30
Gasoline 215 / 65 Ethanol 95% 135 / 40 LPG * 100 / 30
Diesel Fuel 150 / 45 Methanol 115 / 35 Polypropylene Pellets 16 / 5
JP5 150 / 45 PA (Isopropyl Alcohol) 135 / 40 Office Paper 33 / 10

Spectrex 40/40 Flame Detector Series

Spectrex 40/40I Triple IR (IR3) Flame Detector

ATEX & IECEx Zone 1 Hazardous Area & SIL2

Ex approved for Zone 1 hazardous area location

Spectrex Flame Detectors

Spectrex Flame Detectors are ATEX & IECEx Certified.

  • ATEX
  • IECEx
  • FM/FMC
  • CSA

3rd party performance tested

  • EN54-10 (LPCB)
  • FM3260 (FM)
  • DNV Marine Approval


SPECTREX 40/40I TRIPLE IR (IR3) Applications

  • Offshore oil & gas installations
  • Onshore oil & gas installations and pipelines
  • Chemical plants
  • Petrochemicals plants
  • Storage tank farms
  • Aircraft hangars
  • Power generation facilities
  • Pharmaceuticals
  • Printing
  • Warehouses
  • Automotive
  • Explosives & Munitions
  • Waste disposal facilities

Emerson Process Management Acquisition With Spectrex

In 2015 Spectrex were acquired by Emerson Process Management. The acquisition has strengthened Emerson’s product offering as they now have a comprehensive line of flame, gas and ultrasonic leak detector solutions used for safety monitoring in the industry.

Spectrex Flame Detectors

Spectrex Flame Detectors : Infra-red (IR) & ultra-violet (UV) based flame detectors for quickly detecting flames from gas and fuel fires generated from hydrocarbons, hydrogen, metals, inorganic and hydroxyl sources.

 ➡ T&D Sales Team are able to support the specification and supply of their flammable and toxic gas detectors. Additionally, T&D are CompEx Certificated and competent in understanding hazardous area classifications and site requirements for the sale of explosion and flameproof equipment.

Crowcon Gas Detectors - Portable & Fixed

Crowcon Gas Detectors (Fixed & Portable Gas Detection Equipment). Single and multigas gas detection monitors for all industries, including Zone 1 & Zone 2 hazardous areas with ATEX & IECEx Certification.

Flame Gas Detection

Sensors, Detectors & Cables For Heat, Flame, Fire & Gas Detection

Flame, Heat, Gas Detectors & Detection Systems

ATEX Beacon

Hazardous area industries including offshore oil/gas platforms and FPSOs, onshore oil refineries, processing plants, pipelines, storage farms and LPG/LNG plants all utilise or produce a wide range of hazardous flammable liquids and gases that can be detected using correctly specified flame and gas detectors.

Detecting toxic and flammable gases requires the detectors to be classified and certified according to the specific IECEx or ATEX standard – we distribute flame detectors manufactured by Spectrex to operate in the harshest environmental conditions including self-contained stand-alone devices designed for direct connection to control and alarm systems or automatic fire extinguishing systems.

Our range of Hazardous Area Fire & Gas Detection System products also includes Explosion Proof Warning Systems – comprehensive range of intrinsically safe, flameproof and explosion proof alarm sounders, sirens, bells and horns, loudspeakers and beacons.

Detect Flame Heat Gas ATEX

Thorne & Derrick | Detecting Flame | Heat | Gas


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