Spectrex Flame Detectors | ATEX & IECEx Hazardous Area Flame Detection Systems

Spectrex Flame Detectors

Spectrex Flame Detectors

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Spectrex Detectors

Thorne & Derrick International are suppliers of Spectrex Flame Detectors for the accurate detection of Flame in potentially explosive atmospheres and hazardous area locations according to ATEX and IECEx classifications – Spectrex detectors are Hazardous Area Approved (FM/ATEX/IECEx/CSA and more) for location in Zone 1 & Zone areas (ATEX) and 3rd party Performance Approved (EN54-10, FM, DNV) for onshore and offshore flame detection.

Hazardous are 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 both flame and gas detectors.

The range of Spectrex flame detectors are trusted and specified throughout the hazardous area industires protecting personnel, property and the environment – contact us to discuss your requirements, UK and Export sales.

 

KROHNE Meters

Spectrex Quick Quote

T&D Sales Team aim to respond to all UK and international enquiries with a competitive Spectrex quotation within 24 hours.

Flame Detector Product Range

➡ The following table provides an overview of the Spectrex range of flame detectors:

Flame Detector ModelFlame Detection TechnologySpectrex Product DescriptionImage
Spectrex SP‑4040‑1Infra Red Triple IR (IR3)Spectrex SP‑4040‑I, a multi-spectrum flame detector based on three IR bands (IR3), detects fuel and gas fires at long distances with the highest immunity to false alarms. The SP‑4040‑I IR3 can detect a 0.1 m2 gasoline pan fire at 65 metres in less than 5 seconds. The SP‑4040‑I is the most durable and weather resistant flame detector currently on the market. The flame detector features include a heated window, to eliminate condensation and icing; HART capabilities for digital communications; lower power requirements; and a compact, lighter design.Spectrex SP‑4040‑I Infra Red Triple IR (IR3)
Spectrex SP‑4040‑MInfra Red Multi IRSpectrex SP‑4040‑M Multi IR Flame Detector is specifically designed for detection of hydrocarbon and
hydrogen flames. It detects hydrocarbon‑based fuel and gas fires at long distances with the highest immunity to false alarms. The SP‑4040‑M can detect a gasoline pan fire at 65 metres or a hydrogen flame at
30 metres in less than 5 seconds. The SP‑4040‑M is the most durable and weather resistant range of flame detectors currently on the market.
The flame detector features include a heated window, to eliminate condensation and icing; HART capabilities, for digital communications; lower power
requirements, and a compact, lighter design.
Spectrex SP‑4040‑M Infra Red Multi IR
Spectrex SP‑4040‑L & SP‑4040‑LB UV/IRCombination of UV & IR SensorsSpectrex SP‑4040‑L (SP ‑4040‑LB, with Built‑in Test option) is a flame detector provides a combination of UV and IR sensors, where the IR sensor operates at a wavelength of 2.5‑3.0 µm, and can detect hydrocarbon‑based fuel and gas fires, hydroxyl and hydrogen fires, as well as metal and inorganic fires. The UV/IR flame detector senses radiant energy in the short wave section of both the ultraviolet and infrared portions of the electromagnetic spectrum. The signals from both sensors are analysed for frequency, intensity and duration. Simultaneous detection of radiant energy in both the UV and IR sensors triggers an alarm signal. The UV sensor incorporates a special logic circuit that helps prevent false alarms caused by solar radiation.Spectrex SP‑4040‑L & SP‑4040‑LB UV IR
Spectrex SP‑4040‑UFLUV/IR High‑Speed Optical Flame DetectorSpectrex SharpEye UV/IR High‑Speed Optical Flame detector, SP‑4040‑UFL, is designed to meet two major requirements:
• High‑Speed Response (20 msec)
• High Reliability (immunity to False Alarm)

This flame detector is based on Spectrex’s well‑known military detector used in Armoured Vehicle Explosion Suppression System, combined with the industrial UV‑IR detectors SP‑2020‑LB and SP‑4040‑LB. The UV/IR flame detector senses radiant energy in the short wave section of both the ultraviolet and infrared portions of the electromagnetic spectrum. The signals from both sensors are analysed for frequency, intensity and duration. Simultaneous detection of radiant energy in both the UV and IR sensors triggers an alarm signal. The UV sensor incorporates a special logic circuit that helps prevent false alarms caused by solar radiation.

Spectrex SP‑4040‑UFL UV IR High‑Speed Optical Flame Detector
Spectrex SP‑4040‑U & SP‑4040‑UB UVUV Flame DetectorSpectrex SP‑4040‑UV Flame Detector detects hydrocarbon‑based fuel and gas fires, invisible hydrogen flames, and fires from hydrides, ammonia, Silane and other organics.
The SP‑4040‑U (SP‑4040‑UB with Built‑in Test feature) is the most durable and weather resistant UV
flame detector currently on the market.
Its features include a heated window to eliminate condensation and icing; HART capabilities, for
digital communications; lower power requirements; and a compact, lighter design.
Note: This type of flame detector should not be exposed to UV radiation sources such as welding, sparks, and electric arcs as it will cause false alarms.
Spectrex SP‑4040‑U & SP‑4040‑UB UV Flame Detector
Spectrex SP‑4040‑RSingle IR Flame DetectorSpectrex SP‑4040‑R Single IR Flame Detector detects hydrocarbon‑ based fuel and gas fires using advanced flame analysis tools. The detector provides early warning of flaming fires working at 4.4 µm for maximum sensitivity, and immunity to false alarms from IR sources such as sunlight and IR projectors.
The SP‑4040‑R is the most durable and weather resistant single IR flame detectors currently available.
Its features include a heated window, to eliminate condensation and icing; HART capabilities, for digital communications; lower power requirements; and a compact, lighter design.
Spectrex SP‑4040‑R Single IR Flame Detector
Spectrex SP‑2020‑MI1 & SP‑2020‑MI3Compact Triple IR (Mini IR3) Flame DetectorSpectrex SP‑2020‑MI is an economical and compact Triple IR (IR3) Flame Detector in a rugged stainless steel housing. It is available in either general purpose non‑Ex approved, or intrinsically safe approved (EExia) format. The flame detector retains all the benefits of IR3 technology – long distance detection (up to 40 metres) along with highest immunity to false alarms.Spectrex SP‑2020‑MI1 & SP‑2020‑MI3 Compact Triple IR (Mini IR3) Flame Detector
Spectrex SP‑2020‑MLMini UV/IR Flame DetectorSpectrex low‑cost SP‑2020‑ML UV/IR Flame Detector has a compact, lightweight but rugged design for general purpose (non‑Ex approved) areas. It detects hydrocarbon fire at distances up to 15 metres. The SP‑2020‑ML flame detector provides a combination of UV and IR sensors and can detect hydrocarbon‑based fuel and gas fires, hydroxyl and hydrogen fires, as well as metal and inorganic fires.
The UV sensor incorporates a special logic circuit that helps prevent false alarms caused by solar radiation.
Simultaneous detection of radiant energy in both the UV and IR sensors triggers an alarm signal.
Spectrex SP‑2020‑ML Mini UV IR Flame Detector
Spectrex Flame Detectors

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

Flame Detector Selection Guide
Fire Source UV
(A)
IR
(B)
UV/IR
(C)
IR3
(D)
Hydrogen
(E)
Multi IR
(F)
Gasoline111141
Diesel Fuel222242
N‑Heptane111141
Kerosene222242
JP8/JP4/JP5222242
Alcohol (Ethanol)222222
Methane233343
LPG233343
Hydrogen243412
Petrochemicals112141
Metals243444
Propellants (black powder)132343
Textiles (cotton)333343
Aromatic Solvents222242
Wood, Paper333343
Bonding Glue Substances222241

 

Spectrex

  • (A) SP-4040-U, SP-4040-UB
  • (B) SP-4040-R
  • (C) SP-2020-ML, SP-4040-L, SP-4040-LB
  • (D) SP-2020-MI1, SP-2020-MI3, SP-2020-CTIPS, SP-4040-I
  • (E) SP-2020-SH (special order)
  • (F) SP-4040-MSS

 

  • (1) 100%-75% of the detector sensitivity
  • (2) 75%-50% of the detector sensitivity
  • (3) 50%-25% of the detector sensitivity
  • (4) Not suitable
Flame Detector Model & Specification
Detector Model
Spectrex Number*
Detector
Type
Max.
Detection
Range** (m)
Response
Time
(Typical)
Flame Detector Description
SP-4040-U* SP-4040-UBUV153 secUV flame detector for indoor applications, detects organic and inorganic flames
SP-4040-L* SP-4040-LBUV/IR155 secDual UV/IR for flame detection of organic and inorganic flames for indoor and outdoor applications
SP-4040-RIR155 secSingle IR flame detector for hydrocarbon fires for indoor applications
SP-4040-I**Triple IR (IR3)65605 secTriple IR (IR3) offers two to three times the flame detection distance of single IR or UV/ IR detectors and the highest immunity to false alarms. This flame detector includes heated optics, HART and complies with SIL-2
SP-4040-MSSMulti IRHCs – 65
H2 – 30
5 secSpecial design for the detection of invisible hydrogen flames and hydrocarbon fires
SP-2020-CTIPSCCTV – IR360 & video 305 secCCTV flame detector is a Triple IR (IR3) detector with a video colour camera
SP-2020-MI1 SP-2020-MI3Triple IR (IR3)10 – 402.5 – 105 secTriple IR (IR3) performance in a compact design with 80% less power consumption
SP-2020-MLUV/IR155 secSpecial compact design UV/IR flame detector for industrial applications

 

Comparison Table For Types Of Flame Detector

Each of the Spectrex flame detector ranges uses one or more of the Ultraviolet (UV) and/or Infrared (IR) techniques. However, each detector is recommended only for specific applications, usually determined by evaluating to what extent false alarms could create problems.

Flame Detector TypeApplicationsAdvantagesDisadvantages
Triple IR (IR3)Hydrocarbon fires. Indoors and outdoors.Moderate speed
Highest sensitivity
High immunity to false alarms
Longer detection range. Unaffected by solar radiation
Affected by IR sources only at short range in certain rare fire scenarios.
Multi IRHydrocarbon and Hydrogen fires. Indoors and outdoors.As IR3, but with hydrocarbon and hydrogen fire detection.Affected by IR sources only at short range in certain rare fire scenarios.
Hydrogen (IR3)Hydrogen fires only. Indoors and outdoors.Detects invisible hydrogen flames. Longer detection range.
High immunity to false alarms. Unaffected by solar radiation
Not to be used for Hydrocarbon fire detection.
Dual Band UV/IRHydrocarbon, Hydrogen, Silane, Ammonia, other hydrogen-based fuel fires and Metal fires. Indoors and outdoors.Moderate speed
Moderate sensitivity. Low false alarm rate. Unaffected by solar radiation
Affected by specific UV/IR ratio created by false stimuli.Blinded by thick smoke, vapours, grease and oil deposits on the detector window.
Single I (IR)Hydrocarbon fires. Indoors.Moderate speed
Moderate sensitivity
Unaffected by solar radiation. Low cost detector.
Subject to false alarms (in the presence of flickering IR sources).
Single Ultraviolet (UV)Hydrocarbon, Hydrogen, Silane, Ammonia, other hydrogen-based fuel fires and Metal fires. Indoors.High speed
Moderate sensitivity
Unaffected by solar radiation
Unaffected by hot objects. Low cost detector.
Subject to false alarms from UV sources (arc welding, electrical sparks, halogen lamps). Blinded by thick smoke, vapours, grease and oil deposits on the detector window.

 

THORNE & DERRICK

Thorne & Derrick are Specialist Distributors of Hazardous Area & Explosion Proof Equipment with IECEx & ATEX Certifications to the onshore and offshore oil, gas, petrochemicals and process industries.

We supply major UK and international infrastructure projects and also MRO (Maintenance, Repair, Operations) requirements for both planned and unplanned plant shutdowns – we react with a rapid response to customer demand to ensure downtime is minimised and reliable Power, Light & Heat is restored or provided.

Key Product Categories: Control Panels | Plugs & Sockets | Isolators | Enclosures & Junction Boxes | Lighting | Control Stations | Motor Starters | Heat Trace Cables & Systems | Gas Detection & Detectors | Fire Detection & Detectors | Heat Detectors | Electrical Heating & Heaters 

Also Process Instrumentation Products: Ashcroft Pressure GaugesASCO Valves | Katronic Flow Meters | KROHNE Flow Meters VEGA Level Sensors | Rotronic Temperature & Humidity Sensors | SIKA Pressure Gauges

Hazardous Area Electrical Equipment