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40/40L4 - Détecteur de Flamme combiné UV/IR 4,5μm - Boitier antidéflagrant Spectrex UV-IR 4.5μm Flame Detector 40-40L440/40L4 - Détecteur de Flamme combiné UV/IR 4,5μm - Boitier antidéflagrant Spectrex UV-IR 4.5μm Flame Detector 40-40L4

UV-IR 4.5μm Flame Detector 40-40L4

UV/IR 4.5μm Flame Detector Explosion Proof enclosure 40/40L4 for hydrocarbon-based fuel fires and non-organic fires SharpEye Spectrex

40/40L4 - UV/IR Flame Detector IR: 4.5 μm - Explosion Proof enclosure Spectrex

Spectrex offers two versions of the new 40/40 Series UV/IR Flame Detectors:
Model 40/40L (& LB) provides a combination of UV and IR sensors, where the IR sensor operates at a wavelength of 2.5-3.0 um, and can detect hydrocarbon-based fuel and gas fires, hydroxyl and hydrogen fires, as well as metal and inorganic fires.
Model 40/40L4 (& L4B) is identical to the 40/40L except that the IR sensor works at a wavelength of 4.5 um and is only suitable for hydrocarbon-based 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 analyzed 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.
Due to increased reliability, the 40/40 Series warranty period has been extended to 5 years and is SIL2 (TUV) approved to IEC 61508.

Standard enclosure : Aluminium (Stainless Steel enclosure in option)


- UV/IR Dual-Sensor
- High-Speed Response - 150 msec Response to Saturated Signal
- Solar blind
- Automatic Built-In-Test (BIT)* and Manual - to assure continued reliable operation
- Heated window - for operation in harsh weather conditions (snow, ice, condensation)
- 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
- High Reliability - MTBF - minimum 150,000 hours
- Approved to Safety Integrity Level 2 (SIL2 - TUV) Models 40/40LB and 40/40L4B only
- 5-Year Warranty
- User Programmable via HART or RS-485
- Ex approved for Zone 1 hazardous area location : - ATEX - IECEx - FM/FMC - CSA
- 3rd party Performance Tested : - EN54-10 (LPCB) - FM3260 (FM)


- Offshore Oil & Gas installations
- Onshore Oil & Gas installations and pipelines
- Chemical plants Petrochemicals plants
- Storage Tank farms
- Aircraft hangars
- Power Generation facilities
- Pharmaceutical Industry
- Printing Industry
- Warehouses
- Automotive Industry
- Explosives & Munitions
- Waste Disposal facilities
- Aerospace Industry
- Paint, Polymer and Glue processes


  • Spectral Response 40/40L-LB : UV: 0.185 - 0.260 um; IR: 2.5-3.0 um
  • Spectral Responce 40/40L4-L4B : UV: 0.185 - 0.260 um; IR: 4.4-4.6 um
  • Detection Range : n-Heptane 15m, Ethanol 95% 7.5m, LPG 5m, Gasoline 15m, Methanol 7.5m, Polypropylene Pellets 4m, Diesel Fuel 11m, IPA (Isopropyl Alcohol) 7.5m, Office Paper 5m, JP5 11m, Hydrogen 5m, Kerosene 11m, Methane 5m
  • Response Time : Typically 5 seconds. High speed 150 msec response to saturated signal
  • Adjustable Time Delay : Up to 30 seconds
  • Sensitivity Ranges : 0.1m2 n-heptane pan fire from 15m
  • Field of View : Horizontal 100©; Vertical 95©
  • Built-in-Test (BIT) : Automatic (and Manual)
  • Temperature Range Operating : -55°C to +75°C, Option: -55°C to +85°C, Storage: -55°C to +85°C
  • Humidity : Up to 95% non-condensing (withstands up to 100% RH for short periods)
  • Heated Optics : To eliminate condensation and icing on the window


  • Operating Voltage : 24 VDC nominal (18-32 VDC)
  • Power Consumption : Standby: Max. 90mA (110mA with heated window), Alarm: Max. 130mA (160mA with heated window)
  • Cable Entries : 2 x 3/4" - 14NPT conduits or 2 x M25 x 1.5 mm ISO
  • Wiring : 12 - 22AWG (2.5mm2 - 0.3mm2)
  • Electrical Input Protection : According to MIL-STD-1275B
  • Electromagnetic Compatibility : EMI/RFI protected to EN61326-3 and EN61000-6-3
  • Electrical Interface : The detector includes twelve (12) terminals with five (5) wiring options (factory set)


  • Relays : Alarm, Fault and Auxiliary, SPST volt-free contacts rated 5A at 30 VDC or 250 VAC.
  • 0-20mA (stepped) : Sink (source option) configuration, Fault: 0 +1mA, Warning: 16mA © 5%, BIT Fault: 2mA © 10%, Alarm: 20mA © 5%, Normal: 4mA © 10%, Resistance Loop: 100-600 e
  • HART Protocol : Optional HART communications on the 0-20mA analog current (FSK) - used for maintenance, configuration changes and asset management, available in mA source output wiring options
  • RS-485 : RS-485 Modbus compatible communication link that can be used in computer controlled installations


  • Materials : - Stainless Steel 316L with electro polish finish, Enclosure options - Heavy duty copper free aluminum (less than 1%), red epoxy enamel finish
  • Mounting : Stainless Steel 316L with electro polish finish
  • Dimensions Detector : 101.6 x 117 x 157 mm
  • Weight : Detector : 2.8 kg, Tilt mount : 1.0 kg, Detector, aluminum : 1.3 kg
  • Environmental Standards : Meets MIL-STD-810C for Humidity, Salt & Fog, Vibration, Mechanical Shock, High Temp, Low Temp
  • Water and Dust I: P66 and IP67 per EN60529, NEMA 250 6P


  • Hazardous Area ATEX and IECEx Ex II 2 GD, Ex de IIC T5 (-55°C to +75°C) Ex de IIC T4 (-55°C to +85°C) Ex tD A21 IP66/X7 T 95°C Ex tD A21 IP66/X7 T 105°C FM/FMC/CSA Class I Div. 1, Groups B, C & D Class II/III Div. 1, Groups E, F & G
  • Performance EN54-10 (LPCB), FM-3260 (FM)
  • Reliability IEC61508 - SIL2 (TUV) - models 40/40LB and 40/40L4B only


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