` 40/40L4-L4B UV/IR Flame Detector Series

Spectrex Inc.

40/40L4-L4B UV/IR Flame Detector Series

Combination of UV and IR sensors, where the IR sensor operates at a wavelength of 4.5 μm, and can detect hydrocarbon-based fuel and gas fires, 5 year warranty


This product is obsolete and has been replaced by:
40/40C-L4B SharpEye


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Model 40/40L4 (& L4B, with Built-in-test option) provides a combination of UV and IR sensors, where the IR sensor operates at a wavelength of 4.5 µm, and can detect hydrocarbon-based fuel and gas 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.
 

• UV/IR Dual-Sensor
• Solar Blind
• Automatic and Manual Built-In-Test (BIT) and Manual- to assure continued reliable operation (in 40/40L4B only)
• 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) - Model 40/40L4B only
• 5-Year Warranty
• User Programmable via HART or RS-485
• Hazardous area zones:
  - Zones 1 & 2 with IIC gas group vapors present
  - Zones 21 & 22 with IIIC dust type present
• Ex approved to:
  - ATEX & IECEx
  - FM/FMC/CSA
• 3rd party Performance Approved
  - EN54-10 (VdS)
  - FM3260
• Marine Approval
  - MED "Wheelmark" approval (DNV)

Spectral Response UV: 0.185 - 0.260 μm; IR: 4.4-4.6 μm
Detection Range (at highest Sensitivity Setting for 1ft2 (0.1m2) pan fire) Fuel ft / m

n-Heptane 93 / 28
Gasoline 93 / 28
Diesel Fuel 70 / 21
JP5 70 / 21
Kerosene 70 / 21
Methanol 57 / 17
IPA 70 / 21
Methane* 60 / 18
Alcohol 95% 57 / 17
Polypropylene Pellets 60 / 18
Office Paper 33 / 10
LPG * 60 / 18
* 30" (0.75m) high, 10" (0.25m) width plume fire
Response Time Typically 5 seconds
Adjustable Time Delay Up to 30 seconds
Sensitivity Ranges 1 ft2 (0.1m2) n-heptane pan fire from 93 ft (28m)
Field of View Horizontal 100º; Vertical 95º
Built-in-Test (BIT) Automatic (and Manual)
Temperature Range Operating: -67°F 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

Hazardous Area Ex Approvals: ATEX approval remark , IECEx approval remark , FM approval remark , CSA approval remark , CU TR approval remark , CIMFR approval remark 

Functional Approvals: FM approval remark , EN54-10 approval remark , CPD approval remark 

Reliability Approvals:
SIL2 approval remark 

Other Approvals: Type Approval approval remark , MED-D approval remark , MED-B approval remark , ABS approval remark , CAL FIRE approval remark , AFP approval remark 
 
 



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