Crowcon 40/40L-LB UV/IR Flame Detector
Part no.
The Crowcon 40/40L-LB is a combination of UV and IR sensors.
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Crowcon 40/40L-LB UV/IR Flame Detector
The Crowcon 40/40L-LB is a high-performance UV/IR dual-spectrum flame detector designed for reliable detection of a wide range of fires, including hydrocarbon fuel fires, hydrogen fires, hydroxyl fires, metal fires, and inorganic fires. By combining both ultraviolet (UV) and infrared (IR) sensing technologies, the detector achieves rapid flame detection while maintaining excellent immunity to false alarms.
The detector continuously analyzes radiation detected by both sensors for frequency, intensity, and duration. An alarm condition is generated only when both UV and IR sensors simultaneously detect flame characteristics, significantly reducing nuisance alarms. The 40/40L-LB is approved to IEC 61508 SIL2 requirements and is suitable for use in hazardous industrial and marine environments.
Key Features
- Dual-spectrum UV/IR flame detection technology
- Detects:
- Hydrocarbon fuel fires
- Hydrocarbon gas fires
- Hydrogen fires
- Hydroxyl fires
- Metal fires
- Inorganic fires
- IR sensor operating wavelength: 2.5 to 3.0 μm
- Simultaneous UV and IR detection for improved reliability
- Solar-blind UV sensor technology
- High immunity to false alarms
- Automatic and manual Built-In-Test (BIT)
- Heated optical window
- Suitable for:
- Snow
- Ice
- Condensation
- Harsh weather conditions
- Three programmable relay outputs:
- Alarm
- Fault
- Auxiliary
- 0-20 mA stepped analogue output
- HART communication protocol
- RS-485 Modbus communication
- User programmable via HART or RS-485
- High reliability with MTBF exceeding 150,000 hours
- SIL2 certified (TÜV approved)
- Five-year warranty
- Compact and low-power design
Typical Applications
Oil & Gas
- Refineries
- Offshore production platforms
- Gas processing plants
- LNG terminals
- Tank farms
Hydrogen Facilities
- Hydrogen production plants
- Hydrogen storage installations
- Fuel cell facilities
- Hydrogen refuelling stations
Petrochemical Industry
- Processing units
- Chemical storage facilities
- Loading and unloading terminals
Power Generation
- Gas turbine housings
- Fuel handling areas
- Generator enclosures
Marine & Offshore
- Engine rooms
- Offshore platforms
- FPSOs
- Marine fuel systems
Industrial Facilities
- Manufacturing plants
- Hazardous process areas
- Warehouses
- Utility installations
Technical Specifications
| Specification | Details |
|---|---|
| Model | 40/40L-LB |
| Type | UV/IR Flame Detector |
| Detection Technology | Dual UV/IR Sensors |
| IR Wavelength Range | 2.5 – 3.0 μm |
| Detectable Fire Types | Hydrocarbon, Hydrogen, Hydroxyl, Metal and Inorganic Fires |
| Built-In-Test | Automatic and Manual |
| Heated Window | Yes |
| Relay Outputs | 3 (Alarm, Fault, Auxiliary) |
| Analogue Output | 0-20 mA Stepped |
| Communications | HART, RS-485 Modbus |
| Programming | HART or RS-485 |
| MTBF | Minimum 150,000 Hours |
| SIL Rating | SIL2 (TÜV) |
| Warranty | 5 Years |
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