Crowcon IREX Infra-red pellistor replacement flammable Gas Detector
Part no.
The Crowcon IREX is an infrared flammable gas detector designed as a direct replacement for traditional pellistor-type gas detector heads.
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Crowcon IREX Infrared Pellistor Replacement Flammable Gas Detector
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The Crowcon IREX is an infrared flammable gas detector designed as a direct replacement for traditional pellistor-type gas detector heads. It provides the benefits of advanced dual-wavelength infrared gas detection technology while maintaining compatibility with existing pellistor-based control systems through an mV Wheatstone Bridge output.
The IREX allows users to upgrade aging catalytic pellistor detectors without replacing field cabling, junction boxes, or control systems, significantly reducing installation costs and downtime.
Key Features
- Direct replacement for conventional pellistor gas detector heads
- Dual-wavelength infrared hydrocarbon gas detection
- Compatible with existing pellistor-based gas detection systems
- mV Wheatstone Bridge output
- Sinters not required, eliminating blockage issues
- Power consumption less than 1 Watt
- Suitable for a wide range of existing control panels
- Third-party approved to EN 60079-29-1
- Independently tested for offshore reliability
- Fast response time with T90 less than 4 seconds
- Advanced signal processing algorithms for reliable operation
- STAY-CLIR coated optics for improved performance in condensing environments
- Remote gas testing capability via weather cover test tube
- No field detector adjustments required
- Zero and span calibration performed at the controller
- Simple retrofit installation using existing junction boxes and wiring
Typical Applications
Offshore Oil & Gas Facilities
- Production platforms
- FPSOs
- Drilling rigs
- Compressor modules
- Process areas
Petrochemical Plants
- Hydrocarbon processing units
- Storage tank farms
- Transfer stations
- Loading terminals
Industrial Facilities
- Chemical plants
- Manufacturing facilities
- Utility installations
Upgrade Projects
- Pellistor detector replacement programs
- System modernization projects
- Life extension upgrades
- Brownfield installations
Hazardous Area Monitoring
- Flammable gas leak detection
- Hydrocarbon process monitoring
- Plant safety systems
Technical Specifications
| Specification | Details |
|---|---|
| Product | Crowcon IREX |
| Type | Infrared Flammable Gas Detector |
| Detection Technology | Dual-Wavelength Infrared (IR) |
| Output Signal | mV Wheatstone Bridge |
| Power Consumption | Less than 1 W |
| Response Time | T90 < 4 Seconds |
| Compliance Standard | EN 60079-29-1 |
| Optical Protection | STAY-CLIR Coated Optics |
| Test Method | Remote Gas Application |
| Calibration | At Control Panel |
| Detector Adjustments | Not Required |
| Installation | Direct Pellistor Replacement |
| Sinter Required | No |
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