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Spectrex Inc.

SafEye 300 Duct Open Path Gas Detector

Monitor and alarm against ingress of hazardous gas concentrations into air intakes of turbine engines and HVAC air ducts

Have questions? We're here to help!
Have questions? We're here to help!

The Duct SafEye Open Path Detectors were specially designed and are widely used to monitor ingress of hazardous flammable gas concentrations into air intakes of turbine engines and HVAC air ducts.

Duct applications require that the small path across an air inlet responds with a very high sensitivity, full scale of 1 LEL.m for 2-6.6 ft (0.6-2 m) wide inlet and full scale of 2.5 LEL.m for 6.6-23 ft (2-7 m) wide inlet.

Special duct mountings allow a clear path across the duct and are easy to align. Due to its special optics design, it allows a misalignment tolerance of ±2°.

Fast Response of 2 seconds; 20-50 times faster than point type detectors or sampling systems.

• Proven Technology 
• Cost Saving compared to point type detectors and sampling systems 
• Fast Response 
• Specially Designed to Perform Under Extreme Conditions 
• Low Maintenance 
• Standard Interface Options 
• 1.5-Year Warranty  

Detected GasesSimultaneous detection of C1-C8 flammable gases
Detection Range and Response TimeModel 301DS:
Distance - 2-11' (0.6-3.5m)
Response Time - 2 sec.

Model 302DS:
Distance - 9.9-49.5ft (3-15m)
Response Time - 5 sec.
Immunity to False AlarmNot influenced by solar radiation, hydrocarbon flames, other external IR radiation sources, high airflows and high loaded streams
Spectral Response3.0-4.0 μm
Sensitivity Range0-2.5 LEL.m Standard; 0-1 LEL.m by dip-switch setting
Misalignment Tolerance±2˚
DriftLong-term ±5% of full scale
Temperature Range-40˚F (-40˚C) to 158˚F (70˚C)
  • Thumbnail of document Product data sheet safeye 300 series gas detection systems for air duct spectrex en us 584728 14480
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    Product data sheet safeye 300 series gas detection systems for air duct spectrex en us 584728 14480

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  • Thumbnail of document Manual safeye 300 950 winhost spectrex en us 4845650 14481
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    Manual safeye 300 950 winhost spectrex en us 4845650 14481

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