Open Path Gas Detectors

 

Crowcon offers open-path infra-red (IR) gas detection systems based on well-proven technology for fast detection of combustible gases and vapours over a line-of-sight up to 200m long.

 

Using superior "Xenon Flash" technology the SafEye range is immune to false alarms caused by partial blockage and extreme weather conditions (fog, rain or snow) and direct or reflected sunlight, flame or other black body radiation sources.

 

 

 

The New SafEye Quasar 900 is an open path detection system. It employs “spectral fingerprint” analysis of the atmosphere using the Differential Optical Absorption Spectroscopy (DOAS) technique. With a range from 7m up to 200m the Quasar 900 detects gas hazards in extremely harsh environments where dust, fog, rain, snow or vibration can cause a high reduction of signal.  The main stainless steel enclosure is Exd flameproof with an integral, segregated, Exe terminal section. An I.S. communicator can be connected for diagnostic/maintenance purposes.  The Quasar 900 includes heated windows to eliminate condensation and icing, HART capability for digital communication and is designed to meet SIL2 per IEC61508 and FM performance approved per FM6325 and tested per EN60079-29-4.  

 

 

 

The 700 series includes heated optics to withstand severe environmental conditions such as icing, snow and condensation and has a data port to allow easy access for maintenance or configuration changes. Fully functional with up to 90% of signal obscuration eg in heavy fog, its special optics design has a misalignment tolerance of ±1° in all directions.

 

 

The 200 series offers an economical solution for those wishing to incorporate open-path technology into their safety system. Proven on hundreds of installations, it offers an economical solution for those wishing to incorporate open-path technology into their safety system. High immunity to false alarms and rugged design means high availability and reliability.

 

 

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