Cirrus is a Flameproof (Exd) infra-red flammable and CO2 gas detector. Using a well-proven dual-beam, dual detector arrangement, the optical construction gives long term reliable performance. Cirrus needs minimal calibration, and can interface with any standard control system.

Features:

High reliability with low maintenance

• Extremely robust 316 stainless steel construction
• MTBF of 10 years
• Detects gas with optical system obscured by up to 90%, ‘dirty optics’ warning is provided at 75% obscuration

Unrivalled stability

• Two IR sources deliver beams at different wavelengths, and are measured by separate detectors

Flexible installation

• 4-20mA and RS-485 outputs ensure simple integration with new or existing installations
• Modbus serial link enables detectors to be multi-dropped, allowing addressable detectors to be controlled and interrogated remotely
• Pellistor mimic module available to update or extend existing pellistor based systems