FirePASS® Oxygen Monitor for Oxygen Reduction Systems

The FirePASS® Oxygen Monitor provides continuous oxygen monitoring for oxygen reduction fire prevention systems.

Designed specifically for oxygen-reduced environments, the stand-alone monitoring system continuously measures the oxygen concentration within the protected space. This enables accurate supervision of the controlled atmosphere required for reliable oxygen reduction fire prevention.

The FirePASS® Oxygen Monitor combines continuous O₂ measurement with configurable alarm levels, visual indicators and relay outputs for integration with monitoring and control systems.

Continuous Oxygen Monitoring for Fire Prevention

Maintaining the correct oxygen concentration is essential for an oxygen reduction fire prevention system. The FirePASS® Oxygen Monitor continuously measures O₂ levels within the protected environment, allowing changes in oxygen concentration to be detected and monitored.

Continuous measurement provides the information required to verify that the protected atmosphere remains within the engineered operating range of the FirePASS® system.

FirePASS® Oxygen Analyzer

The FirePASS® Oxygen Analyzer consists of a digital display sensor head and a proprietary zirconium oxide sensor cell designed for the detection of O₂ in oxygen-reduced air.

The analyzer provides an oxygen measurement range of 0–25% O₂, making it suitable for continuous monitoring within FirePASS® oxygen reduction environments.

The digital display provides direct access to oxygen concentration information, while integrated alarm and relay functions enable the monitor to communicate changes in operating conditions.

Configurable Oxygen Alarms and Relay Outputs

The FirePASS® Oxygen Monitor incorporates configurable alarm and system monitoring functions for integration into the wider fire prevention system.

Key functions include:

• Dual-level visual alarm indicators
• User-selectable oxygen concentration alarm levels
• Relay contacts for both concentration alarm levels
• Dedicated system fault relay
• Continuous O₂ concentration measurement
• Digital oxygen concentration display

These functions enable oxygen conditions and system faults to be identified and communicated to the appropriate monitoring or control equipment.

Key Features

• Continuous oxygen concentration monitoring
• Designed specifically for oxygen-reduced environments
• Measurement range: 0–25% O₂
• Proprietary zirconium oxide sensor cell
• Digital oxygen concentration display
• Dual-level visual alarm indication
• User-selectable concentration alarm levels
• Alarm relay contacts
• System fault relay
• Stand-alone monitoring capability

Integration with FirePASS® Oxygen Reduction Systems

The Oxygen Monitor forms an important part of a complete FirePASS® oxygen reduction fire prevention system.

Combined with FirePASS® oxygen reduction equipment and system controls, continuous oxygen monitoring helps supervise the conditions within the protected environment and provides alarm information when predefined oxygen concentration levels are reached.

The required number and positioning of oxygen monitors are determined according to the design and monitoring requirements of each protected environment.

Oxygen Monitoring Applications

The FirePASS® Oxygen Monitor can be integrated into oxygen reduction fire prevention systems for a wide range of controlled environments, including data centers, automated warehouses, archives, electrical facilities and other critical infrastructure.

Each monitoring configuration is engineered according to the protected space and the requirements of the FirePASS® system.