FL500-H2 Flame Detector
The FL500-H2 Flame Detector is an advanced ultraviolet/infrared (UV/IR) flame detector engineered specifically to detect hydrogen fires. By monitoring flame radiation in both the UV and IR spectral ranges, the detector delivers fast and dependable flame detection while significantly reducing susceptibility to false alarms caused by non-fire radiation sources.
Designed for critical industrial safety applications, the FL500-H2 provides a wide field of view and rapid response time, making it ideal for hydrogen production, storage, transportation, and other emerging energy applications where early fire detection is essential. Its rugged 316 stainless steel housing and wide operating temperature range from -55°C to +85°C ensure reliable operation in harsh outdoor and industrial environments.
Key features include Continuous Optical Path Monitoring (COPM), which automatically performs self-checks every two minutes to verify detector integrity and ensure ongoing operational readiness. The detector also offers multiple communication and output options, including 4-20 mA, HART®, Modbus®, and relay outputs, enabling seamless integration into existing fire and safety systems.
With its combination of hydrogen-specific flame detection, fast response, superior false alarm immunity, and durable construction, the FL500-H2 Flame Detector helps organizations strengthen fire protection strategies, improve operational safety, and support the safe adoption of hydrogen technologies.





