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MSA FL500-H2 — UV/IR flame detector for hydrogen applications
The FL500-H2 is a UV/IR flame detector designed specifically to detect hydrogen fires. Simultaneous analysis of radiation in the ultraviolet and infrared ranges, matched to the H₂ flame spectrum, provides a fast response time and high resistance to false alarms in hydrogen installations.
The FL500-H2 is a UV/IR flame detector designed specifically to detect hydrogen fires. Simultaneous analysis of radiation in the ultraviolet and infrared ranges, matched to the H₂ flame spectrum, provides a fast response time and high resistance to false alarms in hydrogen installations.
Key features
- Designed specifically to detect hydrogen (H₂) fires.
- Simultaneous analysis of ultraviolet (UV) and infrared (IR) radiation — fast response time and high resistance to false alarms.
- Wide field of view — up to 125° (maximum cone) for both UV and IR.
- 316 stainless-steel, powder-coated housing — resistant to harsh environmental conditions.
- 3-year manufacturer's warranty.
- 4-20 mA (sink/source) analog outputs, HART, Modbus and 5 A relays.
- Remote monitoring and notifications possible via a FieldServer FGFD ProtoAir gateway.
Technical specification
| Parameter | Value |
|---|---|
| Type | UV/IR flame detector dedicated to hydrogen (H₂) |
| Field of view | up to 125° (maximum cone) |
| Housing | 316 stainless steel, powder-coated |
| Diameter / length | 114 mm / 140 mm |
| Weight | 4.0 kg |
| Wavelengths | 185–260 nm (UV), 2.95 microns (IR) |
| Outputs | 4-20 mA (sink/source), HART, Modbus, 5 A relays |
| Warranty | 3 years |
Applications
Fire protection for hydrogen installations — hydrogen refueling and production stations, fuel cells, electrolyzers and other industrial facilities where the primary hazard is a hydrogen fire, which is difficult to detect with ordinary flame detectors.
Frequently asked questions (FAQ)
Why does hydrogen require a dedicated detector?
A hydrogen flame emits radiation with a different spectral characteristic than typical hydrocarbon fires, so the FL500-H2 uses UV and IR bands matched to this gas, ensuring effective and fast detection.
What outputs does the FL500-H2 offer?
The detector provides a 4-20 mA analog output (sink or source), HART and Modbus communication, and 5 A relays, making it easy to integrate with a control panel.
Can the FL500-H2 be monitored remotely?
Yes — in combination with a FieldServer FGFD ProtoAir Gateway, remote monitoring and event notifications are possible.
Brand and service
MSA Safety — authorized sales, selection, system design and service by SafeTech (Suchy Dwór near Gdynia).
Why SafeTech
- 23 years of experience in gas detection (the company has operated since 2003).
- Authorized distributor and authorized service station (including Honeywell, Dräger, GfG, MSA).
- In-house service, calibration, certification and adjustment in Suchy Dwór near Gdynia — service throughout Poland.
- Training and technical support (SafeTech Safety Academy).
Availability and service — Gdynia and the Tricity
MSA FL500-H2 — UV/IR flame detector for hydrogen applications — sales, selection, calibration and service in Gdynia (Suchy Dwór, on the border of Gdynia and the Kosakowo municipality). We serve the Tricity (Gdańsk, Sopot, Gdynia), Rumia, Reda, Wejherowo, the Pomeranian Voivodeship and all of Poland. Ask about a quote and availability.


