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DETECTION DEVICES
Optical Flame
Optical flame detectors identify fire by sensing ultraviolet (UV) and/or infrared (IR) radiation emitted during combustion.
Because detection is based on flame radiation, these devices can respond at the earliest stage of a fire, the point of ignition, without relying on heat buildup or smoke development.
Det-Tronics optical flame detection installed in a high-hazard process booth. 
Fike optical flame detection installed for preaction fire sprinkler system with process interlocks in an industrial spray booth. 
Pre-fabricated fire suppression system using Det-Tronics optical flame detection for industrial grinding equipment protection.
Optical flame detection is designed to distinguish true flame signatures from non-fire sources, supporting reliable detection in complex environments.
They are commonly used in high-hazard environments where immediate response to open flame is critical.
Fire Defense conducts side-by-side testing of Fike and Det-Tronics optical flame detectors. 
A new Fire Defense clean agent fire suppression system installation in progress, protecting a paint mix room using multiple Fike optical flame detectors. 
One of several Det-Tronics optical flame detectors installed as part of a foam fire suppression system protecting an industrial tank farm.
OPTICAL FLAME APPLICATIONS
Aircraft hangars. Aerosol filling. Automotive paint finishing lines. Battery rooms. Chemical processing. Distillation units. Fuel storage. Hydrocarbon processing. Hydrogen filling. LNG/LPG facilities. Loading racks. Munitions. Oil and gas production. Power generation. Refineries. Tank farms. Transformer protection. Turbine enclosures. Water curtain applications.
OPTICAL DETECTOR TYPES
Infrared Detection. Ultraviolet Detection. UV/IR Combination. Multi-Spectrum Detection.
Design + Install
Fire Defense provides design and installation for optical flame detection systems used to detect flame signatures in open or high-hazard environments. These systems identify ultraviolet (UV) and/or infrared (IR) radiation emitted by flames.
- Detector placement based on field of view
- Selection of UV, IR, or multi-spectrum detectors
- Interface with alarm and suppression systems
- Configuration for specific hazard conditions
- Installation for indoor and outdoor applications
ITM
Inspection, testing, and maintenance services for optical flame detection systems to verify detection performance and system reliability.
- Functional testing using approved methods
- Detector lens inspection and cleaning
- Alignment and field-of-view verification
- Signal and interface testing
- Field-of-view obstruction and coverage verification
- Environmental condition review
- Inspection documentation and deficiency identification
Emergency Service
24/7 emergency service is available for optical flame detection systems. Fire Defense supports detector faults, false alarm troubleshooting, and replacement of damaged or failed devices.
Codes and Standards
Fire Defense performs optical flame detection system services in accordance with NFPA 72 and other applicable codes, manufacturer requirements, customer specifications, and AHJ requirements.
Note: NFPA makes its codes and standards available online for free. Select View Free Access under Current & Prior Editions and create a free account.
A Fike optical flame detector installed as part of a Fire Defense powder coating spray booth fire protection system. 
Det-Tronics optical flame detectors installed by Fire Defense for fire detection and fire suppression system protection in an industrial paint mix room. 
Det-Tronics optical flame detector installed for deluge fire suppression system activation at an automated automotive paint line.
Questions & Answers
What causes false alarms in flame detection systems?
Welding, sunlight reflection, and hot surfaces can mimic flame signatures if detectors are not properly selected or configured for the environment.