This range is obsolete and has been replaced by the FL500.
The General Monitors FL3100H and FL3101H are Ultraviolet/Infrared and Ultraviolet-only flame detectors designed to detect unwanted fires and provide alarm outputs directly from the detector while maintaining false alarm immunity.
The FL3100H detects fires by monitoring both the ultraviolet and infrared (UV & IR) spectral ranges, making it highly immune to false alarms caused by lightning, arc welding, hot objects, and other sources of radiation. The FL3101H detects only the ultraviolet (UV) spectral range for optimised response speed.
Other features of the FL3100H and FL3101H include three alarm/fault relays and an RS-485 serial output with Modbus RTU protocol, allowing up to 128 detectors to be linked in series or 247 with repeaters. The RS-485 and HART outputs provide status, alarm, fault, and other information for the operation, troubleshooting, or programming of the units. HART allows this feature without rewiring.
The COPM (Continuous Optical Path Monitoring) self-test feature checks the optical path integrity (window cleanliness) and the detector’s electronic circuitry once every minute.
Features
- 4-20 mA stepped output conforms to industry standard for remote alarm and fault indication.
- Modbus and HART user interface provides complete status and control capability in the control room.
- Wide operating temperature range.
- Continuous Optical Path Monitoring (COPM) checks optical path integrity and the detector’s electronic circuitry once every minute.
- Three SPDT high-current programmable relay outputs provide immediate and time-delayed relay outputs for alarm, warning and fault conditions.
Applications
- Aircraft Hangars
- Chemical Plants
- Compressor Stations
- Drilling and Production Platforms
- Electrostatic Paint Spray Booths
- Fuel Loading Facilities
- Gas Turbines
- LNG/LPG Processing and Storage Facilities
- Refineries
