Description
Honeywell U2-1010-PF
Technical Specifications UV flame signal amplification circuit; 24 VDC power supply; Flame relay contact output; Operating temperature -20°C to +60°C; Flame signal fault self-check function; Screw terminal field wiring; Flame response time within millisecond range.
Functional Features Amplifies low intensity UV radiation signal from flame sensor; Filters background ultraviolet noise interference; Fast flame loss detection; Built-in self diagnostic circuit for sensor and wiring fault; Relay contact output for burner safety interlock; LED indicator shows flame status and fault state.
Application Scenarios Industrial gas boiler flame monitoring; Refinery process furnace burner safety system; Petrochemical reformer furnace flame detection; Thermal power plant auxiliary burner monitoring; Metallurgical heating furnace flame protection; Waste incinerator burner flame supervision.
Performance Parameters UV signal amplification gain stable; Flame loss detection response fast; Noise filtering suppresses false flame signal; Relay contact switching reliable; Continuous self-check runs without interrupting flame monitoring.
Material Composition Flame retardant plastic enclosure; FR4 multi-layer printed circuit board; UV signal amplifier chips; Electromechanical relay; LED status indicators; Screw terminal copper connectors; Passive filter components.
Structural Features Compact rectangular DIN rail mount module; Front panel LED indicators; Screw terminal blocks on top and bottom edge; Internal shielded compartment for weak UV signal circuit; DIN rail clip at module rear side.
Working Principle UV flame sensor captures ultraviolet radiation emitted by combustion flame and converts radiation into tiny electrical pulse signal. U2-1010-PF amplifier receives this weak pulse signal, amplifies signal amplitude and filters out background UV interference from sunlight or welding arcs. When valid flame signal exists, relay maintains energized state. If flame disappears, amplifier detects signal loss and de-energizes relay immediately to trigger burner safety shutdown sequence. Onboard diagnostic circuit continuously checks sensor wiring integrity.
Installation Requirements Clip module onto TS35 DIN rail inside burner control cabinet; Use shielded cable for UV sensor wiring; Separate sensor signal cable from high voltage ignition wiring; Connect 24VDC stable power supply; Wire relay contact into burner safety interlock circuit.
Precautions for Use Verify UV sensor sight path free from smoke, dust or oil film; Do not run sensor cable parallel with ignition high voltage wire; Perform flame simulation test after installation; Replace module if continuous fault alarm occurs; Keep module enclosure dry and dust free.
