Hamamatsu R2868 Flame Sensor UV Phototube C10807 with Matching Driver Board

Hamamatsu R2868 Flame Sensor UV Phototube C10807 with Matching Driver Board Hamamatsu R2868 Specifications: – Spectral Response: 185~260nm, responds only to UV, completely insensitive to sunlight and visible light, no false alarms from sunlight – Recommended Operating High Voltage: 325±25VDC, maximum breakdown start voltage 280VDC – Detection Distance: Up to 5 meters for open flames (e.g., 25mm lighter flame) – Operating Temperature: -20℃ ~ 60℃ – Applications: Gas burner flame failure protection, industrial fire alerts, arc/leakage UV detection, open flame alarms Key Features: – Built-in wide-angle detection, no extra optical lenses needed – Metal photocathode with gas multiplication, weak UV signals can trigger detection – Do not reverse the wiring, or it may cause detection failure or device damage C10807 Driver Board Core Features: – Built-in boost circuit, providing stable 350V high voltage for R2868 – Built-in background interference suppression, filters sunlight and stray cosmic light to reduce false triggers – Output Type: Open-collector pulse output, single pulse width 10ms, higher flame intensity increases pulse frequency – Output Specs: Withstand voltage 50V, max sink current 80mA, can connect directly to MCU, optocoupler, or relay – Replaces previous model C3704, half the size, low power, lightweight Dimensions and Installation: – Board Size: 50mm × 36mm × 12mm (including component height) – Board Pads: ANODE (connect to R2868 anode), CATHODE (connect to cathode), GND (power ground), Pulse output – Wiring Requirements: 4.7kΩ matching resistor should be close to the anode pin, lead length ≤2.5cm to avoid high-voltage interference