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
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