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商品详细描述
R2868日本HAMAMATSU公司生产的火焰传感器和传感器应用电路板。
Compact UV Sensor with High Sensitivity and Wide Directivity,
Suitable for Flame Detectors and Fire Alarms.
Hamamatsu R2868 is a UV TRON ultraviolet detector that makes use of the photoelectric effect of metal and the gas multiplication effect. It has a narrow spectral sensitivity of 185 to 260 nm, being completely insensitive to visible light. Unlike semiconductor detectors, it does not require optical visible-cut filters, thus making it easy to use.
In spite of its small size, the R2868 has wide angular sensitivity (directivity) and can reliably and quickly detect weak ultraviolet radiations emitted from flame due to use of the metal plate cathode (eg. it can detect the flame of a cigarette lighter at a distance of more than5 m .).
The R2868 is well suited for use in flame detectors and fire alarms, and also in detection of invisible discharge phenomena such as corona discharge of high-voltage transmission lines.
APPLICATIONS
★ Flame detectors for gas/oil lighters and matches
★ Fire alarms
★ Combustion monitors for burners
★ Inspection of ultraviolet leakage
★ Detection of discharge
★ Ultraviolet switching
GENERAL
Spectral Response185 to 260nm
Window Material UV glass
Weight Approx.1.5g
MAXIMUM RATINGS
Supply Voltage 400Vdc
Peak Current 30mA
Average Discharge Current 1ma
Operating Temperature -20 to +60C
CHARACTERISTICS (at25C )
Discharge Starting Voltage (with UV radiation) 280Vdc Max.
Recommended Operating Voltage 325±25Vdc
Recommended Average Discharge Current 100μA
Background 10cpm Max
Sensitivity 4)5000cpm Typ.
★UV TRON Driving Circuit C3704 series (Option)
Compact UV Sensor with High Sensitivity and Wide Directivity,
Suitable for Flame Detectors and Fire Alarms.
Hamamatsu R2868 is a UV TRON ultraviolet detector that makes use of the photoelectric effect of metal and the gas multiplication effect. It has a narrow spectral sensitivity of 185 to 260 nm, being completely insensitive to visible light. Unlike semiconductor detectors, it does not require optical visible-cut filters, thus making it easy to use.
In spite of its small size, the R2868 has wide angular sensitivity (directivity) and can reliably and quickly detect weak ultraviolet radiations emitted from flame due to use of the metal plate cathode (eg. it can detect the flame of a cigarette lighter at a distance of more than
The R2868 is well suited for use in flame detectors and fire alarms, and also in detection of invisible discharge phenomena such as corona discharge of high-voltage transmission lines.
APPLICATIONS
★ Flame detectors for gas/oil lighters and matches
★ Fire alarms
★ Combustion monitors for burners
★ Inspection of ultraviolet leakage
★ Detection of discharge
★ Ultraviolet switching
GENERAL
Spectral Response185 to 260nm
Window Material UV glass
Weight Approx.
MAXIMUM RATINGS
Supply Voltage 400Vdc
Peak Current 30mA
Average Discharge Current 1ma
Operating Temperature -20 to +
CHARACTERISTICS (at
Discharge Starting Voltage (with UV radiation) 280Vdc Max.
Recommended Operating Voltage 325±25Vdc
Recommended Average Discharge Current 100μA
Background 10cpm Max
Sensitivity 4)5000cpm Typ.
★UV TRON Driving Circuit C3704 series (Option)
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