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Hamamatsu
Hamamatsu Photonics
R2868 FLAME SENSOR UVtron®

UVtron is an ultraviolet detector tube that uses the photoelectric effect of metal and gas multiplication effect of electric current by means of discharge. It has a very narrow range of sensitivity from 185 nm to 300 nm and is completely insensitive to visible light. Because it used the discharge phenomenon, its sensitive is high and an adequate output voltage is obtained, making it possible to design a high-sensitivity, quick response ultraviolet detection with simple circuitry.
The UVtron reliably detects faint ultraviolet emissions from flames, making it ideal for applications such as fire alarms, arson surveillance, and burner combustion monitor devices. The UVtron can also detect discharges such as corona dis charges from high-voltage power transmission lines.

FEATURES
● Capability of Detecting Very Weak Ultraviolet Rays (from 1 pW)
● Not Sensitive to Visible and Infrared Light
   (Solar Blind Characteristics)
● High Reliability and long service life
   (10 000 hours of Continual Discharge Operation)
● High Speed Response (A Few Milliseconds)
● Low Current Operation
● Compact and Lightweight

APPLICATIONS
● Combustion Monitoring Apparatus for Gas and Oil Burner
● Fire Alarm Apparatus
● Arson Watch Monitors
● Photoelectronic Counter
● Detection of Ultraviolet Ray Leakage
● Detection of Discharge Phenomenon


other parts : R244  R259  R1753-01  R9454  R9533  R259-01  R1868  R2121  
R2868 PDF
Hamamatsu
Hamamatsu Photonics
R2868_98 FLAME SENSOR UV TRON®

Quick Detection of Flame from Distance, 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 5 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


other parts : R2868_TPT1008E01  
R2868_98 PDF
Hamamatsu
Hamamatsu Photonics
R2868_08 FLAME SENSOR UV TRON®

Quick Detection of Flame from Distance, Compact UV Sensor with High Sensitivity and Wide Directivity, Suitable for Flame Detectors and Fire Alarms.

Hamamatsu R2868 is a UVTRON ultraviolet ON/OFF detector that makes use of the photoelectric effect of metal and the gas multiplication effect. It has a narrow spectral sensitivity of 185 nm to 260 nm, being completely insensitive to visible light. Unlike semiconductor detectors, it dose 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 5 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


other parts : R2868_TPT1008E02  
R2868_08 PDF
Hamamatsu
Hamamatsu Photonics
R2868_TPT1008E02 FLAME SENSOR UV TRON®

Quick Detection of Flame from Distance, Compact UV Sensor with High Sensitivity and Wide Directivity, Suitable for Flame Detectors and Fire Alarms.

Hamamatsu R2868 is a UVTRON ultraviolet ON/OFF detector that makes use of the photoelectric effect of metal and the gas multiplication effect. It has a narrow spectral sensitivity of 185 nm to 260 nm, being completely insensitive to visible light. Unlike semiconductor detectors, it dose 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 5 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


other parts : R2868_08  
R2868_TPT1008E02 PDF
Hamamatsu
Hamamatsu Photonics
R2868_TPT1008E01 FLAME SENSOR UV TRON®

Quick Detection of Flame from Distance, 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 5 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


other parts : R2868_98  
R2868_TPT1008E01 PDF

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