Portable UV phototube for Flame Detection in Gas

Portable UV phototube for Flame Detection in Gas Model Number :UV2 INTRODUCTION
Flame detection in burners occurs by means of sensors detecting the presence of flame through an electric signal which can be used by ignition and control devices. UV phototubes exploit the ultra-violet radiation emitted by the light generated by the flame; they are especially suitable for applications in which very dissimilar fuels are used.
FEATURES
These sensors are used for flame detection in gas and mixed fuel (gas and oil) burners. UV phototubes consist of a glass bulb filled with gas, containing two electrodes suitably shaped. When supplying both electrodes with AC voltage, if ultra-violet electromagnetic radiation (range from 190 to 290 nm) hits the phototube, the electrons emitted by the negative biased electrode, and captured by the positive biased one, start an ionization process leading to the generation of an electric discharge and hence to the production of electric current. UV1, UV2 and UV3 are the available phototube models; their features and dimensions are described hereunder.
PHOTOTUBE TYPE UV1
PHOTOTUBE TYPE UV2
PHOTOTUBE TYPE UV3