Fireye 3 Ft. Non-Self Check Ultra-Violet Miniature Flame Scanner

3 Ft. Non-Self Check Ultra-Violet Miniature Flame Scanner The UV90 Series scanners are designed for front and lateral (90 Degree) mounting which, in some applications allow the scanners to obtain a clearer view of the flame. The UV90, with its exclusive snug-fit mounting block, eliminates the need for a threaded sight pipe. The UV tube is made of quartz and is filled with a gas that ionizes when struck by UV radiation from the flame. In the absence of UV radiation, the gas acts as an insulator between two electrodes which are mounted inside the tube. These electrodes are energized continuously by a high voltage. During combustion, UV radiation ionizes the gas, causing current pulses to flow between the electrodes. These current pulses result in a flame signal which is transmitted to the amplifier in the control, where it is processed to energize or hold in the flame relay. Note: Image may not be actual representation of item.