Fireye  火焰检测器 UV90L系列 
Fireye  火焰检测器 UV90L系列 专为正面和侧面（90°）安装而设计，在某些应用中，扫描仪可以更清晰地观察火焰。

Fireye  火焰检测器 UV90L系列 非常适合气体燃料（天然气和丙烷）。 但是，它可用于检测标准燃气，某些废气和轻油燃料（如2号油）的火焰。 可以使用UV火焰检测器测来自较重油的火焰，但未燃烧的燃料罩和/或雾化罩可以阻止UV从火焰区域通向UV管，从而导致令人讨厌的燃烧器/锅炉跳闸。 对于重于2号的燃油，以及将废气与天然气作为主火焰一起燃烧的一些装置，建议使用红外线检测。

Fireye  UV90L Series Scanner
The UV90L Series Scanners are designed for front and lateral (90°) mounting which, in some applications allow the scanners to obtain a clearer view of the flame.

The UV scanner is ideally suited for gaseous fuels (natural gas & propane). However, it can be used in detecting flames from standard fuel gases, some waste gases and light oil fuels such as No. 2 oil. Flames from heavier oils can be detected with UV scanners but the unburned fuel shroud and/or atomization shroud can block passage of the UV from the flame zone to the UV tube, causing nuisance burner/boiler trips. Infrared detection is recommended for fuel oil heavier than No. 2, and some installations where waste gases are burned together with natural gas as a main flame.