Germicidal Light Measurement

Use of ultraviolet for germicidal disinfection is a technology which can be applied to air, water and surfaces. Scroll down for our selection of germicidal light meter systems.

Germicidal UV disinfection rapidly replacing traditional methods

Germicidal disinfection by exposure to ultraviolet (UV) light is seeing rapid deployment in food, pharmaceutical, hospitality, and medical industries throughout the world due to the effectiveness, ease of use, adaptability, and relatively low expense of the technology as compared with the more complex, time consuming, and costly methods currently in use such as chemical, steam, or heat disinfection.

Low pressure mercury lamps provide most germicidal “bang for the buck”

UV irradiation kills a broad range of microbes, in essence, breaking the molecular bonds that hold the organism’s DNA together. The most effective wavelength for accomplishing this is 263 nanometers (nm), however, due to the more readily available and moderately effective output at 254 nm produced by inexpensive low pressure Mercury (Hg) lamps , 254 nm has become the generally accepted action wavelength and low pressure Hg lamps the most utilized in low to medium intensity germicidal applications such as food processing, low volume water treatment, and medical service and manufacturing. The broader spectral output and greater intensity from medium pressure UV lamps means they will continue to be utilized in applications requiring high intensity germicidal UV exposure where the large numbers of low pressure Hg lamps required to meet the intensity levels would be impractical due to cost and space, such as in large volume municipal water treatment facilities.

International Light Technologies offers a wide range of germicidal solutions

IL offers a variety of germicidal radiometers for testing effective germicidal irradiance for many lamp types including narrowband (line) 254 nm, effective germicidal measurements conforming to the IES Luckiesh and DIN standards, and unfiltered systems specifically designed for testing low pressure mercury lamps where 95% of the output is at 254 nm. Many IL systems can be customized for use underwater. IL also offers a variety of input optics including right angle micro probes, PIN probes and a variety of fiber optics to allow sensing in small, remote and hard to reach locations.