LED radiometer X1-1-UV-3726

UV

Calibration factors for UV LEDs from 250 nm to 300 nm and 254 nm low pressure Hg lamps Handheld meter with separate detector Displays irradiance and dose with peak-hold function Pre-aging for long time stability Cosine field-of-view Ultraviolet germicidal irradiation (UVGI) is a sterilization method that uses short wavelength light in the UV-C region (100 nm to 400 nm) to break down microorganisms such as viruses, bacteria, yeasts and fungi. The maximum effectiveness for germicidal activity is around 265 nm. The DNA and RNA of microorganisms absorbs the UV-C radiation, which causes changes in their structure rendering them unable to replicate. Microorganisms can be destroyed in a very short time if exposed to sufficiently high intensity UV-C radiation. To ensure the germicidal effect, the UV dose must be checked. This is achieved by measuring the UV irradiance at the location of exposure using a UV radiometer. In addition to checking the desired germicidal effect of high intensity UV radiation, the potential risk to skin and eyes from relatively low UV intensity must also be determined if there is the possibility of human exposure to the UV radiation. Carrying out both measurements with one device requires UV radiometers with a very large dynamic range.