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222 nm UV-C Radiometer for Excimer Lamps

Gigahertz-Optik Inc.Request Info
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222nm UV-C Radiometer for Excimer LampsThe X1-1-UV-3727 handheld radiometer provides a real time display of irradiance or dose and includes a peak-hold function. The device may also be operated via its USB interface with optional S-X1 software. Each meter is supplied with a traceable calibration certificate from the ISO-17025 accredited Gigahertz-Optik optical radiation calibration laboratory. Far-UVC light, for example 222 nm produced by Kr-Cl excimer lamps, has been shown to effectively inactivate bacteria but with less photobiological hazard for humans. This is because far-UVC light cannot penetrate human skin or eyes as deeply as longer wavelength UV radiation. The UV-3727 detector provides the uncommon ability to measure 222 nm excimer lamps (Kr-Cl) which are becoming more popular in germicidal applications. Additionally, it enables the measurement of other UVC germicidal source types including low pressure Hg lamps and UV LEDs.

The UV-3727 detector incorporates a photodiode that has extended deep-UV responsivity. Only radiation in the required spectral sensitivity range is measured. In addition to its calibration at 222nm, selectable calibration factors for common UV LED wavelengths and low-pressure Hg lamps are included. To properly measure irradiance the detector’s entrance optic is a diffuser with a cosine field of view, which is positioned in the desired plane of measurement. The diffuser and photodiode are pre-aged to significantly reduce solarization effects that results from long term exposure to UV radiation. The UV-3727 detector offers a strictly linear relationship between the measurement signal and the irradiance in the range from a few pico amps to several micro amps. The Gigahertz-Optik X1-1-UV-3727 radiometer provides a linear measurement range up to at least 1000 mW / cm² with a resolution of 0.002µW / cm² (@222 nm). An optional S-SDK-X20 software development kit is also available for self-programmers.

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ProductsTest & Measurementexcimer lampUV-CUVCUVC disinfectiongermicidalUVGIUV germicidal irradianceUV meterUV radiometer

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