Sterilization Radiometer

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Sterilization RadiometerThe X1-1-UV-3726 radiometer from Gigahertz-Optik Inc. enables the effectiveness of UV germicidal irradiation (UVGI) to be accurately determined for both low-pressure mercury germicidal lamps and UV-C LEDs.

The UVGI sterilization method uses UV-C light to break down microorganisms such as viruses and bacteria by altering their DNA and RNA, rendering them unable to replicate. The radiometer measures UV-C irradiance over a wide dynamic range to >100 mW/cm² with a resolution of 0.0001 µW/cm². It is calibrated for spectral responsivity between 250 to 300 nm. Wavelength-dependent calibration factors given in 5-nm increments are incorporated for measuring UV LEDs with known nominal wavelength. Additionally, a 254-nm calibration is included for mercury lamps as well as a general-purpose 260- to 290-nm calibration for non-specific UV-C LEDs. The device has sufficient sensitivity to detect if undesired exposure poses a photobiological safety risk to users.

The X1-1-UV-3726 offers sufficient sensitivity to check for safety compliance and the effectiveness of personal protection equipment (PPE) in accordance with the accepted occupational exposure limit to actinic UV. The handheld meter 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.

Published: May 2020
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ProductsX1-1-UV-3726sterilization radiometerGigahertz-OptikTest & MeasurementLight SourcesBiophotonicslife sciencesmedicinesafetyAmericas

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