Why Do We Use UVC Digital Light Meter to Test Germicidal Lamps?

From:Linshang Time:2020/03/19 11:30:00 Browse:241
Ultraviolet rays can kill coronavirus, but if the energy is not up to the standard, it will not have a bactericidal effect. Therefore, it is necessary to detect the germicidal lamp with an UVC digital light meter.

The epidemic was sudden and some vertical categories that were not usually noticed quickly became popular. Materials related to epidemic prevention and control, such as masks, goggles and disinfection water, have become popular. After this epidemic, the whole society has improved health awareness. The position of the disinfection and cleaning industry in protecting the health of people's lives has undoubtedly been improved. Among them, ultraviolet sterilization as a means of disinfection and protection, has also quietly accelerated the pace of growth due to the epidemic. UVC digital light meter can be used to detect UV radiation intensity to ensure the effect of ultraviolet sterilization lamp.

1. Ultraviolet rays can kill coronavirus

Prevention and control of epidemic situation, how does UV germicidal lamp work, what direction does UV germicidal technology evolve in the future? What kind of confusion does UV germicidal application face? During the "epidemic" of war, ultraviolet rays can effectively inactivate coronavirus. Ultraviolet disinfection is an ancient and effective method. 

During the SARS period, experts from the Institute of Viral Disease Control and Prevention of the Chinese Center for Disease Control and Prevention found that the use of ultraviolet light with an intensity of more than 90 μW / cm² for 30 minutes to irradiate coronavirus can kill the SARS virus. The "Pneumonitis Diagnosis and Treatment Program for New Coronavirus Infection (Trial Version 5)" states that the new coronavirus is sensitive to ultraviolet light. Recent studies have found a correlation between the new coronavirus and SARS coronavirus. Therefore, theoretically and rationally using ultraviolet rays can effectively inactivate coronavirus.

2. Why do we choose UV sterilization?

The principle of ultraviolet disinfection is to use high-energy ultraviolet light to break the DNA double helix, so as to achieve the inactivation of bacteria and viruses. It is understood that compared with chemical sterilization, UV has the advantage of high sterilization efficiency. Inactivation is generally completed within a few seconds and does not produce other chemical pollutants. Because of its convenient operation, it can be applied to all spaces. UV germicidal lamps have become popular products on major e-commerce platforms. It is also an important sterilization equipment in front-line medical and health institutions. These professional ultraviolet sterilization lamps can not only eliminate the virus in the hospital room, but also greatly reduce the daily disinfection of nurses, allowing nurses to set aside more time to care for patients.

UV germicidal lamp can also inactivate microorganisms. Households can install ultraviolet water purification systems to purify water. Air purifiers equipped with ultraviolet lamps can harmless bacteria in the air.

3. Necessity of detecting germicidal lamp with UVC digital light meter

Ultraviolet rays must meet certain requirements for effective sterilization. Pay attention to the wavelength, dose and time of the UV light source. That is, it must be UVC band with a wavelength below 280 nm. Different bacteria and viruses must meet a certain exposure dose and time, otherwise it cannot be inactivated.

The UV band can be divided into different UVA, UVB and UVC bands. UVC is the wavelength with the shortest wavelength and the highest energy. In fact, for sterilization, the most effective is UVC, a band called deep ultraviolet. In deep UV sterilization, standardization does face a series of challenges. For example, UV mercury lamp sterilization is mainly at 253.7nm, while UVC LED wavelength is mainly distributed at 260-280nm, which brings a series of differences for the solutions of subsequent applications.

UVC digital light meter

LS126C UVC Digital Light Meter

Therefore, it is necessary to test the germicidal lamp with a UVC digital light meter. If the energy of the germicidal lamp is not qualified, it will not serve the purpose of sterilization. For the energy detection of germicidal lamps, it is recommended to use the Linshang LS126C UVC digital light meter. Because this instrument has powerful intelligent statistical functions, it can measure real-time power value, maximum value, minimum value, average value, measurement time, test date and time. The real-time clock function of UV light meter can be used to trace the test date and time of historical data. More importantly, the instrument also has a Bluetooth function, which can perform unattended measurement, avoiding burns when measuring ultraviolet rays, making the measurement very convenient.

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