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How to test the lamp of UV disinfection equipment?

The lamp of the ultraviolet disinfection equipment is actually a low-pressure mercury lamp. Low-pressure mercury lamps are excited by lower-pressure mercury vapor (<10-2Pa) to emit ultraviolet light. There are two main spectral lines: one is 253.7nm wavelength; the other is 185nm wavelength, both of which are Ultraviolet rays that are invisible to the naked eye.

Installation and testing

Ultraviolet disinfection equipment for the measurement of ultraviolet light using a special instrument for measuring ultraviolet light - ultraviolet irradiance meter, the UV lamp is placed horizontally during the test, the detector of the ultraviolet irradiance meter is placed below the center of the tube One meter away from the vertical distance, while shielding stray light. The UV germicidal lamp needs to be turned on for a while, and the measured data is more informative after the light source is stabilized.

Generally, the ultraviolet radiation meter is composed of two parts: the measuring display and the detector (ie, the probe). Considering that the detector needs to be placed 1m below the vertical direction of the light source when measuring, the probe of the new LS126C ultraviolet radiation meter is placed small. The strong magnet of the block facilitates the fixing of the detector during the measurement process. As long as the metal object that the magnet can absorb is placed in the corresponding orientation, the detector can be firmly fixed, and then the test can be facilitated.

Ultraviolet light disinfection equipment The ultraviolet light emitted by the disinfection equipment lamp is an invisible light. The wavelength of 253.7nm can play a good bactericidal effect. This is because the absorption line of the light wave of the cell has a regularity at 230~280nm. Ultraviolet light has a large absorption of zui, and the absorbed ultraviolet light actually acts on the genetic material of the cell, DNA, which acts as an actinic act.

Personal safety when using germicidal lamps: Since ultraviolet rays kill cells, it is important to observe that they cannot be directly exposed to human skin to avoid injury.

The ultraviolet disinfection equipment disinfection equipment needs to have a time accumulation prompt function and an intensity alarm function to remind the user to replace the ultraviolet light tube in time.