dymax PC-3 Посібник з експлуатації - Сторінка 4
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SAFETY
Safety Precautions Must Be Observed By All Personnel
Working Near Or Around Ultraviolet (UV) Light
UV Terminology
The portion of the Electromagnetic spectrum which falls between x-rays and visible light
is called Ultraviolet or UV.
Ultraviolet (UV) radiation can be classified into three
categories: UV-C, UV-B, and UV-A. UV-C is for the wavelengths below 280 nm, UV-B
is for the wavelengths between 280-315 nm, and UV-A denotes wavelengths between
315-380 nm.
Exposure Hazards
Exposure to UV light, even for short periods of time, can be hazardous. The danger
depends upon the exposure time, the intensity of the light, the wavelength, and the
individual's sensitivity to UV. UV-B and UV-C can be considered the most hazardous to
the skin, causing such effects as sunburn. UV-A, UV-B, and UV-C are hazardous to the
eyes, which is why eye protection is important when working around UV light.
The lamps produce minimal amounts of ozone during start-up and no ozone during
operation. At high concentrations, it can cause discomfort, or at sufficiently high levels,
be dangerous.
Safety Guidelines
The National Institute for Occupational Safety and Health (NIOSH) recommends that
exposure to UV energy be controlled and limited in the work place.
The total intensity from 320 to 400 nm hitting unprotected skin or eyes should not
exceed
1 mW/cm² for periods longer than 1000 seconds. For shorter exposure times, the total
radiant energy shall not exceed 1000 mWsec/cm².
Do not operate the unit without the light guide installed into the bezel.
WARNING
With the internal filter installed, the PC-3 Ultra emits UVA and visible light. Never look
directly at the light source while the unit is in use.
TM-023 PN 37099
Rev 05/12/98
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