The earth's ozone layer plays a very important role in protecting living organisms by absorbing the harmful ultraviolet (UV) radiation. However, the ozone layer has seriously became thinner and thinner in recent years and this trend in only now beginning to level out. UV radiation is divided into three wavelength ranges, UV-A (315 - 400nm) radiation, UV-B (280 - 315nm) radiation and UV-C (less than 280nm) radiation. UV-A radiation is hardly absorbed by the ozone layer. So, the UV-A radiation that reaches the earth's surface is not affected by the ozone layer. On the other hand, UV-C radiation is completely absorbed by the ozone layer, and simply does not reach the surface of the earth. However, UV-B radiation is only partially absorbed by ozone, and its spectral character and intensity is significantly changed depending on the thickness of the so-called ozone belt. And, as this UV-B radiation is harmful to living organisms, UV-B radiation is called "harmful radiation". We at EKO offer various types and classes of UV radiometers whose selection depends on the application and measurement purpose.

Traceability
Calibration is the key issue for the selection of UV radiometers that are used for the continuous measurement of solar ultraviolet radiation. EKO's UV radiometers are calibrated against a highly accurate recording ultraviolet spectroradiometer, and are traceable to NIST through NIST-traceable standards of spectral irradiance (spectral lamp standards).

UV Radiometer Calibration >>