UVA Detector with Beam Splitter Adapter

The PMA2114 UVA detector provides fast and accurate irradiance measurement in the UVA region from Solar Simulators manufactured by Solar Light Co.

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FEATURES

• High sensitivity
• Dynamic range 2*10⁵
• Excellent long term stability
• Cosine corrected
• NIST traceable calibration
• Radiometric units

APPLICATIONS

• Laboratory and industrial radiometry
• UV curing, printing and photolithography
• Skin and SPF testing
• Clinical studies
• Phototherapy
• Environmental monitoring
• Material testing
• UV-A transmission measurements

> Detectors need to be used with a Radiometer

> Analog version of this detector can be used with any 0 to 5 VDC or 4 to 20mA recording device

Special mounting hardware allows direct coupling with the beam-splitter available for 15S and 16S Solar Simulators. Its spectral response covers the 320 to 400nm range (Fig. 1). The measured irradiance is displayed in mW/cm² or W/m². Consequently, the integrated dose is shown in Joules/cm² or kJoules/m². The PMA2114 has a resolution of 0.001 mW/cm² and a full scale of 200mW/cm² allowing measurement of very week and very strong signals with the same detector. The effect of stray light is negligible.

In conjunction with the Solar Simulator and XPS200 Xenon Lamp Power Supply the PMA2100 with the PMA2103 detector can operate as a smart dose controller/monitor substantially enhancing the functionality of the Solar Simulator.

UVA is less biologically effective than UV-B (280-320nm). However, because of its much greater intensity in sunlight and many artificial sources and the greater period of the day in which sunlight UVA remains at high intensities, UVA can have significant biological effect. The UV-A radiation can also penetrate deeply into
human living tissue through the skin. Commonly known effects of UV-A include: photosensitization of various chemicals, pigmentation of the skin, induction of polymerization. The UVA can also cause erythema or DNA damage in humans or animals, however large doses of UV-A are needed and the damage mechanisms are different than these of UV-B.

Several biologic action spectra, functions relating wavelength of the radiation and its biologic effect, are shown in Figure 3. While they all sow strong dominance of UV-B effectiveness there is still fair UVA response.

Common sources of UV-A include:

• low pressure florescent lamps
• high pressure mercury and metal halide lamps
• high pressure xenon lamps
• sunlight

Figure 3: Selected Biologic Action Spectra

Specifications

• Spectral response 320-400nm, Figure 1
• Angular response 5% for angles <60°
• Range 200 [mW/cm²] or 2000 [W/m²]
• Display resolution 0.001 [mW/cm²], 0.01[W/m²]
• Operating environment 32 to 120 °F (0 to +50 °C) no precipitation
• Temperature coefficient <0.1%/°C
• Cable  5ft (1.5m)
• Diameter 1.6" (40.6 mm)
• Height 1.8" (45.8 mm)
• Weight 7.1 oz. (200 grams)
  

Analog versions of this detector are available See PMA1114

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Download Application Notes & Technical Papers:

Interfacing PMA detectors to a Campbell data logger - app111.pdf

PMA Series capabilities and applications - app112.pdf

PMA detector integration - app120.pdf

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