UVA Sensor PMA1110 

The PMA1110 Analog UVA sensor provides fast and accurate irradiance measurement in the UVA region. Its spectral response covers the 320 to 400nm range.  The Teflon diffuser assures an angular response close to a cosine function (Lambertian response) making it suitable for measuring diffused radiation or radiation from extended sources. 

> Return to Sensor Selection Guide

                                             U.S.Pat.5,946,641

U.S.Pat.5,790,432

PMA1110           UVA Sensor

Features:

• High sensitivity
• Dynamic range 2*10⁵
• Excellent long term stability
• Cosine corrected
• NIST traceable calibration
• Radiometric units
• 320nm to 400nm spectral range 

> Weatherproof UVA Detector available

> Underwater UVA Detector available

> Wiring Diagram

Applications:

Description:

The PMA1110 UVA sensor is ideal for measuring mercury, xenon, metal halide or fluorescent lamps, commonly used for studies in the UVA region, as well as sunlight. 

The PMA1110 UVA sensor has a resolution of 0.001 mW/cm² and a full scale of 200mW/cm² allowing measurement of very weak and very strong signals with the same sensor. The effect of stray light is negligible. The unit can also be configured to measure the range 0-1000mJ/cm²

UVA is less biologically effective than UVB (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 UVA radiation can also penetrate deeply into human living tissue through the skin. Commonly known effects of UVA 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 UVA are needed and the damage mechanisms are different than these of UVB

Common sources of UVA Light:

• Low pressure fluorescent lamps
• Cool white fluorescent
• High pressure mercury and metal halide lamps
• High pressure xenon lamps
• Sunlight

> PMA1110 UVA Sensor Spectral Response

UVA Sensor Specifications:

• Spectral response: 320-400nm, figure 1
• Angular response: 5% for angles <60°
• Range: 200 [mW/cm²] or 2000 [W/m²] or 0 - 1000 [mJ/cm²]
• 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)

Technical Papers and Protocols:

> ICH Harmonised Tripartite Guideline - Stability Testing: Photostability Testing of New Drug Substances and Products.

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

> PMA Series capabilities and applications - app112.pdf

> PMA detector integration - app120.pdf

> Return to Sensor Selection Guide