Radiometer UVA Sensor is used with the Solar Light UV Radiometers
Features & Applications: The Radiometer
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.
The 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 measured
irradiance is displayed in mW/cm2 or W/m2. Consequently, the
integrated dose is shown in Joules/cm2 or kJoules/m2. The PMA2110
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 detector. The effect of stray light is negligible.
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.
Common sources
of UVA Light:
-
Low
pressure fluorescent lamps
Cool
white fluorescent
High
pressure mercury and metal halide lamps
High
pressure xenon lamps
-
Sunlight
Features:
- NIST Certification
- High sensitivity
- Dynamic range
2*105
- Excellent
long term stability
- Cosine corrected
- NIST traceable
calibration
- Radiometric
units
- 320nm to 400nm
spectral range
- Meets ICH
guidelines for photostability testing
- Needs to be
used with radiometer
Applications:
- Laboratory
and industrial radiometry Photostability testing UV curing,
printing and photolithography Skin and SPF testing Clinical
studies Phototherapy Environmental monitoring Material
testing
- UV-A transmission
measurements
Spec
Summary:
Spectral
response: |
320-400nm |
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: |
1ft, retractable to 5ft (0.3m/1.5m) |
Diameter: |
1.6" (40.6 mm) |
Height: |
1.8" (45.8 mm) |
Weight: |
7.1 oz. (200 grams) |
|
