LPUVA02
- 3 -
V2.0
1
INTRODUCTION
The
LPUVA02
radiometer measures the global irradiance in the UVA spectral range
on a flat surface (W/m
2
). Measured irradiance is the result of the sum of direct solar
irradiance and of diffuse irradiance.
The radiometer can also be used for monitoring indoor UVA emissions.
Available in the following versions:
•
LPUVA02
:
PASSIVE
•
LPUVA02AC
:
ACTIVE with 4..20 mA CURRENT output (0…200 W/m
2
)
•
LPUVA02AV
:
ACTIVE with 0..1 or 0..5 or 0..10 V VOLTAGE output to be de-
fined when ordering (0…200 W/m
2
).
Each radiometer is individually calibrated at the factory and is distinguished by its own
calibration factor. The calibration is performed by comparison with the primary stand-
ard of the Delta OHM metrology laboratory, using the emission line at 365 nm of a
suitably filtered Xe-Hg lamp.
Note: there is no international standard for the calibration of UVA radiometers; there-
fore, when considering the value of the calibration coefficient, the method by which it
was obtained must be taken into account; the same radiometer calibrated with differ-
ent procedures can have different calibration factors.
