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drift correction.
A "ChemData.log" file allows users to quickly save samples
for later viewing or printing.
////////////////////////////////////////////////////////////////
UV Monitor
//////////
This application is also started when the user has selected
View->Irradiance->watts per square meter AND then clicks on
the yellow light bulb icon. The spectrometer needs to have a
proper irradiance calibration for the UV range from 200-400nm.
Both U.S. FDA or Spanish UV health standards can be displayed.
An EPP2000C UV-VIS range 200-850nm must have an IRRAD-CAL-UV.
A standard IRRAD-CAL from 300-850nm will not properly enable
UVc monitor. An EPP2000-UV2 range 200-400nm with an IRRAD-
CAL-UV also works well for the UV monitor display application.
Computations are provided for UVa, UVb, and UVc in watts per
square meter including UVa/b ratio, UVb and VIS-IR power, and
time in minutes to the skin (Te) erythema action as prescribed
by algorithms found on the U.S. FDA (Food and Drug Administra-
tions) website.
An override file can be created to limit low UV measurements
to begin at 225nm or 250nm instead of 200nm. Create a file
in the SpectraWiz directory named "UV250." or "UV230." to
enable this feature, otherwise the default is 200nm.
_______________
U.S FDA display____________________________
Irradiance values in watts per square meter
UVc=>200-280nm Uvb=>280-320nm UVa=>320-400nm
PowerUVb=>280-302nm PowerVIS-NIR=>400-850nm
Te minutes = weighted irradiance 250-400nm
Te weighting
------------
250-298nm -> 1
299-328nm -> 1 * power(0.114 * (302-nm))
329-400nm -> 1 * power(0.0161* (159-nm))
_______________
Spanish display_______________________________
Effective Irradiance in watts per square meter
UVc=250-298nm, Uvb=299=328nm, UVa=329-400nm
Power<295=>200-294nm PowerVIS-NIR=>400-850nm
Te minutes = weighted effective irradiance 250-400nm
Te weighting
------------
250-298nm -> 1
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