Kipp&Zonen LOGBOX SD Data Logger - Manual (Page 37)

37
Polynomials for UVS:
Polynomial in mV:
To have the output values recorded in mV (miliVolt) we will have to enter the following
polynomial
A1=1
If you are only interested in the UV values recorded by the instrument you would probably
like to have these reading in W/m².
Polynomial in W/m²:
To have the output values recorded in W/m² we will need to make some calculations using
the mean sensitivity values of the UVS instruments.
The mean sensitivity values can be located on the supplied calibration certificates.
Example:
The calibration certificate tells us that the mean sensitivity of the UVA = 30.083 W/m²/V and
the mean sensitivity of the UVB =1.879 W/m²/V.
In order to have the correct engineering units, W/m², we need to apply the following
equation:
A1=Mean sensitivity/1000
A1 (UVA)=30.083/1000=0.030083
A1 (UVB)=1.879/1000=0.001879
Now we can enter them inside the coefficient area:
The illustration above will result in the UVA and UVB readings to be in W/m² and the
temperature to be in V.
Please note that this cannot be used in combination with the Uviator application.
Uviator requires all outputs to be in Volt!