Apogee Instruments SU-220 Manuale d'uso - Pagina 16
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Unit Conversion
SU-200 series UV-A sensors are calibrated in energy flux units of W m
value to photon flux units of µmol m
flux units to photon flux.
1) Calculate the sensor output in units of J m
2) Multiply the energy flux units by the conversion factor. It's important to note that each light source needs
a specific conversion factor. The conversion factor used in the example equation is the sunlight
conversion factor.
-2
-1
s
using a conversion factor. Below is an example of how to convert energy
-2
-1
s
.
−2
6 ∗ 10
= 60
60
∗ 0.327
2
-2
. It is possible to convert the energy flux
= 60
2
2
= 19.62
2