What is the difference between the SOLRAD and the METEON?
The SOLRAD can be used as a very cost-effective and well performing real-time interface to a PC serial port, logging the data on the PC with the supplied software. The METEON however, cannot do this. You need to download the data periodically using the supplied software. The METEON interface is USB. I have an outdoor reading of 2000 to 4000 W/m² with my METEON. This does not make sense since theoretically, readings should be less than the solar constant (1360 W/m²). Please check the calibration factor of the pyranometer which is set in the METEON. A wrong calibration factor of the instrument will result in wrong measurements. Also check if the correct instrument is selected. If we take an interval of 1 minute then the sum of all the averages for 1 day it says 394838 W/m². If we set it for 30 minutes, then we will get 1 average per 30 minutes so the sum of all these averages for 1 day would be 13161 W/m². What are we doing wrong? Adding the intervals without dividing this by the (interv
