Kippzonen LOGBOX SD Data Logger Manual de usuario descargar pdf (Pagina 31)

12 POLYNOMIALS CALCULATION FOR SENSORS

This section will explain how to change the polynomial to be applied when you are using radiometers

inside the Logbox SD graphical user interface.

Each pre-defined radiometer has a default Polynomial. (A1) This could be set to100 or 10, and needs to be

changed to have a correct reliable output in W/m².

Step1 : Look at your radiometer, and locate the sensitivity. This is located on the radiometer itself and on

the calibration certificate. (Example: 22,14µV/W/m

)

Step2: Calculate your own polynomial by applying the next formula : A1=1000/sensitivity

The reason for his is that the Logbox SD is measuring in mV and not in µV.

Step 3: Change your polynomial with the outcome of the formula. (1000/22,14µV/W/m

= 45.16)

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Kippzonen LOGBOX SD Data Logger Manual de usuario Pagina 31