vinhquyen Posted June 2, 2015 Report Share Posted June 2, 2015 Hello Sir, I am using SR11-05 sensor in the first The information of sensor: Calibration result: - sensittivity: S= 20.67 x 10^-6 V /(W/m2) ; Calibration uncertainty +- 0.28 x 10^-6 V /(W/m2) In this case, Can i use the formula " scale factor = 119.21 / Calibration sheet number" ? (S = 119.21 / 20.67 = 5.76; offset=0) Please help me Thank you very much vinhquyen Link to comment Share on other sites More sharing options...
vinhquyen Posted June 2, 2015 Author Report Share Posted June 2, 2015 Hello Sir, I am so sorry for mistaking. In this case, scale= 29.86 /20.67= 1.445; offset=0 Best regards, Vinhquyen Link to comment Share on other sites More sharing options...
pcorcoran Posted June 2, 2015 Report Share Posted June 2, 2015 Hello Vinhquyen, Thank you for your post. To properly scale thermopile sensors you need to consult the "Scaling_Thermopile_Sensors_AppNote.pdf". I'm not attaching it here because the information may change overtime and post may not be updated with the most recent version. Please refer to our website or email support@rnrgsystems.com for a current copy. With a Hukseflux SR11, you'll need to use a "SCM Constant" of 29.875 and divide by the sensors calibration (sensitivity) value. Scale Factor = SCM Constant / Sensitivity. Scale Factor = 29.875 / 20.67 = 1.445. The offset will be 0. Please contact support@rnrgsystems.com with any further questions. Thank you! Pearse Link to comment Share on other sites More sharing options...
pcorcoran Posted June 2, 2015 Report Share Posted June 2, 2015 You are exactly right Vinhquyen! Pearse Link to comment Share on other sites More sharing options...
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