EKO MS-80 - Page 67

EKO INSTRUMENTS CO., LTD. - Pyranometer MS-80/80S/80U - Instruction Manual Ver. 1
Pg. 66
Table A4-16. Register No.200-219
200
Cal.Date history0 U32 Calibration History, Date 0
201
202
Cal.Value history0 F32 Calibration history, sensitivity constant 0
203
204
Cal.Date history1 U32 Calibration History, Date 1
205
206
Cal.Value history1 F32 Calibration History, Sensitivity Constant 1
207
208
Cal.Date history2 U32 Calibration History, Date 2
209
210
Cal.Value history2 F32 Calibration History, Sensitivity Constant 2
211
212
Cal.Date history3 U32 Calibration History, Date 3
213
214
Cal.Value history3 F32 Calibration History, Sensitivity Constant 3
215
216
Cal.Date history4 U32 Calibration History, Date 4
217
218
Cal.Value history4 F32 Calibration History, Sensitivity Constant 4
219
Table A4-17. Analog output setting details
Analog output setting
value
Operation modes
0 Output OFF
1 0-1V Mode
2 4-20 mA Mode
3 Manual Mode
A4-11. Cell temperature factor
・ When Pt100 temperature is in Celsius T (°C), use the correction factor a/b/c/d to obtain the temperature
correction value using the following equation.
・ Compensation value TC = a + b(T) + c(T
2
) + d(T
3
)
・ Calculate the solar radiation meter output after temperature correction using the following equation for the
solar radiation meter output V (raw) before temperature correction.
・ Output after temperature compensation V(T) = V(raw)/TC
・ Since the default value is a=1, b=C=d=0, the correction value TC=1 is used, and the raw value is used.
A4-12. Linear correction factor
・ Calculate the solar radiation meter output after linear correction using the following equation using the
coefficient k1/k2/k3/k4 for the solar radiation meter output V(T) after temperature correction.