Campbell CNR4 Manual de instrucciones descargar pdf (Pagina 50)

Appendix B. Example Programs

Units cnr4_T_K = K

Units long_up_corr = W/m^2

Units long_dn_corr = W/m^2

Units Rs_net = W/m^2

Units Rl_net = W/m^2

Units albedo = W/m^2

Units Rn = W/m^2

Dim cnr4_prt_R, Rs_R0

'CNR4 sensitivities: refer to the Certificate of Calibration from Kipp & Zonen for sensitivity values

'for each probes, and enter them below.

Const pyranometer_up_sensitivity = 15.35 'unique sensitivity for upper pyranometer

'(microV/W/m^2)

Const pyranometer_dn_sensitivity = 15.41 'unique sensitivity for lower pyranometer

'(microV/W/m^2)

Const pyrgeometer_up_sensitivity = 8.50 'unique sensitivity for upper pyrgeometer

'(microV/W/m^2)

Const pyrgeometer_dn_sensitivity = 7.09 'unique sensitivity for lower pyrgeometer

'(microV/W/m^2)

'CNR4 multipliers

Public cnr4_mult(4)

Const pyranometer_up_mult = 1000/pyranometer_up_sensitivity '(W/m^2/mV)

Const pyranometer_dn_mult = 1000/pyranometer_dn_sensitivity '(W/m^2/mV)

Const pyrgeometer_up_mult = 1000/pyrgeometer_up_sensitivity '(W/m^2/mV)

Const pyrgeometer_dn_mult = 1000/pyrgeometer_dn_sensitivity '(W/m^2/mV)

DataTable (cnr4_data,True,-1)

DataInterval (0,60,Min,10)

CardOut (1,-1)

Minimum (1,batt_volt,FP2,0,False)

Sample (1,logger_temp,FP2)

Average (4,cnr4(1),IEEE4,False)

Average (1,cnr4_T_C,IEEE4,False)

Average (1,cnr4_T_K,IEEE4,False)

Average (1,long_up_corr,IEEE4,False)

Average (1,long_dn_corr,IEEE4,False)

Average (1,Rs_net,IEEE4,False)

Average (1,Rl_net,IEEE4,False)

Average (1,albedo,IEEE4,False)

Average (1,Rn,IEEE4,False)

EndTable

DataTable (cnr4_ts,True,-1)

DataInterval (0,1,Sec,10)

CardOut (1,-1)

Sample (4,cnr4(1),IEEE4)

Sample (1,cnr4_T_K,IEEE4)

EndTable

BeginProg

'Load the multiplier values for the CNR4

cnr4_mult(1) = pyranometer_up_mult

cnr4_mult(2) = pyranometer_dn_mult

cnr4_mult(3) = pyrgeometer_up_mult

cnr4_mult(4) = pyrgeometer_dn_mult

Scan (1,Sec,3,0)

PanelTemp (logger_temp,250)

Battery (batt_volt)

'CNR4 radiation measurements

VoltDiff (cnr4(),4,mV20C,1,True ,0,_60Hz,cnr4_mult(),0)

'PRT (Pt-100) temperature measurement

Resistance (cnr4_prt_R,1,mV200,8,Ix1,1,1500,True,True,0,_60Hz,1,0)

Rs_R0 = cnr4_prt_R/100

B-12

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Campbell CNR4 Manual de instrucciones Pagina 50

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