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Campbell Scientific CNR4 Net Radiometer User Manual

Page 34

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CNR4 Net Radiometer

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 Rs, Vs_Vx


'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 multiplie

alues for the CNR4

r v

cnr4_mu

1) = pyranometer_up_mult

lt(

cnr4_mult 2) = pyranometer_dn_mult

(

cnr4_mult 3) = pyrgeometer_up_mult

(

cnr

4) = pyrgeometer_dn_mult

4_mult(


Scan (1,Sec,3,0)

PanelTe

temp,250)

mp (logger_

Battery (batt_volt)

'CNR4 radiation measurements
VoltDiff (cnr4(),4,mV20C,1,True ,0,_60Hz,cnr4_mult(),0)

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