Instruction manual

ManualsBrandsCampbell ManualsBusiness equipmentCNR4

Appendix B. Example Programs

'VOLTAGE EXCITATION

'VX1 CNR4 thermistor voltage excitation (red)

'CNR4 sensor

Public logger_temp, batt_volt

Public cnr4(4)

Alias cnr4(1) = short_up

Alias cnr4(2) = short_dn

Alias cnr4(3) = long_up

Alias cnr4(4) = long_dn

Public cnr4_T_C 'CNR4 thermistor temperature in Celcius

Public cnr4_T_K 'CNR4 thermistor temperature in Kelvin

Public long_up_corr 'Downwelling long-wave radiation with temperature correction

Public long_dn_corr 'Upwelling long-wave radiation with temperature correction

Public Rs_net 'short-wave net radiation

Public Rl_net 'long-wave net radiation

Public albedo 'Albedo

Public Rn 'total net radiation

Units logger_temp = degC

Units batt_volt = volts

Units short_up = W/m^2

Units short_dn = W/m^2

Units long_up = W/m^2

Units long_dn = W/m^2

Units cnr4_T_C = deg_C

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 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)

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