Campbell Scientific CNR4 Net Radiometer User Manual
Page 30

CNR4 Net Radiometer
Average short-wave net radiation
Average long-wave net radiation
Average
albedo
Average
net
radiation
'CR1000 Series Dat logger
a
'
'CNR4 program
'This program meas
er
ures CNR4 four-component net radiomet
'This program also
NR4
measures the thermistor inside the C
'
'User must enter the sensitivity values for all four probes in the program and save/compile
'prior to downloading it to the datalogger.
'Search for the text string "unique" to find places to enter the sensitivity values.
'
'Wiring Instructions
'
'ANALOG CHANNELS
'1H CNR4 Pyranometer Upper signal (red)
'1L CNR4 Pyranometer Upper signal reference (blue)
'gnd jumper to 1L
'
'2H CNR4 Pyranometer Lower signal (white)
'2L CNR4 Pyranometer Lower signal reference (black)
'gnd jumper to 2L
'
'3H CNR4 Pyrgeometer Upper signal (grey)
'3L CNR4 Pyrgeometer Upper signal reference (yellow)
'gnd jumper to 3L
'
'4H CNR4 Pyrgeometer Lower signal (brown)
'4L CNR4 Pyrgeometer Lower signal reference (green)
'gnd jumper to 4L
' CNR4 shield (clear)
'
'
'
'8H
'8L CNR4 thermistor signal (white)
'gnd CNR4 thermistor signal reference (black)
' CNR4 thermistor shield (clear)
'
'VOLTAGE EXCITATION
'
'EX2 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
22