Campbell Scientific SP-LITE Solar Radiation Sensor - Manual (Page 16)

SP-LITE Silicon Pyranometer
12
5.5 Program Example 3, Average and Total Solar Radiation
Wiring for Example 3
Color Function
Example CR1000
Program Channels
Used
White Radiation Signal 1H
Green Signal Reference 1L
Jumpered to
Clear Shield
EXAMPLE 3. Sample Instructions to Measure an Hourly Average Flux
and a Daily Total Flux with a CR1000
'CR1000
'Declare Variables
Public Slr_kW
Public Slr_MJ
'Declare Hourly Data Table
DataTable(Table1,True,-1)
DataInterval(0,60,Min,0)
Average(1,Slr_kW,IEEE4,0)
EndTable
'Declare Daily Data Table
DataTable(Table2,True,-1)
DataInterval(0,1440,Min,0)
Totalize(1,Slr_MJ,IEEE4,0)
EndTable
'Program
BeginProg
Scan(10,Sec,1,0)
'SP-LITE Pyranometer measurements Slr_MJ and Slr_kW:
VoltDiff(Slr_kW,1,mV25,1,True,0,_60Hz,1,0)
If Slr_kW<0 Then Slr_kW=0
Slr_MJ=Slr_kW*0.001
Slr_kW=Slr_kW*0.1
CallTable(Table1)
CallTable(Table2)
NextScan
EndProg